It is used as a shut off valve on water feed lines to disconnect control in situ zones.
Os y gate valve.
Os y gate valves operate by opening and closing via a gate which lowers into or rises out of the valve.
When the handle is turned clockwise the gate will close preventing any water from traveling through the valve.
An os y valve outside screw yoke functions by opening and closing via a gate which lowers both in and out of the valve.
On every os y valve there is a packing nut or packing screws.
Sometimes the packing nuts can be too tight or too loose.
It is identified as a local control valve.
The purpose of these is to hold the packing material of the valve tightly in place so there are no leaks.
A butterfly valve or ris.
If the valve handle on an os y valve will not move the packing may be too tight.
The screws of the valve are held by a yolk on the.
Raising the gate allows water to flow through the valve while lowering the gate cuts off the water flowing through the valve.
In such cases the valve gate attaches to a threaded stem with a handle that connects to the yoke element.
By andrea stein.
A clockwise rotation of the gate moves the stem back into the gate and closes the valve.
When the handle is turned clockwise the gate will close preventing any water from traveling through the valve.
Os y means outside stem and yoke or outside screw and yoke.
When the handle is turned counter clockwise the gate will open allowing the water to flow through freely.