vrvalves.com

Gate Valve

Specification
  • Outside screw rising stem construction, threads are away from the line fluid and easy to lubricate.
  • Removal of hand wheel from the yoke sleeve would not cause wedge gate to fall down yoke sleeve and hand wheel assembly is so arranged in the yoke of bonnet.
  • Back seat ring features facilitate repacking of the stuffing box on line with the valve in fully open position.
  • Swinging eyebolt facilitate easy access to the stuffing box.
  • Seat ring screwed and welded into the body.
  • Stellited wedge & seat ring can also be offered on special request.
  • Body & bonnet made from high quality casting.
  • The valves of higher pressure and bigger sizes are provided with gear drive arrangements and flange also can be offered for different standards.
GATE VALVE


MATERIAL OF CONSTRUCTION : 150 / 300 Class
Sr.
Part Name
Carbon Steel to ASTM Alloy Steel to ASTM Stainless Steel to ASTM


Type WCB Type LCB Type WC6 Type CF8 Type CF8M Type CF3 Type CF3M
1.
Body
A126 WCB A352 LCB A217 WC6 A351CF8 A351CF8M A351CF3 A351CF3M
2.
Bonnet
A216 WCB A352 LCB A217 WC6 A351CF8 A351CF8M A351CF3 A351CF3M
3.
Wedge
A216 WCB / 13% Cr. A351 CF8 A217 WC6 / 13% Cr. A351CF8 A351CF8M A351CF3 A351CF3M
4.
Seat Ring
Facing A351 CF8 Facing Integral
5.
Stem
AISI 410 AISI 304 AISI 410 AISI 304 AISI 316 AISI 304L AISI 316L
6.
Gland
AISI 410 AISI 304 AISI 410 AISI 304 AISI 316 AISI 304L AISI 316L
7.
Back Seat
AISI 410 AISI 304 AISI 410 Integral
8.
Gasket
Compressed Asbestos of Soft Iron
9.
Packing
Graphited Asbestos
PTFE Imprigrated Asbestos
10.
Studs
A193 B7


A193 B8

11.
Nuts
A194 2H


A194 M8


12.
Sleeve



Brass or NI-Resist
13. Handwheel


Malleable Iron
Materials : Type Alloy-20, Monel, Hastelloy B & C on request.


MATERIAL OF CONSTRUCTION : 800 / 1500 Class
Sr.
Part Name
Forged Steel
1.
Body
ASTM A 105
2.
Bonnet
ASTM A 105
3.
Wedge
13% Cr. Steel
4.
Stem
13% Cr. Steel
5.
Seat Ring
13% Cr. Steel
6.
Gasket
Spiral Wound
7.
Gland Bush
13% Cr. Steel
8.
Gland Flange
Carbon Steel
9.
Yoke Sleeve Nut
Carbon Steel
10.
Hand Wheel
Carbon Steel
11.
Studs
ASTM A 193 B 7
12.
Nuts
ASTM A 194 2 H
Materials : Type ASTM A 182 - F 304 / ASTM A 182 - F 316


APPLICABLE STANDARDS

150 / 300 Class
800 / 1500 Class
Mfg. Std.
BS 1414 / API 600
BS 5352 / API 602
Face to face
ASME B 16.10
ASME B 16.10
Testing Std.
BS 6755 / API 598
API 598
HYDRAULIC TEST PRESSURE
Class Body Seat
150 425 PSIG 300 PSIG
300 1100 PSIG 800 PSIG
800 3000 PSIG 2000 PSIG
1500 5500 PSIG 4060 PSIG

ASME 150 CLASS

SIZE A B C D E F G
25 127 14 51 108 79 4 16
40 165 14 73 127 98 4 16
50 178 16 92 152 121 4 19
65 190 17 105 178 140 4 19
80 203 19 127 190 152 4 19
100 229 24 157 229 190 8 19
125 254 24 186 254 216 8 22
150 267 25 216 278 241 8 22
200 292 28 270 343 298 8 22
250 330 30 324 406 362 12 25
300 356 32 381 483 432 12 25


ASME 300 Class

SIZE A B C D E F G
40 191 21 73 156 114 4 22
50 216 22 92 165 127 8 19
65 241 25.4 105 190 149 8 22
80 283 29 127 210 168 8 22
100 305 32 157 254 200 8 22
150 403 37 216 318 270 12 22
200 419 41 270 381 330 12 25
250 457 48 324 444 387 16 29
300 502 51 381 521 451 16 32


ASME 800 Class

SIZE L SW D C Thread B 600 Class L1
15 87 21.7 9.5 NPT 165
20 90 27.1 12.7 NPT 190
25 105 33.8 12.7 NPT 216
40 128 48.6 12.7 NPT 241
50 142 61.1 16 NPT 292


ASME 1500 Class

SIZE L SW D C Thread B
15 103 21.7 9.5 NPT
20 140 27.1 12.7 NPT
25 140 33.8 18 NPT
40 160 48.6 32 NPT

Contact Us

Address:
A-21/A-22, S.P.6,
Maruti Industrial Estate,
Opp Naroda Fire Station,
Naroda Road,
Ahmedabad - 382345.
Phone: (079) 22202001
Fax: (079) 22203911
E-mail: info@vrvalves.com