EXPANSION VALVE (P/N 34-305) - As Removed

The 34-305 is a thermostatic expansion valve for aircraft vapor-cycle air conditioning systems. This valve meters refrigerant flow into the evaporator while regulating superheat to protect the compressor from liquid return. A sensing bulb monitors evaporator outlet temperature and automatically adjusts valve opening to maintain optimal cooling performance.

Installed at the evaporator inlet, the 34-305 controls refrigerant distribution across varying flight conditions and cabin loads. Replacement requires system evacuation and recharging per aircraft maintenance manual procedures. Verify compatibility with your aircraft's Illustrated Parts Catalog before installation.

What is the EXPANSION VALVE (P/N 34-305)?

The 34-305 is a thermostatic expansion valve for aircraft vapor-cycle air conditioning systems. This valve meters refrigerant flow into the evaporator while regulating superheat to protect the compressor from liquid return.

Is the 34-305 a PMA or OEM part?

The EXPANSION VALVE may be available as an OEM (Original Equipment Manufacturer) or PMA (Parts Manufacturer Approval) part depending on condition and source. Both carry FAA certification for airworthiness. Currently available in: As Removed. Contact us for sourcing details.

Does the 34-305 include installation hardware?

Installation hardware requirements vary by application. Check your aircraft's Structural Repair Manual (SRM) or Illustrated Parts Catalog (IPC) for the complete installation kit requirements for the EXPANSION VALVE. We stock related hardware and can help identify companion parts.

Can the 34-305 be shipped internationally?

Yes, we ship airframe components worldwide. International orders typically arrive within 3-14 business days depending on destination. Export documentation and customs forms are included. Contact us for international shipping quotes on the 34-305.