pressure controller/single pressure control single phase differential pressure controller automatic pressure control switch

Adjustable pressure switch for refrigeration water oil gas

Basic Info

Detection Method: Auto
Brand: Huaxi, Wenhan
Motor Power: 2200W
Rated Voltage (V): AC 125V /AC 250V
Max. Voltage: 220V/110V
Max. Current: Refer to Specifications



• Q series single pressure controls can be not only used in fluorinated refrigerant, but also in the air and liquid (allowed liquid temp.     -20 to 120°C)
• Adjustable range and differential settings.
• Renovated SPDT micro-switch ensures the reliable switch function.
• Flexible mounting bracket suits various kids of application.
• Upper lid is optional (IP44)
• Various connections are available on request.
• Automatic and manual reset version
• The material of bellows is copper and pressure interface is brass.
• Several models available in drip-proof enclosure for marine applications or in explosion-proof enclosure for special applications
• CE approval


Our service

1. We have rich experience of OEM, factory can manufacture according to your request.
2. We could also send the goods which is labelling your brand name to your customer's warehouse directly.
3. We can offer you neutral packing without our logo and company information.
4. Warranty: We offer 12 months warranty for all of our products from shipping date;
5. You will enjoy free repair service for failures found within the warranty, if there are any problems of manufacturing quality;
6. We provide paid repair services for instrumentation damages beyond the warranty period or not arising from manufacturing quality problem.


1. What are your main products(Core competence)?
A: Our main products are including Pressure transmitters, Pressure transducers, Pressure sensor, Level Transmitter, Differential pressure transmitter (DP transmitter), Temperature transmitter, Flow meter, Intelligent indicator, Control instrument and etc.

2. Warranty:
A: 12 months warranty for all of our products.

3. What industries are they mainly applied to(Application)?
A: Our products are applying in the fields like food & beverage plant, water and waste water treatment, oil & gas, electric power, scientific research, ocean, boiler, coal mine, forklift weighing system HVAC systems, air condition, fuel pressure measurement and other process control industries.

4. How do you ensure good product quality?(quality control)
A: All products are thoroughly tested in-house with our vast array of calibration and special testing equipment (like Fluke PPC4 (Pneumatic Pressure controller/Calibrators)). Our testing process is conducted in accordance with a strict quality control system.

5. How fast can you deliver goods (Delivery time)?
A: We can provide you short delivery time. Standard products are in stock.
7.What's your MOQ?
A: No MOQ limits, so 1 piece for test purpose at first is acceptable.

6. What detailed information do we need to provide if we want to place an order?
A: Application, medium, medium temperature range, pressure range, output, accuracy, thread type, electric connector and other related parameters.

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