Hydraulic Products, X64 Range - ISO 16028 Flat-Face Pressure Eliminator Nipples

Series 064 DN25 Pressure Eliminator

  • Flat-Face design
  • Connection under pressure
  • One-hand operated


CEJN Series 064 is a Flat-Face quick-connect nipple with a built-in pressure eliminator. The nipple is according to and exceeds the demands in the ISO 16028 Standard for low- and medium-pressure hydraulic applications. The Flat-Face design minimizes spillage during connection and disconnection. The pressure eliminator allows for connection with residual/trapped pressure on the nipple side. The nipple Series 064 connects with couplings in Series 065.


The pressure eliminator nipples are also available in five smaller sizes; DN 6.3 (Series 264), DN 10 (Series 364), DN 12.5 (Series 564), DN 16 (Series 664) and DN19 (764).

Series 064 DN25 Pressure Eliminator
Nipples with pressure eliminator Part No. Connection Length Diameter Hexagon Seal
Female thread 10 064 6203 100646203G 1" (BSP)1385546NBR
 10 064 6204 100646204G 1 1/4" (BSP)1426055NBR
 10 064 6603 1006466031 5/16"-12 UN (1" SAE)146.45046NBR
 10 064 6104 100646104Rc 1 1/4" (BSPT)142.36055NBR
 10 064 6280 100646280G 1" JIS ORB1375546NBR
 10 064 6281 100646281G 1 1/4" JIS ORB1426055NBR
 10 064 6403 1006464031" NPT1385546NBR
 10 064 6404 1006464041 1/4" NPT137.86055NBR


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.
Technical data
Temperature range: -30°C — +100°C (-22°F — +212°F)
Material nipple: Hardened steel (zinc passivation)
Material seal: Nitrile (NBR/PUR)
Connectability: With static pressure up to 400 bar on the nipple side
Max. working pressure connected: 350 bar (5076 PSI)
Max. working pressure disconnected: 350 bar (5076 PSI)
Min. burst pressure connected: 1200 bar (17404 PSI)
Min. burst pressure disconnected: 1200 bar (17404 PSI)
Disconnection under pressure: Not allowed
Comment: Connects with couplings in CEJN 065 series and other brands DN25 - 1" couplings within the ISO 16028 standard
Interchangeable with: All brands dimensionally interchanging with ISO16028

Rated flow is measured at 1 bar pressure drop. Flow measured with coupling Series 065.

Pressure drop chart
Series 064 DN25 Pressure Eliminator Flow measured with coupling Series 065

Available files for download

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