DONKIN DUCTILE IRON/POLYETHELENE SOFTSEAL VALVE

PE Ended Gate Valve. Size range 90mm to 400mm. Temperature -10ºC to + 40ºC. Maximum working pressure up to 7bar (dependant on pipe used).

The 555/375 is primarily for the isolation of hydrogen gas (plus blended hydrogen or natural gas) underground when fused in line on the PE main distribution system. The factory applied Donkin PUR coating system means the valve can be buried without further protection. Full traceability of materials and test records are available on request. Manufactured and approved to specification GIS/V7-1.
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.