FORGED BELLOW SEAL GATE VALVE, FBGT-F FLANGED ENDS

DN 15 - DN 50
150# / 300#
  C.S S.S Low temp.
T min. -29°C -29°C -29°C
T max. +425°C +538°C +425°C

Available on request :

  • Special Corrosion resistant materials for :
    Complete Valve, Bellows and Trim
  • Optional Full Port design upto DN40.
  • Optional Flanged end with large groove, large tongue and RTJ end.
  • Optional valve with CE marking size above DN25.
  • Optional valve with High Pressure Ratings.



Component Materials
C.S S.S Low temp.
FBGT - F - CS FBGT - F - SS FBGT - F - LT
Body & Bonnet A105 F316 / F304 LF2
Wedge SS410 / CA15 + HF CF8M / CF8 + HF SS304 + HF
Seat Ring SS410 + HF SS316 / SS304
+ HF
SS304 + HF
Bellow SS316Ti / SS321 SS316Ti / SS321 SS316Ti /
SS321
Top/Bottom
Bellow collar
SS316 / SS321 SS316 / SS321 SS316 / SS321
Stem SS410 SS316 / 304 SS304
Hand Wheel Nut Carbon Steel SS304 SS304
Gland Bush SS410 SS316 / 304 SS304
Gland Flange CS / A105 SS316 / 304 SS304
Packings Graphite / PTFE
Yoke Sleeve SG Iron/NI Resist / 416*
Eye Bolt/Nut Carbon Steel SS 316 / 304 SS304
Hand Wheel Cast Iron
Cylinder A106 Gr. B A312 TP316 / 304 A312 TP304
End Flange A105 SS316 / 304 LF2

* Available on request

Testing Pressure in bar (API 598) :

Materials A105 & LF2 F316/F304
150# 300# 150# 300#
HYDRO SHELL 30 77 29 75
SEAT 22 57 21 55
AIR SEAT 07 07 07 07

Dimensional Details :

DN L H
closed
ØD ØC Cv Weight
(approx.)
[mm] [mm] [mm] [mm]   [kgs]
150# 300# 150# 300#
15 108 140 237 100 9 7 3.5 4.5
20 117 152 266 100 12 14 4.5 5.5
25 127 165 288 100 17 30 6.5 7.5
32 140 178 420 150 23 85 11.5 12.5
40 165 190 422 150 28 100 12.5 13.5
50 178 216 500 150 36 160 17 18

Forged Bellow Seal Gate Valve, with flanges acc. to ASME B 16.5, face to face as per ASME B16.10 and with ACME stem screw thread and grounded shaft. Multiply bellow with long service life made of stainless steel.Min. life cycle of Bellow tested for 10,000 cycles, metal back seat, safety stuffing box packing made of pure graphite/PTFE.

Carbon steel : Body and Bonnet made of forged material A 105, seat ring hardfaced with stellite, wedge made of SS 410/CA15, hardfaced with stellite.
Stainless steel : Body and Bonnet made of forged material A 182 GR F316/F304, seat ring hardfaced with stellite, wedge made of CF8M/CF8, hardfaced with stellite.
Low temperature carbon steel : Body and Bonnet made of Forged material A 350 GR LF2 , seat ring hardfaced with stellite, wedge made of CF8/SS 304, hardfaced with stellite.