Boiler Accessories and Mountings

3. Check Valves

Class available Sizes
150# 1” to 30”
300# 1” to 24”
600# 1” to 20”
900# 1” to 12”
1500# 1” to 12”
2500# 1” to 8”

gate-valve

A). NON RETURN VALVE (SWING TYPE)

Technical details & features

  • Face to face : ANSI B 16.10.
  • End connection : Flange end as per ANSI B 16.5 & 26.
  • I.B.R certification on request.
PART NAME WCB WC6 WC9 C5 C12 LCB LCC CF8 CF8M
Body A 216
WCB
A 217
WC6
A 217
WC9
A 217
C5
A 217
C12
A 352
LCB
A 352
LCC
A 351
CF8
A 351
CF8M
Cover A 216
WCB
A 217
WC6
A 217
WC9
A 217
C5
A 217
C12
A 352
LCB
A 352
LCC
A 351
CF8
A 351
CF8M
Disc ASTM A 216 Gr. WCB + 13% Cr. Facing
Seat Ring A105 A 182
F11
A 182
F22
A
182F5
A 182
F9
A 350
LF2
A 350
LF2
Integral
Hinge Pin ASTM A 216 Gr. WCB + 13% Cr. Facing
Disc Hinge ASTM A 216 Gr. WCB ASTM A 351 Gr.
CF8 / CF8M
Cover Gasket S.S.304 / S.S.316 Spiral Wound Gasket with Graphoil Filler PTFE
Cover Stud & Nuts ASTM A 193 Gr. B7 / ASTM A 194 Gr. 2H A193 B16,A194
Gr.4/7

B). Wafer type check Valve

Size Range: 1” to 42”

Technical details & features

  • Design Standard :API:6D, API:594
  • Leakage Class : Class VI (Zero Leakage)
  • Face to Face : API:594
  • Mounting Between : ANSI B 16.5 / BS 10 Table / DN / IS
  • Suitable for horizontal and vertical mounting.

gate-valve

PART NAME MATERIAL
Body Cast Iron (IS:210 Gr. Fg. 220) / Cast Steel (ASTM A 216 Gr. WCB), S.S. ASTM A 351
Gr. CF8 / CF8M
Disc Cast Iron (IS:210 Gr. Fg. 220) / Cast Steel (ASTM A 216 Gr. WCB), S.S. ASTM A 351
Gr. CF8 / CF8M
‘O’Ring Nitrile/EPDM/Viton/Silicon/PTFE
Hinge Pin AISI 304 / AISI 316

C). Non slam check valve

Size Range: ½” to 6” suitable for PN6 / PN-40 and ANSI 150/300

Technical details & features

  • Design Standard : API:598 / BS:5146
  • Piping Standard : BS:10 Table E & H,PN-16,PN-25 & PN-40
  • Suitable for higher pressure and temperature up to 400 deg Celsius.

gate-valve

PART NAME CF8 CF8M F304 F316 F304L F316L
Body ASTM A
351 Gr. CF8
A 351
CF8M
ASTM A 182
Gr. F304
ASTM A 182
Gr. F316
ASTM A 182
Gr. F304L
ASTM A 182
Gr. F316L
Disc ASTM A
351 Gr. CF8
A 351
CF8M
ASTM A 182
Gr. F304
ASTM A 182
Gr. F316
ASTM A 182
Gr. F304L
ASTM A 182
Gr. F316L
Seat Ring S.S.304 / S.S.316 (Inconal)
Spring Washer AISI 304 / AISI 316

D). Dual plate check valve

Size Range: ½” to 12”

Technical details & features

  • Design Standard : API:594 / API 6D
  • Face to Face : API:594
  • Twin plate, flat seat design for efficient sealing
  • Can be installed horizontally, vertically or in an incline

gate-valve

PART NAME MATERIAL
Body Cast Iron (IS:210 Gr. Fg. 220) / ASTM A 216 Gr. WCB
Disc ASTM A 351 Gr. CF8 / CF8M / G.M
Hinge Pin AISI 304 / AISI 316
Plug AISI 304 / AISI 316
Stop Pin AISI 304 / AISI 316
Spring AISI 304 / AISI 316 / Inconnel
Bearing AISI 304 / AISI 316