Ashcroft 1127, 1128 Specifications
Data Sheet
1127/1128 Differential Pressure Gauge
FEATURES
Rugged design
Zero center dial (1128)
Available with diaphragm seals
TYPICAL USES
Refineries
Chemcial and petrochemical plants
Water and wastewater pressure control
Mining and metals
Filtration monitoring, level and flow measurement
SPECIFICATIONS
Accuracy:
Sizes:
Ranges:
Process Connection
Location:
Process Connection
Sizes:
Case Style:
Window Material:
Dial:
Pointer:
Weather Protection: Case is not sealed and reccomended for weather
Movement:
Mounting Options:
WETTED COMPONENTS
Bourdon Tube Process Connection Joints
316 SS 316 SS Welded
NON-WETTED COMPONENTS
Case Ring Back Cover
Cast aluminum,
black epoxy coated
±2-1-2% of span (ASME B40.100 Grade A)
4½˝, 6˝
10 -1,000 psi
Lower only
¼ NPT, ½ NPT adaptor
Open Front
Glass
White painted aluminum with black markings
Black
protected environment only
Bronze
Stem, Surface
Aluminum,hinged,
black epoxy coated
Aluminum
1127
4½˝, 6˝ dial sizes
1128
4½˝, 6˝ dial sizes
KEY BENEFITS
• Built in back flange for surface or wall
mounting
• Zero center dial to indicate negative or
positive pressure
• Compatible with diaphragm seals
MIN/MAX TEMPERATURE LIMITS
Version Ambient Process Storage
Dry
-20°F to 200°F
(-29°C to 93°C)
-20°F to 250°F
(-29°C to 121°C)
-40°F to 250°F
(-40°C to 121°C)
All specifications are subject to change without notice.
All sales subject to standard terms and conditions.
©2019 Ashcroft Inc. 1127_gauge_ds_Rev C_Ltr_05-19
ashcroft.com
info@ashcroft.com
1.800.328.8258
1
of 5
Data Sheet
1127/1128 Differential Pressure Gauge
ORDERING CODE Example:
Dial Size
45 - 4½˝ 45
60 - 6˝
Models
1127 - Aluminum, open front case 1127
1128 - Aluminum, open front case - zero center dial
System
SD - 316 SS tube/316 SS process connection SD
Process Connection Size
02 - ¼ NPT Male 02
04 - ½ NPT Male (uses adaptors)
Process Connection Location
L - Lower L
Options (if choosing an option(s) must include a “X”) X__
45 1127
SD
02 L XC4 100#
Windows/Pointers
PD - Acrylic window
SG - Safety glass
EP - Maximum pointer
EQ - Minimum pointer
SH - Red set hand, stationary
EO - Red set hand, adjustable
Other
C4 - Individual calibration chart C4
NH - Stainless Steel tag wired to case
TM - 2˝ pipe mounting bracket
6B - Cleaned for oxygen service
Range (coding example only, see range tables for all standard ranges)
100# - 100 psid 100 #
All specifications are subject to change without notice.
All sales subject to standard terms and conditions.
©2019 Ashcroft Inc. 1127_gauge_ds_Rev C_Ltr_05-19
ashcroft.com
info@ashcroft.com
1.800.328.8258
2
of 5
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