Data Sheet
1327CM Pressure Gauge Comparator
FEATURES
 1 to 3, 6˝ certified test gauges provided
 Accuracy: ±0.1% of span, ASME B40.100,grade 4A gauges
 Maximum operating pressure: 10,000 psi
 Compatible with a variety of operating fluids,
including water

TYPICAL USES
Calibration laboratories
Portable for field calibrations

SPECIFICATIONS
Accuracy:

Gauges:1327CM Pressure Gauge Comparator(Pressure gauge pictured on left not included)±0.1% of gauge span
Ashcroft Model A4A, 6˝, ASME B40.1,
Grade 4A, temperature compensated
Bourdon tube material – 403 Stainless Steelor Beryllium Copper (depending on range)
Gauge ranges – (see table)

Operating Pressure:

0 to 10,000 psi max.

Reservoir Volume

Approximately 1.5 pints (0.7 liter)

Pump Body Material

Aluminum alloy
1327CMS – SAE 20 automotive or machine oil
1327CMH – Phosphate or glycol basehydraulic fluids
1327CMO – Distilled water (with sodium
molybdate and phosphoric acid additives
recommended as corrosion inhibitors)
Standard (1327CMS and 1327CMO) – Buna-N
Optional (1327CMH) – Ethylene Propylene
Metal carrying and storage box
Lower connection offset pipe assembly
Back connection pipe
Gauge pipe extension assembly¼ and ½ NPT Female adapters
Wrench (1˝x11⁄8˝)
Wrench (7⁄8˝x1˝ )Wrench (5 ⁄8 ˝)
Pointer puller set
Installation and Operation Manual
Spare O-ring kit

Operating Fluid:

O-Ring Seals:

Accessories:

KEY BENEFITS• Easy to use – no weight stacking• Can be used to calibrate oxygen service gauges• Higher accuracy gauges support 4:1 calibration
ratio

SPECIFICATIONS (Continued)
Standard – Traceable calibration certificate
Certification:provided for each gauge.
Carrying Case
10 ½˝ x 8 ½˝ x 24 ½˝ (inches)
Dimensions:(11˝ x 10˝ x 24½˝ including latches and handle)

1 of 3All specifications are subject to change without notice. All sales subject to standard
terms and conditions. Ashcroft® and Trust the Shield® are trademarks of Ashcroft Inc.
©2022 Ashcroft Inc. 1327CM_PrComp_ds_RevA_09-29-22

ashcroft.com | 1.800.328.8258 | Contact Us

Data Sheet
1327CM Pressure Gauge Comparator
ORDERING CODE          Example:

1327CMSABE

Model
1327CM - Pump with Tools and Accessories

1327CM

Operating Fluid
S - Petroleum Oil (standard)S

H - Phosphate Ester or Glycol based (optional)
O - Water (for oxygen service)
Gauge sets - psi Ranges
X - No gauge
A - 0/30
B - 0/100
C - 0/500
D - 0/1,000
E - 0/5,000
F - 0/10,000
AB - 0/30, 0/100
AC - 0/30, 0/500
AD - 0/30, 0/1,000
AE - 0/30, 0/5,000
AF - 0/30, 0/10,000
BC - 0/100, 0/500
BD - 0/100, 0/1,000
BE - 0/100, 0/5,000
BF - 0/100, 0/10,000
CD - 0/500, 0/1,000
CE - 0/500, 0/5,000
CF - 0/500, 0/10,000
DE - 0/1,000, 0/5,000
DF - 0/1,000, 0/10,000
EF - 0/5,000, 0/10,000
ABC - 0/30, 0/100, 0/500
ABD - 0/30, 0/100, 0/1,000
ABE - 0/30, 0/100, 0/5,000

ABE

ABF - 0/30, 0/100, 0/10,000
BCD - 0/100, 0/500, 0/1,000
BCE - 0/100, 0/500, 0/5,000
BCF - 0/100, 0/500, 0/10,000
CDE - 0/500, 0/1,000, 0/5,000
CDF - 0/500, 0/1,000, 0/10,000
DEF - 0/1,000, 0/5,000, 0/10,000
Other range gauges, including metric scales, are available on request. Please consult factory.

2 of 3All specifications are subject to change without notice. All sales subject to standard
terms and conditions. Ashcroft® and Trust the Shield® are trademarks of Ashcroft Inc.
©2022 Ashcroft Inc. 1327CM_PrComp_ds_RevA_09-29-22

ashcroft.com | 1.800.328.8258 | Contact Us

Data Sheet
1327CM Pressure Gauge Comparator
Dimensions in inches and [mm]Offset 5˝[127]17½˝[445]

13 ⁄4˝[350]311˝ [280]

For lower
connectgauge

For backconnect gauge

153⁄4˝[400]7½˝ [190]

23⁄8˝[60]2˝ [51]

4 Holes 9⁄32˝[7.14]

201⁄8˝203⁄4˝±1⁄8˝ [511 ±3 mm]±1⁄8˝ [527 ±3 mm]

5⁄16˝ [7.94]

3 of 3All specifications are subject to change without notice. All sales subject to standard
terms and conditions. Ashcroft® and Trust the Shield® are trademarks of Ashcroft Inc.
©2022 Ashcroft Inc. 1327CM_PrComp_ds_RevA_09-29-22

ashcroft.com | 1.800.328.8258 | Contact Us