The new Donkin Ductile Iron Gate Valve sets a new quality benchmark for the global Gas market.

Introducing the 555/401 Ductile Iron Softseal Valve for Gas. 29-09-2021

Donkin gas valves have been manufactured in the UK for over 170 years and are used on gas networks all around the world. 

The Donkin Series 555 Softseal Gate Valve has been the preferred valve in the UK Gas Distribution Sector for over 50 years and has been supplied into Egypt for around 40 years. 

Whilst there have been minor modifications and upgrades over the years, it keeps its’ basic original and successful design. This variant, the Donkin Series 555/401 Softseal Valve is a double-faced, resilient seat, internal screw, clear bore wedge gate valve, designed primarily for the isolation of natural gas and manufactured gas.  It is designed and Kitemarked according to GIS/V7-001.

AVK have worked with the Egyptian Gas Industry to incorporate new preferred features to the valve to ensure the Series 555 maintains its technical superiority well into the future.

New features include:-

  • an advanced new ergonomic, lighter weight design for improved handling and installation.
  • full ‘Clear Bore’ design for high performance application.
  • globally proven ‘Double Block and Bleed’ functionality, which excels the current industry standard.

Setting the Standard.

At AVK UK and Bryan Donkin Valves Ltd, we’re proud to say that quality is built into all our products, from the initial concept, through design and right through the manufacturing process at our factory in Chesterfield, United Kingdom.

AVK was the first in the gas distribution sector to achieve the international quality standard ISO/TS 29001:2011 for the entire design-to-delivery gas valve manufacturing process.

AVK is also certified to ISO 9001 quality management and ISO 14001 for environmental management.

Our valves are all approved to UK Gas Industry Standards (GIS) and certified to the BSI Kitemark scheme. Other relevant international standards are complied with where appropriate including the European Pressure Equipment Directive (PED).


See all of our certificates here


Technical Information

NEW 555/401 Ductile Iron Gate Valve

Click here for the technical information about the 555/401- certificate, datasheet, operating instructions and guidelines and more

555/401 Donkin Ductile Iron Gate Valve

555/401 Ductile Iron Gate Valve

Setting a new quality benchmark for the global Gas market. Features and benefits.
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