HSC/5000*US Series

Heavy duty screw connect couplings

Construction ApplicationsDemolition Applications

Holmbury’s HSC/5000*US Series screw connect couplings are designed for heavy-duty, high pressure pulse applications. The unique design is built to withstand the most severe pressure pulses where other couplings fail.
Connect Under Pressure TechConnect Under Pressure
Heavy Duty TechHeavy Duty
Carbon Steel Trivalent Materials

Features

  • Screw connect design eliminates brinelling
  • Bidirectional flow
  • Once connected all internal parts are held rigid which significantly reduces fatigue of the poppet, spring and coupling body
  • Can be connected and disconnected under pressure
  • All internal components are replaceable
  • Supplied with caps and plugs to protect threads and limit inclusion of contaminant








Accessories

  • Dust caps, plugs, seal kits, repair kits, weldable mounting brackets, spanner and tool sets are available for the HSC Series








Construction

  • Carbon steel with trivalent plating
  • Available only with BSPP threads
  • Fitted with Viton seals








Applications

  • Intense pressure pulse applications
  • Demolition
  • Hammer circuits
  • Shears
  • Rock crushers








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.

106°C 223°F

Nitrile

120°C 248°F

EPDM

200°C 392°F

Viton®

300°C 572°F

Kalrez®

-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)