EJK Solenoid Valve
Flight-proven single-stage normally-closed solenoid valve (1.6 mm, 2.45 MPa, 505,000 cycles) for liquid/gaseous propellant flow control.
Technical specifications
- Purpose
- Remote flow control of liquid and gaseous working media (NTO, UDMH, water, alcohol, freon, air, nitrogen, helium, argon)
- Flight qualification
- Letter O1 — flight use
- Customization
- Can be adapted to customer requirements
- Type
- Single-stage, multi-starting, normally closed, single-seat, Teflon seal
- Internal diameter
- 1.6 mm
- Water flow rate / hydraulic resistance
- 22.5 g/s at not over 0.2 MPa
- Inlet pressure
- Not over 2.45 MPa
- Supply voltage
- 21–34 VDC
- Drain current at 34 V / 20°C
- Not over 0.36 A
- Opening time
- Not over 0.035 s
- Closing time
- Not over 0.025 s
- Guaranteed cycle capability
- 505,000 starts
- Mass
- Not over 0.200 kg
- TRL
- 9 (flight-proven)
About
The EJK Solenoid Valve is a single-stage, multi-starting, normally-closed, single-seat solenoid valve with a Teflon seal, designed for remote flow control of liquid and gaseous working media including NTO, UDMH, water, alcohol, freon, air, nitrogen, helium, and argon in spacecraft propulsion systems. It features a 1.6 mm internal diameter, 0.035 s opening time, and 0.025 s closing time. It is rated for 505,000 starting cycles and holds flight qualification status (Letter ‘O1’, flight use). Customizable to customer requirements.
Documentation
No public datasheet yet — request the datasheet / ICD from the supplier.
