MINSTAC
MINSTAC, The Lee Company's Miniature Inert System of Tubing and Components, offers
the ability to precisely control flow rate, pressure, filtration and other performance
factors of aggressive fluids.
Tubing End Connections
(Unless otherwise specified, dimensions are in inches [mm])
(Click on drawing to enlarge)
The basis of the Lee MINSTAC System is the unique Collet-Lock system. Teflon® tubing is chamfered and a specially designed Collet is threaded onto its end. This assembly provides a leak-proof connection from Teflon® tubing to the wide range of MINSTAC components and fittings, all without the problems associated with Teflon's® cold flow characteristics.
Standard tubing assemblies are available from stock with one or two fitting ends installed. Special lengths and fitting assembly tool kits are also available. Please request T.R. 062 for complete assembly instructions and tool kit part numbers.
The standard tubing connection sizes described below are available with a variety of inner diameters, and are capable of satisfying most fluid handling requirements.
062 MINSTAC
The 062 MINSTAC fitting system is for use with 0.062" (1.57 mm) O.D. Teflon® tubing and uses a 0.138-40 UNF fitting end. This system utilizes an internally threaded Collet that grips the outer diameter of the Teflon® tubing end, preventing cold flow. The Coupling Screw acts like a compression fitting and presses the chamfered end of the tubing against one end of the KEL-F® Ferrule. The other end of the Ferrule is pressed against the sealing surface in the boss by the Coupling Screw. This self-aligning fitting provides the smallest most reliable leak proof system on the market today.
(Unless otherwise specified, dimensions are in inches [mm])
(Click on drawing to enlarge)
125 MINSTAC
The 125 MINSTAC fitting system uses 0.125" (3.18 mm) O.D. Teflon® tubing and a 0.25-28 UNF fitting end. The MINSTAC system utilizes an internally threaded Collet sleeve that grips the outer diameter of the Teflon® tubing end, preventing cold flow. The chamfered end of the tubing is pressed against one end of the Ferrule by the Collet. The other end is pressed against the sealing surface in the boss by the Coupling Screw.
(Unless otherwise specified, dimensions are in inches [mm])
(Click on drawing to enlarge)
156 MINSTAC
The 156 MINSTAC fitting system is for use with 0.156" (3.96 mm) O.D. Teflon® tubing and uses a 0.25-28 UNF fitting end. This system utilizes an internally threaded Collet that grips the outer diameter of the Teflon® tubing end, preventing cold flow. The chamfered end of the tubing is pressed against one end of the Ferrule by the Collet. The other end is pressed against the sealing surface in the boss by the Coupling Screw.
(Unless otherwise specified, dimensions are in inches [mm])
(Click on drawing to enlarge)
1/4-28 Flat Bottom MINSTAC
The 1/4-28 Flat Bottom MINSTAC system is for use with 0.156" (3.96mm) O.D. Telfon® tubing and uses a 0.25-28 UNF fitting end. This system utilizes an internally threaded Collet that grips the outer diameter of the Teflon® tubing end, preventing cold flow. The chamfered end of the tubing is pressed against one end of the Ferrule by the Collet. The other end is pressed against the sealing surface in the boss by the Coupling Screw. This system will work with standard 1/4-28 flat bottom fittings.
