Gas and Air Service Gauges

-- Steady & Reliable Manufacturer --

Brief Description

Our Gas and Air Service Gauges are precision instruments built specifically for measuring pressure in systems carrying dry, non-corrosive gases, including air, nitrogen, argon, and natural gas.

In-depth Overview

These gauges are differentiated by their material safety and calibration. They typically use a copper alloy Bourdon tube and connection, which is cost-effective and chemically compatible with dry, inert gases. For safety reasons, specific gauges like Acetylene or Oxygen service gauges require highly regulated cleaning processes and may have different connection materials (e.g., stainless steel for Oxygen) to prevent ignition risks. Our standard air service gauges are ubiquitous in pneumatic control, tire filling equipment, and low-pressure gas pipelines.

Specification

Parameter	Details
Media Compatibility	Air, Nitrogen, Argon, other inert gases (non-corrosive)
Wetted Parts	Copper Alloy (Brass/Bronze) or Stainless Steel 316L
Pressure Range	0 to 1.6 bar up to 0 to 400 bar
Case Size	40mm, 50mm, 63mm, 100mm
Accuracy Class	Class 2.5 or 1.6 (commercial/industrial grade)
Mounting	Bottom, Back, U-Clamp Panel Mount
Special Requirement	"WIKA Clean" or equivalent for Oxygen service
Gauge Filling	Dry or Silicone Oil Filled (if high vibration)

Applications

Pneumatic Control Panels: Monitoring supply pressure and regulated pressure for valves and actuators.
Welding and Cutting Systems: Installed on regulators for inert gas (Argon, CO2) supply monitoring.
Air Compressors: Indicating tank pressure and discharge line pressure.
Gas Distribution Networks: Low-pressure measurement of natural gas lines in residential and commercial settings.

Key Advantages

Cost-Effective: Copper alloy construction provides economical accuracy for non-corrosive media.
Ready for Use: Wide availability of standard ranges and sizes for immediate integration.
Safety Compliant: Specific models meet stringent cleanliness standards for use with pure or reactive gases (like Oxygen).
High Visibility: Clear dials with metric and imperial units suitable for global use.

Payment and Shipping

Standard payment methods include T/T and Western Union. As these are often high-turnover items, we maintain substantial inventory, ensuring quick dispatch times, often within 3−5 business days. We utilize lightweight, protective cartons and bulk logistics to offer the most competitive freight costs for international gas equipment suppliers and distributors.

Frequently Asked Questions

Q: Why is it dangerous to use a standard gauge on Oxygen service?
A: Standard gauges may contain residual oil, grease, or flammable debris. When exposed to high-pressure pure oxygen, these contaminants can spontaneously ignite, causing a fire or explosion. Oxygen gauges must be specially cleaned and certified ("Oxygen Service Clean").

Q: What type of gauge is best for highly corrosive gases like Chlorine?
A: Corrosive gases require the use of materials like Monel or Stainless Steel 316L, often integrated with a diaphragm seal to isolate the gauge mechanism entirely, similar to the requirements for the chemical industry.

Q: Can these gauges be calibrated for different gas densities?
A: Pressure gauges measure force per unit area, independent of gas density. However, if the gauge is intended to measure liquid level (like a DP level transmitter), then fluid density must be input into the calculation/calibration.

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Gas and Air Service Gauges Manufacturers

Wuxi Huihua Special Instrumentation Co., Ltd. was established in December 2001, the registered capital is 5 million yuan, the existing staff of more than 50 small and medium-sized joint-stock enterprises.
The company specialises in the production of various types of special instruments, alternative to the localisation of imported instruments.To seismic pressure gauge, seismic electric contact pressure gauge, stainless steel pressure gauge, diaphragm corrosion-resistant pressure gauge, marine pressure gauge and other series as the main products. On the basis of field instruments, we have developed various kinds of pressure transmitters, pressure controllers, digital pressure gauges and so on. There are more than 30 series and 3000 specifications. Products are widely used in petroleum, chemical, paper, metallurgy, mining, chemical fibre, electric power, food, environmental protection, rubber and plastic, hydraulics and many other industries, and more than 2,000 domestic customers to establish a friendly relationship with the national large and medium-sized enterprises to establish a good partnership, won the majority of users praise, and set up a corporate brand image.