Donkin Reduced Bore Ball Valves PN7
Screwed Both Ends
Andy Hatton
National Sales Manager – Gas
Screwed Ball Valve to GIS/V4 SG Iron Pressure range: 7 Bar (100psig). Temperature range: -10°C to +50°C
The Series 451, gas service isolation valve, screwed end, is a high quality ball valve for the isolation of gas services
to domestic and commercial premises. Designed to meet the requirements of GIS/V4.
| Variant 451/50-001 | |
|---|---|
| Connection: | Internal Thread |
| Material: | Ductile Iron |
| DN: | DN20 - DN50 |
| PN: | PN 7 |
| Closing direction: | Clockwise to Close |
Features
- Screwed BS21 taper internal thread branch connections in ¾” to 2” sizes.
- Maintenance free compact design.
- High integrity, one piece SG iron body.
- Corrosion resistant construction.
- High torque design to prevent unauthorised operation.
- 19mm square false cap as standard.
- Kitemark™ approved to GIS/V4.
- Seal in false cap skirt to prevent ingress of dirt.
- Where covered by the requirements of the Pressure Equipment Directive these products are produced in full compliance and carry CE marking (dependant up size).
Options
- Available with factory fitted PE tailpieces PE80/PE100 or combination of PE/screwed connections
- Extra long PE tailpieces.
- Option of 25mm false cap.
- Option of Double Block and Bleed on 2”.
- Option of lever operation.
Downloads
Datasheet
Certificate(s)
Installation, Operation & Maintenance
Guidelines
Price list
Reference nos. and dimensions:
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| Ref. no. | Size Inch |
D mm |
Dd mm |
H mm |
H3 mm |
L mm |
W mm |
Theoretical weight/kg |
|---|---|---|---|---|---|---|---|---|
| 451-002-05-511 | 36 | 11.5 | 56 | 74 | 84 | 36 | 0.4 | |
| 451-003-05-511 | 44 | 14.5 | 58 | 80 | 99 | 44 | 0.9 | |
| 451-005-05-511 | 60 | 20 | 76 | 106 | 125 | 60 | 1.5 | |
| 451-006-05-511 | 77 | 30 | 69 | 107.5 | 146 | 77.5 | 2.2 |
Enquiry
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Components
| 1. | Body | Ductile iron GJS-400-15 |
| 2. | Ball | Stainless steel |
| 3. | Seat | PTFE 15% Graphite |
| 4. | O-ring seal | NBR rubber |
| 5. | Stem | Stainless steel |
Test/Approvals
- CE marked according to Pressure Equipment Directive
- Approved according to Kitemark™ GIS/V4 KM 518471
- UKCA marked according to Pressure Equipment Regulations
Standards
- Designed according to GIS/V4
