PFH Hydraulic Stainless Steel Liquid Filled Gauge



  • Ideal for pumps, compressors, hydraulic presses, power packs and pneumatic equipment in industrial environments with extreme vibration and pulsation


  • Robust construction resistant to extreme vibration and pulsation
  • Universal fill compatibility for flexibility of filling with glycerin or silicone
  • All brass internals
  • Engineered restricted orifice available to protect against additional pressure spikes
  • Polished crimp-on bezel
  • Ventable fill plug for easy venting of case pressure
  • Single (psi) or dual scale (psi/kPa)/(psi/bar) available
  • Optional U-Clamps, front and back flanges
  • ASME B40.100 compliant (EN837-1 compliant)
  • CRN registered
  • 5 year warranty
Dial 2.5″ (63mm), 4″ (100mm) white aluminum with black and red markings
Case AISI 304 SS
Lens Polycarbonate
Ring AISI 304 SS, Crimp-On
Socket OT 58 brass
Connection 1/4″ or 1/2″ NPT standard with restrictor screw (standard on dual scale, optional on psi only scale)
Fill Liquid
Glycerin standard (silicone and dry case optional)
Bourdon Tube
Phosphor bronze C or coil shaped socket
Movement OT 59 brass
Pointer Aluminum, anodized black
Welding Silver alloy
Over-pressure Limit

25% for pressures up to 1,450 psi (9,998 kPa)

15% for pressures over 1,450 psi (9,998 kPa)

Socket Gasket
Buna N
Fill Plug
Buna N, ventable with brass plunger
Lens Ring Gasket
Silicone rubber
Working Pressure
Maximum 75% of full scale value
Ambient/Process Temperature

Dry: -40°F to 200°F (-40°C to 93°C)

Glycerin Filled: -4°F to 150°F (-20°C to 65°C)

Accuracy ±1.5% of full scale value
Enclosure Rating
Warning: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm.  For more information go to

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