The 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.

Couplings have been tested to the ISO 18869 Standard

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

Safety 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)