STEAM CONDITIONING VALVE

Pressure Reducing And Desuperheating Valve

The principle function of any desuperheater is to accelerate the phenomena of absorption of the spray water by the steam so that steady conditions of steam temperature are reached within a short distance from the outlet at all loads. This ensures that poor quality of steam or water droplets are not carried downstream in the steam pipeline. The purpose therefore, is to develop methods by which heat transfer between steam and water can be hastened. The main purpose is to break spray water droplets into very fine particles at all loads to ensure increased surface area for water to come in contact with the steam is available, thereby increasing the rate of evaporation. It is very clear that the size of the water droplets should be smallest, utmost surface area available, absorption will be almost instantaneous and true temperature will be measured within the shortest distance.

In all instances of desuperheating, the nature of the downstream steam and the avoidance of large spray water droplets that can be propelled at high speed to damage elbows, valve seats, heat exchanger tubes, or process material are very important factors while designing desuperheating system and equipment selection.

STEAM CONDITIONING VALVE ‘SC’
Mazda series `SC' steam conditioning valve with revolutionary multinozzle atomizer and feed forward design adds to our latest generation of quality valves. The equipment is utilised for simultaneous pressure and temperature reduction of steam. The cooling water is introduced in the highest turbulent zone of the steam. High steam velocity at this point, results in the highest coefficient of heat transfer between the steam and water. The feed forward design assures soft misty spray and instantaneous temperature control over the full range of steam flow.

	For high pressure let-down, pressure drop is taken across concentric flow cages rather than across seating surface, resulting in minimal seat wear.
	Pilot operated cage design to achieve extremely tight shut off (leakage classification ANSI # V)
	Balanced design with heavy duty pilot spring greatly improves throttling stability at high /\ P.
	Larger outlet and outlet diffuser options give noise attenuation at optimum design conditions guaranteeing outlets sound pressure level to 85 dBA.
	Stellited trim increases its resistance to corrosion, erosion by abrasion, galling and sticking.

* On Request Product Catalogue Available