Outside Screw And Yoke Gate Valve
The NIBCO® flanged, ductile iron, gate valve is designed to be the main control valve in an automatic fire sprinkler system. OS&Y valves visibly show whether the valve is opened or closed which differs from a domestic water service where you can simply turn on the shower or sink to test its functionality. That means that when the handle is turned it directly raises and lowers the gate of the valve by interacting directly with the stem of the valve. Gaskets are carefully designed to produce a tight seal regardless of the line conditions that can be easily dismantled for maintenance operations.
- Gate valve outside screw and yoke kit
- Gate valve outside screw and yoke replacement
- Outside screw and yoke valve
Gate Valve Outside Screw And Yoke Kit
250Nb R/G Gate Valve OS&Y. ASME Specifications: ASME B16. The variant Pressure seal bonnet is described below. One reason for that is, the expanding action can tend to trap hard particles between gate and seat. What is an OS&Y valve? Internal pressure tends to create leaks in the body bonnet joint. Height: 52-13/20 in.
Gate Valve Outside Screw And Yoke Replacement
Bronze, heavily constructed and rectangular in section. Simply loosen the packing nut or packing screws a couple of turns. Afterwards remember to tighten pack the packing. Model: RGA33 Series. J&S Valve - Series 3900 - AWWA C500 - Metal Seated Gate Valve, Ductile Iron, NRS, Flange, with 2" operating nut. Sealing is by differential pressure. When the stem of the OS&Y is raised out of the body you know the water is on. Customary stem notch for switch installation and two factory plugged tapping bosses on valve body are some of the on-site application friendly designs. And tell if it is open or closed by the position of the shaft. If you are installing a new 2"copper main or a main smaller in size, you will be required to install the same size tap connection on the city main. In those situation these valve are used instead. Residental or Contractor *.
Outside Screw And Yoke Valve
Flexible wedges have a grove cut in it, which makes it sit on the seat surface more easily. Our office will resume its operations in. Bodies 6″ and larger may be used with by-passes and drains. Valves like wedge type when closed in heat lines during hot temperature may be very difficult to open in cold temperature due to expansion. Gate vales ≤ 2" are provided with reduced port (sometimes called conventional or standard). And advantage of rising stem valves is the ability to determine valve position by observing the position of the stem. Do not use brute force to make the handle move. All water main valve handles must be the following: Dedicated standpipe valve handles must be painted red. This valve has a bevel on knife edged single piece parallel slide gate valve and is designed to handle slurry, solids which are liable to obstruct a wedge gate.
On a typical gate type valve a visual inspection cannot determine whether the valve is open or closed. Stem: Stainless Steel 304. STI - Safety Technology International. Valve Bonnet Type: Bolted. The handle and the stem are both threaded so they interact together. Gate valve is an isolation valve valves open when a gate is lifted from the path of flow and close when the gate returns to its position (hence the name). An OS&Y valve is the type of valve required by code for NYC water main service lines that provide fire protection. If an OS&Y valve leaks or the handle will not move. Flanges save 1/16″ raised face. Dimensions, drilling and facing of flanges conform to American Cast Iron Flange Standard, Class 250 (ASME B16. Regular customer service hours resume on, at EST.