Liquid Filled Pressure Gauges

Pressure Gauges

Backed by 20+ Years of OEM/ODM manufacturing experience, Exact Instrument delivers reliable pressure and temperature measurement solutions for industrial applications worldwide.

Liquid-filled pressure gauges are designed for pressure measurement in applications exposed to vibration, pulsation, and mechanical shock. The gauge case is filled with glycerin or silicone oil, while an internal Bourdon tube responds to system pressure and drives the pointer to display the measurement value. The filling liquid inside the case keeps the pointer stable during vibration and pressure fluctuations and reduce wear on internal components. These gauges are widely used for pressure monitoring in compressors, reciprocating pumps, plunger pumps, engines, and other vibration-prone equipment. They are also suitable for hydraulic systems operating under frequent pressure fluctuations, including die casting machines, hydraulic presses, and forging presses, as well as general fluid pressure measurement in pipelines and industrial process systems.

Materials of Construction

Case material: 304 Stainless steel or 316 Stainless steel
Window material: Tempered glass, Polycarbonate (PC), Acrylic, or Safety glass

Previously Manufactured Specifications

115A Liquid Filled Gauge (1.5"/2.0"/2.5"/3"/4")
1. Accuracy class: ±2.5%, ±1.6%
2. Nominal dial size: 1.5"(40mm), 2.0"(50mm), 2.5"(63mm), 3"(80mm), 4"(100mm)
3. Pressure range: Vacuum to 1000bar (15000psi), customizable within the range
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115B Glycerin-Filled Gauge (2.5"/4")
1. Accuracy class: ±2.5%, ±1.6%
2. Nominal dial size: 2.5" (63mm), 4" (100mm)
3. Pressure range: Vacuum to 1000 bar (15000 psi), customizable within this range
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115C Glycerin Filled Pressure Gauge (2.5"/4")
1. Accuracy class: ±2.5%, ±1.6%
2. Nominal dial size: 2.5" (63mm), 4" (100mm)
3. Pressure range: Vacuum to 1000 bar (15000 psi), customizable within this range
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115OP Oil Filled Pressure Gauge (2.5"/4")
1. Accuracy class: ±2.5%, ±1.6%
2. Nominal dial size: 2.5" (63mm), 4" (100mm)
3. Pressure range: 0–25 bar, 0–60 bar
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116A Liquid Filled Gauge (1.5"/2"/2.5"/3"/4")
1. Accuracy class: ±2.5%, ±1.6%
2. Nominal dial size: 1.5" (40mm), 2.0" (50mm), 2.5" (63mm), 3" (80mm), 4" (100mm)
3. Pressure range: Vacuum to 1000 bar (15000 psi), customizable within this range
View Details
116B Liquid Filled Gauge (2.5"/4")
1. Accuracy class: ±2.5%, ±1.6%
2. Nominal dial size: 2.5" (63mm), 4" (100mm)
3. Pressure range: Vacuum to 1000 bar (15000 psi), customizable within this range
View Details
117A Liquid Pressure Gauge (2.5"/4"/6")
1. Accuracy class: ±1%, ±1.6%
2. Nominal dial size: 2.5" (63mm), 4" (100mm), 6" (160mm)
3. Pressure range: Vacuum to 1000 bar (15000 psi), customizable within this range
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118A All Stainless Steel Pressure Gauge (2.5"/4"/6")
1. Accuracy class: ±1%, ±1.6%
2. Nominal dial size: 2.5" (63mm), 4" (100mm), 6" (160mm), 8" (200mm), 10" (250mm)
3. Pressure range: Vacuum to 1000 bar (15000 psi), customizable within this range
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118AN All Stainless Steel Pressure Gauge (4")
1. Accuracy class: ±1%, ±1.6%
2. Nominal dial size: 4" (100mm)
3. Pressure range: Vacuum to 1000 bar (15000 psi), customizable within this range
View Details

Your Trusted Partner for Industrial Measurement Instruments

With over 20+ Years of manufacturing experience, Exact Instrument specializes in OEM/ODM production of pressure gauges, pressure transmitters, and thermometers. Backed by advanced manufacturing, strict quality control, and reliable delivery, we help customers worldwide build dependable industrial measurement solutions.

20+ Years of Manufacturing Experience

20,000+ Units Produced Daily

15,000 m² Modern Manufacturing Facility

Your certified partner for industrial instrument manufacturing

Ready to Source Reliable Industrial Measurement Instruments?

Whether you need high-volume standard pressure gauges or custom pressure transmitters and thermometers, Exact Instrument combines 20+ Years of OEM/ODM manufacturing experience with a daily production capacity of over 20,000 units to support your business.