PWC Series

Free flow, valveless pressure washer couplings

Pressure Wash Applications

Holmbury’s PWC Series couplings are able to accommodate high flow rates and minimal pressure drops. The couplings are valveless, hence when disconnected any fluid in the system can escape. This makes these couplings suitable for the transmission of non-hazardous fluids only.
High Flow TechHigh Flow
Speciality Coupling TechSpeciality Coupling
Carbon Steel Zinc Nickel Materials

Features

  • Valveless design allows for high flow rates and minimal pressure drop characteristics
  • Female half has double ‘O’ ring sealing arrangement
  • Bidirectional flow










Accessories

Seal Kits are available for the PWC Series

Construction

  • Carbon steel with zinc nickel sleeve
  • Fitted with Viton seals
  • Available in AISI 316 stainless steel (See PWS Series)










Applications

  • Designed for use in pressure washer systems and systems containing non-hazardous fluids










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)