HVAC System Instrumentation

-- Steady & Reliable Manufacturer --

Brief Description

Our instrumentation for HVAC (Heating, Ventilation, and Air Conditioning) systems is designed for reliability and accuracy in managing fluid and air pressures and temperatures crucial for energy efficiency and comfort control in buildings.

In-depth Overview

HVAC systems require precise monitoring, typically involving low-pressure capsule gauges for duct static pressure, compound gauges for refrigeration lines, and bi-metal thermometers for chillers and hot water circuits. These instruments must withstand varying ambient conditions and provide clear, often color-coded, indications for quick system health checks. Our range includes durable gauges and sensors built for quick installation and long-term, stable performance in both commercial and industrial HVAC infrastructure.

Specification

Parameter	Details
Gauges Type	Refrigeration, Low Pressure Capsule, Water Service
Thermometer Type	Bimetal, Industrial glass
Pressure Units	psi, bar, kPa, inH2O
Connection Type	1/4′′ or 1/2′′ NPT or BSPT
Case Material	Black Steel, Stainless Steel, ABS Plastic
Temperature Range	−40∘C to 150∘C (typical HVAC range)
Refrigerant Compatibility	R134a, R410a, R22, etc.
Installation Style	Panel Mount, Back Mount, Stem Mount

Applications

Chillers and Boilers: Monitoring water circulation pressure and temperature in heating and cooling loops.
Refrigeration Units: Compound gauges for vacuum pull-down and pressure monitoring of refrigerant lines.
Air Ducts and Filters: Low pressure gauges or transmitters for monitoring air flow and filter pressure drop.
Pumps and Compressors: Indicating system pressure and suction pressure at key points in the fluid circuit.

Key Advantages

System-Specific Scales: Refrigeration gauges feature specialized scales for common refrigerants, simplifying diagnostics.
Corrosion Resistance: Stainless steel options for wet or exterior condenser environments.
Energy Efficiency Support: Accurate measurement helps optimize system performance and reduce operational costs.
Durability: Instruments are built to handle the constant on/off cycling of cooling and heating systems.

Payment and Shipping

We offer flexible payment options including T/T, L/C, and Net 30 terms for bulk HVAC distributors. As these are high-volume, standard products, we ensure fast order fulfillment (typically 5−10 business days). We use efficient freight methods, including palletized and shrink-wrapped packing, to minimize shipping costs for large OEM and distributor orders globally.

Frequently Asked Questions

Q: Why is a specialized refrigeration gauge better than a standard pressure gauge?
A: Refrigeration gauges include multiple temperature rings (color-coded) corresponding to the saturation temperatures of common refrigerants. This allows technicians to instantly correlate the measured pressure with the refrigerant's phase-change temperature, simplifying charging and diagnostics.

Q: Are the low-pressure gauges sensitive enough for duct work?
A: Yes. Our low pressure capsule gauges are specifically designed to measure pressure in inches of water column (inH2O), which is the standard unit for the very slight static pressures and draft found in air ducts.

Q: Can I use an adjustable angle thermometer in an HVAC system?
A: Adjustable angle thermometers are excellent for HVAC as they allow technicians to rotate the dial to the most readable position, improving safety and reducing reading errors, especially in confined equipment rooms.

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HVAC System Instrumentation 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.