DescriptionThe HQ Series flat face couplings are Holmbury's flagship products, known globally for their leak free performance across multiple applications. The preferred choice for many global OEMs.Note: Male and female couplings are sold separately. First image shows both male and female couplings. FeaturesSafety locking sleeve fitted as standard to prevent accidental disconnection Flat faces are easily wiped clean Minimal inclusion of air and contaminants during connection Flat face design prevents fluid loss during disconnection Bidirectional flow Operating temperatures (With NBR seals): -40°C (-40°F) to 106°C (223°F), (With FKM seals): -20°C (-4°F) to 200°C (392°F) Couplings have been tested to the ISO 18869 Standard SpecificationsBrand: HolmburySeries: HQ SeriesBody Size: 3/8 in.Body Material: Carbon steel W/ zinc nickel platingOperating Temp: -40°C (-40°F) to 106°C (223°F),Seal material: NBRFlow-Rate: 6.1 GPMFlow-Rate: 23 LPMThread Size: 9/16-18 UNFApprovals/Certif: ISO 16028Thread Type: UNFMaximum working pressure (Coupled): 375 BARMaximum working pressure (Coupled): 5438 PSIBurst pressure (Coupled): 1550 BARBurst pressure (Coupled): 22475 PSIBurst pressure (Male *): 1200 BARBurst pressure(Male *): 17400 PSIBurst pressure (Female **): 1050 BARBurst pressure (Female **): 15225 PSI ApplicationsQuick changeover of construction equipment attachments Skid steer loaders Track loaders Excavators Compact loaders Utility vehicles DownloadsSpecification Sheet (PDF Download)