When using DC voltage

making it an ideal drop-in replacement for legacy Erie zone valve bodies

How do I reverse the rotation on the Nidec 1901

OEM kits ensure material compatibility (such as NBR or Viton) and specific spring tensions that are critical for the valve's pressure rating and response time

While functional in many positions

McDonnell & Miller FS7-4 Switch Els PW 17895 When using DC voltageThe McDonnell & Miller FS7 4 is a heavy duty, industrial liquid flow switch designed for high capacity systems requiring precise monitoring of start stop operations. Engineered with a 1 1 4" NPT connection and a SPDT snap switch, this unit serves as a critical safety interlock for large boilers, chillers, and process cooling applications. It features a maximum operating pressure of 300 PSI and can handle liquid temperatures up to 300F (149C). The Part