Chicago (Claw) Compressor Coupling
A symmetric quick-connect coupling for compressed-air, water and light bulk lines, joined without a shared thread between the two halves.
Product Overview
The Chicago coupling — also known as a claw coupling or universal coupling — is a mechanical quick-connect fitting made of two fully identical, symmetric halves that lock together with a 90° twist of two claws, without any shared thread between the two sides. This symmetry is the coupling's key advantage over male/female fittings: since both halves are identical, there is effectively no way to connect it the wrong way round. It is primarily designed for compressed-air and water lines. Tose'e Tejarat Sayyalat supplies this product alongside its hydraulic and industrial couplings.
Applications
- Compressed-air lines on job sites and in industrial workshops
- Connecting air hoses to mobile pneumatic tools (impact wrenches, sandblasting)
- Temporary water lines on construction, mining and industrial projects
- Rapid connection of air and water hoses on drilling and petrochemical sites
End-User Industries
General specification
| Operating type | Rapid connection and disconnection via two symmetric locking claws, turned 90°, no shared thread required |
|---|---|
| Working pressure | PN 10 bar |
| Dimensional standard | DIN 3482 (male thread) / DIN 3483 (female thread & hose shank) / DIN 3489 (three-way) |
| Size range | 1/4 inch to 1.1/4 inch |
| Seal | Black rubber seal specific to claw couplings (seal for air) |
Chicago coupling model guide
| Product group | Connection type | Size range | Standard |
|---|---|---|---|
| 5001-01 | Claw coupling, hose shank | 3/8″ to 1″ | — |
| 5001-11 | Claw coupling, hose shank | 1/4″ to 1.1/4″ | PN 10bar, DIN 3483 |
| 5001-02 | Claw coupling, male thread | 3/8″M to 1″M | — |
| 5001-12 | Claw coupling, male thread | 1/4″M to 1.1/4″M | PN 10bar, DIN 3482 |
| 5001-03 | Claw coupling, female thread | 3/8″F to 1″F | — |
| 5001-13 | Claw coupling, female thread | 1/4″F to 1.1/4″F | PN 10bar, DIN 3483 |
| 5001-04 | Black rubber seal (seal for air) | To match coupling size | — |
| 5001-17 | Three-way claw coupling | 3/4″ and 1″ | PN 10bar, DIN 3489 |
In plain terms: This coupling is known in the Iranian market as a "compressor coupling," "Chicago coupling" or "claw coupling," and is dimensionally and functionally equivalent to the Claw Coupling family in international catalogues; simply state the connection side (hose shank / male thread / female thread / three-way) and the size you need in your enquiry.
Technical drawing of connection types
The three common connection sides of the claw coupling half, matching the product groups in the table above:
Female Thread — groups 5001-03 / 5001-13
Male Thread — groups 5001-02 / 5001-12
Hose Shank — groups 5001-01 / 5001-11
Technical Catalogue
The technical catalogue for the Chicago compressor coupling is available on request from our sales department.
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