Ammonia refrigerant pressure gauge 1706

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Designed for installation in ammonia refrigeration systems, the Model 1706 ammonia, steel case pressure gauges are available in 2-1/2" and 3-1/2" gauge sizes. These 1706 compound gauges can also be used in environments with other chemicals not injurious to wetted parts. A silicone-dampened movement greatly extends the life of the pressure gauge, and is particularly effective in punishing applications like ammonia compressors. RANGES: 30* Hg VAC, 0-150 psi; 30* Hg VAC, 0-300 psi ACCURACY: ±3-2-3% of span (Grade B) BOURDON TUBE: 316 stainless Steel, soft soldered WINDOW: Threaded, polycarbonate standard (photograph shown with optional Steel ring) MOVEMENT: Silicone treated brass movement DIAL: Steel, white background with black markings; réfrigérant température scale in red POINTER: Aluminum, adjustable, black finish CASE: Drawn Steel, black corrosion-résistant paint CONNECTION: 1/4-18 N PT, LM, nickel plated Steel