3 Inch Single Sphere Rubber Expansion Joint (MPN: STX-EXP-SGL3IN) is an industrial-duty component engineered for continuous factory operations, piping systems, and machinery maintenance in Kenya. Key verified ratings include Joint Type: Single Sphere Arch Rubber Expansion Joint, Nominal Pipe Size: 3 Inch (DN80), Flange Rating: DN80 PN16 Flanges. Standard plant applications include Large Pump Suction & Discharge Vibration Isolation, Steam Boiler Condensate & Water Headers, Tea Factory Main Water Lines. Held at our STARNEX counter on Enterprise Road, Nairobi Industrial Area for immediate collection or same-day dispatch. When requesting a quotation, please specify required quantity, operating voltage/phase, pipe connection size, and delivery destination.
3 Inch Single Sphere Rubber Expansion Joint
3 Inch Single Sphere Rubber Expansion Joint (MPN: STX-EXP-SGL3IN) is an industrial-duty component engineered for continuous factory operations, piping systems, and machinery maintenance in Kenya. Key verified ratings include Joint Type: Single Sphere Arch Rubber Expansion Joint, Nominal Pipe Size: 3 Inch (DN80), Flange Rating: DN80 PN16 Flanges. Standard plant applications include Large Pump Suction & Discharge Vibration Isolation, Steam Boiler Condensate & Water Headers, Tea Factory Main Water Lines. Held at our STARNEX counter on Enterprise Road, Nairobi Industrial Area for immediate collection or same-day dispatch. When requesting a quotation, please specify required quantity, operating voltage/phase, pipe connection size, and delivery destination.
Functional engineering application
The 3 Inch (DN80) Single Sphere Rubber Expansion Joint is a heavy-duty flexible pipe connector designed for 3" industrial water supply lines, boiler headers, pump suctions, and chiller systems. Constructed from high-grade EPDM rubber with synthetic nylon cord reinforcement, this 3" joint absorbs pipe expansion, structural settling, and high-frequency pump vibration up to 16 Bar pressure at 110°C.
Industrial 3" (DN80) PN16 single sphere EPDM rubber expansion joint with galvanized steel flanges for vibration isolation & thermal pipe movement.
Quotation & fulfilment
Parametric technical attributes
| Generic STX-EXP-SGL3IN | |
| IDENTIFICATION | |
| Component Type | 3 Inch Single Sphere Rubber Expansion Joint |
| Manufacturer / Brand | Generic |
| Part Number (MPN) | STX-EXP-SGL3IN |
| Stock Keeping Unit (SKU) | STX-EXP-SGL3-056 |
| TECHNICAL PARAMETERS | |
| Joint Type | Single Sphere Arch Rubber Expansion Joint |
| Reinforcement | Nylon Cord & Steel Wire Rings |
| Face-to-Face Length | 130 mm |
| Weight | 5.2 kg |
| Country of Manufacture | International OEM Standard |
| CONSTRUCTION & CONNECTION | |
| Nominal Pipe Size | 3 Inch (DN80) |
| Flange Rating | DN80 PN16 Flanges |
| Elastomer Material | High Grade EPDM Rubber |
| Flange Material | Electro-Galvanized Carbon Steel |
| PERFORMANCE & RATINGS | |
| Pressure Rating | 16 Bar (232 PSI) |
| Temperature Rating | -10°C to +110°C |
| COMPLIANCE & LOGISTICS | |
| Stock Availability | On request |
System fitment & verified replacements
Interchangeable models
Commonly installed on equipment from
Common questions on this part
The face-to-face length is 130 mm.
Rated for 16 Bar (PN16) operating pressure.
Yes, stocked at STARNEX Nairobi Industrial Area.
Yes, up to 110°C continuous temperature.
Yes, standard DN80 PN16 8-bolt flange drilling.
Total weight is 5.2 kg.
Yes, eliminates vibration transmission into pipes.
Yes, ideal for HVAC chilled water lines.
Yes, control rod kits can be bolted on.
Vacuum rated to 700 mmHg.
