Intro to AVK gate valves
AVK has been in the valve business for 50 years. When Niels Aage Kjaer took over his father’s smithy in 1970, he developed the first gate valve, a resilient seated socket-ended gate valve with a lot of new technical features. He soon realized that the quality of the internal rubber components is very important for the valve performance, So he decided to take full control of this and acquired a neighbouring rubber factory in 1975. Today, AVK GUMMI A/S develops and manufactures rubber compounds for AVK and many other customers.
High quality gate valves
AVK's continuous focus on high quality and innovation has paved the way for a global reach, and the gate valve range has been widened substantially to meet local requirements around the world. Today, AVK offers gate valves according to global standards and with a wealth of end connections and material configurations – in total more than 100 variants to meet the requirements from AVK International’s region, and more than 300 variants in total from the AVK Group of companies. Find our gate valve product range.
Design features of AVK gate valves
- Fixed, integral wedge nut prevents corrosion, made of brass certified for use in contact with drinking water
- Wedge shoes fully vulcanised to the wedge core ensuring smooth operation and maximum corrosion protection
- AVK’s wedge rubber features an excellent bonding and ability to regain its shape, minimum formation of biofilm and high resistance to water treatment chemicals
- Large stem hole in the wedge prevents stagnant water
- Wedge stop protects seals and coating
- Rolled threads increase the stem’s durability
- Triple safety stem sealing
- Thrust collar provides fixation of the stem and low torques
- The bonnet gasket is fixed in a recess in the bonnet and encircles the bonnet bolts to prevent blow-out
- Countersunk bonnet bolts sealed with hot melt to protect against corrosion
- Full bore ensures low head loss and enables use of pipe cleaning devices
- Low operating torques ensure easy operation
- Epoxy coating in compliance with DIN 3476 part 1, EN 14901 and GSK, optionally internal enamel and external PUR coating
