Diaphragm Gauge - G Series
Item: DIAPHRAGM

Technical Documents Marsh 2009 Catalog (PDF)

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