H41H forged steel lift check valve

A valve that controls the one-way flow of medium in a pipeline
Lifting check valve refers to the automatic opening and closing of the valve flap relying on the flow of the medium itself, which is used to prevent the backflow of the medium, also known as the check valve, check valve, counterflow valve, and back pressure valve. Check valve belongs to an automatic valve, its main function is to prevent the media backflow, to prevent the pump and drive motor reversal, as well as the container media discharge. The check valve can also be used to supply lines to auxiliary systems where the pressure may rise above the system pressure.
Chinese Name
H41H Cast steel lift type check valve
Design and manufacture
API6D, GB/T12235
Flange dimensions
ASMEB16.5, JB/T79
Pressure temperature
ASMEB16.34, GB/T9131

Product Overview

The product is strictly designed and manufactured according to GB/T12235, API standards. The lift check valve is one of the important links in the production process adjustment system, which is the valve that controls the one-way flow of the medium in the pipeline and prevents the backflow of the medium. The valve flap is positioned along the center for lifting movement, and the bushing is made of special materials with good wear resistance and small friction coefficient. The action is flexible and reliable, and the sealing performance is excellent. Products are widely used in petroleum, chemical, pharmaceutical, electric power industry and other working conditions of the pipeline. [1] Before production and shipment must go through strict air tightness test, the traditional method with oil and water as a medium detection efficiency is low, XL-500A-V use air as an effective air tightness test, efficiency is faster than the traditional oil and water detection, zero pollution, is widely used in industrial production.

Manufacturing standards

Design and Manufacture: API6D, GB/T12235
Flange size: ASMEB16.5, JB/T79
Pressure temperature: ASMEB16.34, GB/T9131
Structure length: ASMEB16.10, GB/T12221
Inspection and test: GB/T13927, JB/T9092