AVK Knife gate valve with handwheel NBR

AVK Knife gate valve with handwheel NBR

Knife gate valve with non-rising stem and handwheel for wastewater treatment 0°C to +80°C
AVK lug/wafer knife gate valves are bi-directional with full and plane bore. The protected sealings and high quality materials bring about a great performance and a long service life. AVK knife gate valves are available with lever, non-rising stem and handwheel, rising stem and handwheel, pneumatic actuator, ISO top flange for actuator or complete with electric actuator.

Features

• Replaceable top packing gland enables sealing replacement without disassembly of the valve
• The valve is self cleaning as particles will be pushed off the gate when opening the valve. For extra protection of the packing gland a scraper is available as an optional extra.
• Bi-directional, can be installed independent of the flow direction
• Full bore with no reduction of the flow
• Plane bottom prevents sediment from being accumulated
• No cavity in the body and thus no risk of clogging
• U-shaped one-piece NBR sealing between the body parts makes up for tolerances in coating and casting. It is reinforced with a steel insert to protect it from being damaged during operation.
• Encaged stem with yokes prepared for mounting of micro switches and inductive censors
• Stem and gate connection is secured with self-locking nuts
• Supports integrated in the body casting protect the gate from deflecting under pressure
• Body of ductile iron with 100-150 μm UV resistant polyester coating, RAL 5017. Optionally of acid-resistant stainless steel or duplex
• Yokes of carbon steel with coating 100-150 μm of plascoat PPA 571 Aqua
• Gate, stem, bolts and nuts of acid-resistant stainless steel
• Washers under the bolts protect the coating
• Slim design and low weight
• Approved according to the 2014/68/UE Pressure Equipment Directive
• Approved according to the 2014/34/EU ATEX Directive
• Available in larger dimensions
• Optionally in higher PN class