CVVS Series

Stainless steel general purpose screw connect couplers made to the ISO 14541 Standard dimensions

AKJia’s CVVS Series stainless steel screw connect couplers are designed primarily for high pressure pulse applications. They incorporate all the benefits of the carbon steel CVV Series, while being perfectly suited for corrosive fluids and environments.


  • AISI 316 stainless steel (All components)
  • Fitted with Viton seals FKM (Other seals available on request)
  • Also available in carbon steel (See CVV Series)
Datasheet Inquiry


  • Screw connect design eliminates brinelling
  • Modular construction enables numerous thread and connection options
  • Can be connected with up to 50 bar residual pressure in the hydraulic circuit
  • Bidirectional flow


  • Hydraulic jacks
  • Marine
  • Oil and gas
  • agricultural industries.
cvv drawing2


CVVS 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)