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Double Sphere Rubber Expansion Joint

8 Inch PN16 Double Sphere SS304 Flange Rubber Joint

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8 Inch PN16 Double Sphere SS304 Flange Rubber Joint

Brand Name:	Lianghe
Model Number:	KST
MOQ:	1 Set
Price:	$22.8-78.9 per set
Packaging Details:	Inside: Plastic Film ，Outside: Wooden Case
Payment Terms:	T/T, D/A, D/P, Western Union, MoneyGram, L/C

Detail Information

Product Description

Detail Information

Place of Origin:

China

Certification:

ISO 9001:2015

Product Name:

8inch PN16 Double Sphere Corrugated Ss304 Flange Connector Coupling Flexible Rubber Joint

Size:

DN25-DN3000

Flange Standard:

DIN JIS GB,etc

Pressure:

PN6,PN10,PN16,125PSI,150PSI

Material Of Rubber:

EPDM,NBR,Hypalon,FKM

Application:

Oil Pipeline 、water Pipeline

Surface Treatment:

Zinc Plated

Supply Ability:

5000 set per month

Highlight:

8 inch PN16 rubber expansion joint

SS304 double sphere flange joint

double sphere rubber joint flange

Product Description

Factory Supply Vulcanized 8inch PN16 Double Sphere Corrugated Ss304 Flange Connector Coupling Flexible Rubber Joint

Double ball rubber joints (also known as double ball rubber flexible connectors or double ball rubber expansion joints) are commonly used flexible connection components in piping systems, playing an important role in shock absorption, noise reduction, and displacement compensation.

As an important component of piping systems, the performance of double ball rubber joints directly affects the safety and reliability of the entire system. Correct selection, standard installation, and regular maintenance are key to ensuring their long-term stable operation.

8 Inch PN16 Double Sphere SS304 Flange Rubber Joint 0

Connecting Data

Nominal diameter		Length (mm)	Center distance	Number of holes-diameter	Axial displacement(mm)		Lateral displacement	Angular displacement
mm	Inch	Length (mm)	Center distance	Number of holes-diameter	Elongation	Compression	Lateral displacement	Angular displacement
40	1 1/2	165	110	4-18	30	50	45	35°
50	2	165	125	4-18	30	50	45	35°
65	2 1/2	175	145	4-18	30	50	45	35°
80	3	175	160	8-18	35	50	45	35°
100	4	225	180	8-18	35	50	40	35°
125	5	230	210	8-18	35	50	40	35°
150	6	325	240	8-22	35	50	40	35°
200	8	325	295	8-22	35	50	40	35°
250	10	325	350	12-22	35	60	35	30°
300	12	325	400	12-22	35	60	35	30°
350	14	350	460	16-22	35	60	35	30°
400	16	350	515	16-26	35	60	35	30°
450	18	350	565	20-26	35	60	35	30°
500	20	350	620	20-26	35	60	35	30°
600	24	400	725	20-30	35	60	35	30°
700	28	400	840	24-30	35	60	35	30°
800	32	400	950	24-30	35	60	35	30°

Through the high elasticity and airtightness of rubber, the following can be achieved in pipeline systems:

1. Absorb axial, lateral, and angular displacement of pipelines.

2. Reduce vibration and noise.

3. Compensate for thermal expansion and contraction caused by temperature changes.

4. Alleviate the impact force generated during system startup.

8 Inch PN16 Double Sphere SS304 Flange Rubber Joint 1

Application Areas

1. Building Plumbing Systems:

Pump inlet and outlet vibration damping
Displacement compensation for high-rise building piping systems

2. Industrial Piping Systems:

Chemical piping medium isolation
Thermal expansion and contraction compensation for heating piping systems
Piping connections for air compressors and refrigeration equipment

3. Municipal Engineering:

Water supply networks
Wastewater treatment systems
Fire protection pipeline systems

4. Special Applications:

Ship pipeline systems
Power plant circulating water systems
Oil transportation pipelines

8 Inch PN16 Double Sphere SS304 Flange Rubber Joint 2

Common Issues and Solutions for Double Ball Rubber Joints in Pipelines

1. Leakage Issues:

Causes: Installation deviation, loose bolts, rubber ageing

Solutions: Re-centre the installation, tighten bolts evenly, replace the joint

2. Premature Ageing:

Causes: Medium corrosion, UV exposure, over-temperature use

Solutions: Select appropriate materials, add protective covers, control operating temperature

3. Abnormal Deformation:

Causes: Overpressure use, excessive displacement

Solutions: Check system pressure, install limit devices

4. Vibration Transmission:

Causes: Improper selection, insufficient pre-compression

Solutions: Re-select type, adjust pre-compression

Tags:

twin sphere rubber expansion joint

double arch expansion joint

double bellow flexible joint