Rubber Expansion · Shock Absorption · Flexible Connection

Single Sphere Rubber Expansion Joints for Pipeline Vibration and Noise Control

PN10/PN16, 150LB, JIS10K — sizes 1-1/4″ to 120″ (DN32~DN3000mm), available in NR, CR, NBR, EPDM, IIR, and FKM with flange or threaded connections.

Overview

Single sphere expansion rubber joint is also known as shock absorber, pipe shock absorber, shock proof box and soft joint. It is a pipe joint of high-flexibility, high-gas tightness, resistance to medium and climate. Flowspec Luokai rubber expansion joints has five types: single sphere rubber expansion joints, double sphere rubber expansion joints, threaded rubber expansion joints, reduced rubber expansion joints and rubber bending joint. There are two kinds of connections: flange and threaded. The rubber expansion joints is widely used in water supply and drainage, recycled water, air conditioning and heating, fire control, shipping, water pump, and compressor, etc. Flowspec Luokai can manufacture and supply the single sphere expansion rubber joint according to the standard ANSI, JIS, DIN, BS with sizes of 1-1/4″ ~ 120″ (DN32~DN3000mm). Welcome to contact us for detailed information and best quotes if you have any questions or inquiries.

1. Features

Reduce pipeline system vibration and noise
Good sealing, light weight, easy installation, long service life
Solve the problem of axial movement, transverse movement, angular movement
Acid resistance, alkali resistance, corrosive resistance, oil resistance, heat resistance
If use on overhead, can match with elastic support to tighten up
If pipeline pressure is high, use bolt connect the flange both ends

2. Technical Specifications

PN10 / PN16 / 150LB / JIS10K
Size: 1-1/4″ ~ 120″ (DN32~DN3000mm)
Materials: NR, CR, NBR, EPDM, IIR, FKM
Applicable medium: water, sea water, sewage, petroleum, acid, alkali
Applicable temperature: -15℃ ~ +115℃ (higher temperature is available upon request)

3. Standards

Design & manufacturing: ANSI, JIS, DIN, BS
Face to face: manufacturer’s
Flanged ends: ANSI, JIS, DIN, BS, EN1092
Inspection & testing: manufacturer’s

4. Applications

Water supply and drainage
Recycled water system
Air conditioning and heating
Fire fighting
Shipping
Pump station
Compressor system
Steel works

Performance Data

Item	KXT-1	KXT-2	KXT-3
Working Pressure (MPa)	1.0	1.6	2.5
Burst Pressure (MPa)	2.0	3.0	4.5
Vacuum (KPa)	53.3	86.7	100
Applicable Temperature (℃)	-20℃ ~ +115℃ (-30℃ ~ +250℃ is available)
Applicable Mediums	Air, Compressed Air, Water, Sea Water, Hot Water, Oil, Acid, Alkali

Parts and Materials

No.	Part	Material
1	Flange	Mild Steel, Ductile Iron, S.S.304, S.S.316
2	Reinforcing Ring	Carbon Steel
3	Inner Rubber	NR, CR, NBR, EPDM, IIR, FKM
4	Outer Rubber	NR, CR, NBR, EPDM, IIR, FKM
5	Reinforcing Cord	Synthetic Fiber

Main Connection Dimensions

DN (mm)	DN (inch)	L	Axial Elongation	Axial Compression	Transverse	Angle (a1+a2)°	Special Movement
32	1.25	95	6	9	9	15	130/150
40	1.5	95	6	10	9	15	130/150
50	2	105	7	10	10	15	130/150/200
65	2.5	115	7	13	11	15	130/150/200
80	3	135	8	15	12	15	130/150/200
100	4	150	10	19	13	15	130/200
125	5	165	12	19	13	15	130/150/200
150	6	180	12	20	14	15	130/150/200
175	7	200	12	20	14	15	/
200	8	200	16	25	22	15	130/150/210
225	9	200	16	25	22	15	/
250	10	230	16	25	22	15	130/150/200
300	12	245	16	25	22	15	130/150/200
350	14	255	16	25	22	15	130/150/200
400	16	255	16	25	22	15	200
450	18	255	16	25	22	15	200
500	20	255	16	25	22	15	200
550	22	255	16	25	22	15	/
600	24	260	16	25	22	15	200
700	28	260	16	25	22	15	/
800	32	260	16	25	22	15	/
900	36	260	16	25	22	15	/
1000	40	260	18	26	24	15	/
1200	48	260	18	26	24	15	/
1400	56	350	20	28	26	15	/
1600	64	350	25	35	30	10	/
1800	72	350	25	35	30	10	/
2000	80	350	25	35	30	10	/
2200	88	400	25	35	30	10	/
2400	96	400	25	35	30	10	/
2600	104	400	25	35	30	10	/
2800	112	400	25	35	30	10	/
3000	120	400	25	35	30	10	/