Resilient seat gate valve for water and neutral liquids. Max. 160°F

There are many situations that require valves and hydrants with additional restraining power. AVK valves and hydrants equipped with the patented technology of the HYMAX GRIP®. Designed using HYMAX’s innovation and patented technology, our flow control solutions work with ductile iron, PVC and HDPE pipes and are suitable for a wide variety of applications.


  • Fast and easy one-bolt connection works for all pipe types, is flexible and self-restrained
  • HYMAX GRIP® meets or exceeds all specifications of AWWA Standard C219, NSF-61 and NSF-372
  • End rings: 1.5” – 3”: Steel Casting ASTM A216 WCB.- 4” – 12”: Ductile Iron Casting ASTM A536 grade 60-40-18
  • Bolts, Nuts and Washers: ASIS 304 Stainless Steel impregnated with zinc via the MAG process
  • Gasket: EPDM compounded for water and sewage. Certified to NSF-61 and NSF-372 standards for contact with drinking water
  • Gasket bridge: AISI 304 Stainless Steel
  • Spherical spacers: AISI 304L Stainless Steel
  • Coating: Fusion bonded epoxy for enhanced corrosion protection NSF-61 and NSF-372. – Average thickness 14 mil
  • Working temperature: EPDM: -20°F UP TO +125°F, NBR: -4°F UP TO +125°F
  • Minimum pipe insertion of 3.6“
  • Dynamic deflection up to 4° per side