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Glassware Catalog

Tubing Adapters - Sigma-Aldrich Glassware Catalog

Connecting  •  Reducing/Enlarging  •  Septum-Inlet  •  Specialty  •  Tubing  •  Vacuum

On this page: Torion connectionW/ StopcockAccessories

Tubing adapters with Torion connection
  1. Hard-wall transfer tubing (e.g. PP or PTFE) is inserted through the threaded polypropylene bushing and PTFE- coated sealing ring of the adapter.
  2. Turn the bushing to make an airtight compression seal with the tubing.
  3. Use the optional solid-glass plug to make an airtight Torion seal when the transfer tubing is not in use.
Tubing
o.d. (in.)
Inner
S.T. Joint
Straight
Catalog Number
With hose barb
Catalog Number
3/16
14/20
3/16
19/22
5/16
14/20
5/16
19/22
5/16
24/40
5/16
29/32
1/2
24/40
1/2
29/32
1/2
34/45
1/2
45/50

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Tubing adapters with stopcock

Glass and PTFE stopcocks are threaded for additional safety and have a 2mm bore for 3/16 in. tubing connection and 4mm bore for 5/16 in. and 1/2 in. tubing connections.
Tubing
o.d. (in.)
Inner
S.T. Joint
PTFE stopcock
Catalog Number
Glass stopcock
Catalog Number
3/16
14/20
3/16
19/22
5/16
14/20
5/16
19/22
5/16
24/40
5/16
29/32
1/2
24/40
1/2
29/32
1/2
34/45
1/2
45/50

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ACCESSORIES

Solid glass plugs


Replace transfer tubing with this plug to make a leakproof Torion seal.
Plug o.d. (in.)
Catalog Number
3/16
5/16
1/2


 
Replacement PTFE-coated sealed rings

I.d. (in.)
Catalog Number
3/16
5/16
1/2


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