Blow-off Valve: The primary purpose of a blow-off valve is removal of dirt, sediment and scale.  Yarway blow-off valves are available in two broad categories - sliding and seat & disc.		Hy-Drop Throttling The Hy-Drop Throttling Valve is designed for continuous blowdown, but also works well for sampling, high pressure vents, boiler feed pump bypass relief, high pressure drop services and even venturi designs.		Welbond High Pressure Globe Valves The Yarway Welbond Valve has become an established stop valve for general line service in modern high pressure power plants.
Vent/Drain Valves Plant equipment such as boilers, turbines, and heaters requires vent and drain lines.  These lines must be sealed with two valves during normal operation to prevent and loss of fluid.		Color-Port and Flat Glass Water Level Gages Color-Port gages provide continuous indication of boiler water levels as required by the 1986 ASME Boiler and Pressure Code.		Series 4161N and 4187F Flat Glass Water Gages Flat Glass gages give full uninterrupted view of water level; pressures to 3000 osi (207 bar). Some features: simple and fast servicing, continuous visibility and easy to read meniscus.
4200 Reflex Flat Glass Liquid Level Gages Yarway's Series 4200 provides Boiler Drum level indication, feedwater heater level indication, and other pressurized/unpressurized vessel level indication, i.e. deaerators.		4300N and 4600N Flat Glass Liquid Level Gages Yarway's Series 4300N is designed for use in steam service up to 400 psig (28bar) at 448°F for Boiler Drum, Feedwater Heater and other vessel level indication applications.		Remote Liquid Level Indicating System The Yarway liquid level indicator, a differential pressure device, is operated by the water vessel itself, using the weight difference between a constant head and variable head of water.

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Last modified: November 2004