AVK GATE VALVE, RESILIENT SEATED, PN25

Features

• For water, sewage and neutral liquid applications
• Valve designed for use up to 70°C
• Where applicable; for AS/NZS 4020 compliance, max temp = 40°C
• Wedge nut designed as a fixed, integral part of the wedge which prevents vibration and ensures durability
• Wedge core fully vulcanized with drinking water approved EPDM rubber in a sophisticated process that eliminates creeping corrosion underneath the rubber
• Wedge shoes in PA and guide rails on the body make the wedge slide easily up and down regardless of differential pressure
• A large conical stem hole going all the way through the wedge ensures circulation and prevents stagnant water
• Stainless steel stem with wedge stop and rolled threads for high strength
• Full circle thrust collar keeps the stem firmly lined up and ensures low operating torque
• Triple safety stem seal with an NBR wiper ring outermost to protect against contamination from outside, in the middle four NBR O-rings around the radial bearing and innermost an EPDM lip seal as main seal to the system pressure
• Bonnet gasket in EPDM with a circular cross-section, fixed in a recess to avoid blow-out
• Counterbored stainless steel bonnet bolts, sealed with hot-melt and encircled by the bonnet gasket