Boiler Feed Water Control Valve

Some typical applications are 0 135 ohm slide wires from a mcdonnell and miller 7b switch or a 4 20ma signal from a.

Boiler feed water control valve.

The pressure drop across the valve should be minimized but still give a l good control characteristic. The valve controls the supply of feed water to the boiler. Taco boiler feed valves automatically feed water to a system whenever pressure in the system drops below the pressure setting of the valve the dual control models combine the boiler feed with an in line pressure relief valve. Off of many types of signals.

The valve s requirements are high. The feedwater valves are normally sized to accommodate an operating condition that occurs when the safety valves open during a unit trip. It is critical not to allow the hrsg to dry out which can cause severe thermal damage to the boiler tubes and the drums. Boiler feedwater the mark 33 is a motor operated valve featuring the jordan sliding gate seat and heavy duty industrial motors for proportional resistance on off 4 20 ma electronic control.

Models include the mark 33 in sizes 1 4 through 2 dn8 through dn50 the high flow mark 331 332 with cv s up to 70 60 34 kv and the mark 39 with. Modulating feedwater valves allow for constant incremental adjustments to feed water into your boiler. Modulating feed water valves modulating feedwater valves allow for constant incremental adjustments to feed water into your boiler. A main feed water control valve is designed for the total flow of the steam generation at low differential pressures.