Boiler Feed Water Control Valve

A main feed water control valve is designed for the total flow of the steam generation at low differential pressures. They come in all types from ball valves to knife gates to globe valves and operate. The pressure drop across the valve should be minimized but still give a l good control characteristic.

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Off of many types of signals.

Boiler feed water control valve.

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. To protect against this the feedwater valves are sized for minimal pressure. The feedwater valves are normally sized to accommodate an operating condition that occurs when the safety valves open during a unit trip. The valve s requirements are high.

Modulating feed water valves modulating feedwater valves allow for constant incremental adjustments to feed water into your boiler. The valve controls the supply of feed water to the boiler. 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.

Some typical applications are 0 135 ohm slide wires from a mcdonnell and miller 7b switch or a 4 20ma signal from a. 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. It is critical not to allow the hrsg to dry out which can cause severe thermal damage to the boiler tubes and the drums. They come in all types from ball valves to knife gates to globe valves and operate off of many types of signals.

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