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M.J. Bangkok Valve & Fitting Co., Ltd.

Your Authorized Swagelok Sales and Service Center

Assembly-by-Torque (AbT) Fittings

Assembly-by-Torque AbT Fitting

Offering reliable and repeatable assembly methods, the assembly-by-torque (AbT) fitting assembles quickly. Assembly to a pre-determined torque facilitates reliability and repeatability of fitting assemblies. In tight spaces, the AbT fitting can be assembled by hand, with no special tools required. For difficult-to-reach or confined space applications, preswaging prior to assembly eases installation and speeds up production.

 

Swagelok AbT fittings utilize a unique stop feature, known as a dynamic zone (patented), integrated into the highly-reliable, widely used, Swagelok tube fitting. In all sizes, the design controls axial displacement of the nut during assembly and disassembly.

  

AbT fittings feature a patented dynamic zone feature on the nut which provides a prescribed resistance, at a predetermined position, during the assembly-by-torque installation pull-up. These unique nut and ferrule sets can be assembled to standard Swagelok tube fitting bodies to create an assembly-by-torque tube fitting.

 

         

Features

■ Assembly by torque.

■ Sizes: 1/4 in., 3/8 in., 1/2 in., 6 mm, 8 mm, 10 mm, and 12 mm

■ Meets the requirements of NGV 3.1, ISO 15500, and ECE R110.

■ For use on standard fittings and valve bodies as well as AbT bulkhead bodies. (Not intended for use with standard bulkhead bodies.)

■ Visual confirmation on initial assembly.

 

 

The AbT fitting's design allows for fitting assembly and reassembly like a traditional tube fitting by using a torque wrench.

 

Fractional Tubing Material: 316/316L SS or 304/304L SS

Tube Size

OD x Wall

Initial Assembly Torque Allowable Range in.•lb (N•m)

Reassembly Torque Allowable Range in.•lb (N•m)

1/4 x 0.035 in.

150 ± 13
(17 ± 1.5)

150 ± 13

(17 ± 1.5)

3/8 x 0.049 in.

270 ± 14

(30.5 ± 1.5)

350 ± 17.5

(39.5 ± 2)

1/2 x 0.049 in.

1/2 x 0.065 in.

540 ± 27

(61 ± 3)

700 ± 35

(79 ± 4)

Matric Tubing Material: 316/316L SS or 304/304L SS

Tube Size

OD x Wall

Initial Assembly Torque Allowable Range in.•lb (N•m)

Reassembly Torque Allowable Range in.•lb (N•m)

6 x 1 mm

150 ± 13
(17 ± 1.5)

150 ± 13

(17 ± 1.5)

8mm x 1.0mm

215 ± 11

(24 ± 1.25)

280 ± 14

(31.5 ± 1.5)

10mm x 1.0mm

10mm x 1.5mm

360 ± 18

(40.5 ± 2)

470 ± 23.5

(53 ± 2.5)

12mm x 1.5mm

660 ± 33

(74.5 ± 3.75)

800 ± 40

(90.25 ± 4.5)

              

Assembly by torque brochure

Standardized Pre-assembly For Fast & Repeatable Final Installation

Pre-swaging tube fitting ferrules to the tube prior to assembly eases installation of tube fittings. After pre-swaging, the AbT fitting assembles quickly with commonly available torque tools, facilitating assembly in tight spaces.

 

                 1/4 and 6 mm size pre-swage tools
                         3/8, 1/2, 8mm, 10mm, and 12mm size pre-swage tools 
             

High-volume Swaging Unit (HVSU), available for all AbT sizes