Rotex / 51440 / 51440A Series

5/2 Inline Single-solenoid Poppet Valve

A 5/2 internal-pilot inline poppet family with spring return, broad port and orifice options, and configurable solenoid-coil assemblies.

Official catalogue range

Confirm function and mounting first

  • 5/2 internal pilot operated
  • Spring return single-solenoid design
  • 1/4" to 2" threaded connections
  • 6-50 mm orifice options

Selection guidance

Then confirm materials and solenoid options

  • 51440 / 51440A family references
  • 1-8 W catalogue power options
  • Aluminium, brass or stainless-steel body options
  • Confirm voltage, enclosure and approval from the exact code

Official catalogue reference

Product codes and selection range

The references below come from Rotex's official product catalogue and the linked official product sheets. They locate product codes, functions and selection ranges; they are not a complete order-code list. Confirm material, seals, voltage, power, enclosure protection and approvals against the exact datasheet and the manufacturer's confirmation.

Official catalogue modelsFunction / applicationSize / pressureMaterial / sealSolenoid / approvalDocuments / inquiry
51440 / 51440A / P5003 / P5011 / I5005Official catalogue reference5/2 internal pilot operated; inline poppet; spring return1/4-2 NPT; 6-50 mm orifice; 2-8 barAluminium / brass / SS316; seal by code1-8 W options; enclosure and approval by codeDatasheet ↗