Non Slam Type Check Valve

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Non Slam Type Check Valve

Non Slam Type Check Valves are designed and manufactured in accordance with latest international standards like API 6D, API 608 and BS 5351 to provide highest safety, efficiency and accuracy.

The “INVENT” Ball Valves are economically priced and designed to last. These Valves provide exceptional performance in even the most stringent applications found in the Oil & Gas industry and other industries. We offer a wide range of elective seat and seal materials.

We are ManufacturingNon Slam Type Check Valves  in Single Piece; Two-Piece & Three-Piece cast steel constructions. These Valves are manufactured to the highest possible quality standard. Many of our threaded and socket weld Ball Valves are manufactured according to the ASME B16.34 design standard. These valves provide the exceptional performance in even the most stringent applications found in the Oil & Gas industry and other industries. We manufacture high quality Trunnion mounted Ball Valve which are manufactured under, for more information contact us right now.

Features:
  • Spring Closing arrangement for the prevention of reverse flow in pipe lines
  • These Valves are general purpose valves that are stronger, lighter and smaller than conventional swing check valve and there before, less expensive to install and maintain
  • Suitable for higher pressure / temperature (up to 400°C)
  • It can be Mounted in any plane / direction
  • Extremely low opening pressure
  • Available Sizes 15mm to 150mm suitable for PN6 / PN-40 and ANSI 150/300
Pressure & Temperature Rating
  • Tested as per API-598
  • Maximum Body Design PN-40
  • Maximum operating Pressure 40 Kg/Cm²
  • Weight and dimensions are same for class 150 & class 300 Valves
  • Valve are Self centering type
  • zero leakage for soft seated valves.
  • The maximum permissible leakage rate shall be 3 cubic centimeter per minute per inch of nominal pipe size for metal seated valves
  • Design as per Manufacturing Standard
  • Testing : as per API:598
  • Maximum operating Temperature 300°C
  • Maximum Cold Hydraulic Test Pressure 60Kg/Cm²
  • Maximum Operating Temperature 50°C
View PDF

Materials Of Construction

Body
CF8 / CF8M / F304 / F316 / F304L / F316L
Disc
CF8 / CF8M / F304 / F316 / F304L / F316L
Spring
Standard Spring
Seat
Metal to Metal Seated Construction
Materials of Construction
PART NO. PART NAME A 105 LF2 LF3 F304 F316 F11 F22
01 Body Bonnet ASTM A105 A350 Gr. LF2 A350 Gr. LF3 A 182 Gr. F304 A 182 Gr. F316 A 182 Gr. F11 A 182 Gr. F22
02 Disc ASTM A105 A350 Gr. LF2 A350 Gr. LF3 A 182 Gr. F304 A 182 Gr. F316 A 182 Gr. F11 A 182 Gr. F22
03 Seat Ring A 182 Gr.F6a A 182 Gr.F6a A 182 Gr.F6a A276-304 A276-316 A276-410 A276-410
04 Stem A276-410 A276-410 A276-410 A276-304 A276-316 A276-410 A276-410
05 Gland Flange A 216 WCB A 216 WCB A 216 WCB A351Gr.CF8 A351Gr.CF8M A 216 WCB A 216 WCB
06 Bolts A193 B7 A320 L7 A320 L7 A193 B8 A193 B8 A193 B16 A193 B16
07 Nuts A193 B7 A320 L7 A320 L7 A193 B8 A193 B8 A193 B16 A193 B16
08 Packing Graphoil Rings
09 Gasket S.S.304 / S.S.316 Spiral wound Gasket with Grafoil Filler
10 Hand Wheel Ductile or Malleable Iron
PART NO. PART NAME CF8 CF8M F304 F316 F304L F316L
01 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
02 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
03 Seat Ring S.S.304 / S.S.316 (Inconal)
04 Spring Washer AISI 304 / AISI 316
PRIMARY SERVICE RATING & TEST PRESSURE
Class Working Pressure Hydraulic Test Pressure
Body Seat Temp.
PN 40 40 Kg/Cm² 77 Kg/Cm² 56 Kg/Cm² 300°C