DONKIN CAST IRON/POLYETHELENE SOFTSEAL VALVE

PE Ended, PUR Coated, St St Spindle. GIS/V7:Part 1

AVK UK Gas Sales Andy Hatton

Andy Hatton

National Sales Manager – Gas

PE Tailed Gate Valve to GIS/V7-1 and GIS/PL3 Temperature -10° to +40°. Pressure Rating: PE 80 90 - 180mm 4 bar (60 psig), 250 - 315mm 4 bar or 2 bar

The Series 555 PE Softseal Valve is a double faced, resilient seat, internal screw, full bore, PE Ended Wedge Gate Valve. It is designed primarily for the isolation of natural gas when fused in line on a PE main distribution system and comes with the new Donkin PUR Coat 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.

Variant 555/370-003
Connection: PE Pipe Ends
Material: Cast Iron
DN: DN80 - DN300
PN: PN 5.5
Closing direction: Clockwise to Close

Features

  • High Integrity Coating for buried service with 20 year Warranty.
  • AVK Valve installation tracker.
  • PE ended means no mechanical joints below ground.
  • Full double block and bleed with pressure relieving plug.
  • Double 'O' ring stem seal.
  • Metal to metal secondary seal.
  • Stainless Steel Spindle.
  • Maintenance free.
  • Self-supporting base.
  • Full bore valve
  • PE80 as standard.
  • 90mm to 315mm.
  •  GIS/V7-1 and GIS/PL3
  • Embodied carbon data available upon request.

Options:

  • PE100 tails.
  • Viton seals
  • Extra long length tails
  • PE100 profuse pipe

Downloads

Guidelines
Price list
Product Brochure
Installation, Operation & Maintenance
Datasheet
Certificate(s)

Reference nos. and dimensions:

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Ref. no. BR
DN
Dd
mm
L
mm
H
mm
H2
mm
H3
mm
Pipe dia.
mm
PE Length
mm
SDR
Pipe
Type
Turns
to open
Theoretical
weight/kg
555-090-63-71033040 RP0.5 63 596 287 80 367 90 191 11 PE80 13.5 28
555-125-63-71033040 RP0.5 88 767 302 98 400 125 255 11 PE80 15.5 34
555-180-63-71033040 RP0.75 133 800 390 130 520 180 245 11 PE80 14.5 71
555-250-63-71033040 RP0.75 181 1128 477 152 629 250 391 11 PE80 19 140
555-250-63-75033040 RP0.75 203 1128 477 152 629 250 891 17 PE100/PL 19 140
555-250-63-77033040 RP0.75 203 1128 477 152 629 250 391 17 PE100 19 140
555-250-63-80033040 RP0.75 207 1128 477 152 629 250 391 21 PE100 19 140
555-315-63-79033040 RP0.75 252 1172 686 220 906 315 361 17 PE80 27 260
555-315-63-80033040 RP0.75 252 1172 686 220 906 315 361 21 PE100 27 260
3D drawings
Enquiry
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Components

1. Body Cast iron GJL-250
2. Bonnet Cast iron GJL-250
3. Wedge Cast iron GJL-250
4. Spindle Stainless Steel 1.4305 (303)
5. O-ring NBR rubber
6. Fastenings Steel gr. 8.8, zinc plated, passivated

Test/Approvals

  • Tested according to EN12266-1. Seat: 1.1 x PN (in Bar), Body: 1.5 x PN (in Bar)

  • Approved according to Kitemark™ GIS/V7-1 and GIS/PL3
  • Made in Great Britain

Standards

  • Designed according to GIS/PL3, GIS/V7 Part 1
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