With a heritage dating back to 1975 and the start of the Viking program, over 150 service valve variants have been produced and flown on various satellites, space probes and classified missions. Many types of service valves are available to meet specific needs.
- Varying material properties allow for different operating conditions (pressure, temperature range, etc.).
- Varying O Rings are used depending upon the propellant.
- Valves can be customized for size, weight and the number of mounting holes needed.