Application
Liquid-filled pressure gauges provide users with a number of advantages in certain measurement applications.  They are ideally suited for uses on equipment where excessive vibration and pulsation are encountered, such as pumps, compressors, machine tools, etc.
Size
1.5”, 2”, 2.5”& 4”
Accuracy
1.5”& 2”2.5” :  ±2.5% of Span
4” :  ±1.6% of Span
Ranges
1.5” size – 30”Hg and above 15psi to 3000psi
2” size – 30”Hg and above 15psi to 5000psi
2.5” & 4” size – 30”Hg & above 15psi to 8000psi
or other equivalent units of pressure or vacuum range.
Operating Temperature
Ambient:  -4℉ to 140℉ (-20℃ to 60℃)
Media:  Max. 158℉ (+70℃)

Connection
Material: Copper Steel
Lower Mount(LM)
Center Back Mount (CBM)
1/8”,1/4”, 1/2” NPT limited to wrench flat area
Bourdon Tube
Material: Copper alloy
Movement
Brass
Dial
Gavalume steel, white background with black markings
Pointer
Aluminum, black finish
Case
Drawn 300 series stainless steel, with removable nipple for venting, pressure relief & liquid-fill access
Ring
Permanent crimped SST ring
Window
Polycarbonate, sealed to case with BUNA-N gasket
Standard Liquid  
Glycerin

Specification Chart1