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A plant generates steam for a range of purposes, be that for heating and process operations or for generating power, or in some cases for both. Steam properties though need to be different for power generation as opposed to steam properties used for process applications. Steam for power generation is typically in a superheated condition, whereas steam used in process applications is typically saturated steam. In the case where the steam is being used for both applications, power is likely to win out and hence the steam is more likely to be created in a superheated condition, and then desuperheated to its saturated condition for use as process steam.
Two types of desuperheater are available from Mascot. These include a Fixed Orifice Mechanical Spray type desuperheater, and a Variable Nozzle Spray desuperheater.
The fixed orifice mechanical spray relies upon pressure drop across the spray nozzle to achieve the required atomisation. In this arrangement a separate control valve is used to control the amount of Spraywater fed into the steam flow.
A variable nozzle spray desuperheater provides an economical solution by combining Spraywater function and Water control into one unit. The variable spray nozzle utilises constant water pressure to create a fine conical spray which is injected into the steam flow.
Mascot has provided steam desuperheating solutions for over 30 years. Our extensive knowledge and experience of steam and in particular desuperheating applications allows Mascot Engineers to select the correct desuperheater for these demanding applications. With a focus on maximising Customer’s production and reducing overall plant operating costs, the design of Mascot control valves provides the lowest MTBPM against of our major competitors and hence are ideally suited to the steam processing industry.
DEAR SIR / MADAM,
ANNOUNCE THAT WE ARE PRESENTING
MASCOT CONTROL VALVES
FOR INDUSTRIAL PROCESS SAFETY AND PRODUCT APPLICATIONS