Ashcroft 1290 Specifications
Data Sheet
1290 Direct Drive Process Pressure Gauge
FEATURES
Accuracy complies with ±0.5% (ASME B40.1, Grade A)
Gearless design
Ideal for shock and vibration applications
External dial adjustment
TYPICAL USES
Refineries
Offshore / Power - Power Plants
1290
41⁄2˝ dial size
SPECIFICATIONS
Accuracy: ±0.5% of span (ASME B40.100, Grade 2A)
Size:
Range: 15 to 2,000 psi
Process Connection
Location:
Process Connection
Size:
Case Style: Solid front with pressure relief back
Movement: Adjustable
Movement Materials: 300 SS
Window Material: Acrylic
Dial:
Pointer: Aluminum
Weather Protection: Dry Case: IP54
Mounting: Stem or Surface
Approvals: CRN
WETTED COMPONENTS
Bourdon Tube Process Connection Joints
Inconel® 750X, 304 SS capillary 316L SS Welded
NON-WETTED COMPONENTS
Case Ring Back Cover
ABS Thermoplastic 302 SS Polypropylene
41⁄2˝
Lower
1
⁄4 NPT Male, 1⁄2 NPT Male
Aluminum, white background, black scale
KEY BENEFITS
• Low volumetric displacement - compatible with
mini diaphragm seal
• Selection of Measurement Units (psig and dual
scale, kg/cm2/psi)
• Optional NIST Traceable Calibration Chart
MIN/MAX TEMPERATURE LIMITS (1259 ONLY)
Version Ambient Process Storage
Dry
Glycerin Fill
Silicone Fill
-20°F to 200°F
(-29°C to 93°C)
20°F to 150°F
(7°C to 66°C)
-40°F to 150°F
(-40°C to 66°C)
-20°F to 250°F
(-29°C to 121°C)
20°F to 200°F
(7°C to 66°C)
-40°F to 200°F
(-40°C to 93°C)
-40°F to 250°F
(-40°C to 121°C)
0°F to 150°F
(-18°C to 66°C)
-40°F to 150°F
(-40°C to 66°C)
All specifications are subject to change without notice.
All sales subject to standard terms and conditions.
©2017 Ashcroft Inc. 1290 _gauge_ds1.0, Rev. A, 07/18
of 31
ashcroft.com
info@ashcroft.com
1.800.328.8258
Data Sheet
1290 Direct Drive Process Pressure Gauge
ORDERING CODE Example:
Dial Size/Model Code
451290 - 41⁄2˝ ABS thermoplastic case, solid front. Direct drive 451290
System (tube and process connection)
W - Inconel® direct drive coil X750, SS process connection W
Case Design
D - Dry (IP54) D
Process Connection Sizes
02 - 1⁄4 NPT Male 02
04 - 1⁄2 NPT Male
Process Connection Location
L - Lower L
Options (If choosing an option(s) must include an “X”) X__
C4 - Individual calibration chart in accordance with ASME B40.100:2013. Accuracy traceable to N.I.S.T C4
6B - Cleaned for gasses, oxygen service
NH - SS tag wired to case
RG - Regular glass
Range (coding examples only, see range table on page 3 for all standard ranges)
Single Scales
15# - 15 psi 15#
1BR - 1 bar
1KG - 1 kg/cm
100KP - 100 kilopascal
Dual Scales
2KSC/# - 2 bar inner scale, 30 psi outer scale
2
4512 90
W D 02 L XC4 15#
All specifications are subject to change without notice.
All sales subject to standard terms and conditions.
©2017 Ashcroft Inc. 1290 _gauge_ds1.0, Rev. A, 07/18
of 32
ashcroft.com
info@ashcroft.com
1.800.328.8258
Loading...