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SERIES 81R3/F3 CLASS 600, 800 |
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Ends: Screwed, Socket, and Welding ends |
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Features
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Internally mounted blow-out proof stem |
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Live loaded stem design meets stringent fugitive norms |
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Improved seat for long life and bubble tight shut off |
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Choice of seat material |
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Fire safe and antistatic design confirms to API 607 |
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Designed to handle the most severe services |
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Design standard ISO 17292 and ASME B16.34 |
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| RB : Reduced bore |
FB : Full bore |
| Dimensions are in mm and approximate weight in kg |
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| SIZE |
A |
E |
WEIGHT |
| RB |
FB |
RB |
FB |
RB |
FB |
| 8 |
64 |
64 |
6.0 |
6.0 |
0.7 |
0.7 |
| 10 |
64 |
64 |
6.0 |
9.5 |
0.7 |
0.8 |
| 15 |
64 |
64 |
9.5 |
13.0 |
0.7 |
0.8 |
| 20 |
70 |
75 |
13.0 |
19.0 |
0.8 |
1.3 |
| 25 |
88 |
88 |
19.0 |
25.0 |
1.5 |
1.9 |
| 32 |
105 |
105 |
25.0 |
32.0 |
1.8 |
3.3 |
| 40 |
114 |
114 |
32.0 |
38.0 |
3.1 |
4.1 |
| 50 |
130 |
- |
38.0 |
- |
4.3 |
- |
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Materials of construction
| Body and Tail piece |
Casting: WCB, WCC, LCB, LCC, CF8, CF8M, CF3, CF3M, CD4MCu, CN7M, CD3MN |
| CN3MN, CW6M, and N7M. Other materials on request. |
| Forging: A105, LF2, F304, F316 |
| Ball |
Casting: WCB with ENP, LCB with ENP, CA15, CF8, CF8M, CF3, CF3M, CD4MCu, CN7M |
| CD3MN, CN3MN, CW6M, and N7M. Other materials on request. |
| Bar: 410, 304, 316 |
| Stem and Gland |
410, 304, 316, A20, 31803, Inconel, nickel alloys |
| Seat |
PTFE, RPTFE, nylon, Delrin , PEEK, Devlon, metal |
| Stem washer |
RPTFE |
| Stem seal |
Grafoil, PTFE |
| Body seal |
Grafoil, spiral wound gasket with filler |
| Body stud |
B7, L7, B8, B8M |
| Body nut |
2H, 2HM, 8, 8M |
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