DONKIN CAST IRON/POLYETHELENE SOFTSEAL VALVE
PE Ended, PUR Coated, St St Spindle. GIS/V7:Part 1
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
Reference nos. and dimensions:
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 |
555-315-63-77033040 | RP0.75 | 277 | 1172 | 686 | 220 | 906 | 315 | 361 | 17 | PE100 | 27 | 260 |
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 |
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, certificate KM 518241
- Made in Great Britain
Standards
- Designed according to GIS/PL3, GIS/V7 Part 1