TWINFLEX

Excellent performance for vibration absorption,
displacement absorption and
high-pressure resistance.

Multifunctional double sphere

Application

Vibration absorption for pumps and equipment, absorption of piping eccentricity, expansion and compression, and absorption of stress caused by earthquake

Installation

Air conditioning piping

Specifications

Nominal diameter:	20A – 300A
Maximum working pressure:	1.0MPa{10.2kgf／cm²}
Operating temperature:	-10°C – 70°C
Expansion and compression eccentricity:	15 – 30mm

Feature

Achievements
Having been used in more than 20 countries for over 30 years, TOZEN brand products proudly demonstrate their popularity.
Reliability
Unparalleled durability is guaranteed by the distinctive and strict design standards of TOZEN.
Quality
Manufactured in TOZEN’s own factory under thorough control with ISO9001 quality management system.

Applications

● 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.

Operating Conditions and Performance

● Bursting Pressure
32～150mm:5.0MPa or above at normal temp.
200～300mm:3.5MPa or above at normal temp.
350&400mm:4.0MPa or above at normal temp.

Structure

No.	Parts	Material
1	Flange	Mild Steel / Ductile Iron
2	Reinforcing Ring	Carbon Steel
3	Inner Rubber	Synthetic Rubber
4	Outer Rubber	Synthetic Rubber
5	Reinforcing Cord	Synthetic Fiber

● Flanges with mild steel and ductile iron in JIS10K, ANSI150, PN16 are standard. For other flanges, please consult us.
● Flange material can be changed to SUS304 and SUS316.
● Flange material for 350&400mm is mild steel only.

Dimensions and Allowable Movements
Nominal Dia.		Dimension　[mm]		Mass [Kg]	Allowable Movement　[mm]				Installation Tolerances　[mm]
mm	inch	L	φd	Mass [Kg]	T.M	A.E	A.C.	A.M.	T.M	A.E	A.C.	A.M.
32	1 1/4	175	40	2.2	20	10	20	20°	8	3	6	7.5°
40	1 1/2	175	40	2.3	20	10	20	20°	8	3	6	7.5°
50	2	175	50	3.0	20	10	20	20°	8	3	6	7.5°
65	2 1/2	175	65	3.9	20	10	20	20°	8	3	6	7.5°
80	3	175	75	4.1	20	10	20	20°	8	3	6	7.5°
100	4	225	100	5.3	25	15	30	20°	10	3	6	7.5°
125	5	225	125	7.6	25	15	30	20°	10	3	6	7.5°
150	6	225	150	11	25	15	30	20°	10	3	6	7.5°
200	8	325	200	17	30	20	40	20°	12	3	6	7.5°
250	10	325	250	24	30	20	40	20°	12	3	6	7.5°
300	12	325	300	28	30	20	40	20°	12	3	6	7.5°
350	14	250	340	35	15	15	20	15°	6	3	6	7.5°
400	16	250	390	48	15	15	20	15°	6	3	6	7.5°
450	18	275	440	67	15	15	20	15°	6	3	6	7.5°
500	20	275	490	83	15	15	20	15°	6	3	6	7.5°
600	24	300	590	123	15	15	20	15°	6	3	6	7.5°

※Assembly with ANSI150 flange.

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

・Mass indicates only the case with JIS 10K (Ductile Iron) flanges. However,mass for 350&400mm is with JIS 10K(Mild Steel)flange.
・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 100mm joint, if 10mm transverse movement is needed,
then the correct elongation should be: C.A.E = 15 × {1- (10/25+0/20)} = 9mm
・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.

Note：The contents of this catalogue are subject to change without notice.

TWINFLEX

Twinflex Series