DONKIN COKE OVEN VALVE
Outside Screw/ Rising stem
Suitable for working pressures of: 650mm to 900mm (26” to 36”) sizes 0.35 bar (5psig) Over 900mm (36”) 0.25 bar (3.5psig) Maximum Working Temperature: -10°C to 250°C
Description
Key Features
- Clear bore for under pressure drilling applications.
- Adjustable packed gland.
- Hard faced wedge seats with viton ‘O’ rings.
- Asbestos free jointing.
- Cleaning cover and draining points.
- Embodied Carbon Data Available upon request
- Options:
- Internal/external screw versions are available.
- Can be fitted with water sealing facility.
- Sizes up to 1200mm (48”) available upon request
- Additional tapping points for cleaning/jetting.
Information
The Series 662 is a cast iron, double-faced internal or external screw, solid wedge gate valve. Designed specifically for use on Coke Oven Plants, the outside screw version is suitable for duties where it is necessary to isolate the screw threads from the gas flow. To ease the operation of the larger valves, thrust bearings are fitted to the spindle collars or bushes and, in addition on horizontally mounted valves, rollers can be fitted to the valve door.
| Variant 662/00-001 | |
|---|---|
| Material: | Cast Iron |
| DN: | DN675 – DN1000 |
| Closing direction: | Clockwise to Close |
| 1. | Cast iron GJL-250 | |
| 2. | Spindle | Carbon steel |
| 3. | Spindle nut | Cast iron GJL-250 |
| 4. | Spindle bushing | Cast iron GJL-250 |
Standards
- Designed according to BS5150, Designed according to EN 12266
Test/Approvals
- Made in Great Britain
Additional information
| Reference No. | 662-0675-00-0760, 662-0750-00-0660, 662-0900-00-14630174, 662-1000-00-0362 |
|---|---|
| Brand | Donkin |
Reference Nos. and Dimensions
| Ref. no. | DN
mm |
H3
mm |
HC
mm |
HO
mm |
L
mm |
L11
mm |
Turns
to open |
W
mm |
Theoretical
Weight kg |
| 662-0675-00-0760 | 675 | 2876 | 2412 | 3158 | 600 | 381 | 29 | 1010 | 737 |
| 662-0750-00-0660 | 750 | 3027 | 2493 | 3305 | 600 | 406 | 32 | 1075 | 916 |
| 662-0900-00-14630174 | 900 | 3664 | 3002 | 3977 | 914 | 470 | 39 | 1270 | 1800 |
| 662-1000-00-0362 | 1000 | 3963 | 3321 | 4396 | 914 | 508 | 42 | 1388 | 1934 |
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