Freon pressure gauge, compound gauge. Material and welding methos used can obtain excellent leaking-proof, pressure impulse-proof and vibration-proof characteristics, suitable for air condition system, R12 . 22 . 502 . R134.
1. Diameter: (1) Bottom connection: 2.6". (2) Liquid filled: 2.5". (3) Back connection: 2.5". 2. Range: low pressure -76 cmHg ~ 0 ~ 250 psi (15 kg/cm2), high pressure 0 ~ 500 psi (30 kg/cm2). 3. Connection: (1) Bottom connection: 1/8" NPT. (2) Back connection : 7/16" UNF. 4. Material: (1) Case and bezel: Non-corrosive steel or SUS304. (2) Internals: Phosphor Bronze, brass. 5. Accuracy: +/- 1.5%.