Grundfos 00335021 Flange Set 326058-757 When performing a Robertshaw 780-502

When performing a Robertshaw 780-502 installation

Suitable for both natural gas and propane (LP) applications

Can this switch be used for liquid media

shows signs of mineral buildup (scaling) at the discharge port

Using it with natural gas would require an orifice change to maintain the correct BTU input and flame pattern

Grundfos 00335021 Flange Set 326058-757 When performing a Robertshaw 780-502The Grundfos 00335021 is a heavy duty 2 inch NPT flange set designed for seamless integration with high head centrifugal pumps and circulators. Engineered to satisfy ANSI 250# flange pressure ratings, these cast iron components provide the structural integrity required for high pressure commercial hydronic systems. The kit facilitates a secure, leak proof transition between NPT threaded piping and flanged pump housings, ensuring optimal flow dynamics