First, forged steel globe valve overview
Forged
steel globe valve has three kinds of bonnet design, the first is the
bolt-type bonnet, connected by concave and convex surface, using
stainless steel with flexible graphite spiral wound gasket, ring can
also be used on request connection, and the second is welded bonnet ,
Through the threaded seal after welding, can also be used directly on
demand rigid welding, the third is a self-sealing valve cover, threaded
and self-sealing valve cover connection.
Second, forged steel globe valve structure type
1, full diameter or reduced diameter;
2, rod with a bracket;
3, self-aligning at both ends of the packing pressure sleeve;
4, with wound gasket seal type valve cover, threaded seal type valve cover, or Self-sealing bonnet
5, body inverted seal;
6, socket welding ANSI / ASME B16.11;
7, the threaded end (NPT end) according to ANSI / ASME B1.20.1.
Third, forged steel globe valve parts materials
| Serial number | Part Name | CStoASTM | AStoASTM | SStoASTM | |
| A105 | F22 | F304 (L) | F316 (L ) | ||
| 1 | Body | A105 | A182F22 | A182F304 (L) | A182F316 (L) |
| 2 | Disc | A276420 | A276304 | A276304 (L) | A276316 (L) |
| 3 | Valve stem | A182F6 | A182F304 | A182F304 (L) | A182F316 (L) |
| 4 | Gasket | 316 clip flexible graphite | 316 Clamp PTFE | ||
| 5 | cap | A105 | A276f304 | A276F304 (L) | A276F316 (L) |
| 6 | bolt | A193B7 | A193B16 | A193B8 | A193B8M |
| 7 | Pin | A276420 | A276 304 | ||
| 8 | Packing pressure sleeve | A276410 | A182F304 (L) | A182F316 (L) | |
| 9 | Easter bolt | A193B7 | A193B16 | A193B8 | A193B8M |
| 10 | Packing platen | A216WCB | A351CF8 | ||
| 11 | Nut | A1942H | A1944 | A1948 | A1948M |
| 12 | Stem nut | A276410 | |||
| 13 | fasten the screw nut | A1942H | A1944 | A1948 | A1948M |
| 14 | Nameplate | SS | |||
| 15 | Handwheel | A197 | |||
| 16 | filler | Flexible graphite | PTFE | ||
| Suitable media | Water, steam, oil and so on | Water, steam, oil and so on | Nitric acid, acetic acid and so on | ||
| proper temperature | -29 ° C to 425 ° C | -29 ° C to 550 ° C | -29 ℃ ~ 200 ℃ | ||
Note:
1, other materials customer needs can also be used. Sealing fabric pairing specified by the customer within the code.
2, CS = carbon steel; AS = alloy steel; SS = stainless steel;
Fourth, forged steel globe valve size (mm) and weight (kg)
|
NPS |
Reduced diameter |
3/8 " |
1/2 " |
3/4 " |
1" |
1 1/4 " |
1 1/2 " |
2" |
|
|
Full diameter |
3/8 " |
1/2 " |
3/4 " |
1" |
1 1/4 " |
1 1/2 " |
2" |
||
|
L |
79 |
79 |
92 |
111 |
120 |
152 |
172 |
200 |
|
|
H (on) |
166 |
166 |
171 |
207 |
240 |
258 |
330 |
355 |
|
|
W |
100 |
100 |
100 |
125 |
160 |
160 |
180 |
200 |
|
|
weight |
Bolt type |
1.9 |
1.9 |
2.1 |
3.5 |
6.0 |
7.5 |
11.4 |
14.6 |
|
Welded |
1.7 |
1.7 |
1.9 |
3.3 |
5.2 |
6.8 |
10.6 |
13.8 |
|
