Lennox 11X74 Expansion Valve 30067439-890 The Belimo B231 valve is

The Belimo B231 valve is a robust 1 1/4" NPT

Because of the bi-metal connection design

Universal Installation: Flexible mounting allows the motor to be positioned on either the bottom or side of the duct

the MR4DR24-12 DIN rail mount configuration simplifies installation within standard electrical panels

Industrial Power Output: Provides a 50VA rating

Lennox 11X74 Expansion Valve 30067439-890 The Belimo B231 valve isThe Lennox 11X74 Expansion Valve is a critical refrigerant metering device engineered for high performance R410A residential and light commercial systems. As a thermostatic expansion valve (TXV), it provides precise superheat control by modulating flow based on evaporator load. This ensures the Lennox evaporator coil operates at peak efficiency while providing essential compressor protection against liquid floodback. This OEM Lennox part is designed