EJK Solenoid Valve
Glavkosmos
The EJK Solenoid Valve is a single-stage, multi-starting, normally closed, single-seat, teflon seal valve designed for remote flow control of liquid and gaseous working media, including propellants, in space applications.
Key figurescomparable across the catalogue
- Mass
- 0.2 kg
- TRL
- 9
Normalised to common units so this product can be compared with others in its category. The supplier's own wording is below.
As published by the supplier
- Purpose
- Flow remote control of liquid and gaseous working media (NTO, UDMH, water, alcohol, freon, air, nitrogen, helium, argon)
- Flight qualification of the product
- Letter "O1", flight use
- Possibility to adapt the product to customer requirements
- Yes
- Internal diameter
- 1.6 mm
- Water flow rate / hydraulic resistance
- 22.5 g/s/not over 0.2 MPa
- Inlet pressure, not over
- 2.45 MPa
- Supply voltage
- 21…34 VDC
- Drain current at u=34vdc, t=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 starting
- Mass, not over
- 0.200 kg
About
The EJK Solenoid Valve is a single-stage, multi-starting, normally closed, single-seat, teflon seal solenoid valve. Its primary purpose is the remote control of flow for various liquid and gaseous working media, including NTO, UDMH, water, alcohol, freon, air, nitrogen, helium, and argon. The product has received ‘Letter “O1″‘ flight qualification, indicating its suitability for flight use. It offers the possibility to be adapted to customer-specific requirements. Key specifications include an internal diameter of 1.6 mm, a water flow rate/hydraulic resistance of 22.5 g/s/not over 0.2 MPa, and an inlet pressure not exceeding 2.45 MPa. It operates with a supply voltage of 21-34 VDC, with a drain current not exceeding 0.36 A at U=34VDC, T=20°C. The valve boasts fast response times, with an opening time not over 0.035 s and a closing time not over 0.025 s. It has a guaranteed cycle capability of 505,000 starting cycles and a mass not exceeding 0.200 kg.
Documentation
No public datasheet yet — request the datasheet / ICD from the supplier.