PWP311 HVAC Pressure Sensor

Name: PWP311 HVAC Pressure Sensor
Brand: Pokcenser Automation Technology Company Limited

PWP311 is a compact brass-bodied HVAC sensor with a ceramic core, broad refrigerant compatibility and durability rated to 10 million load cycles for refrigeration equipment.

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Applications

HVAC systems
Residential and commercial air conditioning
Refrigeration compressors
Chillers and refrigeration units
Refrigerant pipeline systems
Air-source heat pumps and automation

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Key Features & Advantages

10 Million Load-Cycle Endurance

The highly reliable ceramic sensing element tolerates up to 10 million load cycles with nearly constant accuracy, supporting long service life.

Sealed Brass Housing

A fully sealed brass housing provides waterproof and impact-resistant protection in compact installations and cost-sensitive refrigeration equipment.

Common Refrigerant Compatibility

Compatible with R12, R22, R410A, R507 and other general refrigerants, simplifying sensor selection across common cooling and air-conditioning systems.

Flexible Electrical and Process Connections

The Packard connector supports two- or three-wire outputs, while 7/16-20 UNF, G1/4, 1/4 NPT and G1/2 pressure ports can be customized.

Electrical and Temperature Protection

Two-times overvoltage protection and 0-50°C temperature compensation improve electrical resilience and measurement stability across changing HVAC operating conditions.

Video

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File Name

Time

Type

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PWP310 Series-Pressure-Datasheet-POKCENSER-V2024

Sep 08, 2026

PDF

Technical Data

Model	PWP311
Pressure Type	Relative (gauge) /Absolute pressure
Pressure Range	-0.1MPa～0MPa …5MPa
Accuracy	±0.5%FS
Safe Overload	200%FS
Burst Pressure	300%FS
Electrical Connection	Packard Connector
IP Rating	IP65
Signal Output	4-20mA0.5-4.5V/0-5V/0-10V
Power Supply	10-30VDC/5VDC/8-24VDC/12-30VDC
Working Temperature	-40℃~+80℃
Medium Compatible	R12, R22, and other refrigerants
Long-term Stability	≤0.5%FS/year
Repeatability	≤0.1%FS
Process Connection	7/16-20UNF female, 1/2" -20UNF, M20x1.5, G1/4" , 1/4" NPT, female and male optional
Housing Material	Brass, SUS304

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