TWINFLEX SCREWED TYPE

High Efficiency for Vibration and Noise Isolation
The twin sphere makes the spring constant small, decreases the body natural frequency and increases the efficiency of vibration absorption.

Withstandability
It can withstand a bursting pressure of over 5.0MPa and a maximum working pressure of 1.6MPa and with the combination of excellent formative technique and strong chemical fibre.

Large Displacement Absorption for Eccentricity, Axial Movement and Angular Movement
Since it can absorb large displacement, TWINFLEX screwed type flexible rubber joint is most appropriate for the protection of pipe line system. For example, it can prevent the destruction of connecting pipe due to earthquake and subsidence of ground.

Applicable for both Suction and Delivery
The joint fits for both suction and delivery.

Highly Reliable
The packing parts are strengthened with steel reinforcing rings to prevent the rubber body from slipping out of the fitting sides of flanges.

Convenient to install
When limited space is allowed for installation, the free type sockets can be screwed separately to pipe before fitting in the joint.

Durability
Reciprocating pressure test for 20,000 cycles or above.

● This product is mainly applicable for piping systems in commercial and industrial buildings and plants.
● Applicable fluids are exclusively water including cold water, warm water, cooled water, sea water, etc.
● This product can not be used for drinking water, pool water, oil, or boiled water.

● The material of No.1, 2 & 9 can be changed to SUS304 and SUS316.
● The product is also applicable for oil use by changing the rubber material.
If need be, please contact us.

Nominal Dia.		Dimension [mm]			Mass [Kg]	Union Edge [mm]		Flange [mm]				Allowable Movement [mm]				Installation Tolerances [mm]
mm	inch	L	φd	ℓ		Rc	H	φD	PCD	φh	φOD	T.M.	A.E.	A.C.	A.M.	T.M.	A.E.	A.C.	A.M.
15	1/2	120	25	30	1.7	1/2	41	68	70	11.0	93	15	10	15	15°	6	3	6	7.5°
20	3/4	120	25	30	1.8	3/4	41	68	70	11.0	93	15	10	15	15°	6	3	6	7.5°
25	1	120	25	30	1.9	1	41	68	70	11.0	93	15	10	15	15°	6	3	6	7.5°
32	1 1/4	175	35	35	3.1	1 1/4	50	90	95	13.5	121	20	10	15	20°	8	3	6	7.5°
40	1 1/2	175	35	35	3.3	1 1/2	56	90	95	13.5	121	20	10	15	20°	8	3	6	7.5°
50	2	175	45	40	5.4	2	69	106	110	13.5	135	20	10	15	20°	8	3	6	7.5°

・A.C.: Axial Compression, A.E.: Axial Elongation,
A.M.: Angular Movement, T.M.: Transverse Movement

・Tolerances for installation are included in the allowable movements
(Allowable movements = Tolerances for installation + Operating movements).
・Please note that the information in the above table is for single movement only.
In case of complex movements, please do adjustment by using the following formula.
C.A.E. (C.A.C.) = A.A.E.(A.A.C.) × {1-(T.M / A.T.M. + A.M. /A.A.M)}
C.A.E. (C.A.C.): Correct Elongation Movement (Correct Compression Movement)
A.A.E. (A.A.C.): Allowable Elongation Movement (Allowable Compression Movement)
A.T.M.: Allowable Transverse Movement A.A.M.: Allowable Angular Movement
Example: In case of 50mm joint, if 10mm transverse movement is needed, then the correct elongation should be: C.A.E = 10 × {1- (10/20 + 0/20)} = 5mm
・There is reaction force from rubber joints due to the load of the internal pressure, so during the installation, please use the metal fittings to fix the pipe tightly to ensure the joints work efficiently. In case the pipe cannot be fixed tightly, please use the control unit for the joints.

1.Remove the bolt and disassemble flange A and socket from the main body

2.Put flange A through the counterpart pipe.

3.Screw the socket to the counterpart pipe.

4.Use bolts to connect flange A and B.

Note： The content of this catalog is subject to change without prior notice.