Henan Lianghe Pipeline Equipment Co.,Ltd

Henan Lianghe Pipeline Equipment Co.,Ltd

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Rubber Coupling Stainless Steel Flange End Face Fully Sealed Flexible Connector Rubber Expansion Joint

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Country/Region:china
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Rubber Coupling Stainless Steel Flange End Face Fully Sealed Flexible Connector Rubber Expansion Joint

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Brand Name :Lianghe
Model Number :KDTF
Certification :ISO 9001:2015
Place of Origin :China
MOQ :1 Set
Price :$16.9-$89.5 set per month
Payment Terms :T/T, D/A, D/P, L/C, Western Union, MoneyGram
Supply Ability :2000 per month
Delivery Time :5-15work days
Packaging Details :Inside: Plastic Film ,Outside: Wooden Case
Product name :End Face Fully Sealed Flexible Connector Rubber Expansion Joint
Nominal Diameters :DN15-DN4000
Overall Length :Support customization
Flange material :SS,CS,CS galvanized,ductile iron,PPH (PN10, PN16)
Pressure :PN6 - PN40
Flange standard :DIN PN10,PN16,PN25/ANSI 150LB,300LB/JIS 10K,etc.
Pipe Features :Flexible, Corrosion Resistant, Chemical Resistant
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Rubber Coupling Stainless Steel Flange End Face Fully Sealed Flexible Connector Rubber Expansion Joint

Flanged rubber joints (also known as flanged rubber joints, rubber flange flexible joints) are a common pipe connection component, mainly used to absorb pipe vibration, compensate for displacement and reduce noise.

Structure and composition
Rubber body: usually made of oil-resistant, corrosion-resistant, and high-temperature resistant rubber (such as NBR, EPDM, CR, etc.).

Reinforcement layer: multiple layers of polyester cord or steel wire skeleton to improve pressure bearing capacity.

Flanged part: the edge of the rubber joint is folded outward, fits with the flange, and is fixed by bolts.

Flange: mostly made of carbon steel or stainless steel, connected to the pipeline flange.

Rubber Coupling Stainless Steel Flange End Face Fully Sealed Flexible Connector Rubber Expansion Joint

Main features
Good sealing: The flange design increases the contact area to prevent medium leakage.

Shock absorption and noise reduction: The rubber elasticity absorbs pipeline vibration and impact.

Compensation displacement: It can be displaced axially, laterally or angularly to alleviate thermal expansion and contraction or installation errors.

Pressure and temperature resistance: The working pressure is usually 0.6~2.5MPa, and the temperature range is -20℃~120℃ (depending on the material).

Rubber Coupling Stainless Steel Flange End Face Fully Sealed Flexible Connector Rubber Expansion Joint

Main connection dimension
Nominal diameter

Length

(mm)

Axial displacement Horizontal movement Deflection angle
mm Inch Extension Compression
32 1 1/4 95 6 9 9 15°
40 1 1/2 95 6 10 9 15°
50 2 105 7 10 10 15°
65 2 1/2 115 7 13 11 15°
80 3 135 8 15 12 15°
100 4 150 10 19 13 15°
125 5 165 12 19 13 15°
150 6 180 12 20 14 15°
200 8 210 16 25 22 15°
250 10 230 16 25 22 15°
300 12 245 16 25 22 15°
350 14 255 16 25 22 15°
400 16 255 16 25 22 15°
450 18 255 16 25 22 15°
500 20 255 16 25 22 15°
600 24 260 16 25 22 15°
700 28 260 16 25 22 15°
800 32 260 16 25 22 15°

Common types
Single ball flanged rubber joint: suitable for general pipes.

Double ball flanged rubber joint: larger compensation and stronger flexibility.

Reducing diameter flanged rubber joint: connects pipes of different diameters.

Acid and alkali resistant/high temperature resistant type: special rubber material adapts to harsh environments.

Single sphere rubber joint Double sphere rubber joint

Rubber Coupling Stainless Steel Flange End Face Fully Sealed Flexible Connector Rubber Expansion JointRubber Coupling Stainless Steel Flange End Face Fully Sealed Flexible Connector Rubber Expansion Joint

Reducing rubber joint Food grade rubber joint

Rubber Coupling Stainless Steel Flange End Face Fully Sealed Flexible Connector Rubber Expansion JointRubber Coupling Stainless Steel Flange End Face Fully Sealed Flexible Connector Rubber Expansion Joint

Difference from ordinary rubber joints

Pressure bearing capacity: The flange structure is more suitable for high-pressure occasions.

Installation method: The flange joint is directly fixed by flange bolts

Selection points
Medium: Select matching rubber material (such as EPDM acid and alkali resistance, NBR oil resistance).

Pressure level: Select according to the system working pressure.

Displacement requirements: Determine the axial, lateral or angular compensation.

Flange standard: Match the national standard (GB), American standard (ANSI), German standard (DIN), etc.

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