Filter Drier DQB DZB Series

The bi-flow filter driers of DQB/DZB series are usually used in liquid line of Heat Pump system to protect from moisture, acids, and foreign solid particles. The DQB series have a core of 100% molecular sieve, while DZB series have a core of 80% molecular sieve and 20% activated alumina.

Technical Data

  • Applicable Refrigerants: R134a, R407C, R410A, and R404A
  • Max. Operating Pressure: 4.6 MPa
  • Medium Temperature: -40°C ~ +80°C
  • Ambient Temperature: -40°C ~ +55°C
  • Applicable Relative Humidity: ≤95%


  • Built-in check valve provides accurate bilateral control;
  • Unrestricted installing position.