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Fisher Yarway AT-38/48 Standard Duty A.T.-Temp Desuperheater

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Taneli Luhanko
Inside Sales Engineer
Phone. 0207 416 202
Mob. 040 757 4208

Emerson Fisher™ Yarway™ desuperheater is a mechanically atomized insertion type with integrated water control through a pneumatic, electric or hydraulic actuator.

The fabricated construction makes it easily adaptable to meet various boiler codes and material specifications, the Yarway desuperheater have a very wide range of nozzles and combinations to match the total control range.

Commonly installed after heaters & super-heaters, but also available for cryogenic services.

Tekniset Tiedot
Ominaisuudet

Critical Service	Steam Condition
Valve Size	NPS 1 / DN 25, NPS 1-1/2 / DN 40, NPS 2 / DN 50, NPS 3 / DN 80, NPS 4 / DN 100
Pressure Class	ASME

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.
The valve stem is rolled to obtain a finish of Ra < 0.1 µ. This highly finished surface is then nitrided to give a hardness of > 1000 Vickers. The combination of these processes improves sealing tightness, while reducing packing friction.
Piston rings are specially hardened and subsequently nitrided and are provided with a special gas tight slot.
These rings offer excellent running properties and enable controllable Cv (Kv) values as low as 0.005 (0.0043).

Brands

Fisher Yarway AT-38/48 Standard Duty A.T.-Temp Desuperheater

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