Spacecraft Propulsion Components
Isolation Latch and Solenoid Valves
Isolation Valves, Monopropellant, Single Seat, Latching Solenoid and Normally Closed Solenoid
These valve designs have been used in various space propulsion and operational systems in support of planetary and GEO satellite applications
Torque Motor Latch Valve
This TRL 9 high pressure latch valve is a single line, bi-stable, titanium torque motor valve, featuring integral microswitch position indication, inlet filter, and back EMF suppression diodes.
Single Line Isolation Latch Valves
These valves can be used for controlling propellants and pressurization gasses. The latch valves are bi-stable, and will stay in the last (open/closed) commanded position.
Dual Line Isolation Latch Valves
This valve design utilizes a single torque motor and command signal to control two separate, hermetically sealed pressurant or propellent lines.
Thruster Valves
Bipropellant Torque Motor Thruster Valves
Moog Torque Motor thruster valves have been in production for almost four decades. T/M thruster valves were originally developed for the original Galileo spacecraft and for Minuteman II and III engines.
Bipropellant Solenoid Thruster Valves
Moog has a family of rolling metal diaphragm (RMD) tanks that are fabricated from commercially available aluminum alloys, providing a low-cost, lightweight, reliable alternative to titanium propellant tanks.
Monopropellant Solenoid Thruster Valves
Chemical Thruster Valves Bipropellant, Torque Motor, Single and Redundant Seat
Regulators and Flow Control Valves
Electric Propulsion Proportional Flow Control Valve (PFCV)
The 51E339 Proportional Flow Control Valve (PFCV) is an all welded, normallyclosed, solenloid-type valve that can provide outlet flow control or pressure regulation in proportion to the input current, within its operating range.
Helium Regulator Pneumatic Pressure Regulator
Moog model 50-1425 pressure regulator is a series-redundant unit designed to provide stable tank pressure for propellant in a spacecraft propulsion system.
Mechanical Regulators
The PMA and XIPS regulators were developed based on experience from the Pluto Fast Fly-By Mission and ROSAT programs.
Service Valves
Fill and Drain Service Valves
These mechanically operated valves are opened/ closed by rotating an actuation nut. The ground connection is a standard AN-style fitting that can be attached prior to operating the valve.
Fluid Transfer Couplings
Fluid Transfer Coupling (FTC)
The Moog Fluid Transfer Coupling (FTC) Is a stainless steel, two piece design using passive and active halves to secure fluid connection and sealing. Connection of the two halves will open the flow path after the sealing engagement is established.
Rolling Metal Diaphragm Tanks
Rolling Metal Diaphragm Tanks
Moog – ISP’s rolling diaphragm tanks are fabricated from commercially available aluminum alloys providing a low-cost short leadtime alternative to titanium propellant tanks. The tanks are easily sized to meet customer specifications and are individually designed to meet pressure, temperature, and flow requirements.
