Category
Product Detail
Bellow Seal Forged Gate Valve
Teji Valve manufactures forged steel Bellow Sealed Gate Valves in three kinds bonnet design—Bolted Bonnet, Welded Bonnet and Pressure Sealed Bonnet.
- category :Forged Gate Valve
- Email :teji@teji-valve.com
- Phone :+86-577-67354000
- fax :+86-577-67354001
PRODUCT INTRODUCTION
Teji Valve manufactures forged steel bellow sealed gate valves in three kinds bonnet design—Bolted Bonnet, Welded Bonnet and Pressure Sealed Bonnet.
With the rapid development of chemical industry, nuclear industry and other modern industries, the number of pipes with radioactive media is increasing. Valves used in these lines and installations have special requirements for leaky seals, the use of general packing sealing device has been unable to meet the requirements. Therefore, a bellows stem seal is required.
The opening and closing part of this bellow seal forged gate valve is a plug shaped disc with a flat or conical sealing surface and the disc moves in a straight line along the center line of the fluid. The bellow seal forged gate valve is often used in situations where the stem seal is required to be tight, such as in high vacuum applications and in the nuclear industry.
CONSTRUCTION FEATURES
-
Forged Steel, Outside Screw and Yoke, Rising Stem;
-
Non-Rising Handwheel, Integral Backseat;
-
Solid Wedge, Renewable Seat Rings, Spiral Wound Gasket;
-
Reduced Bore or Full Port;
-
Socket Welded, Threaded, Butt Welded, Flanged End.
APPLICATION STANDARD
-
API 602, ASME B16.34, BS 5352
-
Testing according to API 598
-
Marking to MSS SP25
-
Socket Welded Ends to ASME B16.11
-
Screwed Ends to ASME B1.20.1
-
Butt Welded Ends to ASME B16.25
-
Flanged Ends to ASME B16.5
STRUCTURE
DIMENSIONS (MM) AND WEIGHTS (KG)
|
NPS |
Conv. |
3/8" |
1/2" |
3/4" |
1" |
1-1/4" |
1-1/2" |
2" |
| Full |
|
3/8" |
1/2" |
3/4" |
1" |
1-1/4" |
1-1/2" | |
|
L |
79 |
79 |
92 |
111 |
120 |
152 |
172 | |
|
H(OPEN) |
220 |
220 |
225 |
244 |
321 |
321 |
347 | |
|
W |
100 |
100 |
100 |
125 |
160 |
160 |
180 | |
|
Weights |
Bolted |
3.2 |
3.0 |
4.8 |
7.9 |
11.0 |
16.8 |
25.2 |
|
Welded |
3.0 |
2.8 |
4.8 |
7.0 |
9.6 |
13.5 |
20.2 | |
DATA TABLE
|
NO. |
Part Name |
CS to ASTM |
AS to ASTM |
SS to ASTM |
|
|
Type A105 |
Type A182 F22 |
Type A182 F304 | Type A182 F316(L) | ||
|
1 |
Body |
A105 |
A182 F22 |
A182 F304(L) |
A182 F316(L) |
|
2 |
Disc |
A276 420 |
A276 304 |
A276 304(L) |
A276 316(L) |
|
3 |
Gasket |
Corrugated SS + graphite |
SS + PTFE | ||
|
4 |
Bonnet Bolt |
A193 B7 |
A193 B16 |
A193 B8 |
A193 B8M |
|
5 |
Stem |
A182 F6 |
A182 F304 |
A182 F304(L) |
A182 F316(L) |
|
6 |
Bellow Pipe |
SS |
|||
|
7 |
Bonnet |
A105 |
A182 F22 |
A182 F604(L) |
A182 F316(L) |
|
8 |
Stem Packing |
Flexible Graphite |
PTFE | ||
|
9 |
Pin |
A276 420 |
A182 F304 | ||
|
10 |
Gland |
A276 420 |
A182 F304 | ||
|
11 |
Gland Eyebolt |
A193 B7 |
A193 B16 |
A193 B8 |
A193 B8M |
|
12 |
Gland Flange |
A216 WCB |
A351 CF8 | ||
|
13 |
Gland Nut |
A194 2H |
A194 4 |
A194 8 |
A194 8M |
|
14 |
Bearing Washer |
SS |
|||
|
15 |
Yoke Nut |
A276 410 |
|||
|
16 |
Nameplate |
SS |
|||
|
17 |
Handwheel |
A197 |
|||
|
18 |
H.W.Nut |
A194 2H |
A194 4 |
A194 8 |
A194 8M |
|
Suitable Medium |
W.O.G.etc |
W.O.G.etc |
HNO3,CH3OOH etc | ||
|
Suitable Temp. |
-29~425 deg C |
-29~550 deg C |
-29~180 deg C | ||
NOTE: Other materials are available upon request.
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