PEI Tankers
Hydrazine family fuels and Nitrogen Tetroxide are shipped in bulk quantities in Process Engineering Inc. tankers. The tankers are constructed of 304L SS and loaded and offloaded by pressurant gas via valves located on the top-aft-end of the tanker. Each tanker is actually a tank-in-a-tank which provides insulation for the contents. It also has other special crash protection features to prevent the lading vessel from failing in the event of a crash. The N2O4 and fuel versions are virtually identical with the exception of a remote valve closure device on the fuel tanker. NASA designed and built the prototype PEI tankers. DESC contract-carrier tankers deliver MMH and N2O4 to Controlled Storage points. VAFB also has several PEI tankers for their on-base support.
| Equipment | Process Engineering Inc. Tanker |
| Dimensions | 43′ long X 8′ wide X 11’3 ” Tall |
| Weight | 32,520 lb tare |
| Capacity | 2500 gallons |
| Quantity | 4 fuel and 4 N2O4 at KSC/CCAFS |
| Connections | (with adapter flanges installed) Fill/Drain 1.5″ KC male, Pressure/Vent 0.75″ KC male |
| DOT Code | MC-338 w/DOT-SP-3121 for N2O4 MC-338 w/DOT-SP-10631 for fuels |
| MAWP | 300 psig |
| Operating Pressure | 0-500 psig |
| PRV Setting | 286 psig |
| Approved Fluids | Hydrazine family fuels and N2O4 |
| Other Features | Weigh tanker on trick scale to determine content. Fold-down work platforms for easy access to valve area. |