Puhui brand AX742X safety relief pressure holding valve

Introduction to AX742X Safety Relief Pressure Holding Valve

AX742X safety relief pressure holding valveGenerally installed on pipelines of high-rise buildings, fire water supply systems, and other water supply systems, when the pressure in the water supply pipeline exceeds the set pressure of the pressure relief valve, the pressure relief valve automatically opens to quickly release pressure, protecting the safety of the pipeline. It can also be used as a pressure holding valve to ensure the water supply pressure upstream of the main valve. Being able to accurately maintain a constant safety setting pressure, once overpressure occurs, the pressure relief valve quickly opens to release pressure in a timely manner. Close smoothly and reliably, eliminate pressure residual waves.

Safety relief pressure holding valve does not require power supplyIt can work without the need for duty, with fully automatic pressure relief. Automatically release water and pressure when the set pressure value is reached. After the pressure relief reaches the set safe value of the pipeline, the pressure relief will automatically stop and the pipeline pressure will be maintained. The pressure relief range is 0.2MPa to 1.4MPa.

Main parameters of AX742X safety relief pressure holding valve

Nominal pressure: 1.0MPa-1.6MPa-2.5MPa;

Specification caliber: DN40 to DN600;

Medium temperature: 0 to 80 degrees;

Applicable media: water, reclaimed water;

Connection form: flange;

Shell material: cast iron;

Flange standard: GB/T17241.6 GB/T9113；

Test standard: GB/T13927，Ap1598。

Supply scope of AX742X safety relief pressure holding valve

1. Specification caliber, minimum DN40 DN50， The maximum caliber is DN600. Other larger calibers require customization. The caliber mentioned here is expressed in millimeters, referring to the inner diameter of the safety relief pressure holding valve and the corresponding pipeline, which is also the inner diameter of the pipe. When selecting the caliber for installation, it is generally based on the inner diameter of the pipeline, and there are rarely cases of diameter change. The pressure levels in the specifications are 1.0MPa, 1.6MPa, and 2.5MPa. When making a purchase, it is necessary to refer to the maximum pressure standard of the pipeline design.