Cejn
Cejn - Quick couplings for compressed air, hydraulics and fluids
Cejn is a Swedish manufacturer of quick couplings and connection technology for compressed air, hydraulics and fluids. The programme ranges from safety couplings and coupling sockets through flat face couplings to ISO 16028 and on to Multilink manifolds and Streamline systems.
The focus is on high flow with low pressure drop, safe disconnection under residual pressure and long-lasting seals. For workshop, assembly and industrial plant Cejn offers coordinated components that can be combined into complete connection solutions.
Cejn best sellers
Cejn FFM 34/3 ES-C. ES Flat Face Coupling ISO 16028, coupler size 3, G 3/4"
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Cejn FFM 12 ES-C. ES Flat Face Coupling ISO 16028, coupler size 3, G 1/2"
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Cejn FFS 12 ES-C. ES Flat Face Coupling ISO 16028, nipple size 3, G 1/2"
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Cejn FFS 34/3 ES-C. ES Flat Face Coupling ISO 16028, nipple size 3, G 3/4"
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Cejn MLKDGSI 512. CEJN Multilink 5-Way Manifold, with eSafe safety coupling as outlet
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Cejn MLIG 512. CEJN Multilink 5-Way Manifold, with G 1/2" female thread as outlet
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Cejn MLKDGSI 412. CEJN Multilink 4-Way Manifold, with eSafe safety coupling as outlet
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Cejn MLIG 412. CEJN Multilink 4-Way Manifold, with G 1/2" female thread as outlet
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Cejn product lines
Flat face couplings ISO 16028
Cejn FFM 12/2 ES-C. ES Flat Face Coupling ISO 16028, coupler size 2, G 1/2"
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Cejn FFM 38 ES-C. ES Flat Face Coupling ISO 16028, coupler size 2, G 3/8"
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Cejn FFM 14 ES-C. ES Flat Face Coupling ISO 16028, coupler size 1, G 1/4"
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Cejn FFS 12/2 ES-C. ES Flat Face Coupling ISO 16028, nipple size 2, G 1/2"
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Cejn FFS 38 ES-C. ES Flat Face Coupling ISO 16028, nipple size 2, G 3/8"
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Cejn FFS 14 ES-C. ES Flat Face Coupling ISO 16028, nipple size 1, G 1/4"
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Cejn FFM 10/4-C. CEJN Flat Face Coupling ISO 16028, coupler size 4, G 1"
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Cejn FFM 34-C. CEJN Flat Face Coupling ISO 16028, coupler size 4, G 3/4"
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Choosing the right Cejn coupling
Define the application
The medium comes first: compressed air, hydraulic oil or another fluid. Safety couplings and coupling sockets suit compressed air, while flat face couplings to ISO 16028 suit hydraulic lines.
Nominal size and thread
The nominal size (e.g. NW7.2 or NW10) determines the possible flow rate. Make sure the connection matches:
- Female thread (IG) for fixed piping
- Male thread (AG) for adapters and fittings
- Hose connection for flexible lines
Safety and convenience
Safety couplings such as eSafe vent the line before it is disconnected and prevent the hose from snapping back uncontrolled. Multilink manifolds supply several outlets from one source and can be extended when needed.
Which Cejn line fits?
| Criterion | Flat face ISO 16028 | Safety coupling | Multilink manifold |
|---|---|---|---|
| Medium | Hydraulics, fluids | Compressed air | Compressed air |
| Focus | Low leakage, flat sealing face | Safe disconnection | Multiple distribution |
| Version | Coupler and nipple | Socket with female, male thread or hose | 4-way or 5-way, expandable |
| Connection | G thread | G/R thread, hose | eSafe or female thread |
| Standard | ISO 16028 | - | - |
| Typical application | Hydraulic lines, tools | Workshop, assembly | Workstation with several outlets |
Cejn at a glance
Frequently asked questions about Cejn
What does Cejn manufacture?
Cejn is a Swedish manufacturer of quick couplings and connection technology for compressed air, hydraulics and fluids. The range includes safety couplings, coupling sockets, flat face couplings to ISO 16028, Multilink manifolds and Streamline systems.
What are flat face couplings to ISO 16028?
Flat face couplings have a flat sealing face that allows hardly any leakage or air inclusion when connecting and disconnecting. They are standardised to ISO 16028 and are offered in coupler and nipple versions, so that components from different manufacturers built to this standard fit together.
What is an eSafe safety coupling?
An eSafe safety coupling vents the compressed air line in a controlled step before it is fully disconnected. This avoids a sudden pressure surge and stops the hose from snapping back uncontrolled, which improves working safety.
What is the Multilink system?
Multilink is a modular multi-outlet manifold from Cejn. It provides several outlets from one connection, either as a safety coupling or with a female thread, and can be adapted to the needs of the workstation with extension segments.
What should I look out for with nominal size and thread?
The nominal size (for example NW7.2 or NW10) determines the possible flow rate. For the connection a distinction is made between female thread (IG) for fixed piping, male thread (AG) for adapters and hose connections for flexible lines. Nominal size and connection type should match the existing installation.
Need advice or a quotation at trade terms?
Our team helps you select the right Cejn coupling, coupling socket or manifold system for your application. Contact us for advice or a quotation at trade terms.
