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Products > Marsh Pressure Gauges
Diaphragm Gauge - G Series
Item: DIAPHRAGM
- Accuracy ASME Grade A = ± 2/1/2 (±1% of range
across middle half of scale) and
Grade B = ± 3/1/3 (± 2% of range
for ranges below 30 H2O)
- Case Size 2½", 3½", & 4½" diameter
- Case Material: Drawn steel phosphatized case
for rust resistance & finished
with black enamel paint
- Case Style: Plain case, Panel mount case
with U-Clamp and three
hole front flanged case
- Tube & Socket: Phosphor bronze diaphragm soft-soldered to brass socket
- Movement: Brass sector and pinion
- Connections: 1/8" & ¼" NPT; lower mount,
center back, center back
w/U-clamp, and special connections
- Ranges: Dual scale with kPa; 0 to 200
H20 vacuum; 0 to 300 H20,
0 to 10 psi, 0 to 160 oz/in2.
Triple scale 0-58 oz/in2, inches
H20 & kPa. Compound ranges
available
- Standard Dial: Dual scale kPa & H20 or triple scale kPa, H20 & oz/in2
- Dial Color: Black markings on white
- Pointer: Black aluminum w/ brass bushing
- Window: 2½" & 3½": Twist-on clearlok
acrylic window 4½": Flat acrylic window with friction ring
Technical Documents
MARSH Catalog (PDF)
General Service Gauges, Liquid Filled Gauges
MARSH Catalog (PDF)
Precision Service, Process, Diaphragm, HVAC/R, Special Application Gauges
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