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Manual Knife Gate Valve


Manual Knife Gate Valve

We provide premium quality Manual Knife Gate Valve that can be availed in different grades. We are recognized as one of the Manual Knife Gate Valve Suppliers in India.

Characteristic
  • Easy to install and operate
  • Durable
  • Provide high performance

Sizes : 15 to 450 mm (1/2” to 18”)

Materials used for making the body valve : Cast Iron, Carbon Steel, Stainless Steel etc.

Design
As per design standard MSS SP-68 PN-10 Rating

Operation
  • Hand Wheel Operation
  • Chain Wheel Operation
  • Pneumatic Operation Bevel Gear Operation
  • Hydraulic Operation Lever Operation
  • Electric Motor Operation

Drilling
As per
  • BS : 10 : 1962 - Table 'E' 'D' or 'F'
  • PN-10
  • ANSI B. ‘l6.5
  • ASA Flanges
  • Any other specifications as per requirement of customers

Testing
Body hydrostatic testing : conforms to MSS SP-68 up to 600mm ; proprietary norms for higher sizes.

  • Tough, No-corrosive Trims : The stainless steel inner body is welded to cast iron gland. The gland's poly-vinyl chloride coating provides maximum resistance to corrosion and wear.
  • Precision-buffed stainless steel knife plate : The stainless steel knife plate is precision-buffed for tight shut-off. Its Knife-like edge cuts off and shuts off even heavy or high-viscous fluids.
  • A choice of three different seat rings : In addition to the standard stainless steel seat ring, rubber and Teflon seat ring are available as option. Choose the one best for your fluid control requirements.
  • Plane valve seat to resist build-up : The plane surface of the valve seat has no recesses to harbor heavy fluid deposists that could build-up and swamp the valve.
  • Leaktight multilayer gland packing : The gland packing is Teflon-impregnated asbestos or vegetable yarn layered with moulded silicon rubber. This chemical-resistant packing provides total sealing.
  • Bosses for positive seating : Two bosses are welde to valve seat. These press the knife plate snugly against the side of the seat ring for bubble-tight shut-off.
  • Smooth handwheel opening/ closing : The double-thread screw on the stem makes opening/ closing smooth and speedy.

Applications
  • Pulp and Paper Industry
  • Thermal Power Plants
  • Suger Mills
  • Textile Industry
  • Sewage Plants


Technical specifications

Design ASME B16-34
Rating ANSI 150 to 2500
Face to Face ISA S.75.03 1985 upto 600 above 600 ISA S.75.16 900
End Connection Flanged, Screwed, Butt Weld, Socket weld etc
Bonnet Standard upto 250oC.
Normalizing (Finned) betn 250oC to 500oC,
Extended cold service -20oC to - 200oC,
Extended Bellows seals
Gland Packing Grafoil / PTFE V Rings
Seat Leakage As per FCI-70-2 (ANSI B 16.104) Class III. IV, V and VI (STANDARD LEAKAGE RATES ) Metal to Metal Seating Class IV, Less than 0.01% of rated Cv. Metal to Soft Seating - Bubble tight (Zero Leakage)