LOKRING products refrigeration appliances
 

The LOKRING® Functional Principle

        

THE TYPICAL LOKRING union joint consists of two LOKRINGs and one tubular joint for the acceptance of the two tube ends. Thanks to the conical inner contour of the LOKRING and the special outer contour of the joint, the diameter of the connection is reduced during assembly to such an extent that the joint and the tube create a hermetically sealed metal-to-metal connection.

          

The lifetime gas-tightness of the fitted connection is ensured by the state of permanent elastic pre-tension, which is produced by the radial forces of the LOKRINGs acting in the opposite direction to the tube-joint connection.

 

LOKRING® BRASS CONNECTORS

Verbindung_Messing 
            TECHNICAL SPECIFICATIONS

Reference standards:
EN 378-2 and EN 16084

Max. operating pressure:
25 bar* (360 psi*)

Admissible refrigerants:
Suitable for all HCs, HFCs and mixtures.
Not suitable for NH3.

Temperature range:
-50°C up to 150°C (-58°F up to 302°F)

Tube diameter range:
1.6 to 11 mm (1/16” to 3/8”)

Minimum tube wall thickness:
0.5 mm

Approvals:
TÜV (Registered No. 44 780 08 344780)
UL (File SA12004)

 
 
Components
Joint_Messing LOKRING%20tube%20connections 
 
1) JOINT
2.) LOKRING
 
Material Combinations
Materialkombi_Rohre_Messing
 
Materialkombi_Messing

*Solutions for higher operating pressures on request.

 



LOKRING® ALUMINIUM CONNECTORS

Verbindung_Alu 

TECHNICAL SPECIFICATIONS

Reference standards:
EN 378-2 and EN 16084

Max. operating pressure:
25 bar (360 psi)

Admissible refrigerants:
Suitable for all HCs, HFCs and mixtures.
Not suitable for NH3.

Temperature range:
-50°C up to 150°C (-58°F up to 302°F)

Tube diameter range:
2 to 9 mm (5/64” to 5/16”)

Minimum tube wall thickness:
0.5 mm

Approvals:
TÜV (Registered No. 44 780 08 344780)
UL (File SA12004)

 

Components

lokring-tube-connection-aluminium-joinz LOKRING%20tube%20connections 

1.) JOINT
2.) LOKRING

 

Material Combinations

Materialkombi_Rohre_Alu
 

Materialkombi_Alu