Henan Lianghe Pipeline Equipment Co.,Ltd
| Payment Terms | T/T, D/A, D/P, Western Union, MoneyGram, L/C |
| Supply Ability | 6000 set per month |
| Delivery Time | 5-7day |
| Packaging Details | Inside: Plastic Film ，Outside: Wooden Case |
| Product name | DN300 Flange Type NBR Single Sphere Flexible Expansion |
| Size | DN25-DN4000 |
| Pressure | PN6 - PN40 |
| Drawing service | Free Offer |
| Test pressure | 1.5 times of working pressure |
| Explosion pressure | 2 times of working pressure |
| Stock | sufficient |
| Brand Name | Lianghe |
| Model Number | KXT |
| Certification | ISO 9001:2015 |
| Place of Origin | China |
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Product Specification
| Payment Terms | T/T, D/A, D/P, Western Union, MoneyGram, L/C | Supply Ability | 6000 set per month |
| Delivery Time | 5-7day | Packaging Details | Inside: Plastic Film ，Outside: Wooden Case |
| Product name | DN300 Flange Type NBR Single Sphere Flexible Expansion | Size | DN25-DN4000 |
| Pressure | PN6 - PN40 | Drawing service | Free Offer |
| Test pressure | 1.5 times of working pressure | Explosion pressure | 2 times of working pressure |
| Stock | sufficient | Brand Name | Lianghe |
| Model Number | KXT | Certification | ISO 9001:2015 |
| Place of Origin | China | ||
| High Light | DN300 flange type rubber expansion joint ，NBR single sphere compensator joint ，flexible rubber expansion joint with flange | ||
DN300 Flange Type NBR Single Sphere Flexible Expansion Connection Rubber Compensator Joint
A Single Sphere Rubber Expansion Joint (also known as a rubber compensator, flexible rubber joint, or rubber bellows) is a highly flexible piping component designed to absorb movement, reduce vibration, and compensate for misalignment in pipelines while maintaining a leak-proof seal.
Key Features:
Nominal Diameter (DN): 300 mm
Structure Type: Single Sphere Rubber Expansion Joint
Flange Type: Carbon steel or galvanized steel, drilled to ANSI, DIN, JIS or custom standards
Rubber Material: NBR (Nitrile Butadiene Rubber) – Excellent oil resistance
Reinforcement: Multi-layer nylon cord and steel wire for pressure resistance
Design Pressure: Usually PN10 / PN16 / PN25 (confirm as per project)
Movement Capability: Axial compression/extension, lateral offset, angular deflection
Temperature Range: -10°C to +80°C (depending on fluid compatibility)
Product Parameters
| Name of product | DN300 flange type NBR single sphere flexible expansion connection rubber compensator joint |
| Structure of product | Inner and outer rubber,nylon cord fabric,steel wire and flange |
| Material of rubber | EPDM, NR, NBR,PTFE, FKM,etc |
| Material of flange | SS304,SS316,carbon steel, ductile iron,etc |
| Standard of flange | DIN, BS, ANSI, JIS,etc. |
| Product classification | Single sphere , Double sphere, Union type,etc |
The single sphere rubber expansion joint consists of:
Rubber Body (Elastomer): Typically made of NBR (Nitrile Rubber), EPDM, Neoprene, or FKM (Viton) depending on the application.
Reinforcement Layers: Embedded fabric or steel wire to enhance pressure resistance.
Flanges or Pipe Ends: Available in flanged (ANSI, DIN, JIS, etc.) or threaded/sleeve-type connections.
Single Arch (Sphere) Design: Provides flexibility for axial, lateral, and angular movement.
Product details display
Key Functions
✔ Vibration & Noise Damping: Reduces stress from pumps, compressors, and machinery.
✔ Shock Absorption: Protects pipelines from water hammer and pressure surges.
✔ Misalignment Compensation: Allows slight pipe deviations without rigid connections.
✔ Thermal Expansion Compensation: Accommodates temperature-induced pipe expansion/contraction.
✔ Chemical & Corrosion Resistance: Depending on rubber material (e.g., EPDM for acid , NBR for oils).
Rubber Expansion Joint Product Processing
Company Details
Business Type:
Manufacturer
Year Established:
2003
Total Annual:
40000000-60000000
Employee Number:
100~150
Ecer Certification：
Verified Supplier
The company adheres to the business philosophy of "customer satisfaction is our first duty, all employees are responsible for creating quality, continuous improvement sets new heights, honest service builds reputation", and wholeheartedly provides high-quality products and profes... The company adheres to the business philosophy of "customer satisfaction is our first duty, all employees are responsible for creating quality, continuous improvement sets new heights, honest service builds reputation", and wholeheartedly provides high-quality products and profes...
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