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High-Pressure connections

High-Pressure connections
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High-Pressure connections

Product catalog summary
Market Leadership and Mindset
CEJN is a leader in high-pressure hydraulics, known for pioneering quick connect hydraulic couplings since 1967. The company's success is due to its proactive market approach, continuous innovation, and collaboration to meet market needs.
CEJN High-Pressure Centers
Located in Sweden, these centers are vital for R&D and production, ensuring global customer support, fast responses, and timely deliveries. They are equipped with facilities for hose crimping and testing to ensure product safety and performance.
Safety Measures
CEJN prioritizes safety in high-pressure applications with innovative safety technologies and rigorous testing. The CEJN Metal Seal is a reliable method for extreme pressures, ensuring safe assembly with original components.
Customer Solutions and Product Development
CEJN collaborates with customers to develop advanced solutions through a process involving design drafts, prototypes, simulations, lab tests, and field testing to meet high standards and specifications.
Application Environments
CEJN provides solutions for challenging environments such as nuclear, subsea, wind power, oil, gas, and turbine applications, with products like high-pressure couplings and hoses for various tools.
Series Specifications
  • Series 218 (100 MPa): High flow, small dimensions, non-drip connections.
  • Series 230 (70 MPa): Screw-to-connect, interchangeable with competitive couplings.
  • Series 125 (250 MPa): Quick, secure connections with high-pressure seal design.
  • Swivel Connections (150 MPa): 360° movement to prevent hose twisting.
  • Series 135 (300 MPa): High pressures, safety locking ring to prevent disconnection.
  • Hose (70 to 300 MPa): Spiral-reinforced polymer hose, pressure tested.
  • Series 116 t-Connection (150 MPa): Lightweight, minimizes leakage.
  • Series 116 Flat-Face (150 MPa): Automatic locking, easy cleaning.
Problem-Solving Solutions
  • T-Connector: Reduces leak points.
  • Twin Flat-Face High-Flow: Quick connections for pressure and return lines.
  • Diesel Adapter Nipple: Eliminates injection nipples in diesel testing.
  • Nuclear Nipple: Heat-resistant for nuclear industry.
  • Swivel Coupling Adapter: Swivels under pressure, saves space.
  • Short Profile Nipple: Reduces leak points, attaches directly to tools.
  • Elbow Connection: Saves space, enhances safety.
  • High-Flow: Suitable for hydraulic tools.
  • Stainless Steel Version: Corrosion-resistant for offshore applications.
Technical Data
Includes specifications for each series, such as part numbers, connection types, dimensions, recommended torque, sealing methods, flow capacity, working and burst pressures, temperature ranges, and materials used.
Additional Features
CEJN couplings and nipples feature non-drip interfaces, dust caps, and are designed to minimize fluid spillage and air inclusion, emphasizing quality and innovation.
Specifications
1. Flow Capacity: Ranges from 4.6 l/min to 21.2 l/min.
2. Pressure Ratings: Working pressures from 70.0 MPa to 300.0 MPa.
3. Temperature Range: -40°C to +100°C.
4. Materials: Hardened steel with various finishes, Nitrile (NBR) seals.
Procedures and Features
1. Couplings & Nipples: High working pressures, non-drip connections, safety devices.
2. Screw-to-Connect: Compatible with most couplings.
3. Hoses: Reinforced with steel wire, flexible, kink-resistant.
Recommendations and Best Practices
1. Maintenance: Regular checks with authorized distributors.
2. Accessories: Dust caps, kink-protection springs, hose bend protectors.
High-Pressure Hoses
Three types with pressures of 180 MPa, 250 MPa, and 300 MPa, featuring polyoxymethylene inner tubes, steel wire layers, and polymide sheaths.
Adapters and Connections
Adapters with pressures up to 300 MPa, made of black zinc-plated steel, compatible with most couplings and hoses.
Seals
Rubber metal seals for high-pressure applications, ensuring leak-free connections.
Porting Blocks
Allow multiple hydraulic lines from a single pump, handling pressures up to 300 MPa.
Pressure Gauges
Available in three sizes, measuring up to 200 MPa, glycerine-filled for durability.
Maintenance Tips
Check with authorized distributors for product availability and prices, visit CEJN website for maintenance tips.
Safety and Maintenance Guidelines
Shut down machinery if leakage occurs, ensure no line pressure when disconnecting, regular maintenance is crucial.
Additional Resources
Links to CEJN product pages for further information on high-pressure hydraulics.
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Catalog excerpts

High-Pressure connections-1

high-pressure Hydraulics High-Pressure Hydraulics Combining top class technology, safety focus and responsiveness to stay one step ahead

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CEJN launches Series 115, the first coupling for pressures up to 100 MPa 1978 CEJN launches Series 116, the first coupling for pressures up to 150 MPa CEJN launches Series 125, the first coupling for pressures up to 200 MPa CEJN launches Series 135, the first coupling for pressures up to 300 MPa CEJN launches Flat-Face couplings for High-Pressure connectors

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High-Pressure connections-5

The Key to Leadership Is Our Mindset Our work with High-Pressure hydraulics is a testament to our skill, dedication and quick connect knowledge. We patented the world’s first quick connect hydraulic coupling for 100 MPa (1000 bar) pressure in 1967. It marked a leap of faith at a time when the hydraulic market considered screw-to-connect couplings to be the only option for connecting High-Pressure hydraulic lines. ONE STEP AHEAD, FOR MORE THAN 40 YEARS Since CEJN patented the first quick connect coupling for High-Pressure hydraulics, demand has increased tremendously. What our founder Carl Erik...

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CEJN High-Pressure Centers CEJN High-Pressure Centers The hub of our High-Pressure business is based in the heart of Sweden at CEJN’s headquarters. This is where our R&D department and main production operations are located. Being one step ahead demands being one step closer to the market - a key reason why CEJN has a local presence across the globe. Our High-Pressure Centers extend the technical know-how of our hub, offer on-location product support, and on-time deliveries to our customers in all major industrial markets. Close cooperation between the R&D department and our High-Pressure Centers...

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CEJN High-Pressure Centers HOSE CRIMPING HOSE TESTING DELIVERIES Each High-Pressure Center features a Before delivery, each hose kit is pressure Since CEJN High-Pressure Centers are located hose crimping facility that assembles hose tested to ensure safe operation and near major markets, fast and timely delivery is kits to customer orders. maximum performance. a major customer advantage. United Kingdom South Korea APPLICATION KNOW-HOW CEJN High-Pressure Centers are application experts. They work with customers on a daily basis to create just the right solution for each application.

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CEJN High-Pressure Safeguards Extreme Pressures Require Extreme Safety Extreme High-Pressure hydraulics creates extreme forces that have the potential to cause serious personal injuries or even fatalities. Although incidences are uncommon, an improperly locked coupling set could blow off and hit someone, or a hose failure could generate a hydraulic oil beam powerful enough to puncture a human body. When extreme pressures are combined with extreme applications, such as when a hydraulic jack is used to lift a building, safety must be the utmost concern. By never settling for average safety compliance...

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CEJN High-Pressure Safeguards High-Pressure Safeguards Always make sure that Products you choose correspond with the required pressure rating. Check part number and rated pressure. Ensuring Proper Connection Risk: When working in poor conditions or poorly lit areas, there is a risk that couplings may not be completely connected. CEJN’s Role: CEJN alert rings are visual safeguards for ensuring proper connection. If the red ring is visible, the coupling isn’t connected. To be introduced in 2013! All components are CEJN originals. Don’t mix brands! All hose assemblies are pressure tested CEJN safety...

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CEJN High-Pressure Benefitting from Each Other The process from idea to finished product Design Draft CEJN engineers and product managers work closely with customers to incorporate all demands into product designs. Customer Request Product features, application environment, and other important variables are specified. Prototype A prototype is made for customer review and ongoing development. Benefitting from Each Other With more than four decades of High-Pressure experience, we know that the more advanced our technological solutions, the more user-friendly they need to be. This is just one of...

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CEJN High-Pressure Benefitting from Each Other Testing CEJN test laboratories: work around the clock to verify that CEJN products meet all fit and functionality requirements and will perform on the job. Field testing: CEJN’s field testing is made in tough environments in close cooperation with customers. The test results are then compared to CEJN’s laboratory tests before being approved for production. Production Products are tested throughout CEJN’s ISO-certified production processes. CEJN inventoried products undergo routine audits to ensure high quality and high performance. Product Testing...

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CEJN High-Pressure Application Environments Solutions for a Wide Range of Application Environments Whether the application is nuclear, subsea, windpower, oil, gas, or turbine, at CEJN we’re committed to meeting the ever-changing requirements of tough environments. Our wide range of High-Pressure couplings and hoses includes just what you need for jacks, cable cutters, pipe bending and bolt tensioning tools, torque wrenches, rescue equipment, hydrostatic testing equipment, and more. Subsea, Gas and Turbine, Shipbuilding Series 116, 150 MPa • Couplings with integrated swivel are available, in addition...

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CEJN High-Pressure Application Environments Series 135, 300 MPa • Withstands extremely high working pressures when connected and disconnected (applies to coupling and nipple) • Safety style with locking ring on the coupling prevents accidental disconnection • Connecting pumps and accessories is quick and safe, even at extreme pressures Series 125, 250 MPa • Ensure quick, secure connections • Extremely small outside dimensions • Standard High-Pressure seal design ensures non-drip connection and disconnection Bolt Tightening Swivel Connections, 150 MPa • Ideal for hard-to-reach areas • Allow 360°...

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.