T 8111 EN
Series V2001 Valves · Type 3321 Globe Valve with electropneumatic,pneumatic or electric actuators
DIN version

Application
Control valves designed for mechanical and plant engineering. Suitable for liquids, gases and steam
Nominal size
Pressure rating
Temperature range

DN 15 to 100
PN 16 to 40–10 to +300 °C

Type 3321 Globe Valves can be equipped with either electropneumatic, pneumatic or electric actuators:• Electropneumatic actuators with integrated or mounted i/p
positioner (Type 3321-IP Control Valve)• Pneumatic actuators (Type 3321-PP Control Valve)• Electric actuators (Type 3321-E1 or Type 3321-E3 ControlValve)
Valve body materials• Cast iron for PN 16• Spheroidal graphite iron for PN 25• Cast steel for PN 40 (up to DN 50) and PN 16 and 40(DN 65 and larger)• Stainless steel for PN 40 (up to DN 50) and PN 16(DN 65 and larger)

Fig. 1: Type 3321-IP

Fig. 2: Type 3321-PP

Fig. 3: Type 3321-IP, up to
DN 50, with Type 3725
Positioner

Fig. 4: Type 3321-IP, DN 65
and larger, withType 3725 Positioner

Fig. 5: Type 3321-E1

Fig. 6: Type 3321-E3

Nominal sizes DN 15 to 100 each with two KVS coefficients
Metal or soft-seated valve plug
The control valves can optionally be equipped with positioners, limit switches or contacts and resistance transmitters.
Versions–

Type 3321-IP Electropneumatic Globe Valve · With
Type 3372 Electropneumatic Actuator, optionally withintegrated positioner (120 cm² only, with plug connector,see Fig. 1) or Type 3725 Positioner (Fig. 3, Fig. 4), tightclosing function for completely venting or filling theactuator with air, 4 to 20 mA reference variable, max.
6 bar supply air, fail-close or fail-open, optionally withlimit switch–

Type 3321-PP Pneumatic Globe Valve (Fig. 2) · With
Type 3371 Pneumatic Actuator with 120 cm² (DN 15 to50) or Type 3371 with 350 cm² (DN 65 to 100), fail-closeor fail-open, optionally with limit switch–

Type 3321-E1 Electric Globe Valve (Fig. 5) · Nominal size
DN 15 to 50, with Type 5827-N3 Electric Actuator for
230 V/50 Hz or 24 V/50 Hz, optionally with limit contacts, resistance transmitters, positioner

SAMSON AKTIENGESELLSCHAFT · Weismüllerstraße 3 · 60314 Frankfurt am Main, Germany
Phone: +49 69 4009-0 · Fax: +49 69 4009-1507 · samson@samsongroup.com · www.samsongroup.com

Edition June 2024

–Type 3321-E3 Electric Globe Valve (Fig. 6) · With
Type 3374 Electric Actuator for 230 V/50 Hz,
230 V/60 Hz, 24 V/50 Hz or 24 V/60 Hz, optionallywith fail-safe action (tested according to DIN EN 14597
with actuator stem extends), limit contacts, resistancetransmitter, positioner

Further versions––––

Explosion-protected version with electric actuators · On
requestType 3321 according to ANSI standards · See Data Sheetu T 8112Insulating section
Flow divider ST 1 for noise reduction

Crossbeam

Principle of operation
The process medium flows through the valve in the direction
indicated by the arrow in the flow-to-open direction (Fig. 7,Fig. 8). The valve plug position determines the cross-sectional
area between the seat and plug. The plug stem is connected tothe actuator stem by the stem connector and sealed with aself-adjusting packing.
Fail-safe position
The control valve has two different fail-safe positions that become effective when the supply air fails:–Actuator stem extends (fail-close): The valve closes when
the supply air fails.

–Actuator stem retracts (fail-open): The valve opens when
the supply air fails.

Fig. 7: Type 3321 Globe Valve, DN 15 to 50

Fig. 8: Type 3321 Globe Valve, DN 65 to 100

Fig. 9: Type 3321-IP Globe Valve, DN 15 to 50,
actuator with integrated electropneumatic positioner

2T 8111 EN

Associated documentation
Valve and actuator are delivered separately. Instructions on
how to mount the valve on the actuator can be found in themounting and operating instructions delivered with the product:u EB 8111u EB 8313-1 andu EB 8313-3

Actuator for Type 3321-IP

u EB 8317

Actuator for Type 3321-PP

u EB 5827-1

Actuator for Type 3321-E1

u EB 5827-2

Type 3321 Globe Valveu EB 8331-1

Actuator for Type 3321-E3

u EB 8331-4
Table 1: Type 3321 Globe Valve
Table 1.1: Technical data
Material
Connection

Flanges

Cast iron ·EN-GJL-250

Spheroidal
graphite iron ·EN-GJS-400-18-LT

Cast steel · 1.0619

Stainless steel · 1.4408

According to
DIN EN 1092‑2

According toDIN EN 1092‑2

According to DIN EN 1092-1

According to DIN EN 1092-1Nominal size

DN

15 to 100

15 to 100

15 to 50

65 to 100

15 to 50

65 to 100

Pressure rating

PN

16254016 · 40

40

16Seat-plug seal

Metal or soft sealing

Characteristic

Inherent characteristic according to u T 8000-3

Rangeability

50:1 for DN 15 to 50
30:1 for DN 65 to 100

Medium temperature range–10 to +220 °C

With insulating section–10 to +300 °C

1)Leakage class according toIEC 60534‑4

Metal seal: IV
Soft seal: VI

Conformity
1)

Not in stainless steel with DN 65 to 100

Table 1.2: Materials · (previous material designation written in parentheses)
Nominalsize

DN

15 · 20 · 25 · 32 · 40 · 50 · 65 · 80 · 100

Valve body

Cast iron · EN-GJL-250

Spheroidal graphite iron ·EN-GJS-400-18-LT

Cast steel · 1.0619

Stainless steel · 1.4408

Valve bonnet

Up to DN 50: 1.0460
DN 65 and larger:
EN-GJL-250

Up to DN 50: 1.0460
DN 65 and larger:
EN-GJL-250

Up to DN 50: 1.0460
DN 65 and larger:
1.0619Up to DN 50: 1.4401
DN 65 and larger:
1.4408

Valve flange 1)

1.0460Seat

Seat andplug

Plug

1.4401·1.4404 2)

Seal for soft-seated plug

PTFE

Guide bushing

1.4104

Packing2)

1.4404

V-ring packing: PTFE with carbon; spring: 1.4310

Body gasket
1)

DN 15 to 50: 1.4401 ·1.4404 2)
DN 65 and larger: in thevalve body

DN 15 to 50: 1.4104
DN 65 and larger: 1.4006

Graphite on metal core

No contact with process medium; only up to DN 50. For DN 65 and larger: one-pieced (see valve bonnet for material)
Material double stamping

Table 1.3: Nominal sizes, KVS coefficients and seat diameters
Nominal size

DNKVS

150.25 0.63 1.6

KVS1 1)–Seat ØmmRated travelmm1)

2036253240506580

10042.5

6.3

4

106.3

161025163540

100

40

100

40

160

1.45 3.6

2.25.7

3.6

95.7 14.5

922

14.5

313690

3690

36

144

1212241224242438

32

48

4880

4880

48

32158030With flow divider ST 1

T 8111 EN

3

Table 2: Pneumatic actuators
Table 2.1: Technical data
Valve/actuator

Type 3321-IP/Type 3372

Actuator area

350 cm² for
KVS 40 and100

350 cm² for
KVS 160

120 cm²

Type 3321-PP/Type 3371

Fail-safe positionFail-close or fail-openReference variable
Bench range/rated
travel350 cm² for
KVS 40 and100

350 cm² for
KVS 160

120 cm²4 to 20 mA–

Fail-close

2.1 to2.2 to2.1 to2.1 to2.2 to2.1 to3.3 bar/15 mm 3.8 bar/30 mm 2.7 bar/15 mm 3.3 bar/15 mm 3.8 bar/30 mm 2.7 bar/15 mm

Fail-open

0.4 to
1.5 to
1.5 to0.4 to
1.5 to
1.5 to1.4 bar/15 mm 2.7 bar/30 mm 2.1 bar/15 mm 1.4 bar/15 mm 2.7 bar/30 mm 2.1 bar/15 mm

Hysteresis
Variable position
Degree of protection
Permissible ambient temperature

≤1 %–

≤7 %

–

IP54 with integrated positioner (only for 120 cm²)
IP66 with Type 3725

–Standard: –20 to +80 °C
With metal cable gland: –30 to +80 °C–35 to +90 °C

u T 8313

u T 8317

Actuator data

Table 2.2: Materials
Actuator

Type 3372

Type 3371

Actuator area

120 cm²

350 cm²

120 cm²

350 cm²

Actuator housing

GD-AlSi121.0330GD-AlSi121.03301.43051.45711.4305POM-GF–

Diaphragm

NBR

Actuator stem

NBR
1.4571

Positioner housing
Integrated version
Type 3725–Polyphthalamide (PPA)

–

Yoke
Stem

9SMn28K

1.0715+C

9SMn28K

1.0715+C

Crossbeam

1.4301–1.4301–

Mounting bracket forType 3725

Aluminum–

Table 2.3: Permissible differential pressures for metal-seated plug · · Fail-close · All pressures in bar
Actuator area

cm²120Bench rangebar

2.1 to 3.3

2.1 to 2.7

2.2 to 3.8

Valve travel

mm151530

Supply pressurebar

3.7 to 6.0

KVS coefficients1)

4350

4.3 to 6.0
Δp when p2 = 0 bar

0.25 · 0.63 · 1.6 · 2.5 · 4.040––6.3 · 1040––

1625––

25

17––

35

11––40101)

34–

10031)

10–160––10

Mounting without crossbeam on actuator (form C attachment), see u EB 8313-3 and u EB 8317

T 8111 EN

Table 2.4: Permissible differential pressures for metal-seated plug · · Fail-open · All pressures in bar
Actuator area

cm²120350

Bench rangebar

0.4 to 1.4

1.5 to 2.1

1.5 to 2.7

1.5 to 2.1

1.5 to 2.7

Valve travelmm151530

1530

Supply pressurebar

2.5

3.5

4.4

KVS coefficients
0.25 · 0.63 · 1.6 · 2.5 · 4.01)

4.0

6.0

Δp when p2 = 0 bar
40

4040

––––

6.3 · 10224040

––––

16

1125

34––––

25

81724––––35

4.5

1015––––40

4 1)

9 1)

15 1)

27–40

–100

–31)

4.5

9.5

–

22–

160

––––

9.5

–

221)

Mounting without crossbeam on actuator (form C attachment), see u EB 8313-3 and u EB 8317

Table 2.5: Permissible differential pressures for soft-seated plug · Fail-close · All pressures in barActuator area

cm²120350

Bench rangebar

2.1 to 3.3

2.1 to 2.7

2.2 to 3.8

Valve travel

mm151530

Supply pressurebar

3.7 to 6.0

4.3 to 6.0

KVS coefficients1)

Δp when p2 = 0 bar

0.25 · 0.63 · 1.6 · 2.5 · 4.0

40––

6.3 · 1040––

1627––

25

19––

35

12––4010 1)

36–1003 1)

10–

Mounting without crossbeam on actuator (form C attachment), see u EB 8313-3 and u EB 8317

Table 2.6: Permissible differential pressures for soft-seated plug · Fail-open · All pressures in bar
Actuator area

cm²120350

Bench rangebar

0.4 to 1.4

1.5 to 2.1

1.5 to 2.7

1.5 to 2.1

1.5 to 2.7

Valve travelmm

1515301530

Supply pressurebar

2.5

3.5

4.4

0.25 · 0.63 · 1.6 · 2.5 · 4.0

40

40

40

–

––

–

6.3 · 10

2540

40

–

–

–

–

KVS coefficients1)

4.0

6.0

Δp when p2 = 0 bar

16142736

–

–

–

–

25

9.5

1926

–

–

–

–

35

61216––––

40

4.510151)

29–

40

–

100

–5.5 1)

10–23–1)

1)

3 1)

Mounting without crossbeam on actuator (form C attachment), see u EB 8313-3 and u EB 8317

T 8111 EN5

Table 3: Electric actuators
Table 3.1: Permissible differential pressures for metal-seated plug · All pressures in bar
Globe valve

Type3321-E1

With actuator

Type5827-N3

3321-E33374-10/-11

3374-21/-31

3374-10/-11

0.7 kN

1.25 kN

Stem extends: 2.0 kN
Stem retracts: 0.5 kN

2.5 kN

0.25 · 0.63 · 1.6 · 2.5 · 4.040404040

6.3 · 109183240164.59172525361217Thrust
KVS coefficients35

1.5371040–

37.5

10100––23160 1)–––3 2)

Actuator data1)
2)

Δp when p2 = 0 bar

See Data Sheetu T 5827

u T 8331

With 30 mm travel
Only with Type 3374-10

Table 3.2: Permissible differential pressures for soft-seated plug · All pressures in bar
Globe valve

Type3321-E1

With actuator

Type5827-N3

3374-10/-113374-21/-31

3374-10/-11

0.7 kN

1.25 kN

Stem extends: 2.0 kN
Stem retracts: 0.5 kN

2.5 kN404040

6.3 · 1012163240166.59172725

4.561219353

471240–3910100––

34Thrust

3321-E3

KVS coefficients

Δp when p2 = 0 bar

0.25 · 0.63 · 1.6 · 2.5 · 4.0

Actuator data

See Data Sheetu T 5827

40u T 8331

Table 4: Type of attachment and required adapter
Type 3321 Valve

DN 15 to 50

DN 65 to 100

Type 3372 Actuator with connector (Fig. 1)

IP

Mounting with crossbeam(form B)–

Type 3372 Actuator with Type 3725 Positioner (Fig. 3,Fig. 4)

IPMounting with crossbeam(form B)

Mounting without crossbeam(form C)

E1

With adapter (1400-7414)–

Type 3374-11/-21/-31 Actuator (Fig. 6)

E3

Mounting with crossbeam(form B)

With adapter (1400-9515)

Type 3374-10 Actuator

E3–

With adapter (1400-9515)

Type 3371 Actuator (Fig. 2)

PP

Mounting with crossbeam(form B)

Mounting without crossbeam(form C)Type 5827-N3 Actuator (Fig. 5)

6

Version:T 8111 EN

Table 5: Dimensions and weights for Type 3321 Valve
Valve

DN

152025324050

65

80100

Lmm

130150160

180200230

290

310

350

H1mm110110110115115115

178

178

201

H2mm

4040407272729898

118

H4 (with insulatingsection)

mm

261

261

261265

265

265

325

325

325

Weightkg

567111215243042

Weight (with insulatingsection)

kg

891017182132

38

60

H2L

Type 3321: DN 15 to 50

T 8111 EN

H4

H2

H1

H1

50

H450

Dimensional drawing of valve

L

Type 3321: DN 65 to 100

Type 3321 with insulating section

7

Table 6: Dimensions and weights for Type 3372 Electropneumatic Actuator
Positioner

IntegratedActuator area

cm²

Fail-safe position 1)

Type 3725120120

Stem extends

Stem retracts

120350
Stem extends/retracts

Height Hmm

236

309

182

231

ØD

mm

168

168

168

280

Weight (withoutpositioner)

kg

3.7

3.7

3.3

15

Dimension diagrams for electropneumatic control valves
ØDHH

ØD

ØD
ØD

PG 11HH

PG 11Type 3372 Electropneumatic
Actuator (120 cm²) withType 3725 Positioner,
stem extends/retracts
X 1)

Type 3372 Electropneumatic
Actuator (350 cm²) withType 3725 Positioner,
stem extends/retracts
ØD90

HH

ØD

Type 3321-IP ·Valve DN 15 to 50 withType 3372 Electropneumatic
Actuator with integratedpositioner, stem extends1)

8

Type 3321-IP ·Valve DN 15 to 50 withType 3372 Electropneumatic
Actuator with integrated
positioner, stem retracts

Type 3372 ElectropneumaticActuator (120 cm²) with
Series 3730 Positioner,
stem extends/retracts

Type 3372 Electropneumatic
Actuator (350 cm²) with
Series 3730 Positioner,
stem extends/retracts

The dimension X depends on the cable gland used.

T 8111 EN

Table 7: Dimensions and weights for Type 3371 Pneumatic Actuator
Actuator area

cm²

Fail-safe position

120350

Stem extends/retracts

Stem extends/retracts

Height Hmm

182231

ØD

mm

168

280

Weightkg

3.3

15Dimension diagrams for pneumatic control valvesØDHHØD

Type 3321-PP ·Valve DN 15 to 50 with Type 3371 Pneumatic Actuator(120 cm²), stem extends/retracts

Type 3321-PP ·Valve DN 65 to 100 with Type 3371 Pneumatic Actuator(350 cm²), stem extends/retracts

Table 8: Dimensions and weights for Type 5827 and Type 3374 Electric Actuators
Type5827

3374

Height H

mm

206294Weight (max.)

kg

1.25

4

Dimension diagrams for electric control valves
193x12060

HH154

Type 3321-E1 ·Valve with Type 5827 Electric Actuator

T 8111 EN

Type 3321-E3 ·Valve with Type 3374 Electric Actuator

9Ordering text
The following specifications are required on ordering:Type 3321 Globe ValveActuators

Nominal size

DN …

Flow coefficients

KVS …

for Type 3321-IP: Type 3372 Electropneumatic Actuator

Pressure rating

PN …

Body material

Cast iron, spheroidal graphite iron,cast steel, or stainless steel

Seat-plug seal––

Metal seal
Soft seal

Options––

Flow divider ST 1
Insulating section

120 cm² actuator area:– with integrated positioner, 4 to 20 mA– with Type 3725/Series 3730 Positioner
350 cm² actuator area:– with Type 3725/Series 3730 Positioner
Optional

Intrinsically safe EEx ia

Additional equipment 1 or 2 limit switches
for Type 3321-PP: Type 3371 Pneumatic Actuator
Fail-safe position

Fail-close or fail-open

Bench range

1.4 to 2.3 bar

Additional equipment 1 or 2 limit switches
For Type 3321-E1: Type 5827-N3 Electric Actuator
Supply voltage––

Additional equipment –––230 V/50 Hz
24 V/50 Hz
2 limit contacts
Resistance transmitter 0 to1000 Ω
Digital positioner:– Input: 0/4 to 20 mA or0/2 to 10 V– Output: 0/2 to 10 V

For Type 3321-E3: Type 3374 Electric Actuator
Fail-safe action

With fail-safe action: Actuator stemextends or retracts

ThrustWith fail-safe action

2 kN (actuator stem extends)
500 N (actuator stem retracts)

Without fail-safe ac1.25 kN; 2.5 kN
tion
––––

Additional equipment –––Specifications subject to change without notice

230 V/50 Hz
230 V/60 Hz
24 V/50 Hz
24 V/60 Hz
2 limit contacts
Resistance transmitter 0 to1000 ΩDigital positioner with input andoutput 0/4 to 20 mA or 0/2 to10 VT 8111 EN

2024-06-10 · English

Supply voltage