Lug Type Knife Edge Gate Valve

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Wafer Type Disc Check Valve

Lug Type Knife Edge Gate 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 Manufacturing Lug Type Knife Edge Gate 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.

Special Features:
  • The Prime Make Knife Gate Valve is an Uni-Directional Wafer Type Valve Designed As per MSS–SP-81 and TIS 405-8 for Industrial Service Applications.
  • The Design of the Body & Seat Assures Non-Clogging Shut Off on Suspended Solids in Industries Such as:-
  • Pulp and Paper
  • Waste Water Treatment Plants
  • Food & Beverage
  • Power Plants
  • Chemical Plants
  • Mining
Note:
  • In Conformance with ASME B16.5, Class 150 for Size DN50 through 600 and as per ASME B16.47 Series for A for Sizes > DN600
  • TOLERANCES: - Face to Face - NPS 10 (DN250) & Smaller = ±1.6mm & for NPS 12 (DN 300) and Larger = ±3.2mm
  • Flange outside Diameter - (±1.6mm)
  • Bolt Circle Diameter - (±1.6mm)
  • Center to Center of Adjacent Bolt Holes - (±0.8mm)
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Design & Testing Standard

Design & Mfg. Standard
API:6D, API:594
Testing Standard
API:598
Leakage Class
Class VI (Zero Leakage)
Face to Face
API:594
Mounting Between
ANSI B 16.5 / BS 10 Table / DN / IS
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
NO. PARTS DESCRIPTION QTY.
01 Body WCB 1
02 Gate S.S. 304 1
03 Gland Packing PTFE 3
04 Gland Bush WCB 1
05 Shaft SS 304 1
06 Yoke M.S. 2
07 Stem Nut (Bush) Gun Metal 1
08 Wheel S.G. Iron 1
09 Fasteners M.S. ==
DN BAR
50 – 600mm 10.3
750 – 900mm 6.9