3000 Psi Glycerin Liquid Filled Hydraulic Pressure Gauge, 2.5″ Dial Size, 1/4″ NPT Lower Mount, Stainless Steel Case, for Air


  • Brass and Stainless Steel wetted parts for measuring non-corrosive liquid and gas pressure. Such as water, oil pressure test. Compatible with gauge regulator, hvac, beer kegs, brew setups, kombucha, hydraulic force and etc..
  • Circular dial is enclosed in a 304 stainless steel case for corrosion resistance. Glycerin filled inhibits pointer flutter and prevents damage to the internal mechanics from vibration and pulsation.
  • Measures pressure with dual scale (0-3000 psi/0-20000 kPa). Display accuracy is + or – 3/2/3% over the entire range of the gauge
  • IP67 waterproof prevent condensation inside caused fogging of the window. Offer clear reading.
  • Lower mount male connection with 1/4″ NPT thread



From the brand

Product Description




SENCTRL offers pressure instrument solutions for critical Process and Industrial/OEM (original equipment manufacturer) applications across the globe. Our extensive industry experience and customer-driven approach allow us to meet and exceed customer and market expectations.

SENCTRL 0-3000 PSI Glycerin Filled Pressure Gauge

The SENCTRL Y.6 stainless steel case pressure gauge offers exceptional quality, durability, and performance. The inside of the gauge is filled with glycerine which allows to use it under severe conditions accompanied by vibrations and pulsations. An ideal choice for satisfying most applications and installation requirements.

  • 2-1/2″ dial size, 1/4″NPT lower mount
  • Pressure Ranges: 0-3000 psi (0-20000 kPa)
  • Brass and stainless steel wetted parts, glycerin filled
  • For pressure measuring of gas, liquid which is not corrosive to brass.




Robust design

Stainless steel case pressure gauge offers exceptional quality, durability, and performance.

Vibration and shock-resistant

Glycerine filled provides superior resistance to shock, vibration and pulsation; extends product life and reduces maintenance costs.

IP67 grade waterproof

Prevent water infiltrating and fogging of the window. Provide a clear reading.


Dial Size Ø63mm[2.5 inches]
Case Material Stainless Steel
Scale Ranges 0-3000 psi (0-20000 kPa)
Filling Liquid Glycerin
Mounting Lower Mount
Connection Size 1/4″ NPT Male
Wetted Parts Materials Brass and Stainless Steel
Indication Accuracy +/-3-2-3%
Medium Temperature 140 ℉/60 ℃ maximum
Ambient Temperature -4 to 140 ℉/-20 to 60 ℃
Weather Protection IP67 Waterproof

Why Liquid Filled?

  • The liquid filling dampens vibration, mechanical shock, and pressure pulsations, enabling easier pressure readings.
  • The liquid filling eliminates corrosion, moisture penetration and icing due to the ambient atmosphere.
  • The liquid filling lubricates all moving components, dramatically reducing wear of the movement.

How to choose the right scale range?

  • The user must ensure that the appropriate pressure gauge has been selected in terms of scale range and design. The scale range is optimally selected when the operating pressure lies in the middle third of the scale range.

Where are liquid filled pressure gauge used?

Examples include:

  • Pressure washers and sprayers
  • Paint spray equipment
  • Compressors
  • Irrigation equipment
  • Hydraulic systems
  • Hydraulic hand tools

Instructions of a pressure gauge vent plug:

  • For ≤300 psi pressure ranges, gauges require some type of vent valve, compensating membrane, or other mechanism for pressure compensation. Otherwise, changes in ambient temperature such as direct sunlight would distort the measured pressure. (No compensation is necessary in gauges with >300 psi pressure ranges, as the pressure built up inside the case is negligible in relation to the full scale range.)
  • All pressure gauges sealed for the purpose of liquid-filling have a device to assure atmospheric compensation. To correctly vent the solid rubber fill plugs, simply cut off the tip of the plug which will open a small hole through so the gauge can vent. Only for mounting the gauge in a upright position.

Additional information

Weight 7.05 kg
Package Dimensions

‎ 3.46 x 2.87 x 1.46 inches; 7.05 ounces

Date First Available

‎ August 31, 2022


‎ B0BCHM91N6

Country of Origin