Ammonia Refrigerant Gauge

Ammonia Refrigerant Gauge


The Series P440 gauge is designed for ammonia refrigeration system and can be applied to handle other chemicals not injurious to the wetted parts. Specifications are: nominal size :2-1/2"(63 mm), 3-1/2"(80 mm), 4"(100 mm); measuring range: 30"Hg Vac -0-150 PSI; and 30"Hg Vac -0-300 PSI; casing: steel black or grey painted; window: engineering plastic one-piece thread-in window; pointer: aluminium, black painted; dial: aluminium, white background, black graduations (Vac in red) and lettering; movement:300 series stainless steel or brass; Bourdon tube: 316 stainless steel, soft soldered; connection: steel or SS, 1/4-", 3/8"NPT/BSPT are standard; temperature range: -20? to 60?C; and operating range: 60% of full scale reading for fluctuation loads, 75% of full scale reading for static loads.

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