A351 CF8 304 Bellow Seal Control Valve Supplier in India
Bellow Seal Valves contain a rising stem, non rising handwheel, yoke and yoke cap, one piece bonnet forging, flanged or forged ends, grease nipple with lubricant baking, packing gland, long bellows, bonnet and the seats. The valve is essentially a gate valve which is supported but the bellows. The long rising stem goes all the way from inside valve body to the hand wheel. The Bellow Seal Gate Valves are used in high pressure systems and are connected to the pipes with flanged connections. The connection can also be by means of socket, welded or NPT threaded ends of the pipes. There are different type of bellow seal valves which are not gate valves. The Bellow Seal Globe Valves use a globe with opening on one horizontal axis which aligns with the pipes to open the valve and then against the pipes to close the valve.
Stainless Steel Bellow Seal Ball Valve
A351 CF8 304 Bellow Seal Control Valve
SS 304 Bellow Seal Needle Valve
View Bellow Seal Valves Price, Leading Supplier of bellow seal gate valves.
The valves can be made up of different material grades such as 304, 316, stainless steel, cast iron, carbon steel and ductile iron material. The different components of the Bellow Seal Safety Valves can be made up of different material grades as well. There are control valves, safety valves and check valves in this type of valves. The Bellow Seal Check Valves can range in size and dimensions according to different API standards. The size of the valves can range from ½ inches to 48 inches and the pressure ratings vary according to the size and standards as well. The applications are in water, oil and gas, petroleum, petrochemical, chemical and food processing industrial applications.
Table of Content
| Size | 50NB — 600NB |
|---|---|
| Pressure | 150PS1 |
| Temperature | 0 Deg C - 1200 Deg C. |
| Body , Chest | Solid One piece casting of Cast Iron Fg 260, Cast Steel Gr WCB ,CF8,CF8M. |
| Seat | Integral to Body, Soft, Optional. |
| Gate | AISI SS 304,316,316L,317,317L |
| Screw Spindle | AISI SS 410,304,316. |
| Nut | Brass |
| Yoke | Plate type of MS . |
| Gland Follower | Cast Iron , Cast steel , Ductile Iron ,CF8,CF8M. |
| Hand Wheel | Cast Iron , Cast steel , Ductile Iron |
| Gland Packing | PTFE , PTFE Impregnated |
| Ends | Lugged |
| Port | STANDARD [Round], Optional V Port, Diamond Port,. |
- Design : ASME B16.34 / BS 5352 / API 600 / BS 1873 / API 602
- Face to End : DN 3202
- End to End: BW / Flanged
- End Flange : ASME B16.5 / DIN / BS / IS
- TestAPI 598 / BS 6755
- Bellow : Inconel / SS / Hast Alloy
- Seat: Metal to Metal / Metal to soft Seat
An accordion-like metal tube fastened to the valve stem and to the bonnet, forming a leak-proof seal with negligible friction. The accordion ribs give the bellows seal valve an ability to stretch and compress with a sliding stem’s linear motion. Since the bellows is an uninterrupted metal tube, there is no place at all for leaks to develop.
Test Pressure in bar (psi) |
||
Pressure rating |
Class 300 |
Class 150 |
| Hyd. Shell | 31 |
78 |
| Seat | 23 |
58 |
Air Seat |
← 7 → |
|
Materials |
|
Body / Bonnet / Stuffing Box |
Carbon Steel ASTM A216 Gr. WCB, Stainless Steel ASTM 351 Gr. CF8 / CF8M |
Yoke / Gland Flanges |
Carbon Steel ASTM A216 Gr. WCB |
Seat Ring / Disc Plug Type / Disc Nut |
Stainless Steel ASTM A276 Type 304 / 316 / 410 |
Body Seal |
PTFE / S.W.G. 316 |
Body Stud / Gland Stud |
ASTM A193 Gr. B7 / B8 / B8M |
Gland Packing |
PTFE |
Gland / Spindle / Split Washer |
Stainless Steel ASTM A276 Type 304 / 316 / 410 |
Hand Wheel / Indicator |
S.G.IRON |
Bellow |
Stainless Steel ASTM A276 Type 316 Ti / 321 |
Surface Protection for Carbon Steel Valves |
Prime Coat : Chlorine free with modified alkyd resin, unobjectionable in physiological & toxicological respects, with additional external coating of machine varnish light blue. |
Manufacturers of bellow seal globe and safety valves in India
| Dimensions are in mm (inch) | ||||||||||||||||||||||
| SIZE | ← A CLASS → |
|
|
D1 |
E |
|
||||||||||||||||
| mm | 150 |
300 |
||||||||||||||||||||
15 |
108 |
152 |
322 |
320 |
150 |
150 |
15 |
5.0 |
8.0 |
|||||||||||||
20 |
117 |
178 |
322 |
320 |
150 |
150 |
19 |
6.0 |
9.0 |
|||||||||||||
25 |
127 |
203 |
353 |
357 |
200 |
200 |
25 |
8.0 |
12.0 |
|||||||||||||
32 |
140 |
216 |
380 |
390 |
200 |
200 |
32 |
11 |
15 |
|||||||||||||
40 |
165 |
229 |
460 |
458 |
250 |
250 |
38 |
16 |
27 |
|||||||||||||
50 |
203 |
267 |
498 |
501 |
250 |
250 |
50 |
19 |
36 |
|||||||||||||
65 |
216 |
292 |
530 |
540 |
300 |
300 |
65 |
27 |
43 |
|||||||||||||
80 |
241 |
318 |
635 |
641 |
350 |
350 |
76 |
43 |
51 |
|||||||||||||
100 |
292 |
356 |
737 |
750 |
350 |
450 |
102 |
69 |
72 |
|||||||||||||
150 |
406 |
444 |
850 |
950 |
300 |
152 |
125 |
142 |
||||||||||||||
200 |
495 |
559 |
1000 |
1020 |
300 |
203 |
142 |
175 |
||||||||||||||
250 |
622 |
622 |
1120 |
1130 |
600 |
254 |
195 |
215 |
||||||||||||||
300 |
698 |
711 |
1680 |
1730 |
600 |
305 |
240 |
270 |
||||||||||||||
| Working Pressure | up to 1000 psig (68.9 bar) |
| Temperature Range | –20 to 900° F (–28 to 482°C) |
Stainless Steel 304 Bellow Seal Globe Valve
CF8 Stainless Steel Bellow Seal Gate Valve
CF8M Stainless Steel Bellow Seal Ball Valve
ASTM A351 CF8M 316 Bellow Seal Control Valve
Stainless Steel 316 Bellow Seal Needle Valve
A351 CF8 304 Bellows Valve
| Flow Coefficient | 0.12 to 1.2 |
| Internal Volume | 0.10 to 0.26 in3 (1.6 to 4.3 cm3) |
View bellow seal check valves Pressure Rating, Stockholder of bellow seal needle valve
| Sizes Range | 1/4 to 3/4 in |
| 800 LB. | FULL PORT – BOLTED BONNET | ||||||||
| SIZE inch, mm | 1/4, 6 | 3/8, 10 | 1/2, 15 | 3/4, 20 | 1, 25 | 1 1/4, 32 | 1 1/2, 40 | 2, 50 | |
| A inch, mm | 3.15, 80 | 3.15, 80 | 3.54, 90 | 4.33, 110 | 5, 127 | 5, 127 | 5, 127 | 8.27, 210 | |
| B open inch, mm | 9.05, 230 | 9.05, 230 | 9.64, 245 | 11.22, 285 | 13.19, 335 | 14.96, 380 | 16.42, 417 | 20.87, 530 | |
| C inch, mm | 3.46, 88 | 3.46, 88 | 3.46, 88 | 3.82, 97 | 5.43, 138 | 5.43, 138 | 5.43, 138 | 6.77, 172 | |
| F inch, mm | .31, 8 | .38, 9,6 | .55, 14 | .71, 18 | .94, 24 | 1.18, 30 | 1.44, 36,6 | 1.89, 48 | |
| G inch, mm | 1.26, 32 | 1.26, 32 | 1.50, 38 | 1.89, 48 | 2.20, 56 | 2.52, 64 | 3.07, 78 | 3.35, 85 | |
| Weight lb. Bolted B. kg | 6, 2,7 | 6, 2,7 | 6.25, 2,9 | 10, 4,6 | 15.75, 7,2 | 22, 10 | 28.25, 12,8 | 48.5, 22 | |
| Weight lb. Welded B. kg | 5, 2,3 | 5, 2,3 | 5.5, 2,5 | 8.25, 3,8 | 13.5, 6,2 | 18.5, 8,4 | 24.5, 11,2 | 44, 20 | |
| PACKING | BH2 | BH2 | BH2 | BH4 | BH5 | BH6 | BY5 | BH8 | |
| GASKET* | G2 | G2 | G2 | G3 | G4 | G6 | G7 | G9 | |
| 1500 LB. | FULL PORT – BOLTED BONNET | |||||
| SIZE inch, mm | 1/2, 15 | 3/4, 20 | 1, 25 | 1 1/2, 40 | 2, 50 | |
| A inch, mm | 4.33, 110 | 5, 127 | 5, 127 | 8.27, 210 | 9.05, 230 | |
| B open inch, mm | 13.98, 355 | 14.96, 380 | 17.72, 450 | 21.65, 550 | 23.23, 590 | |
| C inch, mm | 5.43, 138 | 5.43, 138 | 6.77, 172 | 9.21, 234 | 12.6, 320 | |
| F inch, mm | .55, 14 | .71, 18 | .94, 24 | 1.44, 36,6 | 1.89, 48 | |
| G inch, mm | 1.89, 48 | 2.20, 56 | 2.52, 64 | 3.35, 85 | 3.74, 95 | |
| Weight lb. Bolted B. kg | 11, 5 | 15.5, 7 | 21, 9,5 | 51.75, 23,5 | 88, 40 | |
| Weight lb. Welded B. kg | 10, 4,5 | 14.25, 6,5 | 18.25, 8,3 | 48.5, 22 | 81.5, 37 | |
| PACKING | BH5 | BH6 | 2B4 | 2B5 | 9B8 | |
| GASKET* | G2 | G3 | G4 | G7 | G8 | |
Primary stem seal of Bellow Seal Valves is Metallic Bellow While Piston Valves have Piston ring
Stem Leakage is Not Possible since Metallic Bellows. While in Piston valve it Occurs as soon as the rings wear out
Check bellow sealed Stop Valve and Control valves Price List.
- Stringent fugitive emission Laws
- Environment Protection Laws
- Air Purification or Clean Air Act.
- Greenhouse Effect Prevention Bill
- Energy conservation Law