Tecofi DI7140N Flexible Rubber Connector
DI7140N is a Tecofi BSP female-threaded rubber expansion joint with EPDM bellows and malleable cast iron ends, DN15-DN50, 200 mm long, 20° angular movement, for hot and cold water pipes.
- Brand Tecofi
- Origin France
- Type Rubber expansion joint, female threaded
- Size range DN15 to DN50
- Genuine products
- Full CO/CQ
- VAT invoice
- Quote within 24 working hours
PRODUCT DESCRIPTION
Tecofi DI7140N Flexible Rubber Connector
DI7140N is a Tecofi (France) female-threaded rubber expansion joint: EPDM bellows, two malleable cast iron BSP female ends, DN15 to DN50, for hot and cold water. This page covers DI7140N only; DI7140A has the same size range and length but uses ACS EPDM, epoxy-coated ends, is for drinking water, and absorbs a larger angular movement.
Specifications
- Type: Rubber expansion joint, female threaded
- Size range: DN15 to DN50
- Bellows: EPDM rubber
- Reinforcement: Nylon tyre cord
- Ends: Malleable cast iron, BSP female thread to ISO 228-1
- Fluids: Hot and cold water
- Length L: 200 mm
- Movements: Lc 22 mm, Le 6 mm, Li 22 mm, angle 20°
- Pressure test: To EN 12266-1, DIN 3230 and ISO 5208
| DN (mm) | BSP thread (inch) | L (mm) | Bore E (mm) | Lc (mm) | Le (mm) | Li (mm) | A (°) | Weight (kg) | Ref. |
|---|---|---|---|---|---|---|---|---|---|
| 15 | 1/2″ | 200 | 14-18 | 22 | 6 | 22 | 20 | 0.70 | DI7140N-0015 |
| 20 | 3/4″ | 200 | 18-21 | 22 | 6 | 22 | 20 | 0.75 | DI7140N-0020 |
| 25 | 1″ | 200 | 23-25 | 22 | 6 | 22 | 20 | 1.22 | DI7140N-0025 |
| 32 | 1″1/4 | 200 | 29-32 | 22 | 6 | 22 | 20 | 1.51 | DI7140N-0032 |
| 40 | 1″1/2 | 200 | 35-38 | 22 | 6 | 22 | 20 | 2.03 | DI7140N-0040 |
| 50 | 2″ | 200 | 44-48 | 22 | 6 | 22 | 20 | 2.62 | DI7140N-0050 |
Lc: axial compression; Le: axial elongation; Li: lateral movement; A: angular movement (per the datasheet).
Difference from DI7140A
- Materials: DI7140N has EPDM bellows and malleable cast iron ends; DI7140A has ACS EPDM and malleable cast iron ends with a 50 µm epoxy coating.
- Fluids: DI7140N states hot and cold water; DI7140A states drinking water.
- Angular movement: DI7140N absorbs 20°; DI7140A absorbs 40° (Lc, Le, Li are the same).
- Working conditions: the DI7140A datasheet states a maximum pressure of 16 bar and a temperature of -40°C / +120°C; the DI7140N datasheet states no working pressure or temperature, so none is given for DI7140N on this page.
- Weights differ (for example DN15: 0.70 kg vs 0.45 kg; DN50: 2.62 kg vs 2.54 kg).
Applications
Reduces mechanical and thermal stress on pipes and related equipment (pumps, compressors, motors); absorbs vibration and noise; compensates axial, lateral and angular movement; corrects piping misalignment. Fluids: hot and cold water (per the datasheet).
Standards / Certifications
BSP female threaded ends to ISO 228-1; pressure tests to EN 12266-1, DIN 3230 and ISO 5208. The datasheet has a “Product approvals” heading but lists no specific approval.
What to send for a quote
- Code DI7140N
- Size DN (DN15 to DN50) and BSP thread
- Medium, working pressure and temperature
- The movements to absorb (axial, lateral, angular)
- Quantity
CAD replies with a quote within 24 working hours.
Technical documentation (datasheet)
TECHNICAL SPECIFICATIONS
Specifications of Tecofi DI7140N Flexible Rubber Connector
| PARAMETER | VALUE |
|---|---|
| Model | DI7140N |
| Brand | Tecofi |
| Origin | France |
| Type | Rubber expansion joint, female threaded |
| Size range | DN15 to DN50 |
| Bellows | EPDM rubber |
| Reinforcement | Nylon tyre cord |
| Ends | Malleable cast iron, BSP female thread to ISO 228-1 |
| Fluids | Hot and cold water |
| Length L | 200 mm |
| Movements | Lc 22 mm, Le 6 mm, Li 22 mm, angle 20° |
| Pressure test | To EN 12266-1, DIN 3230 and ISO 5208 |
Specifications may vary with the ordered configuration. Contact a CAD engineer for sizing to your actual operating conditions.
OTHER CODES IN THE RANGE
Same series
FAQ
Frequently asked questions about DI7140N
How does DI7140N differ from DI7140A?
DI7140N has EPDM bellows, absorbs 20° of angular movement and is for hot and cold water. DI7140A has ACS EPDM, epoxy-coated ends, absorbs 40°, is for drinking water, and its datasheet states 16 bar and -40°C / +120°C.
What size range, thread and length does DI7140N have?
DN15 to DN50, two malleable cast iron BSP female ends to ISO 228-1 (1/2" to 2"), length L 200 mm.
What movements does DI7140N absorb?
Per the datasheet: 22 mm axial compression, 6 mm axial elongation, 22 mm lateral movement and 20° angular movement.
What is needed for a quote on DI7140N?
Send the code, DN, medium, working pressure and temperature, the movements to absorb and the quantity. CAD replies with a quote within 24 working hours.
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