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Heating System/Altitude Gauge

Marsh Instruments Heating System Gauges are available in 3 1/2” and 4 1/2” dial sizes. An adjustable red altitude pointer is standard on feet of water gauges. This feature allows the user to indicate the head of water to be maintained in the system. Marsh Instruments Heating System Gauges provide accurate psi and feet of water measurements in elevated tanks, reservoirs, standpipes, and similar applications where reliability and dependability are crucial in heating system equipment.

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Description

Features:
  • Adjustable Red Set Hand
  • Multiple Standard Ranges Available
  • 3.5″ or 4.5″ dials
Applications:
  • Heating Systems
  • Water Tank Level
  • HVAC
  • Plumbing
  • Commercial
  • Industrial

Additional information

Spec accuracy

3.5" /- 3/2/3% (ASME Grade B), 4.5" /- 2/1/2 % (ASME Grade A)

Bezel

3.5"- Twist Lock Lens, 4.5" Aluminum, Black Painted

Connection

1/4 NPT- Lower Mount

Design

Meets/Exceeds ASME B40.100

Pointer

Aluminum, Black Painted

Mount

3.5" – Lower Mount, 4.5" Lower Mount with Backflange

Vent plug

N/A

Accuracy

/- 3/2/3% (ASME Grade B)

Series

Heating System/Altitude Gauge

Dial color

Black Markings on White

Dial size

3.5" or 4.5"

Pressure ranges

15/300 psi and 30/690 ft H2O

Case

Steel, Black Painted

Standard case fill

Dry, Non-Fillable

Window

3.5" – Acrylic, 4.5" Instrument Glass

Movement

Brass

Dial sizes

3.5" or 4.5"

Ambient temperature

Dry -40 to 160

Internal material

Copper Alloy

Tube socket

Copper Alloy

Standard scale

psi/ft H2O

Weights

see variation page