CVV Series

General purpose screw connect poppet couplers made to the ISO 14541 Standard

AKJia’s CVV Series screw connect couplers are designed primarily for high pressure pulse applications. They can be connected under residual system pressures of up to 50 bar. The CVV Series is a cost effective, proven solution suited to many industries and applications.


  • Carbon steel with trivalent plating
  • Fitted with Nitrile seals (NBR)
  • Also available in AISI 316 stainless steel (See CVVS Series)
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  • 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


  • Hammer circuits
  • High pressure pulse applications
  • Construction plant, mobile equipment, demolition and agricultural industries.
cvv drawing2


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)