Vertical Check Valve refers to a valve that relies on the flow of the medium itself to automatically open and close the valve disc to prevent medium backflow, also known as Non‑return Valve, One‑way Valve, Counterflow Valve, and Back Pressure Valve. Check Valve is an automatic valve whose main functions are to prevent medium backflow, prevent the pump and drive motor from reversing, and prevent the discharge of medium in the container. Check Valve can also be used on pipelines that supply supplementary fluid to auxiliary systems where the pressure may rise above the system pressure. Check Valves can be mainly divided into Swing Check Valves (rotating by center of gravity) and Lift Check Valves (moving along the axis).

Function of Vertical Check Valve

The function of this type of valve is to allow the medium to flow in only one direction and prevent reverse flow. Usually, this type of valve works automatically: under the pressure of the fluid flowing in one direction, the valve disc opens; when the fluid flows in the reverse direction, the fluid pressure and the self‑aligning valve disc act on the valve seat, thereby cutting off the flow.

Product Features

1. Advanced and reasonable sealing pair matching. The sealing surfaces of valve disc and valve seat are hard‑faced with iron‑base alloy or Stellite cobalt‑base hard alloy.

2. Designed and manufactured in accordance with standards, supporting various piping flange standards and flange sealing types.

Technical Parameters of Vertical Check Valve

Specification: 1/2"-4" (DN15--DN100mm)

Design Standard: ASME B16.34

Material: WCB, CF8 (SS304), CF8M (SS316), SS201

Wall Thickness Standard: ASME B16.34, GB12224

Pressure: 1000WOG/PN63

Inspection Standard: API 598, EN12266

Main Parts Material

Main Performance Parameters

Main Connection Dimensions & Weight (1.6MPa)

Main Connection Dimensions & Weight (2.5MPa)

Main Connection Dimensions & Weight (4.0MPa)