Donkin Series 555S Steel Gate Valve, PUR Coated
Flanged Ends, PN7/PN16
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
Description
Key Features
- High integrity coating for buried service. Maintenance free.
- Soft seal, positive shut off
- Full double block and bleed with pressure relieving plug
- Clear bore for under pressure drilling operations
- Metal to metal secondary seal
- “Flange feet” to aid installation and stockholding
- No lubrication required
- Double ‘O’ Ring stem seal
- Lifting lugs on all sizes
- Embodied Carbon Data available upon request
- Options:
- Pressure point/by-pass bosses cast into the valve as standard. These can be drilled and plugged at our factory if required
- Alternative flange drilling
- Gear box
- Electric/pneumatic actuation
Information
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.
| Variant 555/103-002 | |
|---|---|
| Connection: | Flanged |
| Material: | Cast Steel |
| DN: | DN50 – DN600 |
| PN: | PN 7 |
| Closing direction: | Clockwise to Close |
| 1. | Body and bonnet | Cast steel GP240GH A216 |
| 2. | Stem | Stainless steel |
| 3. | Gate | Cast iron GJL-250 |
| 4. | Seal | NBR |
| 5. | Pressure relief plug | Steel 11SMn30 (EN1A) |
| 6. | Bonnet gasket | CNAF |
| 7. | Fasteners | Stainless steel A2-70 |
Test/Approvals
- Tested according to EN12266-1
- Approved according to KITE MARK GIS/V7-1
- Made in Great Britain
- CE / UKCA marked according to Pressure Equipment Directive
Standards
- Designed according to GIS/V7 Part 1
- Face to face according to EN 558 Table 3 Basic Series 3
- Standard flange drilling to EN1092 (ISO 7005-2), PN 16
Additional information
| Reference No. | 555-050-00-01333040, 555-400-00-01333340, 555-450-00-01333340, 555-600-00-01333340, 555-600-00-01333352 |
|---|---|
| Brand | Donkin |
Reference Nos. and Dimensions
| Ref. no. | DN
mm |
H3
mm |
H
mm |
HF
mm |
BR
DN |
L
mm |
Turns
to open |
Theoretical
Weight kg |
| 555-050-00-01333040 | 50 | 371 | 280 | 289 | RP0.5 | 178 | 9 | 23 |
| 555-400-00-01333340 | 400 | 1235 | 867 | 925 | RP0.75 | 406 | 36 | 378 |
| 555-450-00-01333340 | 450 | 1335 | 947 | 1010 | RP0.75 | 432 | 40 | 461 |
| 555-600-00-01333340 | 600 | 1680 | 1189 | 1252 | RP0.75 | 508 | 52 | 925 |
| 555-600-00-01333352 | 600 | 1643 | 1215 | 1182 | RP0.75 | 508 | 52 | 935 |
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