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gate valve manufacturers in ahmedabad

Gate Valves Manufacturers in India

Bolted Bonnet Cast Carbon, Stainless or Alloy Steel
Size: 2" -24", ASME Class: 150# -600#

Design Features

  • Trims: 13% Cr stem-wedge in CA 15 or 13 Cr faces, and CoCr alloy faced seat API trip 8 suitable for applications up to 850 F (454 C).
  • Flexible wedge with center stem-wedge contact in solid CA 15 (13Cr) or hand faces with 13 Cr, SS 316 Monel or CoCr alloy. Wedge is ground and lapped to a mirror finish and tightly guided to prevent dragging and seat damage.
  • Non-rotating with precision acme threads and burnished finis. Double acme for faster operation.
  • Body and bonnet joint accurately machined. Spiral wound with different grade of material.
  • Body and bonne casting are precision machined. One-piece bonnet up to NPS 12 (DN 300) for better allignment and fewer parts.
  • Flanges: Finish 125-250 AARH for all valves. ASME Classes 150-300: 2mm raised face. ASME Classes 600-up: 7mm taised face
  • RTJ available on client requirement.
  • Roatating stem nut is austenitic ductile iron Gr.D-2C renewable inline.

Standard Materials

Parts Materials
Body WCB CF8 CF8M
Bonnet WCB CF8 CF8M
Stem SS 410 SS 304 SS 316
Wedge CA 15 or 13Cr faced CF8 CF8M
Seat 13% Cr. or Steel CoCr Alloy Faced CoCr Alloy Faced
Packing Flanged Carbon Steel Stainless steel Stainless Steel
Gland Bushing Carbon Steel Stainless steel Stainless steel
Packing ring Graphite
Gland Stud Gr. B7 Gr. B8 B8M
Gland Nut Gr.2H Gr.8 Gr.8M
Boby/Bonnet Nut Gr.2H Gr.8 Gr.8M
Body/Bonnet Stud Gr.B7 Gr.B8 B8M
Back Seat SS 410 SS 304 SS 316
Gasket Class 150: Corrugated Steel / Graphite
Class 300 - 1500: Spiral Stainless Steel / Graphite
Key Carbon Steel
Yoke Bushing Carbon Steel Stainless Steel Stainess Steel
Handwheel Nut Malleable Iron or Steel
Handwheel Malleable Iron or Ductile Iron
Name Plate Stainless Steel
Stem Nut A 439 Austenitic Ductile Iron Gr. D-2c

Design Specifications

Item Applicable STD.
Wall thickness and general design = NPS 24 API 600, ISO 10434
Wall thickness and general design > NPS 24 ASME B16.34
Pressure Temperature Rating ASME B16.34
Face-to-Face dimensios for butt weld and flanged valves ASME B16.10
Testing Standard API 598
Flange Design ASME B16.5
Butt Welding Design ASME B16.25
Materials ASTM

Gate Valve Dimensions

Dimensional Details As Per ANSI 150 # Class
Size 2" 2 1/2" 3" 4" 6" 8" 10" 12" 14" 16" 18" 20" 24"
F to F 178 191 203 229 267 292 330 356 381 406 432 457 508
OD 150 180 190 230 280 345 405 485 535 595 635 700 815
THK 17.5 20.7 22.3 22.3 25.4 28.6 30.2 31.8 33.4 35 38.1 41.3 46.1
RFD 92 105 127 157 216 270 324 381 413 470 533 584 692
PCD 121 139.7 152 191 241 299 362 432 476 540 578 635 749
od 19.1 19.05 19.1 19.1 22.2 22.2 25.4 25.4 28.6 28.6 31.8 31.8 34.9
NOH 4 4 4 8 8 8 12 12 12 16 16 20 20
Dimensional Details As Per ANSI 300 # Class
Size 2" 2 1/2" 3" 4" 6" 8" 10" 12" 14" 16" 18" 20" 24"
F to F 216 241 282 305 403 419 457 501 762 838 914 990 1143
OD 165 190 210 255 320 380 445 520 585 650 710 775 915
THK 20.7 23.9 27 30.2 35 39.7 46.1 49.3 52.4 55.6 58.8 62 68.3
RFD 92 105 127 157 216 270 324 381 413 470 533 584 692
PCD 127 149.2 168 200 270 330 387 451 514 572 629 686 813
od 19.1 22.2 22.2 22.2 22.2 25.4 28.6 31.8 31.8 34.9 34.9 34.9 41.3
NOH 8 8 8 8 12 12 16 16 20 20 24 24 24