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P440 SERIES Ammonia Refrigerant Gauge

The ammonia refrigerant gauge is designed for ammonia refrigeration system and can also be applied handle other chemicals not injurious to the wetted parts.

Specificationa:
Norminal 2 1/2" (63mm) 3" (75mm) 3 1/2" (80mm) 4" (100mm)
Measuring range 30" Hg Vac. -0- 150 psi
30" Hg Vac. -0- 300 psi
Casing &bezel Steel, black or gray painted. SUS 304#
Window Engineering plactic, one piece threaded in window
Dial Aluminum, white background, black graduations (Vac. in red) and lettering
Movement 300series stainless steel or brass
Bourdon tube 316 stainless steel, soft soldered Argon solder
Connection Steel or stainless steel, 1/4" ,3/8" NPT/BSPT are standard
Pointer Aluminum, black painted
Accuracy +/- 1.5% f.s.d.
Temperature range -20 up to 60
Operating range 60% of full scale reading for Fluctuating loads
75% of full scale reading for statistic loads