Spirax-Sarco 54663 Main Valve 320734-701 Installing an oversized TXV on

Installing an oversized TXV on a smaller tonnage system can lead to "hunting" and unstable suction pressures

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ensuring high electrical efficiency and reduced operating costs

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Standard Connection: 1-1/4 inch NPT threaded connections facilitate easy integration with existing iron pipe schedules

Spirax-Sarco 54663 Main Valve 320734-701 Installing an oversized TXV onThe Spirax Sarco 54663 is a 4 inch ANSI 125 flanged main valve engineered for precision in high capacity steam distribution systems. As a core component of the 25 Series, this pilot operated pressure reducing valve (PRV) utilizes a self actuated design, leveraging downstream pressure feedback via an external sensing line to modulate flow. This cast iron unit is built for heavy duty service, featuring stainless steel internals and a fatigue tested