M- Model;
P- Pneumatic;
E- Electric, 12 volt;
EE- Economical Electric, 12 volt;
H- Heavy, i.e. heavy wall for a 5000# rating;
HL- High Line, used above the 350psi decompression threshold;
RP- Reduced Port;
FP- Full Port;
SS- Stainless Steel;
C- Carbon Alloy;
P1- Pneumatic control of 1 valve;
P2- Pneumatic control of 2 valves;
R1- Relay for control of 1 electric valve;
R2- Relays for control of 2 electric valves;
PM- Power Module for Plunger Lift control of ABV;
CM- Control Module for ABV;
ABV- Actuated Ball Valve, 12 volt;
MPT- Methanol Pump Thermostat;
2, 9, 18- Soapstick Capacity;
RTU- Remote Terminal Unit;
EFM- Electronic Flow Meter;
SCADA- Supervisory Control and Data Acquisition;