Title:
PIPE PURGE SYSTEM FOR AIR CONDITIONING SYSTEMS AND METHOD OF PURGING PIPES USING SAID SYSTEM
Document Type and Number:
WIPO Patent Application WO/2020/144459
Kind Code:
A1
Abstract:
A pipe purge system for purging air conditioning pipes has a valve assembly (1) operable by a remote control (15). An inlet port (2) of the valve assembly (1) can be connected to a nitrogen cylinder (N) and three outlet ports (3, 4, 5) can be connected to ends of pipes (P1, P2, P3) which will carry coolant for the air conditioning. The remote control (15) can then be operated from a remote location adjacent the ends of the pipes to open a passage for nitrogen to purge a first one of the pipes prior to brazing the purged pipe. Subsequent to brazing the remote control can be operated to close the open passage and open a second passage to purge a second pipe for brazing. When required all the passages can be closed by operation of the remote control. The system saves time, labour and nitrogen in brazing the coolant pipes of an air conditioning system.
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| WO/1993/014273 | COMPRESSED-AIR-FILLED CONTAINER WITH FILLING PRESSURE LIMITER |
| JP2012202200 | PIPE PURGING TOOL AND PIPE PURGING METHOD |
Inventors:
BUTTLE PHILIP GRAEME (GB)
Application Number:
PCT/GB2020/050011
Publication Date:
July 16, 2020
Filing Date:
January 06, 2020
Export Citation:
Assignee:
BUTTLE PHILIP GRAEME (GB)
International Classes:
B08B9/032; B08B13/00; B23K1/00; B23K1/20; B23K9/32; F16K11/00; F24F11/56; F25B41/04; G08C17/02
Foreign References:
| EP0882517A1 | 1998-12-09 | |||
| GB2461319A | 2009-12-30 | |||
| US5964238A | 1999-10-12 | |||
| GB2461319A | 2009-12-30 |
Attorney, Agent or Firm:
KEMP, Paul (GB)
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