 Product
Overview:
A flow control valve designed for the control of propellant
in storable, liquid propulsion systems.
The design comprises of two essentially identical, solenoid
operated, normally closed, poppet type valves mounted coaxially
in series. Each of these solenoid valves comprises a coil,
fixed pole and a suspended moving/armature, to which is attached
a sealing pin, the valve seat is located in the valve outlet.
The poppet/seat interface has been designed to
minimise flow discontinuities and therefore reduce susceptibility
to contamination induced failures.
This valve is an adaptation of the successful SV06/SV14 series
of valves modified for use with hydrazine in monopropellant
propulsion systems by the introduction of a PTFE seal in a
vacuum brazed and EB welded body.
Performance Characteristics:
| Operating Media |
N2H4, IPA, H2O, GN2 |
| Operational Temperature |
0°C to 120°C |
| Operating Pressure |
30 bar |
| External Leakage |
< 1 x 10-6 scc/s
GHe |
| Internal Leakage |
< 1 x 10-4 scc/s
GHe |
| Cycle Life |
1,000,000 |
| Open/Close Response |
< 5 ms |
| Coil Resistance |
105 - 115 Ω |
| Coil Response |
< 5 ms |
| Mass |
< 200 g |
| Materials |
Radiometal, Stainless Steel, PTFE |
| Electrical Interface |
Flying leads |
| Fluid Interface |
Defined flange and 1/8 x 37° Coupling* |
*Other options are available
Product History:
This product is in development.
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