LOKRING® BRASS CONNECTORS TYPE 50
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LOKRING BRASS CONNECTORS TYPE 50 ® TECHNICAL DOCUMENTATION & SUBMITTAL VERSION 1.8 RESPECT PROPRIETARY NOTICE PER ISO 16016!

6.0 TECHNICAL SPECIFICATIONS AND APPROVALS OF THE LOKRING CONNECTION 06 8.0 PRODUCTS SUITABLE FOR AN EXTENDED OPERATING PRESSURE RANGE 07 8.1 BRASS STABILISATION INSERT (LOKRING VH MS) AND SPECIFICATION FOR COPPER TUBE 07 8.2 STRAIGHT BRASS CONNECTOR (LOKRING NK MS 50) 09 8.3 STRAIGHT BRASS REDUCING CONNECTOR (LOKRING NR MS 50) 10 8.4 EURO FLARE-FITTING (LOKRING LR-EURO EB) 12 8.5 BRASS STOPPER (LOKRING VS MS 50) 13 8.6 BRASS T-CONNECTOR (LOKRING NTK MS 50) 14 8.7 BRASS REDUCING ADAPTOR (LOKRING NRA MS 50) 15 9.0 PRODUCTS SUITABLE FOR...

VULKAN LOKRING LOKRING® BRASS CONNECTORS TYPE 50 TECHNICAL DOCUMENTATION & SUBMITTAL VERSION 1.8 | 03 1.0 INTRODUCTION The purpose of this document is to give technicians all information necessary about the solder-free LOKRING® tube connection technology in general and especially about brass LOKRING® connectors type 50. LOKRING® BRASS CONNECTORS TYPE 50 ARE BEING USED IN: Air conditioning systems (split, multi-split, VRF, HVAC) @ Solar thermal energy ® Commercial product refrigeration © Geothermal energy 3.0 COMPONENTS OF A LOKRING® CONNECTION JOINT (1) The shape of the brass joint to...

04 | LOKRING® BRASS CONNECTORS TYPE 50 TECHNICAL DOCUMENTATION & SUBMITTAL VERSION 1.8 LOKRING BRASS CONNECTORS TYPE 50 ® The LOKRING® tube connection works on the basis of »simple« physical laws. It consists of two rings and one tubular joint which takes the two tube ends. During assembly, the tube ends are inserted into the joint to the inner limit. Then an assembly tool is used to push the two rings axially onto the joint. Due to the conical inner contour of the rings and the special outer and inner contour of the joint, the diameter of the joint is reduced during assembly so that the...

VULKAN LOKRING LOKRING® BRASS CONNECTORS TYPE 50 TECHNICAL DOCUMENTATION & SUBMITTAL VERSION 1.8 | 05 Since LOKPREP's curing time depends on the ambient temperature, two fluids exist for the LOKRING® brass connections types 50. The curing time of the LOKPREP LT has been optimally matched to ambient temperatures up to 30°C (86°F). LOKPREP HT develops its optimum characteristics only at temperatures above 25°C (77°F). CHECK THE EXPIRY DATE BEFORE APPLYING LOKPREP. ALWAYS MAKE SURE THAT THE WHOLE TUBE CIRCUMFERENCE IS MOISTENED WITH LOKPREP. POSSIBILITY A Rotate the moistened tube through...

06 | LOKRING® BRASS CONNECTORS TYPE 50 TECHNICAL DOCUMENTATION & SUBMITTAL VERSION 1.8 VULKAN LOKRING LOKRING BRASS CONNECTORS TYPE 50 ® Always make sure that the LOKPREP is properly cured before exerting any force on the LOKRING connection by moving, turning or bending the tube. 6.0 TECHNICAL SPECIFICATIONS AND APPROVALS OF THE LOKRING CONNECTION Reference standards: EN 378-2 and ISO 14903 Max. operating pressure: 75 bar (1088 psi) Admissible refrigerants: Suitable for all HFCs and mixtures, all HCs, R32 and CO2*. Not suitable for NH3. Temperature range: -50°C up to 150°C (-58°F up to...

VULKAN LOKRING LOKRING® BRASS CONNECTORS TYPE 50 TECHNICAL DOCUMENTATION & SUBMITTAL VERSION 1.8 | 07 8.0 PRODUCTS SUITABLE FOR AN EXTENDED OPERATING PRESSURE RANGE Introduction: All products in this chapter are suitable for applications with an operating pressure of up to 75 bar (1088 psi) including subcritical CO2 applications. Stabilisation insert Article no. Article name max. tube outer-0 min. tube outer-0 max. wall thickness min. wall thickness

08 | LOKRING® BRASS CONNECTORS TYPE 50 TECHNICAL DOCUMENTATION & SUBMITTAL VERSION 1.8 VULKAN LOKRING BRASS STABILISATION INSERT Article no. Article name min. tube outer-0 max. wall thickness min. wall thickness

VULKAN LOKRING LOKRING® BRASS CONNECTORS TYPE 50 TECHNICAL DOCUMENTATION & SUBMITTAL VERSION 1.8 | 09 STRAIGHT BRASS CONNECTOR

VULKAN LOKRING 10 | LOKRING® BRASS CONNECTORS TYPE 50 TECHNICAL DOCUMENTATION & SUBMITTAL VERSION 1.8 Article no. Article name

VULKAN LOKRING LOKRING® BRASS CONNECTORS TYPE 50 TECHNICAL DOCUMENTATION & SUBMITTAL VERSION 1.8 | 11 Notes Article no. Article name Dimension

VULKAN LOKRING 12 | LOKRING® BRASS CONNECTORS TYPE 50 TECHNICAL DOCUMENTATION & SUBMITTAL VERSION 1.8 Article no. Article name ODT LAN (ca.) WS (Nut) Thread (Nut) Tightening torque 'Stabilisation inserts must not be used within the stainless steel tube of a EURO flare-fitting.

VULKAN LOKRING LOKRING® BRASS CONNECTORS TYPE 50 TECHNICAL DOCUMENTATION & SUBMITTAL VERSION 1.8 | 13 Article no. Article name

VULKAN LOKRING 14 | LOKRING® BRASS CONNECTORS TYPE 50 TECHNICAL DOCUMENTATION & SUBMITTAL VERSION 1.8 Article no. Article name L13004614 LOKRING 6 NTK Ms 50 L13004777 LOKRING 6,35 NTK Ms 50 L13001193 LOKRING 9,53 NTK Ms 50 L13001194 LOKRING 10 NTK Ms 50 L13001195 LOKRING 12 NTK Ms 50 L13001698 LOKRING 12,7 NTK Ms 50 L13001198 LOKRING 16 NTK Ms 50 L13001190 LOKRING 18 NTK Ms 50 L13001199 LOKRING 19 NTK Ms 50 L13000812 LOKRING 22 NTK Ms 50 L13003339 LOKRING 28 NTK Ms 50 L13003338 LOKRING 28,6 NTK Ms 50 L13005002 LOKRING 35 NTK Ms 50

VULKAN LOKRING LOKRING® BRASS CONNECTORS TYPE 50 TECHNICAL DOCUMENTATION & SUBMITTAL VERSION 1.8 | 15 'Stabilisation inserts must not be used within an NRA adaptor.

VULKAN LOKRING 16 | LOKRING® BRASS CONNECTORS TYPE 50 TECHNICAL DOCUMENTATION & SUBMITTAL VERSION 1.8 Article no. Article name ‘Stabilisation inserts must not be used within an NRA adaptor.

VULKAN LOKRING LOKRING® BRASS CONNECTORS TYPE 50 TECHNICAL DOCUMENTATION & SUBMITTAL VERSION 1.8 | 17 9.0 PRODUCTS SUITABLE FOR A STANDARD OPERATING PRESSURE RANGE Introduction: The products in this chapter are suitable for all standard applications. Respect the maximum operating pressure for each product as stated. 9.1 90° COPPER ELBOWS (LOKRING CU 90-EB) In accordance with EN 12735-1. Max. operating pressure: 50 bar (725 psi) Supplied with the necessary stabilisation inserts. Article no. Article name