745X Multifunctional water pump control valve

Product Overview

The multi-functional pump control valve is a diaphragm-type hydraulic control valve that utilizes the pipeline's inherent hydraulic pressure as its driving force. When the pressure upstream exceeds the downstream pressure, the valve opens fully; when downstream pressure surpasses upstream pressure, the valve rapidly closes to prevent backflow and protect the pump. This valve integrates delayed opening, rapid closing, and delayed closure with water hammer elimination, eliminating system pressure fluctuations. It is widely used at pump outlets.

For applications requiring unidirectional isolation of zones, prevention of backflow, mitigation of system pressure fluctuations, and protection against water hammer effects.

Product Features

System pressure-driven—valves operate independently, utilizing pipeline energy for energy efficiency and environmental protection;

The dual-chamber design features low energy consumption. Upon pump activation, it facilitates rapid and full-range opening of the main valve, minimizing water flow loss while ensuring smooth operation without pressure fluctuations, thereby providing effective protection for the diaphragm.

Smooth operation—The valve opening and closing speeds can be adjusted according to actual operating conditions, eliminating system pressure fluctuations and water hammer effects, achieving truly silent performance.

The direct-flow channel-valve employs a direct-flow channel design, offering high flow capacity and minimal water loss. It reduces the occurrence of harmful flow patterns such as turbulence, thereby minimizing cavitation risks.

Long-pitch guidance—the valve stem employs long-pitch guidance, ensuring smooth movement without any clearance or jamming.

Technical Parameter

Model: 745 X

Design and manufacturing standard: CJ/T 167-2002

Nominal pressure: 1.6 MPa

Shell test pressure: 2.4 MPa

Media temperature: 0–80°C

Connection type: Flange connection

Connection standard: GB/T 9119-2000

Design and manufacturing standard: CJ/T 167-2002

Nominal pressure: 1.6 MPa

Shell test pressure: 2.4 MPa

Media temperature: 0–80°C

Connection type: Flange connection

Connection standard: GB/T 9119-2000

Applicable medium: water

structure size 

Material List