AVK FLANGED GATE VALVE, EN 1074, PN16

Description

Key Features

• Fixed, integral wedge nut prevents vibration and increases durability
• Polyamide wedge shoes protect the wedge rubber during opening and closing
• Stainless steel stem with wedge stop
• A large conical stem hole in the wedge prevents stagnant water
• Three independent stem seals: an NBR wiper ring protects against dust from outside, two NBR O-rings protect the radial bearing and innermost two EPDM O-rings act as the main seal to the flow
• Axial thrust bearing with PTFE coated stainless steel washers provides low operating torques
• Removable gland flange for replacement of thrust- and radial bearings and seals under pressure
• Round bonnet gasket fixed in a recess to prevent blow-out
• Counterbored stainless steel bonnet bolts encircled by the bonnet gasket and sealed with hotmelt glue
• ISO actuator flange; electric actuator or gearbox is recommended
• Integrated lifting eyes for easy handling
• 3/4″ connection plug for installation of air valve
• Epoxy coating to DIN 30677-2, GSK approved
• All rubber parts with multiple drinking water approvals (DVGW, WRAS)
• For installation with horizontal or vertical stem
• Detachable covers at the bottom for flushing of wedge rail
• By-pass valve

Information

AVK gate valves are designed with built-in safety in every detail. The wedge is fully vulcanized with AVK’s own drinking water approved EPDM rubber compound. It features an outstanding durability due to the ability of the rubber to regain its original shape, the double bonding vulcanization process and the sturdy wedge design. The triple stem seal system, the high strength stem and the thorough corrosion protection safeguard the unmatched reliability.

Standards

• Designed according to BS EN 1074 -1 and 2
• Face to face according to EN 558 Table 2 Basic Series 3
• Standard flange drilling to EN1092 (ISO 7005-2), PN 16

Test/Approvals

• Seat: 1.1 x PN (in Bar), Body: 1.5 x PN (in Bar). Closing torque test.