TWINFLEX (Type TWF)
TWF Flanged Double Sphere Rubber Flexible Connector
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. All sizes are available with control sets. Refer to the Product Data Sheets for more information.
The standard product incorporates carbon steel flanges drilled to ANSI 150# specification.
Key Benefits
●Compensate for Axial and lateral movement due to thermal changes.
●Isolate noise and vibration from piping system.
●Floating flange drilled to mate with companion flanges for ease of installation.
●No gasket needed for sealing area
Typical Application
Applicable to all piping systems connected to rotating equipment such as pumps, chillers, cooling towers and condensers.
| Operating Conditions | ||
| Size Range | 1-1/4" to 6" | 8" to 12" |
| Max. Pressure* | 285 psig | 228 psig |
| Oper. Temperature | 14° 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 | Flange | ss400/fcd450 |
| 2 | Reinforcing Ring | Carbona steel(SWRH) |
| 3 | Inner Rubber | Synthetic Rubber |
| 4 | Outer Rubber | Synthetic Rubber |
| 5 | Reinfocing Cord | Synthetic Fiber |
| Dimension and Allowable movements | |||||||
| Pipe Size | Length (L) | Model No. | Allowable Movements* |
Weight & Carton Box Size |
|||
T.M. |
A.E. |
A.C. |
A.M. |
||||
| 1-1/4 " | 7 " | TWF114M | 3/4" |
3/8" |
3/4" |
30° |
7.3 lbs & 0.29 ft3 |
| 1-1/2 " | 7 " | TWF112M | 3/4" |
3/8" |
3/4" |
30° |
8.4 lbs & 0.35 ft3 |
| 2" | 7 " | TWF2M | 3/4" |
3/8" |
3/4" |
30° |
9.7 lbs & 0.40 ft3 |
| 2-1/2 " | 7 " | TWF212M | 3/4" |
3/8" |
3/4" |
30° |
12.2 lbs & 0.46 ft3 |
| 3 " | 7 " | TWF3M | 3/4" |
3/8" |
3/4" |
30° |
13.3 lbs & 0.53 ft3 |
| 4 " | 9 " | TWF4M | 1 | 5/8" |
1-1/4" |
30° |
17.0 lbs & 0.87 ft3 |
| 5 " | 9 " | TWF5M | 1 | 5/8" |
1-1/4" |
30° |
25.4 lbs & 1.15 ft3 |
| 6 " | 9 " | TWF6M | 1 | 5/8" |
1-1/4" |
30° |
32.9 lbs & 1.45 ft3 |
| 8 " | 13 " | TWF8M | 1-1/4" |
3/5" |
1-1/4" |
30° |
43.7 lbs & 2.65 ft3 |
| 10 " | 13 " | TWF10M | 1-1/4" |
3/5" |
1-1/4" |
30° |
67.9 lbs & 4.05 ft3 |
| 12 " | 13 " | TWF12M | 1-1/4" |
3/4" |
1-1/4" |
30° |
82.7 lbs & 5.60 ft3 |
* 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.
Warning : Control units must be used to prevent movement past design limits if piping and equipment connected by this flexible joint are not anchored and guided.
