Civacon | Knappco | Sure Seal

871 Gravity Couplers 

Civacon's Gravity Couplers are used in the unloading process to connect the 4" API adaptor to 3" or 4" hose connections. One handed operation frees up the operators second hand for maneuvering hoses around. They mate with 4" API RP-1004 tank truck adaptors.

The Gravity Couplers come standard with aluminum bodies and Nitrile seals and hose connections which angle 15º downward for better drainage. If you want safer, faster unloads, you want Civacon Gravity Couplers.
  • Features & Benefits
  • Model Numbers
  • Repair Parts
  • Downloads

Features and Benefits

  • Enhanced lip design in the 12-o’clock position centers couple with API adaptor for solid connection. Easier to handle and operate
  • Hose connection end angled at 15° downward for improved drainage
  • Available in female coupler & male adaptor configurations 
  • Mates with standard 4” API RP-1004 tank truck adaptors 
  • Standard with KAMLOK™ Twin-Kam arms which maintain a more secure seal than standard couplings
  • Standard aluminum body with Buna-N seals. Also available with viton seals
 

 

Part numbers and Drawings

(click on the part number to view/download parts breakdown and drawings) 

    
871A-AL40 4” API Gravity Coupler
871A-AL4030 4x3” API Gravity Coupler 
871B-AL40  4” API Female Kamlok Coupler 
871ED-AL40 4” Gravity Coupler 
871EDK-AL40  4" Gravity Coupler 

Repair Parts

  •  871-ARM Kit  -  Cam Repair Kit
  • H08347M        -  Gasket

 

 

 

Brochures • Parts Breakdown • Installation Manuals