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G Series Lower Mount

Low Pressure Gauges from Marsh Instruments incorporate a diaphragm element allowing for accurate low-pressure readings in support of a variety of applications, with ASME Grade A 2/1/2% accuracy for ranges above 30” of water. Available ranges include vacuum and pressure in inches of water, ounces per square inch, kilopascals, and millimeters of mercury.

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Variations: G22675, G24500, G22704, G22705, G22687, G22695, G22696, G22697, G22685, G22702, G22699, G22677, G22680, G24501, G22684, G22691, G26062, G22706, G22709, G22707, G22710, G22912, G22914, G22918, G24502, G22921, G22711, G24503, G22740, G22741, G22723, G22731, G22732, G22733, G22721, G22738, G22735, G22713, G22716, G33404, G22720, G22727, G33405, G22742, G22745, G22743, G22746, G33406, G29804, G33407, G26962, G33409, G24608, G24631, G24625, G24626, G24613, G24617, G24618, G24619, G24612, G24624, G24621, G24609, G24610, G24632, G24611, G24615, G26894, G24627, G24629, G24628, G24630, G24708, G24709, G24710, G24716, G24711, G25756, G25981, G25749, G25844, G25982, G25980, G26021, G25755, G33414, G26018, G25754, G33415, G25753, G25750, G25757, G26025, G33416, G33417, G25748, G25984, G33418, G26023, G26020, G26016, G26019, G33420

Category:

Description

Features:
  • Diaphragm Internals for Accurate Low Pressure Measurement
  • Weatherproof- Hermetically Sealed Stainless Steel Case
  • 316 Stainless Steel Internals
Applications:
  • HVAC
  • Boiler/HVAC
  • Burner
  • Oil & Gas
  • Industrial
  • Commercial

Additional information

Spec accuracy

For Ranges 30" H2O and above: 2/1/2%(ASME Grade A), For Ranges Below 30" H2O: 3/1/3%

Bezel

Twist Lock Lens

Connection

1/8" or 1/4" NPT

Design

Meets/Exceeds ASME B40.100

Pointer

Aluminum, Black Painted

Mount

Lower Mount

Vent plug

N/A

Accuracy

For Ranges 30" H2O and above: 2/1/2%(ASME Grade A), For Ranges Below 30" H2O: 3/1/3%

Subtitle

Diaphragm/Capsule Internals

Series

G Series

Dial color

Black Markings on White

Dial size

2.5", 3.5", 4.5"

Pressure ranges

Low Pressure Vacuum Pressure 10" H20 through 10 psi

Case

Steel, Black Painted

Standard case fill

Dry, Non-Fillable

Window

2.5" & 3.5 – Acrylic Twist-in Clearlok, 4.5" Acrylic

Movement

Brass

Dial sizes

2.5", 3.5", 4.5"

Ambient temperature

'-40 to 160F

Internal material

Copper Alloy

Tube socket

Phosphor Bronze Diaphragm

Standard scale

Dual Scale with kPa, Triple Scale: oz/in², in H20, & kPa

Weights

see variation page