McDonnell Miller (176220) 157S-R Low Water Cut-Off & Pump Controller With Alternate TappingsMcDonnell & Miller model number 157S R is a combination float operated low water cut off and pump controller for steam boilers with an integral water column. The controller has 1 2" NPT tappings for gauge glass and tri cocks. This control features an automatic reset with two 120 volt bi metal snap switches. One switch is single pole, single throw for pump control. The other is single pole, double throw for low water cut off and alarm actuation. Its

superheated steam applications

OUT OF STOCK: TO BE CONFIRMED

Part Number: 0666790

200 WSP @ 406 F

Brand: Spirax Sarco

Bell & Gossett NRF-25 Wet Rotor Circulator Pump

For Use with 25 main valve to make 25T Temperature Regulator

3/4 in FNPT Blow-Off

Temperature Range: 60-120F

Part Number: 103357LF (Replaces 103357)

316SS Shell

Note that changing the actuator can be accomplished without draining the system