What does Kennedy Valve do?
In the 135 plus years since its founding, Kennedy Valve has expanded to be a full-line waterworks valve and hydrant manufacturer, supplying resilient seated gate valves, fire hydrants, check valves, butterfly valves, indicator posts, grooved butterfly valves and an assortment of related products and appurtenances.
Where are Kennedy valves made?
Elmira, N. Y.
Kennedy firm becomes the Kennedy Valve Manufacturing Co. The Kennedy Valve business continues to develop rapidly, and a larger, more modern plant is built on a 20-acre site in Elmira, N. Y. — now 52.59 acres.
What does OS&Y mean on a valve?
outside stem and yoke
QUICK. April 2012. One type of valve commonly used to control water flow to fire sprinkler systems is known as an OS&Y gate valve. OS&Y means “outside stem and yoke” or “outside screw and yoke”. OS&Y gate valves operate by opening and closing via a gate, which lowers into or rises out of the valve.
What is AWWA C515?
The AWWA C509 design standard was developed based on the physical characteristics of cast iron while AWWA C515 was developed based on the more robust physical characteristics of ductile iron. AWWA C509 standard was developed in 1980 to formalize the design standard for resilient seat valves for water and waste water.
How do I know if my OS&Y valve is open?
Outside Stem & Yoke (OS&Y) valve (also called an indicating gate valve)—Indicating type means that one can visually determine if the valve is open or closed. An OS&Y valve is open when the threaded stem extends from the valve. The valve is closed when the stem is not visible above the control wheel.
How do I know if my gate valve is working?
Gate valves have a knob on top that when turned raises and lowers the gate inside, hence the name. To turn on the gate valve, you turn the knob counter-clockwise, and you turn it clockwise to turn off the valve. There is no visual indicator to see if a gate valve is open or closed.
Is a post indicator valve required?
NFPA 24 regulates system requirements between water supply mains and service entries into a building. Starting with the 2010 edition, however, NFPA 24 stopped mandating the exclusive use of post indicator valves for isolating a building’s fire protection systems. Instead, the 2019 edition of NFPA 24 (6.2.