HCP Series

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Connect under pressure flat face male couplings made to the ISO 16028 Standard

Construction ApplicationsIndustrial ApplicationsForestry Applications

Holmbury’s HCP Series male couplings are designed to connect under pressure by hand with up to 350 bar (5075 psi) locked in the male half, making it an ideal choice for applications where the ability to connect under pressure is essential. The HCP Series also benefits from all the key features of the HQ Series flat face couplings.
Connect Under Pressure TechConnect Under Pressure
Carbon Steel Zinc Nickel Materials ISO 16028 Flat Faced Couplings ISO Standard
Flat Face CouplingsHCP

Features

  • Designed to connect with the HQ Series 
  • 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
  • Connect under pressure with up to 350 bar (5075 psi) locked in the male half
  • Female half of HQ Series must have zero pressure when connecting male HCP under pressure

Accessories

  • Dust Caps are available for the HCP Series

Construction

  • Carbon steel with zinc nickel plating (1200 hours with no red rust in salt spray tests)
  • Fitted with Nitrile seals

Applications

  • Hot environments where thermal expansion of trapped oil may take place
  • High pressure pulse applications
  • Leak free environments
  • Construction plant
  • Mobile equipment 
  • General industrial 
  • Agricultural
  • Skid steer loaders

AVAILABLE SEALS AND TEMPERATURE RANGE

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

0°

106°C 223°F

Nitrile

120°C 248°F

EPDM

200°C 392°F

Viton®

300°C 572°F

Kalrez®

0°

-20°C -4°F

Viton®

-25°C -13°F

Kalrez®

-40°C -40°F

Nitrile

-50°C -58°F

EPDM

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 -40°C (-40°F) 106°C (223°F)
FKM (FPM) Dai-el®, Fluorel®, Tecnoflon®, Viton® Fluoro-elastomer Rubber -20°C (-4°F) 200°C (392°F)
EPR EPDM Buna-AP®, Dufral®, Epsyn®, Nordel®, Epcar8, Keltan®, Royalene®, Polysar-EPDM® Ethylene Propylene Copolymer Ethylene Propylene Terpolymer -50°C (-58°F) 120°C (248°F)
FVMQ Silastic 1S®, FSE® Fluorosilicone Rubber -65°C (-85°F) 170°C (338°F)
FFKM Perlast®, Kalrez®, Chemraz®, Kaflon® Perfluoroelastomer -25°C (-13°F) 300°C (572°F)