Donkin Series 555S Steel Gate Valve, PUR Coated

Flanged Gate Valve to GIS/V7:Part 1. Maximum Working Pressure for DN50 - 16 bar (PN16 flange), 19 bar (ASA 150 flange). For DN400 - 600 - 7 Bar (100 PSGI). Temperature Range: -20°C to +60°C

The large diameter 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 and comes with the new Donkin PUR coating system which allows the valve to be buried without further protection.

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.