Rubber Expansion Joint

Clamp Type Rubber Expansion Joint
1. Bolt-free stainless steel clamp installation — no flange bolts, no gaskets, no torque wrenches required.
2. Compact, lightweight design for tight spaces and retrofit of existing rigid pipelines.
3. Zero thrust reaction — compensates axial/lateral movement without transferring forces to pipe anchors.
4. Compatible with multiple pipe materials: steel, PVC/CPVC, FRP, and ductile iron.
5. Bore range DN25–DN1000 for low-pressure fluid handling up to 0.4 MPa (PN4).
6. Available in EPDM and NBR with optional SS304 or SS316 clamp bands.
7. Slip-on coupling reduces installation time by up to 70% compared to traditional flanged joints.
8. Ideal for pump suction/discharge, industrial drainage, HVAC risers, and fire protection piping.
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Double Sphere Rubber Expansion Joint
1. Dual-convolution design delivers 2x axial and lateral displacement of equivalent single sphere models.
2. Absorbs up to 60 mm axial compression and 40 mm extension for large thermal movement applications.
3. Reduces noise transmission by 20–35 dB(A) — superior acoustic isolation for pump rooms and mechanical floors.
4. Handles full vacuum applications up to 700 mmHg without collapse or deformation.
5. Wide bore range DN32–DN3000 for municipal water, power plants, and industrial process pipelines.
6. Multi-standard flange compatibility: ANSI B16.5, DIN, BS, JIS, EN1092.
7. Available in EPDM, NBR, Neoprene with high-tensile synthetic cord reinforcement.
8. Tight-radius installation capable — compresses up to 30% of face-to-face length.
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Hand-built Rubber Expansion Joint
1. Custom-engineered, non-molded construction for oversized diameters and non-standard piping configurations.
2. Multi-layer high-tensile synthetic cord + steel ring reinforcement for extreme pressures up to 25 Bar.
3. Full vacuum capability — ideal for condenser water boxes and suction-side installations.
4. Bore range DN200–DN4000, unlimited custom diameters and face-to-face lengths available on request.
5. Tailored elastomer liners: EPDM, NBR, Butyl, Neoprene for specific chemical resistance and temperature demands.
6. Operating temperature range –40°C to +150°C with appropriate material selection.
7. Lab-tested uniform wall thickness ensures consistent flexibility and extended service life.
8. Engineered for cooling water systems, desalination plants, mining slurry, and chemical processing.
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Rubber Lined Rubber Expansion Joint
1. Chemically inert PTFE (F4) or FEP (F46) lining resists aggressive acids, alkalis, and organic solvents.
2. Dual-layer construction: PTFE inner barrier + EPDM/NBR outer body combines chemical resistance with flexibility.
3. Self-cleaning non-stick surface eliminates scaling, fouling, and product adhesion.
4. Carbon steel backing flange provides structural rigidity at connection points.
5. Bore range DN32–DN600, meeting GB/T 26121 standard with ANSI/DIN/JIS flange compatibility.
6. Temperature range –30°C to +150°C, vacuum-rated with optional vacuum ring for negative-pressure service.
7. Available with flanged or union-end connections for drop-in replacement of rigid spool pieces.
8. Engineered for pickling lines, FGD desulfurization, semiconductor wet stations, and pharmaceutical CIP systems.
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Single Sphere Rubber Expansion Joint
1. Reduce pipeline vibration and absorb axial, lateral, and angular displacement.
2. Suppress sound transmission by 15–25 dB(A) through rubber acoustic damping.
3. Compensate for thermal expansion and contraction in rigid metal piping systems.
4. Wide material selection: EPDM, NBR, Neoprene, Natural Rubber for diverse media compatibility.
5. Full bore range DN32–DN5000 with PN10/PN16/PN25 and Class 150/300 pressure ratings.
6. 3:1 safety factor — burst pressure ≥ 300% of working pressure rating.
7. Multi-standard flange drilling: ANSI, DIN, BS, JIS, EN1092.
8. Most cost-effective flexible connector for HVAC, water treatment, power generation, and marine systems.
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