angle lift check valveANGLE LIFT CHECK VALVES

Angle lift check valves produce low pressure drop due to flow when fully opened. It´s flow coefficients are comparable to those of tilting disc and only slightly lower than provided many swing check valves.


Angle lift check valves are available assembled with bolted bonnet or with pressure seal bonnet,  that allows high pressure service. The main feature about the pressure seal bonnet is that the body-bonnet joints seals improves as the internal pressure in the valve increases, compared to other constructions where the increase in internal pressure tends to create leaks in the body-bonnet joint.

Internal pressure forces the bonnet upwards against the gasket, creating forces in the contact areas between the gasket and the bonnet. As pressure increases, leaks probability decreases, because of the tightening of the contact surface between the gasket and the body. The area where the body is in contact with the joint is covered by stainless steel, improving surface’s quality and avoiding corrosion issues.


Our angle lift disc check valves are forged of cast carbon, alloy and stainless steel, bolted joint within the cap and the body, renewable or welded seats, tilting disc seal. Other materials are available upon request.