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Lokring Tube Connection
The Need
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A fast and solderless system for
connecting air-conditioning and refrigeration tubing of the same or different metals
(aluminum, copper, steel) and between the same or different sizes. The system provides a
hermetically sealed metal-to-metal connection that intrinsically safe. It can be used in
areas where flammable or explosive conditions may exist. |
The Lokring Tool
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The Technology
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When the connection is made, the LOKRING
elements are joined together in a way that the internal profile of the connection is
producing an inward radial pressure against the union body and the tubes being joined.
This connection forms a metal-to-metal hermetic seal that eliminates the possibility of a
pressure drop. The
connection is made in the following way: A specially formulated anaerobic sealant is
applied to both tube ends to fill any surface scratches. Each end is inserted into a
LOKRING connector. The LOKRING tool is then used to join both ends to the connector. |
The Benefits
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- Allows an extremely fast cold connection. Ten times faster
than equivalent weld connections.
- Four times stronger than a soldered joint. It is resistant
to forces of high pressure, vibration, and thermal cycling. Expansion or contraction of
the material caused by change in temperature has no impact on the elasticity of the tube
connection.
- Makes direct transitions from one tube size to another using
reducers or tee connections.
- Can connect tubes of different metals.
- Requires no special training.
- This type of connection eliminates the possibility of any
system contamination.
- Can withstand pressures up to 3,000 psi and operating
temperatures from -50° C (-58° F)
to +150° C (+302° F).
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Status
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The LOKRING system has been field-proven in
millions of installations since the 1970s and because of its benefits and potential
impact, this technology is still considered as a High-impact emerging construction
technology. |
Barriers
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The connections are limited to only diameters
from 1.6mm (1/16") to 22mm (7/8"). |
Points of Contact
Jennifer Wyrosdick, Customer Service Coordinator. American
LOKRING Corporation. P.O. Drawer 673, 2525 Dundee Rd. Winter Haven, FL 33884. Phone: (941)
325-9262, Fax: (941) 324-4008.
E-mail: lokringusa@lokringusa.com
References
- LOKRING Catalog.
- LOKRING Web site.
Disclaimer Statement
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Neither the Construction
Industry Institute nor Purdue University in any way endorses this
technology or represents
that the information presented can be relied upon without further investigation. |
LHM08
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