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Series 664, DN16 Pressure Eliminator
- Flat-Face design
- Connection under pressure
- One-hand operated
CEJN Series 664 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 664 connects with couplings in Series 665.
The pressure eliminator nipples are also available in four other sizes; DN 6.3 (Series 264), DN 10 (Series 364), DN 12.5 (Series 564), DN 19 (Series 764). For steel couplings in accordance with ISO 16028 see Series 665.
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: 400 bar (5801 PSI)
Max. working pressure disconnected: 400 bar (5801 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 from Series 665
Interchangeable with: All brands dimensionally interchanging with ISO16028
Rated flow is measured at 0.1 MPa pressure drop.
Approved to max working pressure Max working pressure 25 MPa according to ISO 16028
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Technical data:
| Nipples with pressure eliminator | Part No. | Connection | Length | Diameter | Hexagon | Seal |
| Female thread | 10 664 6201 | G 3/4″ (BSP) | 99.5 | 40 | 36 | NBR |
| 10 664 6401 | 3/4″ NPT | 99.5 | 40 | 36 | NBR | |
| 10 664 6101 | Rc 3/4″ (BSPT) | 99.5 | 40 | 36 | NBR | |
| 10 664 6600 | 7/8″-14 UNF (5/8″ SAE) | 99.5 | 40 | 36 | NBR | |
| 10 664 6601 | 1 1/16″-12 UN (3/4″ SAE) | 99.5 | 41 | 36 | NBR | |
| Male thread | 10 664 6752 | 1″-14 ORFS bulkhead | 129.5 | 40.5 | 36 | NBR |
| 10 664 6551 | M26x1.5 18L | 100.5 | 40 | 36 | NBR |