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Tube Fitting Reducing Union

Truelok Ordering Number	T Tube O.D.	Tx Tube O.D.	A	D	Dx	E Minimum Opening	F Hex Flat	G Hex Flat	Gx Hex Flat	H
	inch	inch	inch	inch	inch	inch	inch	inch	inch	inch
RU-125-062	1/8	1/16	1.22	0.50	0.34	0.05	7/16	7/16	5/16	0.81
RU-250-125	1/4	1/8	1.52	0.60	0.50	0.09	1/2	9/16	1/16	0.97
RU-375-125	3/8	1/8	1.61	0.66	0.50	0.09	5/8	11/16	7/16	1.06
RU-375-250	3/8	1/4	1.70	0.66	0.60	0.19	5/8	11/16	9/16	1.12
RU-500-125	1/2	1/8	1.78	0.90	0.50	0.09	13/16	7/8	7/16	1.12
RU-500-250	1/2	1/4	1.85	0.90	0.60	0.19	13/16	7/8	9/16	1.16
RU-500-375	1/2	3/8	1.91	0.90	0.66	0.28	13/16	7/8	11/16	1.22
RU-750-250	3/4	1/4	1.93	0.96	0.60	0.19	1-1/16	1-1/8	9/16	1.25
RU-750-375	3/4	3/8	2.0	0.96	0.66	0.28	1-1/16	1-1/8	11/16	1.31
RU-750-500	3/4	1/2	2.11	0.96	0.90	0.41	1-1/16	1-1/8	7/8	1.31
RU-1000-500	1	1/2	2.49	1.23	0.90	0.41	1-3/8	1-1/2	7/8	1.61
RU-1000-750	1	3/4	2.47	1.23	0.96	0.62	1-3/8	1-1/2	1-1/8	1.59

Material:
Truelok standard Compression Tube Fittings are manufactured by using SS316 Bar Stock in accodance with ASTM A-479 and SS316 Forging in accordance with ASTM A-182. Fittings in other materials are available at customer's request.

Operating Temperature:
Truelok Compression Tube Fittings provide safe and reliable performance from cyrogenic temperature to high temperature upto 380 °C.

Working Pressure:
The maximum working pressure of standard Compression Tube Fittings when used in conjunction with annealed SS316 seamless tubing per ASTM A-213 or equivalent is shown below:

Tube O.D. (inch)	Wall Thickness (inch)
Tube O.D. (inch)	0.020	0.028	0.035	0.049	0.065	0.083
1/8"	6863	9967	12641
1/4"		4600	5891	8602	11688
3/8"			3777	5460	7571
1/2"			2768	3976	5423	7162