Clamp-type Rubber Expansion Joint
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Clamp-type Rubber Expansion Joint
The Clamp-type Rubber Expansion Joint is a flexible joint designed for easy installation and disassembly. Instead of traditional flanged or threaded connections, this joint uses metal clamps (usually stainless steel) to secure both ends of the rubber bellow to the pipeline. It is widely used in low-pressure systems such as HVAC units, water pumps, drainage lines, and compact piping networks where space is limited and maintenance needs are frequent.
KDT Type Full Faced Molded Rubber Expansion Joint
Features
Precision-molded construction ensures consistent dimensions and a compact, durable design
Full-faced rubber flange offers excellent sealing performance—no gaskets required.
Absorbs axial, lateral, and angular movements effectively.
Rubber materials customizable to suit specific working conditions (EPDM, NBR, Neoprene, etc.)
Flange materials available in carbon steel, stainless steel, galvanized steel, and more
Flange drilling standards can be tailored to match customer installation requirements.
KDT Type Full Faced Molded Rubber Expansion Joint– Size Chart
| Nominal Diameter(mm) | Inch | Length (mm) | Axial Elongation (mm) | Axial Compression (mm) | Lateral (mm) | Angular (°) |
|---|---|---|---|---|---|---|
| DN50 | 2 | 168 | 50 | 30 | 40 | 40° |
| DN65 | 2-1/2 | 168 | 50 | 30 | 40 | 40° |
| DN80 | 3 | 177 | 50 | 30 | 40 | 40° |
| DN100 | 4 | 200 | 50 | 30 | 40 | 35° |
| DN125 | 5 | 220 | 50 | 30 | 40 | 35° |
| DN150 | 6 | 230 | 50 | 35 | 40 | 30° |
| DN200 | 8 | 300 | 60 | 35 | 35 | 30° |
| DN250 | 10 | 300 | 60 | 35 | 35 | 30° |
| DN300 | 12 | 300 | 60 | 35 | 35 | 30° |
| DN350 | 14 | 300 | 60 | 35 | 35 | 30° |
| DN400 | 16 | 300 | 60 | 35 | 35 | 30° |
| DN500 | 20 | 300 | 60 | 35 | 35 | 30° |
| DN600 | 24 | 300 | 60 | 35 | 35 | 30° |
| DN700 | 28 | 300 | 60 | 35 | 35 | 30° |
| DN800 | 32 | 300 | 60 | 35 | 35 | 30° |
| DN900 | 36 | 300 | 60 | 35 | 35 | 30° |
| DN1000 | 40 | 300 | 60 | 35 | 35 | 30° |
| DN1200 | 48 | 400 | 60 | 35 | 35 | 30° |
| DN1400 | 56 | 400 | 60 | 35 | 35 | 30° |
Ordering Information
When ordering Clamp Rubber Expansion Joints, please make sure to confirm the following details to ensure accurate product matching and safe installation:
Nominal Diameter and Pipe Outer Diameter: Clamp-type joints rely on a precise fit to the pipe. Please confirm the exact outer diameter of the connected pipe.
Working Pressure and Temperature: Provide accurate data for system conditions to ensure proper material selection and performance.
Medium Type: Let us know whether the medium is water, air, oil, chemical, or others to choose the suitable rubber compound.
Rubber Material Requirement: Different media and temperatures require different rubber types (e.g., EPDM, NBR, Neoprene).
Installation Environment: If the joint will be used in an outdoor, corrosive, or high-vibration area, please inform us for suitable reinforcement.
Clamp Type and Material: We offer stainless steel or galvanized clamps; let us know if you have special preferences or standards.
Since clamp-type joints rely on flexible sealing and external clamping pressure, proper size matching and clamp tightening are critical to performance and leak prevention.
For technical assistance, custom sizes, or urgent delivery needs, feel free to contact our sales team at [email protected] or via WhatsApp: +86 13032112360.