What is a fire gate valve?
What is a fire gate valve?
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 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.
What are different types of gate valves?
Types of Gate Valves
- Solid taper wedge.
- Flexible wedge.
- Split wedge or Parallel disks Valve.
Where are Kennedy valves made?
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. Kennedy Valve expands with the addition of a brass foundry.
How does a gate valve work?
Gate valves work by inserting a rectangular gate or wedge into the path of a flowing fluid. They are operated by a threaded stem which connects the actuator (generally a hand wheel or motor) to the stem of the gate. When fully open, a gate valve has no obstruction in the flow path and so has a very low pressure drop.
What is a gate valve sensor?
The System Sensor OSY2 is used to monitor the open position of an Outside Screw and Yoke (OS&Y) type gate 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.
What are the 2 types of gate valves?
Gate valves can be divided into two main types: Parallel and wedge-shaped. The parallel gate valves use a flat gate between two parallel seats, and a popular type is the knife gate valve designed with a sharp edge on the bottom of the gate.
Which valve is known as AND gate?
A gate valve, also known as a sluice valve, is a valve that opens by lifting a barrier (gate) out of the path of the fluid.
Where are American valves made?
It means ordering raw materials from domestic foundries and forging houses only. It means standing firmly by our tradition of manufacturing valves that are designed, machined, assembled, and tested, from start to finish, in our own plant in Oklahoma City, Oklahoma.
Is American Valve Made in USA?
Made in North Carolina, this bronze ball valve is designed for non-potable service.
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.
What are bronze gate valves used for in fire protection?
Fire protection bronze gate valves with OS&Y used for isolation and positive shutoff in an automatic fire sprinkler system.
What is the AWWA standard for gate valves?
Gate valves for Fire Protection here are in accordance with American Water Works Association (AWWA) C515 standard.
What makes a Mueller wedge gate valve resilient?
Mueller® resilient wedge gate valves have features to make them easier to operate, preserve sealing capability, and interior coating integrity for many years of reliable service. Numerous designs and end connections are available that meet stringent UL/FM requirements, some with maximum working pressures of 350psi.
