Exploring the AVK Donkin 555 range: versatile gate valves for gas distribution

Posted: 23 October 2024

AVK Donkin Series 555 range banner image

PE Pipeline Specialists is proud to stock a comprehensive selection of high-quality valves for gas distribution networks. In this blog, we focus on three exceptional products from the AVK Donkin 555 range: the standard Softseal Gate Valve, the Firesafe Softseal Gate Valve, and the PUR-coated Gate Valve.

Each of these valves offers unique features designed to meet specific needs in gas distribution systems, and we are here to break down the finer details of each of these products.

AVK Donkin 555 benefits
AVK Donkin Softseal Gate Valve 555/401 Datasheet

AVK Donkin Softseal Gate Valve 555/401

The standard 555/401-003 model is a versatile workhorse for natural and manufactured gas isolation. Key features include:

  • Double-faced, resilient seat design with a clear bore wedge gate
  • Suitable for pressures up to 7 bar MOP and temperatures from -10°C to +60°C
  • Full double block and bleed facility with a pressure-relieving plug
  • Maintenance-free design with self-supporting “flange feet” for easy installation
  • Stainless steel spindle and twin pack black epoxy coating (minimum 75 microns)
  • Available in sizes from DN50 to DN300

This valve is perfect for general gas distribution applications, offering reliability and ease of use in a wide range of situations.

AVK Donkin Firesafe Softseal Gate Valve Datasheet

NEW PRODUCT: AVK Donkin Firesafe Softseal Gate Valve

The Firesafe model 555/401-004 steps up to the plate when it comes to safety performance. This valve shares many features with the standard model but includes critical enhancements for fire-risk environments:

  • Tested and approved as resistant to high temperatures
  • Can be installed inside occupied buildings, remaining leak-tight in the event of fire
  • Utilises the tried-and-trusted Donkin metallic wedge design
  • Low closing/breaking torque for easy operation by a single person
  • Graphite body/bonnet joint with metal-to-metal secondary seal
  • Available in sizes from DN50 to DN150

The Firesafe model is ideal for installations where fire safety is a primary concern, such as in or near buildings or in industrial settings.

AVK Donkin Series 555 Ductile Iron Gate Valve Datasheet

AVK Donkin Series 555 Ductile Iron Gate Valve

For underground installations, the PUR-coated 555/401-002 model offers superior corrosion protection. The product also features:

  • High-integrity PUR coating system for buried service with a 20-year warranty
  • No need for additional wrapping of the valve body
  • Clear bore design suitable for under-pressure drilling operations
  • Fully corrosion-resistant construction
  • Integral lifting lugs on valves 25kg and above
  • Available in sizes from DN50 to DN300

This valve is the go-to choice for underground gas distribution networks where long-term reliability and corrosion resistance are essential.

Common features across the range

All three valves in the 555 range share several important features:

Whether you need a standard valve for everyday use, a firesafe option for high-risk areas, or a corrosion-resistant valve for underground applications, the AVK Donkin 555 range has you covered.

At PE Pipeline Specialists, we are committed to providing the best solutions for your gas distribution needs. Contact us today to discuss which 555 range valve is right for your project. To keep up with the latest news from PE Pipeline Specialists, you can follow us on LinkedIn.

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