Spirax Sarco 1/2" NPT 25 SERIES Main Valve, Cast Iron #3266451IN STOCK: USUALLY SHIPS WITHIN 1 2 DAYS OUT OF STOCK: APPROX 2 3 WEEKS 1 2" NPT 25 Series Main Valve Cast Iron The Spirax Sarco 25 Series Main Valve (main valve only) for regulating pressure and temperature with the use of either a 25P pressure pilot, 25T temperature pilot. or 25PT both pressure and temperature pilots (all pilots sold separately). 1 2" NPT connection and a 250 psi maximum operating pressure. Order pilot separately dependent upon

Model: B3S-125 (125 PSI)

Test and Inspection to API598

Overall Length: 7 3/4 in

Nominal Size: 1/2"

Manual Reset – easily reset the control when the probe is configured as Manual Reset

Part# FGA020FR12C1V1MHBBOS

Used on the following Pumps: Series 100

making it ideal for water systems

whisper quiet wet rotor circulators designed for residential and light commercial hydronic heating systems

Max Temperature Rating: 220 C

Packing type offered is flexible graphite

auto or manual control for steam or hot water boilers