Ultra High-Pressure Hydraulic Products, Couplings & Nipples

Series 135, 300 MPa

Series 135 is a CEJN original for extremely high working pressure, 300 MPa. The series also withstands pressure up to 300 MPa while disconnected (applies to the coupling and nipple). Non-Drip connection and disconnection are standard on the CEJN High-Pressure range. The coupling also has a safety ring for the locking sleeve to prevent accidental disconnection. Plastic dust caps are standard on both coupling and nipple. Swiveling can cause wear damage over time why the nipple is available in both swivel and non-swivel designs. Each coupling and nipple are pressure tested up to full working pressure before delivery. The series makes it possible to connect pumps and accessories faster, safer and more conveniently, even at extreme pressure. The Series 135 is in the first place recommended for bearing pullers, splitters and hydraulic test installations.

Series 135, 300 MPa
Technical data
Nominal flow diameter: 2.5 mm (3/32")
Flow capacity: 4.6 l/min (1.0 GPM UK)
Max. working pressure: 300.0 MPa
Min. burst pressure: 600.0 MPa
Temperature range: -20°C — +80°C (-4°F — +176°F)
Material coupling: Hardened black finish steel
Material nipple: Hardened black finish steel
Material seal: Nitrile (NBR) other sealing materials on request

Flow capacity is measured at 0.4 MPa pressure drop.

Oil Flow
Pressure drop, MPa
Series 135, 300 MPa
Flow l/min. (GPM UK)
Couplings Part No. Remark Connection Length Diameter Hexagon Max rec. press. cycles Rec. torque (Nm) Rec. seal. method
Female thread with 60° sealing cone 10 135 1505101351505-M16x1.56430221000/500040-5060° cone


Nipples Part No. Remark Connection Length Diameter Hexagon Max rec. press. cycles Rec. torque (Nm) Rec. seal. method
Female thread with 60° sealing cone 10 135 6505101356505Standard design.M16x1.555.32522100040-5060° cone
 10 135 6506101356506Non-swivel design.M16x1.555.32522500040-5060° cone


Check with an authorized CEJN distributor for availability and prices. Other connections and sealing material on request. Some part numbers may be subject to minimum order quantities. CEJN reserves the right to make changes without further notification. Thread connections are listed according to ISO Standards. All measurements are in mm.

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Available files for download