Spacecraft Components

Typical Performance Specifications

• Media

  Gaseous Xenon, Helium, Argon or Nitrogen

• Weight

  < 0.3 lb (136 grams) with leads

• Operating Voltage Range

  20 to 42 vdc

• Operating Pressures

  0 to 2700 psig (0 to 186 bar)

• Proof Pressures

  4050 psig (279 bar)

• Burst Pressures

  8100 psig (558 bar)

• Internal Leakage

  < 1x10^-4 scc/sec GHe

• External Leakage

  < 1x10^-6 scc/sec GHe all welded design

• Coil Resistance

  58 ±1 Ohm at 70°F (21°C)

• Open Response Time

  < 50 ms

• Closed Response Time

  < 50 ms

• Power Consumption

  Approx. 4 watts/coil

• Operating Thermal Capability

  62°F to 140°F (17°C to 60°C)

• Non-operating Thermal Capability

  -29°F to 160°F (-34°C to 71°C)

• Filtration

  5 microns absolute

• Cycle Life

  > 12,000 cycles

• Wetted Materials

  Teflan®, Vespel®, Stainless Steel

Most of the listed performance parameters reflect the program requirements and not the design limitations of the valve. In general most valves will perform better than listed in the following areas: system pressure, flow rate, pressure drop, internal leakage and response time.