Refrigeration Ammonia Gauge

Brand: Marsh Bellofram Group of Companies

The Refrigeration Ammonia Gauge from Marsh Instruments includes a restrictor that protects the gauge against sudden shock or pulsating pressure.

The inner dial arc shows pressure, outer arc shows the corresponding temperature scale.

The Marsh Instruments Refrigeration Ammonia Gauge is available in a plain stainless steel case.

Marsh Instruments Refrigeration Ammonia Gauge is designed for use on ammonia compressors and other ammonia refrigeration equipment.
Features
  • Range 30″ Hg to 150 psi or 300 psi. 
  • Case Sizes: 63 mm and 3-1/2″. 
  • ASME Grade B.

Specifications

Accuracy

  • ASME Grade B ­- ± 3/2/3 % (± 2 % of Range across middle half of scale)

Case Sizes

  • 63 mm and 3-1/2” diameter

Case Material

  • 304 Stainless Steel

Case Style

  • LM - Lower Mount

Tube & Socket

  • Stainless Steel

Movement

  • Brass

Connection

  • 1⁄4” NPT

Temperature Scale

  • -35° to 85° F
  • -35° to 120° F

Ranges

  • 30” Hg Vac to 300 psi
  • Compound 30” Hg Vac to 150 psi

Dial Standard

  • Single scale psi with corresponding Ammonia Temperature scales

Dial Color

  • Black Markings on White

Pointer

  • Aluminum, Black Painted

Fill Liquid

  • Glycerine
  • Silicone

Window

  • Polycarbonate

Restrictors

  • Standard

Packaging

  • Optional clam shell packed gauges are on 4-1⁄2” x 6-5/8” Cards, prepunched for pegboard hanging

Weight

  • 63 mm: 0.5 lb
  • 3-1/2”: 1.0 lb

Documentation

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