AVK Donkin Softseal Gate Valve

Ductile iron flanged gas gate valve Kitemark approved to GIS/V7-1. Temperature -10°C to +60°C. MOP 7bar

The Mark 4 Series 555 Softseal Valve is a double-faced, resilient seat, internal screw, clear bore wedge gate valve. It is designed primarily for the isolation of natural gas and manufactured gas. This 555/411 variant is configured with narrower face to face dimension (DIN 3202, F4) and is lighter in weight to enable easier incorporation into gas Above Ground Installations. Suitable for blended hydrogen*.
The Donkin 555 softseal gas valves are manufactured with the tried and trusted Donkin metallic wedge used for over 50 years on the gas networks. A true wedge design, the gate seals on both machined faces with an embedded nitrile seal in each face which sit completely outside the flow of gas with the valve open.
• The design gives effective and long term sealing on closure and the closing torques remain relatively low over the valve’s design life.
• The low closing / breaking torque means operators don’t risk over exertion / injury. Can be easily closed by a single person with standard equipment.
• Negates the need for manual handling risk assessment.