TWINFLEX Union Type (Type TWU)
TWINFLEX Union Type Flexible Rubber Joint
This double sphere TWINFLEX rubber joint allows increased compression, elongation and angular movement. The unique double sphere design improves noise and vibration isolation and dampens hydraulic surge and shock. Refer to the Product Data Sheets for more information.
Key Benefits
●Compensate for Axial and lateral movement due to thermal changes.● Isolate noise and vibration from piping system. ●Complete union assembly provided for ease of installation.
● No gasket needed for sealing area.
Typical Application
●TWINFLEX union type joints are used for connecting pipes and equipment where threaded union ends are preferred.
| Operating Conditions | |
| Size Range | 1/2" to 2" |
| Max. Pressure* | 142 psig |
| Oper. Temperature | 14°F to 158°F14°F to 158°F |
| Vacuum Rating* | 25"Hg |
| rst Pressure* | Greater than 780 psig |
* at normal temperature of 80°F
| Material of Construction | ||
| Item | Component | Material |
| 1、2 | Flanges | Ductile Iron |
| 3 | Nut | Mild Steel |
| 4 | Bolt | Mild Steel |
| 5 | Inner/Outer Rubber | Neoprene |
| 6 | Union Edge | Ductile Iron |
| 7 | Washer | Mild Steel |
| 8 | Reinforcing Fabric | Synthetic Fiber |
| Dimension and Allowable movements | ||||||
Model No. |
Pipe Size |
Length (L) |
Allowable Movements* |
|||
T.M. |
A.E. |
A.C. |
A.M. |
|||
| TWU12 | 1/2" |
7" |
5/8" |
3/8" |
5/8" |
20° |
| TWU34 | 3/4" |
7" |
5/8" |
3/8" |
5/8" |
20° |
| TWU1 | 1" |
7" |
5/8" |
3/8" |
5/8" |
20° |
| TWU114 | 1-1/4 " |
9-5/8" |
3/4" |
3/8" |
3/4" |
30° |
| TWU112 | 1-1/2" |
9-5/8" |
3/4" |
3/8" |
3/4" |
30° |
| TWU2 | 2" |
10" |
3/4" |
3/8" |
3/4" |
30° |
* Information in the above table is for single movement only. In case of complex movements, some correction is required as follows.
C.EL(C) =A.EL(C)X{1-( T.M. /A.T.M. + A.M. /A.A.M. )}
T.M. = Transverse Movement,
A.E. = Axial Elongation,
A.C. = Axial Compression,
A.M. = Angular Movement.
C.EL(C) = Correct Elongation (Compression)
A.EL(C) = Allowable Elongation (Compression)
A.T.M. = Allowable Transverse Movement
A.A.M. = Allowable Angular Movement
Install the joint according to the above given allowable dimensions.
Tozen product specifications reflect the design at time of printing.
Tozen reserves the right to change or modify product design, construction,
specifications, or materials without notice. Please contact us for certified prints when necessary.
