Check Valve

Model / Series: AN-V-ZH005

Check valve for automatic backflow prevention protecting pumps, equipment and instruments.

Bore: DN15–DN1000
Other: Fully automatic non-return, no actuator; swing/lift; carbon/stainless; high-temp/pressure, well-sealed, maintenance-free
Range: Pressure class PN10–PN100
Medium: Liquids, gases, steam — general fluids
Installation: Flange, wafer, threaded, welded; horizontal/vertical

Function

The check valve is an automatic protection valve that opens and closes automatically by the media's own flow pressure, specifically preventing backflow, reverse flow and water hammer, automatically protecting pipeline equipment, pumps and instruments for stable single-direction operation of the whole process line.

Features & Advantages

Fully automatic sensing with no manual operation, sensitive response and thorough non-return. Simple structure, wear- and pressure-resistant, well-sealed, leak-free and maintenance-free. It effectively protects downstream equipment and control instruments and reduces line failures — an essential safety fitting and a must-have for overseas projects.

Applications & Industries

Fits all fluid piping in chemicals, water, oil & gas, power, district heating, environmental and pharma, widely used at pump outlets, equipment inlets/outlets and branch lines for backflow protection overseas.

Models & Options

Swing, lift, horizontal and vertical types; carbon steel and stainless steel; flange, threaded and wafer mounting; high-temperature/pressure, anti-corrosion and explosion-proof; overseas standard customization and batch export.