GC-BOB
product search
Other AccessoriesIIotpressure GaugeFlow MeterPressure Gauge SeriesThermometer Series
search
This liquid-filled water pressure gauge effectively absorbs shock and pressure pulses through glycerin/silicone oil filling, ensuring high-precision pressure monitoring of ± 1.0% in harsh environments. It is an ideal choice for industrial pumping and waterway systems and is available for bulk purchase.
Accuracy class:
± 1.0%
Housing:
304 stainless steel
Range:
0-10000 psi
Stable reading under high frequency vibration: filled with 99.7% food grade glycerin, can absorb more than 90% of mechanical vibration and pressure fluctuation, prevent the pointer from shaking violently, and ensure that the reading is still stable under high frequency vibration conditions.
Long-term mechanical lubrication and wear reduction: the internal movement is completely immersed in lubricating liquid, which reduces the friction between gears by 40%, and prolongs the mechanical life of the instrument by 2-3 years compared with the ordinary dry pressure gauge under continuous operation environment.
Isolate outside air from entering: The sealed liquid-filled structure completely isolates external air from entering, solves the problem of condensed water generated inside the dial under temperature difference environment, and ensures that the window is always clear and easy to read in outdoor humid environment.
High-standard corrosion-resistant structure: AISI 304 stainless steel shell with IP65 protection level, can resist chemical splash and salt spray corrosion in industrial sites, suitable for harsh industrial production environment.
Relieve instantaneous pressure shock: the volume damping effect of the internal liquid can alleviate the instantaneous pressure pulse when the system starts, reduce the risk of deformation caused by overload of the movement, and significantly reduce the damage rate of the instrument.
All-round range adaptability: providing a variety of range options from 0-15 psi to 0-15,000 psi, accurately adapting to diverse monitoring needs from civil water supply to ultra-high pressure industrial hydraulic systems.
| Parameter name | Specifications |
| Dial Size | 2.5″ (63mm), 4″ (100mm), 6″ (150mm) |
| Measurement range | 0 to 10,000 psi (0 to 700 bar) |
| Accuracy level | ANSI Grade 1A (±1.0%) |
| Filling Liquid | Glycerin (standard) or silicone oil (for extremely low temperature environments) |
| Interface Material (Connection) | 316L stainless steel or brass |
| Thread specification | 1/4″, 1/2″ NPT/BSP/G thread |
| Case Material | AISI 304 stainless steel |
| Operating temperature (Ambient Temperature) | -20°C to +60°C (glycerin) / -40°C to +60°C (silicone oil) |
| Ingress Protection Level | IP65 sealing design |
Industry-leading dynamic stability and durability
Compared with ordinary dry pressure gauges, this liquid-filled water pressure gauge is filled with high-viscosity damping fluid (such as glycerin or silicone oil), which improves the stability of readings in dynamic environments and the reliability of long-term operation by more than 60%. In industrial applications, this design can not only absorb excess kinetic energy through hydraulic physical characteristics, but also provide continuous physical lubrication for the internal precision movement components, effectively preventing the gear wear and precision attenuation caused by high frequency vibration of the traditional pressure gauge.
Full life cycle protection in harsh environments. This product features a fully sealed, moisture-proof, anti-corrosion, anti-impact design. Its unique liquid-filled damping layer protects against high-pressure impact and isolates internal components from humid air.
Steady-state reading under instantaneous pulsation
Fully enclosed and isolated movement guard
Energy Absorption of High Pressure Shock Wave
Precision Maintenance of Low Loss Moving Parts
Used for pump station system integration to ensure that the system pressure monitoring readings remain accurate and reliable in the vibration environment caused by the high-speed operation of the pump.
in large-scale agricultural or garden irrigation network, the product can adapt to the outdoor extreme temperature difference and wind and rain erosion, and provide long-term pressure monitoring scheme.
specially used for pressure monitoring of automatic sprinkler system to prevent false alarm caused by slight pressure pulse in pipeline and improve the accuracy of safety assessment.
In standard industrial environment, the expected service life can reach 5-8 years. Accuracy calibration is recommended every 12 months. Please make sure to install it vertically when using it, and open the air valve on the top of the meter according to the instructions after installation to ensure accuracy.
Provide 24-hour technical selection support to assist in matching thread specifications and measuring ranges. All products are provided with an 18-month long warranty. Non-human leakage or accuracy exceeding the standard during the warranty period is provided with free replacement service.
Fast Q&A Center. We provide quick answers to your questions.
A: This is the normal design. 10%-15% of the space is left at the top as an air buffer layer, which is used to cope with the thermal expansion and contraction of the liquid caused by the change of ambient temperature, so as to prevent the leakage of liquid caused by excessive internal pressure without affecting the accuracy.
A: Glycerin is a standard configuration and is suitable for environments above -20°C; silicone oil viscosity changes very little with temperature, and is mainly used in extremely low temperature areas below -40°C or occasions where the ambient temperature fluctuates violently.
A: NPT (American standard taper pipe), BSP (British standard pipe thread) or G (flat pipe thread) shall be confirmed according to the field pipe. The most commonly used in industrial fields is 1/4 “NPT or 1/2” NPT, please verify before purchasing.
A: After the installation is completed, it is recommended to cut a small hole in the sealing rubber plug on the top of the case or dial to the “OPEN” position to connect the inside with the atmosphere to eliminate the internal pressure caused by the temperature difference and ensure accurate readings.
A: This product is mainly aimed at water and non-corrosive liquids. If it is necessary to measure strong corrosive medium, it is recommended to use all stainless steel material and install diaphragm sealer (Diaphragm Seal) to protect the instrument.
A: First check whether the top sealing plug is loose. If the leakage is caused by the rupture of the shell, it should be replaced in time, because the instrument will be damaged quickly and lose its accuracy under vibration condition after losing the filling liquid.