Quick Connect Couplings Series : CQ21
( ISO 16028)


DAWSONS-TECH Series : CQ21 Stainless Steel Double shut- off Flat Face Quick Connect Coupling is designed and manufactured to meet requirements for sealing media in Chemical Processing, Chemical Dispensing, Food Processing and other corrosive applications.
DAWSONS-TECH Series : CQ21 Double shut-off Flat Face Quick Connect Couplings are of Industries interchange design and inter changeable with ISO 16028 Flat Face Couplings.

Features :
  • Available in material SS316 with Fluorocarbon seals as standard.
  • Flat face design is easy to clean, reducing the inclusion of contamination inside the hydraulic circuit.
  • Prevent fluid loss during disconnection and reducing fluid spillage to the environment.
  • Easy to operate, Bidirectional flow.
  • Seal with PTFE back-up rings designed to ensure reliable and leak free sealing in high Pressure application.
  • Ball locking mechanism provide safe and reliable connections.
  • Every Coupling is pressure tested.
Product Range & Operating Parameters :
  • Available Size: 1/4” to 1” pipe connection
  • Pressure Ratings: Up to 5000 PSI at CWP
  • Temperature Rating : Up to to 180o C
  • End Connections: Available with BSPP, BSPT, NPT etc. Pipe threads
Applications :
  • Chemical Processing
  • Chemical Dispensing
  • Food Processing
  • Other Corrosive Fluids and Environment

Material of Construction :
Sr. No. Description Material
1 Sleeve SS316
2 Ball Stainless Steel
3 Lock Ring SS316
4 Retainer SS316
5 Face Pin SS316
6 Captive Seal Fluorocarbon
7 Spring Retainer Fluorocarbon
8 Spring SS316
9 Backup Ring PTFE
10 ‘O’ Ring Fluorocarbon
11 Housing SS316
12 Packing PTFE
13 ‘O’ Ring Fluorocarbon
14 Adaptor SS316
15 Plug Flow Brass
16 ‘O’ Ring Fluorocarbon
17 End Connector SS316
Sr. No. Description Material
1 Plug SS316
2 Spring Retainer SS316
3 Backup Ring PTFE
4 ‘O’ Ring Fluorocarbon
5 Pusher Pin SS316
6 Spring SS316
7 Packing PTFE
8 Plug SS316
9 ‘O’ Ring Fluorocarbon
10 End Connector SS316

End Connection Size Dimensions in mm / inch Dawsons-Tech Part No.
A B C D E F G A/F-1 A/F-2
1/4" BSP 28.0 23.8 58.0 16.1 16.1 48.5 22.0 22.0 CQ21-CP-FF4RG-SSV
1.10'' 0.94'' 2.28'' 0.63'' 0.63'' 1.91'' 0.87'' 0.87''
3/8” BSP 32.0 26.0 68.0 19.7 19.7 55.5 24.0 24.0 CQ21-CP-FF6RG-SSV
1.26'' 1.02'' 2.68'' 0.78'' 0.78'' 2.18'' 0.94'' 0.94''
1/2" BSP 38.1 28.9 73.5 19.7 19.7 59.0 27.0 27.0 CQ21-CP-FF8RG-SSV
1.50'' 1.14'' 2.89'' 0.78'' 0.78'' 2.32'' 1.06'' 1.06''
3/4" BSP 42.0 38.6 80.5 24.5 24.5 75.5 35.0 35.0 CQ21-CP-FF12RG-SSV
1.65'' 1.52'' 3.17'' 0.96'' 0.96'' 2.97'' 1.37'' 1.37''
1” BSP 48.0 44.8 101.6 30.0 30.0 93.0 41.0 41.0 CQ21-CP-FF16RG-SSV
1.89'' 1.76'' 4.0'' 1.18'' 1.18'' 3.66'' 1.62'' 1.62''
1/4" NPT 28.0 23.8 58.0 16.1 16.1 48.5 22.0 22.0 CQ21-CP-FF4N-SSV
1.10'' 0.94'' 2.28'' 0.63'' 0.63'' 1.91'' 0.87'' 0.87''
3/8” NPT 32.0 26.0 68.0 19.7 19.7 55.5 24.0 24.0 CQ21-CP-FF6N-SSV
1.26'' 1.02'' 2.68'' 0.78'' 0.78'' 2.18'' 0.94'' 0.94''
1/2" NPT 38.1 28.9 73.5 19.7 19.7 59.0 27.0 27.0 CQ21-CP-FF8N-SSV
1.50'' 1.14'' 2.89'' 0.78'' 0.78'' 2.32'' 1.06'' 1.06''
3/4" NPT 42.0 38.6 80.5 24.5 24.5 75.5 35.0 35.0 CQ21-CP-FF12N-SSV
1.65'' 1.52'' 3.17'' 0.96'' 0.96'' 2.97'' 1.37'' 1.37''
1” NPT 48.0 44.8 101.6 30.0 30.0 93.0 41.0 41.0 CQ21-CP-FF16N-SSV
1.89'' 1.76'' 4.0'' 1.18'' 1.18'' 3.66'' 1.62'' 1.62''
  Dimensions are for reference only and are subject to change.