Specifications
Brand Name :
Lianghe
Model Number :
KST
Certification :
ISO 9001:2015
Place of Origin :
China
MOQ :
1 Set
Price :
$22.8-78.9 per set
Payment Terms :
T/T, D/A, D/P, Western Union, MoneyGram, L/C
Supply Ability :
5000 set per month
Delivery Time :
7-15 work days
Packaging Details :
Inside: Plastic Film ,Outside: Wooden Case
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
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

Connecting Data

Nominal

diameter

Length

(mm)

Center distance Number of holes-diameter Axial displacement(mm) Lateral displacement Angular displacement
mm Inch Elongation Compression
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

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

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

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8 Inch PN16 Double Sphere SS304 Flange Rubber Joint

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Brand Name :
Lianghe
Model Number :
KST
Certification :
ISO 9001:2015
Place of Origin :
China
MOQ :
1 Set
Price :
$22.8-78.9 per set
Contact Supplier
8 Inch PN16 Double Sphere SS304 Flange Rubber Joint
8 Inch PN16 Double Sphere SS304 Flange Rubber Joint

Henan Lianghe Pipeline Equipment Co.,Ltd

Verified Supplier
1 Years
henan
Since 2003
Business Type :
Manufacturer
Total Annual :
40000000-60000000
Employee Number :
100~150
Certification Level :
Verified Supplier
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