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AT-18/28 | Fisher™ Yarway™ AT-18/28 Heavy Duty A.T.-Temp Desuperheater | Fisher

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Fisher™ Yarway™ AT-18/28 Heavy Duty A.T.-Temp Desuperheater

The Fisher Yarway AT-18/28 Heavy Duty A.T.-Temp Desuperheater was specifically developed for use on medium/high pressure steam applications. The fabricated construction makes it easily adaptable to meet various boiler codes and material specifications. The unit can also be used as a liquid into gas injector for which high grade alloy such as stainless steel is often used.

Forged construction
High quality stuffing box; containing no asbestos
Variable nozzle type
Wide range of Cv (Kv) capacities available
Special nozzle combinations available
Semi balanced internals for economic actuator selection
Pneumatic actuator available
Pressure class and connections: ASME B16.34 class 900 to 2500 EN 1092 PN 160 - 400
Materials: ASTM SA 182 F22 or 1.7383; ASTM SA 182 F347H or 1.4550; ASTM SA 182 F91 or 1.4903; Other materials upon request

Specifications

Item Number	AT-18/28
Brand	Fisher
Critical Service	Steam Condition
Flow Characteristics	Special Characterization; Modified Equal Percentage; Linear; Equal percentage
Material	Alloy
Operating Temperature	High Temperature
Other Configurations	Contact your local Emerson office to learn about additional specifications or options for this product.
Pressure Class	PN; ASME
Series	Fisher™ Yarway™ AT-18/28 Heavy Duty A.T.-Temp Desuperheater
Shutoff Class	Class V (FCI 70-2)
Type	Control Valve
Valve Size Standard	DN; NPS
Valve Size	NPS 1 / DN 25; NPS 1-1/2 / DN 40; NPS 2 / DN 50; NPS 4 / DN 100; NPS 3 / DN 80
Valve Type	Angle Valve