Precise Flow Control: The equal percentage flow characteristic in the A-port prevents hunting and improves heat exchanger efficiency

Engineered for 200-230V

Key Benefits Precise Pressure Range: Delivers a reliable 15-30" Water Column output for high-pressure requirements

such as the M6410 and M7410 series

low-resistance contact point for field wiring

York S1-129334 Expansion Valve 318820-201 Precise Flow Control: The equalThe York S1 129334 is a professional grade thermostatic expansion valve (TXV) designed for precision refrigerant metering in residential and light commercial evaporator coils. Featuring 5 8" x 7 8" ODF solder connections, this valve ensures a leak free, high integrity joint critical for high pressure systems. As the direct replacement for S1 526 36290 000, it maintains factory spec superheat levels, protecting the compressor from liquid slugging while