AVK GATE VALVE, AWWA, FLANGED, ANSI 125/150

Description

Key Features

• An integral wedge nut firmly fixed to the wedge prevents vibration
• Wedge fully vulcanized with EPDM rubber in a process that prevents creeping corrosion underneath the rubber
• Wedge sliding on guide rails gives smooth operation and low operating torque
• A large conical stem hole in the wedge ensures circulation and prevents stagnant water
• Stem of stainless steel AISI 304 with rolled threads (DN50-300) or high strength alu-bronze grade C63020 (DN350-400)
• Stem sealing with a wiper ring, two upper O-rings in a polyamide bearing and one lower O-ring as the main stem seal
• Round bonnet gasket fixed in a recess to prevent blow-out
• Bonnet bolts in A4 stainless steel, counterbored, sealed with hot-melt and encircled by the bonnet gasket
• Full bore and clear way
• A brass thrust bearing for low operating torque
• Fusion-bonded epoxy coating blue RAL5017 in compliance with DIN 3476 part 1 and EN 14901

Information

AVK series 45 gate valves are designed to US-standards. Valve body, bonnet and wedge core are made of ductile iron which ensures high strength and reliability. The wedge is fully vulcanized with AVK’s own drinking water approved EPDM rubber compound featuring an outstanding ability to regain its original shape. Corrosion protection is excellent with all iron parts coated with fusion bonded epoxy, fasteners in stainless steel and stem in either copper alloy or stainless steel.

Standards

• Designed according to AWWA C509, Designed according to FM 1120/1130, UL 262
• Face to face according to ANSI B16.10
• Flange drilling to ANSI B 16.42, class 150

Test/Approvals

• Hydraulic tests according to FM and UL Standards.
• Seat: 1.5 x PN (in Bar). Body: 2 x PN (in Bar). Closing torque test.
• FM Approved. UL listed.
• Belgaqua approved material