Elbows, Tees, Crosses, Couplings, and Bulkheads to 20000 psi (1379 bar).
Autoclave's medium pressure coned and threaded fittings for use with 1/4" to 1 1/2" tubing rated to 20000 psi (1379 bar).

Standard length Tubing Nipples to 20000 psi (1379 bar).
Standard coned and threaded nipples 1/4" to 1 1/2" in lengths from 2.75" (69.9 mm) to 12.0" (304.8 mm).

O-ring and Ball Check Valves, and Excess Flow Valves to 20000 psi (1379 bar).
Check valves to provide unidirectional flow with back flow shut-off for liquids of gases. Excess flow valves available in ball design for surge protection.

Dual-Disc and Cup Filters to 20000 psi (1379 bar).
Dual-Disc filters used to trap larger particles in first filter to prevent clogging of smaller filter. Cup filters are used for high flow rates and provide maximum filter area.

Autoclave Engineers offers a complete selection of austenitic, cold drawn stainless steel tubing designed to match the performance standards of Autoclave valves and fittings. Autoclave medium pressure tubing is manufactured specifically for high pressure applications requiring both strength and corrosion resistance. The tubing is furnished in random lengths between 20 feet (6 meters) and 27 feet (8.2 meters). The average is 24 feet (7.3 meters). Medium Pressure Tubing is available in five sizes and a variety of materials.

Inspection and Testing
Autoclave Engineer’s high pressure tubing is inspected to assure freedom from seams, laps, fissures or other flaws, as well as carburization or intergranular carbide precipitation. The outside and inside diameters of the tubing are controlled within close tolerances. Sample pieces of tubing for each lot are tested to confirm mechanical properties. Hydrostatic testing is also performed on a statistical basis and is conducted at the working pressure of the tube. Autoclave will perform 100% hydrostatic testing at additional cost if desired.

Special Materials
In addition to the type 316 and 304 stainless steel tubing listed in this section, Autoclave has limited stock of hard-to-obtain shorter lengths of the following tubing materials: Monel 400*, Inconel 600*, Titanium Grade 2*, Nickel 200*, Hastelloy C276* - (* Trademark names)

Please consult factory for stock available.

Note: Caution should be exercised in proper selection of Medium Pressure Tubing based on actual operating conditions. Two series available: 15000 psi (1034 bar) and 20000 psi (1379 bar).

All dimensions for reference only and subject to change.
For prompt service, Autoclave stocks select products. Consult your local representative.
All general terms and conditions of sale, including limitations of our liability, apply to all products and services sold.

Series KCBGLX - Sizes to 1-1/2” (38.10 mm), Pressures to 20000 (1379 bar)

For extreme conditions of vibration and/or shock in tubing systems, such as an unsupported line near a compressor, coned and-threaded connections are offered with the Autoclave antivibration collet gland assembly. Completely interchangeable with standard Autoclave Engineers medium pressure connections, the collet gland assembly provides equally effective pressure handling capability.

In standard connection systems, the bending stresses on the threaded area of the tubing imposed by excessive vibration or movement may cause premature fatigue failure of the tubing at the back of the thread. By moving the stress concentration back to the unthreaded part of the tubing and providing a wedge-type gripping action, the Autoclave Engineers anti-vibration collet gland assembly strengthens the entire structure. With stress concentration reduced and overall stress level maintained well below the endurance limit of the material, the result is virtually unlimited vibrational fatigue life.

A less complex and more economical design than other vibration-resistant connections, the collet gland assembly utilizes the same coned-and-threaded features of Autoclave medium pressure connections. Series KCBGLX extends the gland nut to provide room for the tapered slotted collet. The design provides a slight difference in angles between the collet and the corresponding taper of the gland nut. As the nut is tightened, it acts to wedge the tapered end of the collet into a gripping engagement with the tubing.

Materials Type 316 stainless steel with bonded dry film (316 MC) moly lubricant.
Note: Special material assemblies may be supplied with four flats in place of standard hex.

Standard Autoclave Engineers collar not included in complete assembly.

All dimensions for reference only and subject to change.
For prompt service, Autoclave stocks select products. Consult your local representative.
All general terms and conditions of sale, including limitations of our liability, apply to all products and services sold.