Capillary Fittings

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capillary-fittingsThe most common method of joining copper tube is with the use of a socket-type, copper or copper alloy capillary fitting into which the tube sections are inserted and fastened by means of a filler metal, using either a soldering or brazing process.


This type of joint is known as a capillary joint because the socket of the fitting overlaps the tube end and a space is formed between the tube and the fitting. This space is called the capillary space. The surfaces of fitting and tube that overlap to form the joint are known as the faying surfaces. Tube and fitting are then solidly joined using a filler metal that is melted into the capillary space and adheres to these surfaces.




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sscSSC
Straight Coupler
Copper to Copper connections
15mm; 22mm; 28mm;
35mm; 42mm; 54mm;
76mm; 108mm
sslSSL
Straight Slip Coupler
Copper to Copper connections
15mm; 22mm; 28mm;
35mm; 42mm; 54mm;
76mm; 108mm
srscfSRSCF
Reducing Straight Coupler
Copper to Copper connections
22mm x 15mm; 28mm x 15mm;
28mm x 22mm; 35mm x 28mm;
42mm x 35mm; 54mm x 42mm;
76mm x 54mm

STC
Straight Tap connector
Copper to Female Iron connections
15mm x ½ “;15mm x ¾”; 22mm x ¾ “
scf1SCFI
Straight Coupler
Copper to Female Iron connections
15mm x ½ “;22mm x ¾ “; 28mm x 1”;
35mm x 1 ¼ “; 42mm x 1 ½ “; 54mm x 2”;
76mm x 3”; 108mm x 4”
scmiSCMI
Straight Coupler connections
Copper to Male Iron connections
15mm x ½ “;22mm x ¾ “; 28mm x 1”;
35mm x 1 ¼ “; 42mm x 1 ½ “; 54mm x 2”;
76mm x 3”; 108mm x 4”
sce45SCE45
Elbow 45°
Copper to Copper connections
15mm; 22mm; 28mm; 35mm;
42mm; 54mm; 76mm; 108mm
sceSCE
Elbow 90°
Copper to Copper connections
15mm; 22mm; 28mm; 35mm;
42mm; 54mm; 76mm; 108mm
scmireSCMIRE
Reducing Elbow 90°
Copper to Male Iron connections
15mm x ¾ “
scfieSCFIE
Elbow 90°
Copper to Female Iron connections
15mm x ½ “; 22mm x ¾ “ ; 28mm x 1”;
35mm x 1 ¼ “; 42mm x 1 ½ “; 54mm x 2
sctSCT
Equal Tee
All Ends Copper
15mm; 22mm; 28mm; 35mm;
42mm; 54mm; 76mm; 108mm
scrtSCRT
Reducing Tee
All Ends Copper
Branch Reduced
15mm x 15mm x 1/2”;
22mm x 22mm x 3/4;
15mm x 15mm x 22mm;
22mm x 15mm x 15mm;
22mm x 15mm x 22mm;
22mm x 22mm x 15mm;
22mm x 22mm x 28mm;
28mm x 22mm x 22mm;
28mm x 22mm x 28mm;
28mm x 28mm x 15mm;
28mm x 28mm x 22mm;
35mm x 35mm x 15mm;
35mm x 35mm x 22mm;
35mm x 35mm x 28mm;
42mm x 42mm x 15mm;
42mm x 42mm x 22mm;
42mm x 42mm x 28mm;
42mm x 42mm x 35mm;
54mm x 54mm x 22mm;
54mm x 54mm x 28mm;
54mm x 54mm x 35mm;
54mm x 54mm x 42mm;
76mm x 76mm x 22mm;
76mm x 76mm x 35mm; 76mm x 76mm x 42mm;
76mm x 76mm x 54mm
stecSTEC
Tube end cap
15mm; 22mm; 28mm
35mm; 42mm; 54mm
sfcSFC
Full crossover
Copper to Copper connections
15mm; 22mm