Pressure Gauges
Sus gauge P100 P135 P170 P200
P300 P400 P440 P500 P550
P570 P600 P700 P800 P850
P950 Accessories      

P400 SERIES Refrigeration Pressure Gauge

The P400 series refrigeration system use pressure gauge provides several ranges for various types of refrigerant. The special designed welding joints offers very good welding quality to avoid the leakage which may cause system damage. The guages are available in bottom and front flange mount with internal adjusting pointer or screw for resetting the pointer, a retard portion in the P400 series gauges are also available to protect the gauges under over load accident.

Norminal 2 1/2" (63mm) 2 3/4" (70mm) 4" (100mm)
Measuring range 30" Hg Vac. to 500 psi
Casing &bezel Steel, black corrosion resistant painted, sus 304#
Window Engineering plactic, one piece threaded in window
Dial Aluminum, white background, black/red graduation and lettering for pressure/tempearture & vacuum
Movement Brass
Bourdon tube Brass or phosphor bronze.
Connection 7/16-20 UNF for panel mount type., 1/8" NPT/BSPT for bottom mount type
Filling 99.5% Glycerin or 100% silicone oil
Pointer Aluminum, black painted zero adjustable (DRY TYPE)
Accuracy +/- 1.5% f.s.d.
Temperature range -20 up to 60