Knife Gate Valves

• Cost saving – low maintenance
• Top works protected for robust applications
• Double flanged
• Supporting seal fitted to gland seal for longer life on gland seal
• Valves do not need to be removed from the line as the gland seal allows for adjustment and replacement while in the line.
• All resilient seal linings offer ‘no’ leakage on gas, powders and liquids.
• Our design offers positive seating at all times preventing ‘cavity’ on the bottom where solids accumulate
• The self-cleaning section prevents slurry or solid build up that allows free movement of the blade at all times

• Depressurise the circuit and place the valve in closed position
• Rising stem valves. Release the spindle or stem from the gate
• Loosen the screws of the yoke and remove it
• Loosen the nuts of the gland follower and remove it
• Remove the old packing rings and clean the stuffing box
• Insert the new packing rings making sure that the ring joints alternate
• Once the necessary packing rings have been inserted, proceed with a steady initial tightening of the gland follower
• Fix the stem to the gate
• Remount the gate guards
• Carry out some operations with a loaded circuit and then retighten the gland follower to prevent leakage

Body: Cast Iron, Carbon Steel, Stainless Steel: 
Blade: Stainless Steel 304/314, Rocklast Hardened Material
Hand Wheel: Cast Iron
Lining: Natural Rubber, EP DM, Polyurethane
Gland: Cast Steel
Pillar: Cast Steel
Spindle: 304 Stainless Steel
Rev Nut: Bronze Lg2

Lubrication:
Recommendation – twice yearly. Remove protection cap, fill stem protector cap halfway with calcium-based grease.

Grease Characteristics:
High water resistant, low ash content and excellent adherence.

Storage:
Store in well-ventilated room. Valves should not be exposed to temperatures higher than 300 ºC. If stored outside, cover valve and protect from heat and direct sunlight.

Information Required to Quote:
• Size of Bore
• Working Pressure
• Temperature
• Table Drilling
• Operation (Handwheel, Gearbox or Actuator) Media (Chemical, slurry etc.)