Ashcroft 251009SW02BXFFSGN1/1.5BR/#
2.5" SS Bourdon Tube Compound Gauge, -30 inHg/+15 psi (≈-1/+1.5 bar), 1/4" NPT Back, Panel Mount, Dry
Ashcroft Type 1009 Duralife, 2.5 in (63 mm) dial, all-stainless construction: 316 stainless steel Bourdon tube with a 316L stainless steel process connection, 304 stainless steel case and removable 304 stainless steel bayonet ring. The configuration 251009SW02BXFFSGN1/1.5BR/# is the dry gauge with a 1/4 in male NPT back connection on the case centreline, a front flange for flush panel mounting, a safety-glass window in place of the standard polycarbonate, and a dual-scale dial reading -1/0/1.5 bar on the inner scale with 30 inHg/0/20 psi on the outer scale. Three differences a buyer should weigh before substituting. Accuracy: the Ashcroft is built to ASME B40.100 Grade 1A at plus or minus 1.0% of span, while the General Instruments gauge listed here is built to EN 837-1 Class 1.6 at plus or minus 1.6% of span. Across this 2.5 bar span that is about plus or minus 0.040 bar against plus or minus 0.025 bar, so the substitute is the looser of the two. Ambient temperature: the Ashcroft dry gauge is rated -40 to +93 C ambient; this gauge is rated -20 to +60 C. Confirm the mounting location before substituting in unshaded outdoor service, in compressor or engine houses, or anywhere else the panel runs hot. Panel mounting: the Ashcroft 2.5 in front flange takes a 64 to 66 mm panel cut-out with three 4.1 mm holes equally spaced on a 79.5 mm bolt circle. This 63 mm gauge uses the metric 63 mm front-flange pattern, so confirm the panel drilling before reusing an existing cut-out. Measuring range, second scale, dial size, connection size and thread form, connection position, dry case prepared for filling, case and wetted materials, and the glass window all correspond.
Specifications of the Ashcroft part
- Accuracy Class
- Class 1.6 (ASME B40.100 Grade 1A equivalent)
- Ambient Temperature Range
- -40...+65°C
- Blow Out Disc
- Provided on top of case (Neoprene)
- Case Filling
- Dry case, prepared for filling
- Case Material
- SS304
- Dial Size
- 63 mm / 2.5"
- Gauge Type
- Compound
- Measuring Range
- -1...1.5 bar (-30 inHg/+15 psi)
- Measuring System
- Bourdon Tube
- Model
- 1009
- Mounting Flange
- SS front flange (panel mount)
- Mounting Position
- Back mount
- Over Range
- 125% FSD
- Pressure Gauge Standard
- ASME B40.100 (EN 837-1 equivalent)
- Process Connection
- 1/4" Male NPT
- Secondary Scale
- 2nd scale psi
- Wetted Parts
- SS316
- Window
- Glass, clear
