Hydraulic quick-release coupling
Rapid connection and disconnection of fluid lines without tools.
Product Overview
A hydraulic quick-release coupling allows two fluid lines to be connected and separated rapidly, without tools and without fluid loss. It is typically used on equipment where the hydraulic connection has to be changed or broken frequently, such as portable machinery and attachments. Tose'e Tejarat Sayyalat supplies stainless steel couplings for this duty.
Applications
- Rapid connection and disconnection of portable hydraulic lines
- Quick changeover of tools and attachments on machinery
- Hydraulic circuits requiring frequent service and disconnection
End-User Industries
Stainless steel coupling
Resistant to corrosion in industrial environments.
Male and female set
One-way connection with no fluid loss.
Technical Specification
| Material | Stainless steel |
|---|---|
| Operating type | Rapid connection and disconnection without tools |
| Common reference standard | ISO 7241 Series A and B (the common hydraulic coupling profiles) |
| Common size range | From 1/4 inch to 2 inch |
| Typical working pressure range | Depending on size and series, up to around 400–450 bar |
| Compatibility | Matched to the size and thread standard of the project's hydraulic line |
The difference between Series A and Series B (ISO 7241-1)
| Feature | Series A (ISO 7241-1 A) | Series B (ISO 7241-1 B) |
|---|---|---|
| Valve type | Ball valve | Ball or poppet valve |
| Locking type | Push-on | Push-on or threaded lock |
| Sealing | O-ring | O-ring or metal-to-metal |
| Pressure application | Low to medium pressure | Medium to high pressure |
| Typical application | Agricultural and forestry machinery, mainly in Europe | Chemical industry and heavy machinery, mainly in North America |
In plain terms: This coupling is designed for the rapid connection and disconnection of hydraulic lines — changing an attachment on an excavator or loader, for example — without loss of oil, using an internal check valve that closes as soon as the halves separate. Before ordering, confirm the exact series (ISO 7241-A or B) and the gender (male/female) at each end of the line.
Technical Catalogue
The technical catalogue for quick-release couplings is available on request from our sales department.
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