Cajon fittings

Figure 1. Apparatus for sealing NMR tubes (A) cajon fitting (B) vacuum stopcock with teflon plug (C) ground glass joint.

The checker used a 2.5 cm OD double-chamber ampule with a 15 cm length reaction chamber, a 10 cm receiver chamber, and a 0.95 cm OD end tube to which a greaseless vacuum valve was attached via a Cajon fitting. The ampule was flame sealed under vacuum between the receiver chamber and the Cajon fitting. 

Miller, J.C., Kim, H.T., and Parseghian, Z., Feasibility of Carrier-Based Fitness-for-Duty Testing of Commercial Drivers Final Report, ESI-TR-94-003, Evaluation Systems, El Cajon, CA, 1994. 

JThe concentric O-ring fittings are available from Crawford Fitting Co., 29500 Solon Rd.f Solon, OH 44139 (under the trade name of Cajon Ullra-Torr fittings) and Kontes Glass Co. (address in footnote I items K-179900 and K-I799I0). 

Fig. 10.7. Flange tubing connectors, (a) Cajon VCO O-ring sealed Fitting (b) Cajon VCR metal gasketed flange fitting. (Reproduced by permission of the copyright holder, Markad Services Co.)...

Fig. 3.13 The Cajon Ultra-Torr fitting.This illustration of a Cajon Ultra-Torr Fitting is used with permission of Swagelok Co., Solon, Ohio 44139. The illustration was supplied by the Swagelok Co.

Fig. 1 Sources and description of apparatus. (I) Pittsburgh Valve and Fitting Company A, Nupro safety relief valve (100 psi release) 3-6R-4M-100 B, Cajon i in. Tee B-4-T C, Cajon i in. Hex long nipple B-4-HLN(2-l in.) D, Cajon 1 in. Cross B-4-CS E, Whitey Ball Valve B-43M-S4 F, Whitey 1 in. Forged Body Valve B-1VM4-S4 G, Cajon hex reducing nipple, 1 to 4 in. B-4-HRN-2. (II) Mattheson Gas Products H, Standard Guage (2-3% accuracy) 0-100 psig 63-3112. (Ill) Lab Crest Scientific I, Needle Valve adapter 110-957 Rubber washer 110-973 J, Aerosol reaction vessel, 3 oz 110-023-0(X)3.

The tubing and fittings are available from the Cajon Company, Old South Miles Road, Solon, Ohio 44139. 32550... 

Manufactured by the Cajon Company, 9760 Shepard Road, Macedonia, Ohio 44506. An Ultratorr fitting is employed on the inside because it uses a compressed O-ring seal rather than a ferrule lock, allowing the entire probe assembly to be easily removed. For this application the bored-through modification must be specified. 

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