Hydronic Hardware & Parts

For residential, commercial and industrial low or high pressure boiler applications. For boilers of any steaming capacity. Monel bellows provides corrosion resistance. Float chamber with integral water column provided Snap action for high temperature service - 1 Single pole, single throw switch for pump control - 1 Single pole, double throw switch for low water cut-off and alarm actuation. Optional features - Manual reset - Integral conductance probes for additional levels and greater operating differential-Model 157S-RBP-MD - 1" or 1-1/4" NPT equalizing tapings - 1/2" or 3/4" NPT tapings ...

McDonnell & Miller Series 51-2 Mechanical Water Feeder/Low Water Cut-off 51-2, #2 Switch For low pressure steam and hot water boilers larger than 5,000 sq. ft. (465m2) capacity with cold water feed. Quick-change replaceable cartridge valve and strainer. Optional features - No. 2 switch - Manual reset - Float block. Proportional feed action. Model 51 can be field upgraded with a No. 2 switch to add low water cut-off function. Maximum water supply pressure 150 psi (10. 5 kg/cm2). Maximum inlet water temperature 120°F (49°C). Maximum vessel pressure 35 psi (2. 5 kg/cm2). Made in ...

Safgard™ Model FS200 Liquid Flow Switch EPDM seal for superior performance over mechanical bellows. Universal design replaces flow switches by Mcdonnell Miller, Penn, Taco, Potter, Watts and others. Single pole double throw switch for operating signal devices, motors, alarms, metering devices and heating units. Includes four heavy duty stainless steel paddles. Two 7/8" electrical knock-outs for 1/2" conduit. For use on 1" to 6" diameter pipe. 1" Npt pipe connection. Made in the USA. Click For Instructions

For residential and commercial low pressure steam boiler applications. For boilers of any steaming capacity. For mounting in 2-1/2" NPT boiler side tapings. Insertion lengths available in 13/16 - 41/8" (30-105mm). Pack less bellows. Adjustable BX outlet for easy installation. Dual precision switches for dependable operation of the low water cut-off and an alarm or electric water feeder. Optional low voltage switches for self-generating mill volt circuits. Maximum steam pressure 20 psi (1. 4 kg/cm2). Made in the USA .

Kills fungal growth and prevents future growth in fuel storage tanks. There are several forms of fungi that survive and multiply in hydrocarbon fuels, growing into long strings and eventually forming large mats or globules. These fungi may grow throughout the fuel or at the interface level between the fuel and bottom layer of water in the tank. During filling, as fuel is agitated, this growth is distributed throughout the fuel system, clinging to walls and supporting structures in the tank. The resulting sludge clogs filters, blocks nozzle lines and plugs nozzles. Shock Application: 1 oz. ...