FFHP Series

High-pressure flat face couplers fitted with a safety locking sleeve

AKJia’s FFHP Series flat face couplers provide a leak free solution for high pressure applications up to 720 bar. The safety locking sleeve prevents accidental disconnection and can only be disconnected when the release notch and locking ball align.


  • Carbon steel with trivalent plating
  • Option: Carbon steel with zinc-nickel plating (500 hours with no red rust in salt spray tests)
  • Fitted with Nitrile seals – NBR (Viton seals – FKM available)
Datasheet Inquiry
FFHP Series 3/8" High pressure 720 Bar Flat Face Quick Couplings


  • Spring-loaded safety locking sleeve fitted to prevent accidental disconnection,
  • Flat faces are easily wiped clean
  • Allows for minimal inclusion of air and contaminants during connection
  • Flat face design prevents fluid loss during disconnection
  • Bidirectional flow


  • High-pressure plant and equipment
  • High-pressure pulse applications
  • Rail industries; especially on de-stressing kit
  • Bolt tensioning
  • Cutting tools
  • Jacking applications
FFHP dimensions


FFHP quick connector is a specially designed high-pressure flat quick connector, used to replace other quick connectors in high-pressure environments. Because the flat quick connector is impervious to liquid and easy to clean, it can be used to replace other high-pressure quick connectors. Currently, there are only 3/8 body designs. Comply with ISO16028 standard

ISO 16028 -2023

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)