VVSS Series

Stainless steel high pressure heavy duty screw connect couplers

AKJia’s VVSS Series stainless steel screw connect couplersare designed for heavy  duty applications involving very high pressures and severe pressure pulses. They incorporate all the benefits of the carbon steel VVS Series, while being
perfectly suited for corrosive fluids and environments.


  • AISI 316 stainless steel
  • Fitted with Viton seals (Other seals available on request)
  • Also available in carbon steel (See VVS Series)
Datasheet Inquiry
vvs Series High pressure heavy duty screw connect couplers


  • Screw connect design eliminates brinelling
  • Can be connected with up to 50 bar residual pressure in the hydraulic circuit
  • Bidirectional flow


  • Hydraulic jacks
  • Marine
  • Oil and gas


CVV series complied with ISO 14541:2013 standard, the Dimensions and requirements for screw-to-connect quick-action couplings for general purpose

ISO 14541:2013

Available Seals and Temperature Range

All carbon steel products have Nitrile Butadiene Rubber (NBR) seals fitted as standard. All stainless steel products have Fluoro-elastomer Rubber (Viton®) (FKM) seals fitted as standard. Special seal materials are available on request.

Abbreviation Trade Name Chemical Name Min. Temp Max. Temp
NBR, XNBR Chemigum®,  Hycar8,  Breon®,  Butakon®, Butacril®, Buna-N®, Perbunan®, Paracril®, Krynac®, Europrene-N®, Nipol® Nitrile Butadiene Rubber
Carboxylated Nitrile Rubber
-40ºC (-40ºF) 106ºC (223ºF)
FKM(FPM) Dai-el®, Fluorel®, Tecnoflon®, Viton® Fluoro-elastomer Rubber -20ºC (-4ºF) 200ºC (392ºF)
EPR, EPDM Buna-AP®, Dufral®, Epsyn®, Nordel®, Epcar8, Keltan®, Royalene®, Polysar-EPDM® Ethylene Propylene Copolymer
Ethylene Propylene Terpolymer
-50ºC (-58ºF) 120ºC (248ºF)
FVMQ Silastic 1S®, FSE® Fluorosilicone Rubber -65ºC (-85ºF) 170ºC (338ºF)
FFKM Perlast®, Kalrez®, Chemraz®, Kaflon® Perfluoroelastomer -25ºC (-13ºF) 300ºC (572ºF)