AVK GATE VALVE, FLANGED, PN10/16

Features

• Fixed, integral wedge nut prevents vibration and ensures durability.
• The ductile iron core is fully vulcanized with drinking water approved EPDM rubber, no iron parts are exposed to the medium and the excellent rubber vulcanization prevents creeping corrosion underneath the rubber.
• Guides in the wedge and on the valve body ensure a uniform closure, safe operation and prevent overloading of the stem.
• The wedge has a large through bore with room for the stem, completely free of hollows or cavities where stagnant water or impurities could collect and cause contamination.
• Stainless steel stem with wedge stop and rolled threads for high strength.
• Full circle brass thrust collar provides fixation of the stem and low free running torque.
• Triple stem seal system with an NBR wiper ring protecting against impurities from outside, a polyamide radial bearing with four NBR O-rings and innermost an EPDM rubber lip seal as the main hydraulic seal to the flow.
• Round bonnet gasket fixed in a recess groove in the bonnet preventing it from being blown out by pressure surges.
• Counterbored and hot-melt sealed bonnet bolts encircled by the bonnet gasket ensures no risk of corrosion.
• Full bore
• Fusion bonded epoxy coating in compliance with DIN 3476 part 1 and EN 14901, GSK approved