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Truelokreg Compression Tube Fitting Unions straight and 90 degree angled uninos are manufactured by using SS316 Bar Stock in accodance with ASTM A479 and SS316 90 degree Tube Fitting Union forged in accordance with ASTM A182 Fittings Unions in other materials are also available

Tube Fitting Union (Straight)

Truelok

Ordering Number

T

Tube O.D.

A

C

D

E

Minimum Opening

F

Hex Flat

G

Hex Flat

H

 

inch

inch

inch

inch

inch

inch

inch

inch

U-062

1/16

0.99

-

0.34

0.05

5/16

5/16

0.69

U-125

1/8

1.40

0.60

0.50

0.09

7/16 

 7/16

0.88

U-250

1/4 

1.61

0.70

0.60

0.19

1/2 

9/16 

1.03

U-375

3/8 

1.77

0.76

0.66

0.28

5/8 

11/16 

1.19

U-500

1/2 

2.02

0.86

0.90

0.41

13/16

7/8 

1.22

U-750

3/4

2.11

0.86

0.95

0.75

1-1/16

1-1/8

1.30

U-1000

1

2.55

1.03

1.22

0.87

1-3/8

1-1/2

1.58

 

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

Operating Temperature:
Truelok® Compression Tube Fitting Unions 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 Unions 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)
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