Knife Edge Gate Valve
SAILENT FEATURES:
• Meets design testing standard as per MSS-SP-81 for fully lugged Knife Gate Valves.
• Bolted body and yoke bonnet for easily maintenance.
• Outside screw and yoke construction with thrust bearings.
• Cast stainless steel body with yoke bonnet design.
• Fully lug match ASME B16.5 class 150 with holes tapped.
• Designed to handle slurries, pulp stock and corrosive fluids in process industries.
• “Allines” high quality metal seated Knife Gate Valves with ground knife gates and lapped seating faces have allowable permissible leakage rate.
• Lapped seat ensures tight closure.
• Equally gland follower provide uniform compression of packing.
• Body:- MSS SP-81 requires the valve body to be designed for and hydrostatically pressure tested to 1.5 times the rated working pressure.
No visible leakage when tested body.
• Knife Gate:- MSS SP-81 requires the gate to be designed for and hydrostatically pressure tested to 1.1 times the rated working pressure.
• Seat :- MSS SP-81 has an allowable leakage rate (for metal to metal seated valves) of 40 cc per inch of Diameter, per minute at 40 psi
pressure.
• Grub Screw :- Secured yoke bush in bonnet.
• Grease Nipple:- required to grease filling.
• Acid resistant Ni-resist or bronze stem nut.
• Thrust bearing to prevent seizure of hand wheel hub, for 2" to 12" valves.
• Needle thrust bearings provided in 14" to 24" valves.
FLOW DIRECTION:
• Metal Seated Flow :- Uni - directional flow.
• Soft Seated Flow :- bi – directional flow.
• Larger size and customized design valves on request.
• Full port valve offers and resistance to flow operation is always easy even when valves are operated frequently.
OPTIONS:
• Design available with chain-wheel, Gear, Electric – Pneumatic or Hydraulic Actuator.
• Locking arrangement on request.
APPLICATIONS:
• Mining, Power, Pulp and paper, Alumina, Chemical, Cement.