CHECK VALVE f WAFER TYPE f DUAL DISC

ASME CLASS 150 f DUCTILE IRON BODY f NSF COATING

s c o m p l i e s w i t h a p i 594 d i m e n s i o n s

t h e c v41a-d i m e e t s a p i 594 a s m e c l a s s 125 fac e -to - fac e d i m e n s i o n s . t h i s 

a l l ow s t h e c v41a-d i to b e a n at u r a l r e p l ac e m e n t f o r o u t dat e d c a s t 

i ro n va lv e s w h i l e ac h i e v i n g t h e s u p e r i o r m at e r i a l b e n e f i t s o f d u c t i l e i ro n.

s n s f a p p rov e d c oat i n g

t h e b o dy o f t h i s va lv e i s p rov i d e d w i t h a d u r a b l e e p ox y c oat i n g. t h i s c oat i n g

o f f e r s h i g h- b u i l d e d g e p rot e c t i o n a n d e x c e l l e n t c o r ro s i o n r e s i s ta n c e . t h i s

c oat i n g i s c e rt i f i e d b y n s f i n t e r n at i o n a l i n ac c o r da n c e w i t h n s f /a n s i 

s ta n da r d 61.

s d u c t i l e i ro n b o dy

d u c t i l e i ro n b o dy m a i n ta i n s t h e a n t i- c o r ro s i v e p ro p e rt i e s o f c a s t i ro n 

w h i l e ac h i e v i n g a y i e l d s t r e n g t h c o m pa r a b l e to c a r b o n s t e e l . d u c t i l e 

i ro n a l s o o f f e r s h i g h e r p r e s s u r e /t e m p e r at u r e r at i n g s t h a n c a s t i ro n. 

s c o s t e f f i c i e n t d e s i g n

l ow w e i g h t a n d s h o rt l ay i n g l e n g t h p ro d u c e s av i n g s i n i n i t i a l c o s t, 

s pac e r e q u i r e m e n t s , a n d i n s ta l l at i o n w h e n c o m pa r e d to f u l l - b o dy, 

s w i n g-t y p e c h e c k va lv e s .

s m i n i m a l h e a d l o s s

c o n to u r o f b o dy p rov i d e s a s h o rt a n d s t r a i g h t f l ow pat h t h at g e n e r at e s

v e ry l i t t l e t u r b u l e n c e . a d d i t i o n a l ly, t h e s p r i n g- l oa d e d d i s c s a r e d e s i g n e d

w i t h v e ry l ow c r ac k i n g p r e s s u r e w h i c h r e d u c e s t h e a m o u n t o f e n e r g y

r e q u i r e d to o p e n t h e va lv e .

s q u i c k c l o s u r e to r e d u c e wat e r h a m m e r

s h u t- o f f i s ac h i e v e d v i a t h e f u l ly au to m at i c , s p r i n g-a s s i s t e d d i s c s t h at

c l o s e n e a r z e ro f l ow v e l o c i t y. t h e l i g h t w e i g h t, s p l i t d i s c d e s i g n 

c r e at e s a p o s i t i v e s h u to f f p r i o r to f l ow r e v e r s a l a n d h e l p s to k e e p 

s l a m m i n g a n d s u r g e s to a m i n i m u m.

MODEL: CV 41A-DI 

 Body: Ductile Iron

 Seats: Buna, Viton & EPDM

 Discs: Stainless Steel & Aluminum Bronze

TECHNICAL T

TITAN

TITAN FLOW CONTROL, INC.

AAPPLICATIONS

FEATURES F

Tel: 910-735-0000 s Fax: 910-738-3848 s titan@titanfci.com s www.titanfci.com

290 Corporate Drive s PO Box 7408 s Lumberton, NC 28358

YOUR PIPELINE TO THE FUTURE!

TITAN FLOW CONTROL, INC.

PR

DI  ASTM 536 - CLASS 15

WOG (Non-shock): 250 PSI @ 100 °F 

S

T

EPDM: -20 ~ 300 °F

BUNA-N: -20 ~ 250 °F 

VITON: -40 ~ 400 °F

SPRING MATERIAL

MAXIMUM TEMPERATURE

SS ASTM A182 Gr. 316: 450 °F

SIZES: 2" ~ 24"

LARGER SIZES AVAILABLE 

UPON REQUEST

CV41A-0517

NEWLY 

 DESIGNED...

Meets API 594

bu n a- n p ro p e rt i e s: m o s t w i d e ly u s e d e l a s to m e r. g o o d f o r m o s t p e t ro l e u m o i l s a n d f l u i d s , s i l i c o n e

g r e a s e s a n d o i l s , a n d c o l d wat e r. e x c e l l e n t c o m p r e s s i o n s e t, t e a r, a n d a b r a s i o n r e s i s ta n c e . p o o r w e at h e r

r e s i s ta n c e a n d m o d e r at e h e at r e s i s ta n c e . n ot r e c o m m e n d e d f o r s e v e r e o z o n e -r e s i s ta n t a p p l i c at i o n s .

v i to n p ro p e rt i e s: o f f e r s a b roa d r a n g e o f c h e m i c a l r e s i s ta n c e a n d e x c e l l e n t h e at r e s i s ta n c e . g o o d

m e c h a n i c a l p ro p e rt i e s a n d c o m p r e s s i o n s e t r e s i s ta n c e . o f t e n u s e d i n a p p l i c at i o n s w h e r e n ot h i n g e l s e w i l l

wo r k. fa i r l ow t e m p e r at u r e r e s i s ta n c e a n d l i m i t e d h ot-wat e r r e s i s ta n c e a n d s h r i n k ag e . 

e p d m p ro p e rt i e s: p ro b a b ly t h e m o s t wat e r r e s i s ta n t ru b b e r ava i l a b l e . i t h a s g o o d r e s i s ta n c e to m i l d

ac i d s , a l k a l i s , s i l i c o n e o i l s /g r e a s e s , k e to n e s , a l c o h o l s a n d ot h e r p o l a r s o lv e n t s . i t i s n ot r e c o m m e n d e d

f o r u s e w i t h p e t ro l e u m o i l s , d i- e s t e r l u b r i c a n t s , m i n e r a l o i l s , n o n- p o l a r s o lv e n t s o r a ro m at i c f u e l s . 

The above data represents common market and service applications. No representation or guarantee, expressed or implied, is given due to the numerous variations 

of concentrations, temperatures and flow conditions that may occur during actual service.

CV 41A meets AWWA C518 Face-to-Face Dimensions.
6

1

3

4

2

5

8

Outlet Side

TITAN FLOW CONTROL, Inc.

290 Corporate Drive E-mail: titan@titanfci.com

Lumberton, NC 28358 Web: www.titanfci.com

Tel: 910.735.0000 Fax: 910.738.3848

ASME 

Class

150

CHECK VALVE • WAFER TYPE • DUAL DISC

MODEL: CV 41A-DI (Ductile Iron Body)

Buna-N, Viton, or EPDM Seats

Stainless Steel or Bronze Discs

REFERENCED STANDARDS & CODES

CODE DESCRIPTION

API 594 Valve Design and Manufacture

AWWA C518 Face-to-Face Dimensions

ASME B16.34 Valves - Flanged, Threaded, and Welding End

ASME B16.42 Ductile Iron Pipe Flanges and Flanged Fittings

API 598 Valve Inspection and Pressure Test

TITAN

PREUR / 

Body Material Class 150 (2" ~ 24")

WOG (Non-shock): 250 PSI @ 100 °F

Ductile Iron Application Notes:

Ductile Iron maintains the anti-corrosive properties of Cast Iron while achieving a yield strength comparable to Carbon Steel. Ductile Iron also offers higher pressure/temperature ratings than Cast Iron.

Ductile Iron ASME Class 150 has the same bolting pattern as Cast Iron ASME Class 125.

Titan FCI makes every effort to ensure the information presented on our literature accurately reflects exact product specifications. However, as product changes occur, there may be short-term differences between actual product 

specifications and the information contained within our literature. Titan FCI reserves the right to make design and specification changes to improve our products without prior notification. When required, request certified drawings.

1. Dimensions and weights are for reference only. When required, request certified drawings.

2. Face to face values have a tolerance of ±0.06 in (±2.0 mm) for sizes 10" and lower and a tolerance 

of ±0.12 in (±3.0 mm) for sizes 12" and larger.

PRESSURE - TEMPERATURE RATINGS (1)

Temperature (°F)

Pressure (PSI)

-50 50 150 250 300 400 450 550 650

0

50

100

150

200

250

Ductile Iron ASTM A536

ANSI Class 150

250 °F Max Temp

Buna-N Seat

400 °F Max Temp

Viton Seat

450 °F Max Temp

SS Spring

300 °F Max Temp

EPDM Seats

1. The above chart displays the pressure-temperature ratings for the valve's body material per ASME 

 B16.42. Max temperature limits have been added for seat and spring materials.

Top View - Cutaway

6 2 ØC

ØE

ØD

ØB

A

DIMENSIONS AND PERFORMANCE DATA (1)

SIZE

in 2 2 1/2 3 4 5 6 8 10 12 14 16 18 20 24

mm 50 65 80 100 125 150 200 250 300 350 400 450 500 600

A DIMENSION FACE TO FACE (2)

in 2.12 2.38 2.62 2.62 3.25 3.75 5.00 5.50 7.12 7.25 7.50 8.00 8.38 8.75

mm 54 60 67 67 83 95 127 140 181 184 191 203 213 222

ØB DIMENSION OUTLET OUTSIDE DIAMETER

in 4.02 4.76 5.24 6.73 7.60 8.62 10.87 13.23 15.98 17.64 20.12 21.50 23.74 28.11

mm 102 121 133 171 193 219 276 336 406 448 511 546 603 714

ØC DIMENSION INLET INSIDE DIAMETER

in 2.17 2.92 3.45 4.12 5.67 6.43 8.56 10.43 12.21 14.17 16.13 17.32 20.10 23.66

mm 55 74 88 105 144 163 217 265 310 360 410 440 511 601

ØD DIMENSION OUTLET INSIDE DIAMETER

in 2.58 3.15 3.70 4.61 5.71 6.69 8.82 10.43 12.20 14.17 16.14 17.72 19.88 24.57

mm 66 80 94 117 145 170 224 265 310 360 410 450 505 624

ØE DIMENSION MINIMUM BORE DIAMETER

in 1.66 2.28 2.78 3.38 4.53 5.49 7.40 9.14 10.65 12.97 14.63 16.26 18.17 22.62

mm 42 58 71 86 115 140 188 232 271 330 372 413 462 575

ASSEMBLED

WEIGHT

lb 3.3 5.2 7.0 14.0 18.0 26.5 43.0 70.0 108.0 175.0 200.0 258.0 345.0 460.0

kg 1.5 2.4 3.2 6.4 8.2 12.0 19.5 31.7 48.9 79.4 90.7 117.0 156.5 208.7

Flow Coefficient Cv 62 110 175 350 550 850 1500 2400 3700 5400 8250 10400 14200 23000

Cracking Pressure (3) psi ≤ .25 ≤ .25 ≤ .25 ≤ .25 ≤ .25 ≤ .25 ≤ .25 ≤ .25 ≤ .25 ≤ .25 ≤ .25 ≤ .25 ≤ .25 ≤ .25

CV41A-0517

3. Cracking pressure is for horizontal installations only. For vertical installations, 

 please consult factory.

S

Seat Material Range Spring Material Max

EPDM: -30 ~ 300 °F SS ASTM A182 Gr. 316: 450 °F

BUNA-N: -20 ~ 250 °F

VITON: -40 ~ 400 °F

No. PART CV 41A-DI (3)

1 Body Ductile Iron ASTM A536

2 Seat(5) Buna-N/Viton/EPDM

3 Disc (2) Aluminum Bronze ASTM B148 /

Stainless Steel ASTM A351 Gr. CF8M

4 Spring (2) Stainless Steel ASTM A182 Gr. 316

5 Shaft/Stop Pin Stainless Steel ASTM A182 Gr. 316

6 Set Screw Galvanized Carbon Steel

7 Eye Bolt (4) Carbon Steel (Not Shown)

8 Seal Plug Buna-N/Viton/EPDM

BILL OF MATERIALS (1)

1. Bill of Materials represents standard materials.

Equivalent or better materials may be 

substituted at the manufacturer's discretion. 

2. Denotes recommended spare parts.

3. Ductile Iron bodies are NSF coated.

4. Eye Bolt is available on larger sizes only.
SILENT CHECK VALVE f GLOBE TYPE f CENTER GUIDED

ASME CLASS 300 f DUCTILE IRON f FLANGED ENDS RAISED FACE

CV52-0618

s d e s i g n e d f o r l o n g s e rv i c e l i f e

d u c t i l e i ro n b o dy m a i n ta i n s t h e a n t i- c o r ro s i v e p ro p e rt i e s o f c a s t 

i ro n w h i l e ac h i e v i n g a y i e l d s t r e n g t h c o m pa r a b l e to c a r b o n s t e e l .

d u c t i l e i ro n c h e c k va lv e s a l s o o f f e r h i g h e r p r e s s u r e a n d t e m p e r at u r e

r at i n g s w h e n c o m pa r e d to c a s t i ro n c h e c k va lv e s o f t h e s a m e c l a s s . 

s m i n i m a l h e a d l o s s

h e a d l o s s i s m i n i m i z e d b y t h e i n t e g r a l s t r a i g h t e n i n g va n e s t h at 

h e l p c r e at e l a m i n a r f l ow. a l a r g e c ro s s - s e c t i o n a l a r e a a l s o l e s s e n s

p r e s s u r e d ro p ac ro s s t h e c h e c k va lv e . u n l i k e t y p i c a l c o n i c a l s p r i n g 

c o n s t ru c t i o n s t h at r e s t r i c t f l ow, t h e n e w c v 52 h a s a c o m p r e s s i o n

s p r i n g c o u p l e d w i t h a s m a l l s t e m g u i d e t h at a l l ow s f o r a n

u n o b s t ru c t e d f l ow pat h. 

s q u i c k c l o s u r e to r e d u c e wat e r h a m m e r

s i l e n t s h u t- o f f i s ac h i e v e d v i a t h e f u l ly au to m at i c , s p r i n g a s s i s t e d 

d i s c t h at c l o s e s n e a r z e ro f l ow v e l o c i t y. t h e l i g h t w e i g h t, c e n t e r 

g u i d e d d i s c d e s i g n c r e at e s a p o s i t i v e s h u to f f p r i o r to f l ow r e v e r s a l 

a n d h e l p s to k e e p s l a m m i n g a n d s u r g e s to a m i n i m u m.

s m e ta l-to-m e ta l s e at s

p r e c i s i o n m ac h i n e d s e a l i n g s u r fac e s a l l ow t h e c v 52-d i to m a i n ta i n 

a t i g h t s e a l t h at m e e t s o r e x c e e d s a p i 598 l e a k ag e r e q u i r e m e n t s . 

 r e s i l i e n t s e at s a r e a l s o ava i l a b l e to p rov i d e b u b b l e t i g h t s e a l s *. 

 * 

s v e r s at i l e d e s i g n

t h i s va lv e c a n b e i n s ta l l e d i n a n y p o s i t i o n (h o r i z o n ta l o r v e rt i c a l

w i t h u p wa r d f l ow) *. c e rta i n s i z e s a l l ow d i r e c t m o u n t i n g o f a wa f e r 

 t y p e b u t t e r f ly va lv e to t h e o u t l e t e n d w i t h o u t r e q u i r i n g a s pac e

 f l a n g e o r s p o o l p i e c e . * RT

®

TITAN

TITAN FLOW CONTROL, INC.

FEATURES F

TECHNICAL T

1. The above listed temperatures are theoretical and 

may vary during actual operating conditions.

PRSUR

DCTLE IRO - 

WOG (Non-Shock): 640 PSI @ 100 °F 

S

T

ALUMINUM BRONZE: -460 ~ 600 °F 

STAINLESS STEEL: -325 ~ 1500 °F 

SPRING MATERIAL

MAXIMUM TEMPERATURE

STAINLESS STEEL: 450 °F

AAPPLICATIONS

Tel: 910-735-0000 s Fax: 910-738-3848 s titan@titanfci.com s www.titanfci.com

290 Corporate Drive s PO Box 7408 s Lumberton, NC 28358

YOUR PIPELINE TO THE FUTURE!

TITAN FLOW CONTROL, INC.

m a r k e t s: o i l a n d g a s p ro d u c t i o n, g e n e r a l i n d u s t ry, c h e m i c a l , p e t ro c h e m i c a l , p ow e r, f o o d a n d b e v e r ag e

s e rv i c e: p u m p d i s c h a r g e s e rv i c e i n m u n i c i pa l wat e r, i r r i g at i o n, a n d i n d u s t r i a l c l a s s h vac s ys t e m s . i t i s

r e c o m m e n d e d t h at a t i ta n f c i s t r a i n e r b e i n s ta l l e d a h e a d o f t h e p u m p to e n s u r e p rot e c t i o n o f t h e c h e c k

va lv e a n d t h e p u m p .

p r e c au t i o n s: t h i s va lv e i s i n t e n d e d f o r l i q u i d s e rv i c e t h at d o e s n ot e x c e e d 10 f t/s e c . i t i s d e s i g n e d f o r

s t e a dy f l ow c o n d i t i o n s a n d i s n ot r e c o m m e n d e d f o r u s e i n r e c i p ro c at i n g p u m p , c o m p r e s s o r o r ot h e r

t y p e o f p h ys i c a l /t h e r m a l s h o c k- l oa d a p p l i c at i o n s . t h i s va lv e i s n ot r e c o m m e n d e d f o r s t e a m s e rv i c e o r

f l ow m e d i a t h at c o n ta i n s s o l i d s . i t s h o u l d b e i n s ta l l e d at l e a s t f i v e p i p e d i a m e t e r s d ow n s t r e a m f ro m a n y

t u r b u l e n c e p ro d u c i n g c o m p o n e n t s . f l ow s t r a i g h t e n e r s m ay b e r e q u i r e d i n c e rta i n a p p l i c at i o n s . 

The above data represents common market and service applications. No representation or guarantee, expressed or implied, is given due to the numerous variations 

of concentrations, temperatures and flow conditions that may occur during actual service.

MODEL: CV 52-DI 

 Body: Ductile Iron

 Trim: Stainless Steel &

 Aluminum Bronze

SIZ RANGE: 

l a r g e r s i z e s ava i l a b l e

straighten

va

paten

d e s i g n w i t h i n t e g r a l
REFERENCED STANDARDS & CODES

CODE DESCRIPTION

ASME B16.42 Ductile Iron Pipe Flanges and Flanged Fittings

ASME B16.5 Pipe Flanges & Flanged Fittings

MSS SP-6 Standard Finishes for Connecting-end Flanges

MSS SP-25 Standard Marking System for Valves

MSS SP-55 Quality Standard for Valve Castings

BILL OF MATERIALS (1)

No. PART CV 52-DI-B CV 52-DI-S

1 Body Ductile Iron ASTM A536 Ductile Iron ASTM A536

2 Disc (2) Aluminum Bronze ASTM B148 Stainless Steel Gr. CF8M Type 316 SS

3 Spring (2) Series 300 Stainless Steel Series 300 Stainless Steel

4 Bushing (2) Bronze Stainless Steel

5 Seat (2) (3) Aluminum Bronze ASTM B148 Stainless Steel Gr. CF8M Type 316 SS

6 Cap Screw Stainless Steel Stainless Steel

7 Gasket (2) Non - Asbestos Gasket Non - Asbestos Gasket

PR

Pressure Class D.I. A536 CLASS 300

WOG (Non-Shock) 640 PSI @ 100 °F (1)

1. Ductile Iron check valves offer higher pressure ratings than Cast Iron check 

valves. For example, Ductile Iron check valves (2" ~ 24") are rated at 640 PSI 

WOG. By comparison, Cast Iron check valves (2" ~ 12") are rated at 

500 PSI WOG and (14" ~ 24") are only rated at 300 PSI WOG.

Titan FCI makes every effort to ensure the information presented on our literature accurately reflects exact product specifications. However, as product changes occur, there may be short-term differences between actual product 

specifications and the information contained within our literature. Titan FCI reserves the right to make design and specification changes to improve our products without prior notification. When required, request certified drawings.

T

SEAT Temperature

Aluminum Bronze -460 ~ 600 °F 

Stainless Steel -325 ~ 1500 °F 

MA

SPRING Max Temperature

Stainless Steel 450 °F

The listed pressure and temperature ratings for the valve's body, seat, and spring are 

theoretical and may vary during actual operating conditions.

O

Model Number Description

CV52-DI-B Ductile Iron Body, Aluminum Bronze Seat and Disc

CV52-DI-S Ductile Iron Body, Stainless Steel Seat and Disc

TITAN FLOW CONTROL, Inc.

290 Corporate Drive E-mail: titan@titanfci.com

Lumberton, NC 28358 Web: www.titanfci.com

Tel: 910.735.0000 Fax: 910.738.3848

ASME 

Class

250/300

SILENT CHECK VALVE • GLOBE TYPE 

CV 52-DI (Ductile Iron)

Flanged Ends Raised Face • Globe Style • Center Guided Disc

CV52-0618

®

TITAN

DIMENSIONS AND PERFORMANCE DATA (1)

SIZE

in 2 2 1/2 3 4 5 6 8 10 12 14 16 18 20 24

mm 50 65 80 100 125 150 200 250 300 350 400 450 500 600

A DIMENSION

FACE TO FACE

in 6.75 7.625 8.25 9.125 10.0 11.375 14.0 17.0 20.875 23.375 25.625 24.125 25.625 26.0

mm 172 194 210 232 254 289 356 432 531 594 651 613 651 661

ØB DIMENSION

FLANGE DIAMETER

in 6.5 7.5 8.25 10.0 11.0 12.5 15.0 17.5 20.5 23.0 25.5 28.0 30.5 36.0

mm 166 191 210 254 280 318 381 445 521 585 648 712 775 915

ØC DIMENSION

BELLY DIAMETER

in 4.875 5.75 6.625 8.875 10.375 11.5 15.0 17.875 22.125 24.25 26.875 30.0 33.25 37.0

mm 124 147 169 226 264 293 381 455 562 616 683 762 845 940

ASSEMBLED

WEIGHT

lb 21 30 39 64 93 125 198 303 432 612 1000 1238 1775 2500

kg 9.5 13.6 17.7 29.0 42.2 56.7 89.8 137.4 196.0 277.6 453.1 560.9 804.3 1132.8

Flow Coefficient Cv 65 105 150 265 410 600 1100 1800 2500 3100 4300 5000 6300 9800

Cracking Pressure (2) psi ≤ .5 ≤ .5 ≤ .5 ≤ .5 ≤ .5 ≤ .5 ≤ .5 ≤ .5 ≤ .5 ≤ .5 ≤ .5 ≤ .5 ≤ .5 ≤ .5

1. Dimensions, weights, and flow coefficients are provided for reference only. When required, always 

request certified drawings.

2. Cracking pressure is for horizontal installations only. For vertical installations, please consult 

factory.

1. Bill of Materials represents standard materials. Equivalent or better materials may be 

substituted at the manufacturer's discretion. 

2. Denotes recommended spare parts.

3. Resilient Seats are available upon request. Please call for details.

Additional Design & Technical Notes:

• The CV 52-DI is designed to fit Cast Iron Class 250 and Ductile Iron Class 300 Flanges. The 

bolting pattern for Cast Iron Class 250 and Ductile Iron Class 300 are identical.

• All valve bodies are epoxy painted.

1. This chart displays the pressure-temperature ratings for the valve's body per ASME B16.42-1998.

Max temperature limits have been added for seat and spring materials. 

PRESSURE-TEMPERATURE RATINGS (1)

Ductile Iron ASTM A536

ASME Class 300

Temperature (°F)

Pressure (PSI)

-50 50 150 250 350 450 550 650

100

200

300

400

500

600

700

450 °F Max Temp

SS Spring

This chart displays the pressure-temperature

ratings for the valve’s body material per

 ASME B16.42-1998.

600 °F Max Temp

Al. Bronze Seat

Illustrations are for 

representational purposes only. 

Please ask for certified drawings 

when necessary.

B Flange Diameter

A

Valve

Face-to-Face

(Includes Raised Face)

C Body Diameter

1

6

2

4

3 5

7

Stem Guide
SILENT CHECK VALVE f WAFER TYPE f CENTER GUIDED

ASME CLASS 150/300 (125/250) f DUCTILE IRON BODY

CV90-0616

s d e s i g n e d f o r l o n g s e rv i c e l i f e

n e w ly d e s i g n e d c v90' s h av e s t r a i g h t e n i n g va n e s t h at r e d u c e

t u r b u l e n c e i n i n c o m i n g f l ow, t h u s m i n i m i z i n g n o i s e , v i b r at i o n s ,

e ro s i o n, c av i tat i o n s , a n d ot h e r fac to r s t h at c o u l d r e s u lt i n

p r e m at u r e va lv e fa i l u r e . 

s m i n i m a l h e a d l o s s

h e a d l o s s i s m i n i m i z e d b y p rov i d i n g a l a r g e c ro s s - s e c t i o n a l a r e a 

w h i c h e x c e e d s t h at o f t h e a d j ac e n t p i p e l i n e . a d d i t i o n a l ly, t h e 

s p r i n g- l oa d e d, c e n t e r g u i d e d d i s c i s d e s i g n e d w i t h v e ry l ow 

c r ac k i n g p r e s s u r e w h i c h r e d u c e s t h e a m o u n t o f e n e r g y r e q u i r e d 

to o p e n t h e va lv e .

s q u i c k c l o s u r e to r e d u c e wat e r h a m m e r

s i l e n t s h u t- o f f i s ac h i e v e d v i a t h e f u l ly au to m at i c , s p r i n g a s s i s t e d 

d i s c t h at c l o s e s n e a r z e ro f l ow v e l o c i t y. t h e l i g h t w e i g h t, c e n t e r 

g u i d e d d i s c d e s i g n c r e at e s a p o s i t i v e s h u to f f p r i o r to f l ow r e v e r s a l 

a n d h e l p s to k e e p s l a m m i n g a n d s u r g e s to a m i n i m u m.

s r e s i l i e n t s o f t s e at s

s o f t s e at s ( b u n a & v i to n) c o m b i n e d w i t h p r e c i s i o n m ac h i n e d s e a l i n g 

s u r fac e s a l l ow t h e c v 90-d i to m a i n ta i n a b u b b l e s e a l t h at m e e t s 

a p i 598 l e a k ag e r e q u i r e m e n t s . m e ta l s e at s c a n a l s o b e f u r n i s h e d.

s v e r s at i l e d e s i g n

s i z e s 2" t h ro u g h 6" u t i l i z e a u n i q u e s c a l l o p d e s i g n t h at p e r m i t s d ua l 

p r e s s u r e s e rv i c e (a s m e c l a s s 150 a n d 300). s i z e s 8" t h ro u g h 12" a r e 

o n ly r at e d f o r a s m e c l a s s 150.

®

TITAN

TITAN FLOW CONTROL, INC.

FEATURES F

TECHNICAL T

1. The above listed temperatures are theoretical and 

may vary during actual operating conditions.

PRSUR

DCTLE IRO - 

WOG (Non-shock): 250 PSI @ 100 °F (2" ~ 12")

PRSUR

DCTLE IRO - 

WOG (Non-shock): 640 PSI @ 100 °F (2" ~ 6")

SAT MATERIAL 

T

BUNA-N: -20 ~ 250 °F 

VITON: -40 ~ 400 °F

SPRING MATERIAL (1)

MAXIMUM TEMPERATURE

STAINLESS STEEL: 450 °F

AAPPLICATIONS

Tel: 910-735-0000 s Fax: 910-738-3848 s titan@titanfci.com s www.titanfci.com

290 Corporate Drive s PO Box 7408 s Lumberton, NC 28358

YOUR PIPELINE TO THE FUTURE!

TITAN FLOW CONTROL, INC.

m a r k e t s: o i l a n d g a s p ro d u c t i o n, g e n e r a l i n d u s t ry, c h e m i c a l , p e t ro c h e m i c a l , p ow e r, f o o d a n d b e v e r ag e

s e rv i c e: p u m p d i s c h a r g e s e rv i c e i n m u n i c i pa l wat e r, i r r i g at i o n, a n d i n d u s t r i a l c l a s s h vac s ys t e m s . i t i s

r e c o m m e n d e d t h at a t i ta n f c i s t r a i n e r b e i n s ta l l e d a h e a d o f t h e p u m p to e n s u r e p rot e c t i o n o f t h e c h e c k

va lv e a n d t h e p u m p .

p r e c au t i o n s: t h i s va lv e i s i n t e n d e d f o r l i q u i d s e rv i c e t h at d o e s n ot e x c e e d 10 f t/s e c . i t i s d e s i g n e d f o r

s t e a dy f l ow c o n d i t i o n s a n d i s n ot r e c o m m e n d e d f o r u s e i n r e c i p ro c at i n g p u m p , c o m p r e s s o r o r ot h e r

t y p e o f p h ys i c a l /t h e r m a l s h o c k- l oa d a p p l i c at i o n s . t h i s va lv e i s n ot r e c o m m e n d e d f o r s t e a m s e rv i c e o r

f l ow m e d i a t h at c o n ta i n s s o l i d s . i t s h o u l d b e i n s ta l l e d at l e a s t f i v e p i p e d i a m e t e r s d ow n s t r e a m f ro m a n y

t u r b u l e n c e p ro d u c i n g c o m p o n e n t s . f l ow s t r a i g h t e n e r s m ay b e r e q u i r e d i n c e rta i n a p p l i c at i o n s . 

The above data represents common market and service applications. No representation or guarantee, expressed or implied, is given due to the numerous variations 

of concentrations, temperatures and flow conditions that may occur during actual service.

MODEL: CV 90-DI

 Body: Ductile Iron

 Trims: Stainless Steel

 or Bronze

 Seats: Buna and Viton

Size Range: 2" ~ 12"

Sizes 2" ~ 6" provide Dual 

Pressure Service 

ASME Class 150/300

straighten

va

paten

d e s i g n w i t h i n t e g r a l
Titan FCI makes every effort to ensure the information presented on our literature accurately reflects exact product specifications. However, as product changes occur, there may be short-term differences between actual product 

specifications and the information contained within our literature. Titan FCI reserves the right to make design and specification changes to improve our products without prior notification. When required, request certified drawings.

S AN

SEAT (O-Ring) Temperature Range

 Buna-N -20 °F @ 250 °F

Viton -40 °F ~ 400 °F 

SPRING Maximum Temperature

Stainless Steel 450 °F

1. The listed pressure and temperature ratings for the valve's body, seat, and spring are 

theoretical and may vary during actual operating conditions.

O

Model Number Description

CV90-DI-B-1 Ductile Iron Body, Bronze Seat and Disc, Buna-N Seat

CV90-DI-S-3 Ductile Iron Body, Stainless Steel Seat and Disc, Viton Seat

TITAN FLOW CONTROL, Inc.

290 Corporate Drive E-mail: titan@titanfci.com

Lumberton, NC 28358 Web: www.titanfci.com

Tel: 910.735.0000 Fax: 910.738.3848

ASME 

Class

150/300

(125/250)

SILENT CHECK VALVE • WAFER TYPE 

CENTER GUIDED DESIGN • DUCTILE IRON

MODEL: CV 90-DI - Ductile Iron Body

CV90-0616

®

TITAN

BILL OF MATERIALS (1)

No. PART CV 90-DI-B-1

1 Body (2) Ductile Iron ASTM A536

2 Seat (3) (4) Aluminum Bronze with Buna-N O-ring

3 Disc ASTM B148 Aluminum Bronze

4 Spring (4) Series 300 Stainless Steel

5 Bushing (4) Bronze ASTM B584 Aluminum Bronze 

6 Screws (4) ASTM A276 Type 304 Stainless Steel

No. PART CV 90-DI-S-3

1 Body (2) Ductile Iron ASTM A536

2 Seat (3) (4) Stainless Steel with Viton O-ring

3 Disc ASTM A351 Gr. CF8M Type 316 Stainless Steel

4 Spring (4) Series 300 Stainless Steel

5 Bushing (4) ASTM A351 Gr. CF8M Type 316 Stainless Steel

6 Screws (4) ASTM A276 Type 304 Stainless Steel

1. Dimensions, weights, and flow coefficients are provided for reference only. When required, always request certified drawings.

2. Sizes 8", 10" and 12" are not scalloped, but tapping for cap screws is provided. Contact factory for diameter dimension if needed.

3. Cracking pressure is for horizontal installations only. For vertical installations, please consult factory.

DIMENSIONS AND PERFORMANCE DATA (1)

SIZE

in 2 2 1/2 3 4 5 6 8 (2) 10 (2) 12 (2)

mm 50 65 80 100 125 150 200 250 300

A DIMENSION FACE TO FACE

in 2.62 2.87 3.12 4.0 4.62 5.62 6.50 8.25 11.25

mm 67 73 79 102 117 143 165 210 286

ØB DIMENSION

SCALLOP DIAMETER 150 lb

(2" THROUGH 12")

in 4.0 4.75 5.25 6.75 7.62 8.62 n/a n/a n/a

mm 102 121 133 171 194 219 276 n/a n/a

ØC DIMENSION

OUTSIDE DIAMETER 300 lb

(2" THROUGH 6")

in 4.25 5.0 5.75 7.0 8.37 9.75 n/a n/a n/a

mm 108 127 146 178 213 248 n/a n/a n/a

ASSEMBLED

WEIGHT

lb 4.5 7.0 9.5 17.5 25.5 38.0 88.0 162.0 300.5

kg 2.0 3.2 4.3 7.9 11.6 17.2 39.9 73.4 136.2

Flow Coefficient Cv 60 95 150 230 310 450 750 1250 1800

Cracking Pressure (3) psi ≤ .5 ≤ .5 ≤ .5 ≤ .5 ≤ .5 ≤ .5 ≤ .5 ≤ .5 ≤ .5

1. BOM represents standard materials. 

Equivalent or better materials may be 

substituted at the manufacturer's discretion.

2. Bodies are epoxy painted.

3. Metal seats also available.

4. Denotes recommended spare parts.

Additional Design & Technical Notes:

Sizes 2" through 6" utilize a unique scallop design that 

permits dual pressure service (150/300 lb). These sizes 

fit properly between any Cast Iron ASME Class 125/250 

or Ductile Iron ASME Class 150/300 flanges. Sizes 8" 

through 12" are only rated for ASME Class 150 service. 

The bolting pattern for Cast Iron Class 125/250 and 

Ductile Iron Class 150/300 are the same, respectively.

Ductile Iron check valves offer higher pressure ratings 

than Cast Iron check valves. For example, Ductile Iron 

check valves (2" ~ 24") are rated at 640 psi wog where 

as Cast Iron check valves (2" ~ 12") are rated at 500 psi 

wog and (14" ~ 24") are only rated at 300 psi wog.

REFERENCED STANDARDS & CODES

CODE DESCRIPTION

ASME B16.42 Ductile Iron Pipe Flanges and Flanged Fittings

ASME B16.5 Pipe Flanges and Flanged Fittings

MSS SP-6 Standards Finishes for Connecting-end Flanges

MSS SP-25 Standard Marking System for Valves

MSS SP-125 D.I., In-Line, Spring Loaded, Center-Guided Valves

FM APPROVALS CLASS 1230 Anti-Water Hammer Check Valves (2" ~12")

PRSUR

ASME Class 150 lb Service 

2" ~ 12"

300 lb Service

2" ~ 6" only

WOG (Non-shock) 250 PSI @ 100 °F 640 PSI @ 100 °F 

1. This chart displays the pressure-temperature ratings for the valve's body per ASME B16.42-1998.

Maximum temperature limits have been added for seat and spring materials. 

PRESSURE-TEMPERATURE RATINGS (1)

Ductile Iron

A536 ASME Class 150

Sizes: 2” ~ 12”

Ductile Iron

A536 ASME Class 300

Sizes: 2” ~ 6” Only

Temperature (°F)

Pressure (PSI)

Source: ASME B16.42-1998

-50 50 150 250 350 450 550 650

100

200

300

400

500

600

700

450 °F Max Temp

SS Spring

600 °F Max Temp

Al. Bronze Disc

250 °F Max Temp

Buna-N Seat

400 °F Max Temp

Viton Seat

ØB

Class 150

Scallop Diameter

1

5

4

3

2

6

Side View

Exploded View

Illustration is representative of sizes 2" - 6".

Face-to-Face

ØC

Class 300

Outside

Diameter

A
SWING CHECK VALVE f WAFER TYPE f SINGLE DISC

ASME CLASS 125/150 f DUCTILE IRON

CV31-0218

TECHNICAL T

TITAN

TITAN FLOW CONTROL, INC.

FEATURES F

Tel: 910-735-0000 s Fax: 910-738-3848 s titan@titanfci.com s www.titanfci.com

YOUR PIPELINE TO THE FUTURE!

TITAN FLOW CONTROL, INC.

1. Ductile Iron valves offer higher pressure ratings 

than Cast Iron. valves For example, Ductile Iron 

valves (2" ~ 24") are rated at 250 psi wog. By 

comparison, Cast Iron valves (2" ~ 12") are rated at 

200 psi wog and (14" ~ 24") are only rated at 150 

psi wog. 

m a r k e t s: g e n e r a l i n d u s t ry, c h e m i c a l , p e t ro c h e m i c a l , p ow e r, a n d f o o d & b e v e r ag e

s e rv i c e: i n t e n d e d f o r l i q u i d s e rv i c e t h at i s s t e a dy, c l e a n (n o a b r a s i v e s o r s o l i d s ) a n d n o n- p u l s at i n g. 

f l ow r at e s h o u l d n ot e x c e e d 15 f t/s e c . n ot r e c o m m e n d e d f o r s t e a m o r r e c i p ro c at i n g c o m p r e s s o r s e rv i c e .

bu n a- n p ro p e rt i e s: m o s t w i d e ly u s e d e l a s to m e r. g o o d f o r m o s t p e t ro l e u m o i l s a n d f l u i d s , s i l i c o n e

g r e a s e s a n d o i l s , a n d c o l d wat e r. e x c e l l e n t c o m p r e s s i o n s e t, t e a r, a n d a b r a s i o n r e s i s ta n c e . p o o r

w e at h e r r e s i s ta n c e a n d m o d e r at e h e at r e s i s ta n c e . n ot r e c o m m e n d e d f o r s e v e r e o z o n e -r e s i s ta n t

a p p l i c at i o n s . 

The above data represents common market and service applications. No representation or guarantee, expressed or implied, is given due to the numerous 

variations of concentrations, temperatures and flow conditions that may occur during actual service.

s e c o n o m i c a l d e s i g n

l ow w e i g h t a n d s h o rt l ay i n g l e n g t h p ro d u c e s av i n g s i n i n i t i a l c o s t, 

s pac e r e q u i r e m e n t s , a n d i n s ta l l at i o n w h e n c o m pa r e d to f u l l - b o dy, 

s w i n g-t y p e c h e c k va lv e s .

s m i n i m a l h e a d l o s s

h e a d l o s s i s m i n i m i z e d b y p rov i d i n g a s h o rt, s t r a i g h t a n d v i rt ua l ly 

u n o b s t ru c t e d f l ow pat h. a d d i t i o n a l ly, t h e s p r i n g- l oa d e d d i s c i s 

d e s i g n e d w i t h v e ry l ow c r ac k i n g p r e s s u r e w h i c h r e d u c e s t h e a m o u n t 

o f e n e r g y r e q u i r e d to o p e n t h e va lv e .

s q u i c k c l o s u r e to r e d u c e wat e r h a m m e r

s h u t- o f f i s ac h i e v e d v i a t h e f u l ly au to m at i c , s p r i n g-a s s i s t e d d i s c t h at 

c l o s e s n e a r z e ro f l ow v e l o c i t y. t h e l i g h t w e i g h t, s i n g l e d i s c d e s i g n 

c r e at e s a p o s i t i v e s h u to f f p r i o r to f l ow r e v e r s a l w h i c h h e l p s to k e e p 

s u r g e s to a m i n i m u m.

s d u r a b l e, h i g h q ua l i t y d e s i g n

t h e c v31' s d u c t i l e i ro n b o dy m a i n ta i n s t h e a n t i- c o r ro s i v e p ro p e rt i e s 

o f c a s t i ro n w h i l e ac h i e v i n g a y i e l d s t r e n g t h c o m pa r a b l e to c a r b o n 

s t e e l . d u c t i l e i ro n a l s o o f f e r s h i g h e r p r e s s u r e /t e m p e r at u r e r at i n g s 

t h a n c a s t i ro n i n t h e s a m e p r e s s u r e c l a s s . t h e c v31 a l s o f e at u r e s 

a n t i- c o r ro s i v e , s ta i n l e s s s t e e l t r i m (d i s c , s p r i n g, s h a f t) a s s ta n da r d. 

s r e s i l i e n t s o f t s e at s

f i e l d r e p l ac e a b l e , r e s i l i e n t s o f t s e at s (b u n a-n o -r i n g) c o u p l e d w i t h 

p r e c i s i o n m ac h i n e d s e a l i n g s u r fac e s h e l p to e n s u r e a b u b b l e t i g h t s e a l

t h at m e e t s o r e x c e e d s a p i 598 t e s t r e q u i r e m e n t s .

AAPPLICATIONS

PR

DI  ASTM 536 - C

WOG (Non-shock): 250 PSI @ 100 °F

S

T

BUNA-N: -20 ~ 250 °F 

SPRING MATERIAL

MAXIMUM TEMPERATURE

Series 300 Stainless Steel: 450 °F

MODEL: CV 31-DI 

 Body: Ductile Iron

 Seat: Buna-N

 Disc: Stainless Steel

SIZES: 2" ~ 12"

NEWLY 

 DESIGNED...

Face to face meets

API 594.
TITAN FLOW CONTROL, Inc.

290 Corporate Drive E-mail: titan@titanfci.com

Lumberton, NC 28358 Web: www.titanfci.com

Tel: 910.735.0000

Fax: 910.738.3848

ASME 

Class

125/150

SWING CHECK VALVE • WAFER TYPE • SINGLE DISC

MODEL: CV 31-DI (Ductile Iron Body)

Buna-N Seat • Stainless Steel Disc

REFERENCED STANDARDS & CODES

CODE DESCRIPTION

ASME B16.42 Ductile Iron Pipe Flanges and Flanged Fittings

ASME B16.5 Pipe Flanges & Flanged Fittings

API 594 Wafer, Wafer-Lug, & Double Flanged Type Check Valve

API 598 Valve Inspection and Testing

MSS SP-6 Standard Finishes for Connecting-end Flanges

MSS SP-25 Standard Marking System for Valves

MSS SP-55 Quality Standard for Valve Castings

CV31-0218

BILL OF MATERIALS (1)

No. PART CV 31-DI

1 Body Ductile Iron ASTM A536

2 Seat Buna-N O-Ring

3 Disc (2) Stainless Steel AISI 316

4 Plug Carbon Steel ASTM A307B

5 Spring (2) Series 300 Stainless Steel

6 Spacer PTFE Commercial

7 Shaft Stainless Steel AISI 316

8 Eye Bolt Carbon Steel ASTM A307B

1. Bill of Materials represents standard materials. Equivalent or better 

materials may be substituted at the manufacturer's discretion. 

	 All materials conform to ASTM specifications.

2. Denotes recommended spare parts.

TITAN

PRSUR

Pressure Class Ductile Iron A536 Class 150

WOG (Non-shock) 250 PSI @ 100 °F

PRESSURE-TEMPERATURE RATINGS

Temperature (°F)

Pressure (PSI)

-50 50 150 250 350 450 550 650

0

50

100

150

200

250

This chart displays the pressure versus

temperature ratings for the valve’s body

material per ASME B16.42.

Max temp limits have been added for

Ductile Iron ASTM A536 seat and spring materials.

ASME Class 150

450 °F Max Temp

SS Spring

250 °F Max Temp

Buna-N Seat

Titan FCI makes every effort to ensure the information presented on our literature accurately reflects exact product specifications. However, as product changes occur, there may be short-term differences between actual product 

specifications and the information contained within our literature. Titan FCI reserves the right to make design and specification changes to improve our products without prior notification. When required, request certified drawings.

DIMENSIONS AND PERFORMANCE DATA (1)

SIZE

in 2 2 1/2 3 4 5 6 8 10 12

mm 50 65 80 100 125 150 200 250 300

A DIMENSION FACE TO FACE (2)

in 2.12(4) 2.38(4) 2.62(4) 2.62(4) 3.25(4) 3.75(4) 5.0(4) 5.5(4) 7.12(4)

mm 54 61 67 67 83 95 127 140 181

ØB DIMENSION OVERALL DIAMETER

in 4.00 4.88 5.25 6.88 7.75 8.75 11.00 13.38 16.13

mm 102 124 133 175 197 223 280 340 410

ØC DIMENSION INLET DIAMETER

in 1.31 1.85 2.06 3.00 3.75 4.75 6.44 7.63 9.50

mm 34 47 53 77 96 121 164 194 242

D DIMENSION

DISC MAX TRAVEL

in 0.75 1.00 0.80 1.87 3.30 2.70 3.00 4.62 4.00

mm 19 25.5 20.3 47.5 83.8 68.6 76 117 102

ASSEMBLED

WEIGHT

lb 4.25 7.25 8.75 13.25 18.5 32 50 80 126

kg 1.9 3.3 4 6 8.4 14.5 22.7 36.2 57.1

Flow Coefficient Cv 62 109 166 318 471 720 1384 2298 4153

Cracking Pressure (3) psi ≤ .25 ≤ .25 ≤ .25 ≤ .25 ≤ .25 ≤ .25 ≤ .25 ≤ .25 ≤ .25

1.	 Dimensions, weights, and flow coefficients are for reference only. When required,request certified drawing

2. Face to face values have a tolerance of ±0.06 in (±2.0 mm) for sizes 10" and lower and a tolerance of ±0.12 in (±3.0 mm) for sizes 12" and larger.

3. Cracking pressure is for horizontal installations only. For vertical installations, please consult factory.

4. Face to face dimensions per API 594 Class 125.

Ductile Iron Application Notes: Ductile Iron maintains the anti-corrosive properties of Cast Iron 

while achieving a yield strength comparable to Carbon Steel. Ductile Iron also offers higher pressure/

temperature ratings than Cast Iron. For example, Ductile Iron check valves (class 150 - sizes 2" ~ 24") 

are rated at 250 psi wog. By comparison, Cast Iron check valves (class 125 - sizes 2" ~ 12") are rated 

at 200 psi wog and (sizes 14" ~ 24") are only rated at 150 psi wog. Ductile Iron ANSI Classes 150 has 

the same bolting pattern as Cast Iron ANSI Class 125.

S AN

SEAT (O-Ring) Temperature Range

Buna-N -20 °F @ 250 °F

SPRING Maximum Temperature

Series 300 Stainless Steel 450 °F

1. The listed pressure and temperature ratings for the valve's body, seat, and 

spring are theoretical and may vary during actual operating conditions.

2

1

3

5 7

4 6

8

A D

ØB

ØC

Exploded View

Side View

(shown with disc open)

Illustrations are 

representative of the 

CV 31-DI. Please 

request certified 

drawings when required.