Ayvaz OS&Y Rising Stem Valve with ANSI Flange
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Rising Stem Valve Ansi Flanged
ORFA Industrial Products Industry and Trade Inc. offers a Rising Stem Valve with ANSI Flange, designed to provide reliability and effective control in fire systems. This valve is used as a regional control and shut-off valve, and its monitoring switch allows the location of fire systems to be seen and monitored.
The valve shaft allows you to easily determine the fully open and fully closed positions by rotating the handwheel. Additional monitoring switches, mounted in grooves on the shaft, transmit open and closed position information to the automation system via dry contacts. This feature is suitable for use in both indoor and outdoor environments.
Product Features
Connection Type: Ansi Flanged
Working Pressure: 300 PSI
Maximum Operating Temperature : 80°C
Dimensions: 1” – 12”
Body Material: Cast Iron
Slide Material: Cr-Ni Coated Bronze
Shaft Material: Brass or Stainless Steel
Flywheel Material: Ductile Iron
Approvals
UL Listed
FM Approved
Technical Information
The Rising Stem Valve offers durability and long-lasting use with its cast iron body and Cr-Ni-coated bronze slide. Its brass or stainless steel stem moves easily with the rotation of the handwheel, allowing you to determine whether the valve is fully open or fully closed. It is resistant to 300 PSI operating pressure and a maximum operating temperature of 80°C. Its ANSI flanged connection allows for easy integration into various piping systems.
Working Principle of Rising Stem Valve ANSI Flanged
Flywheel Spinning:
Flywheel Spinning:
The rising stem valve's operation begins with turning the handwheel, either manually or via a motor. When the handwheel is turned, the valve stem (stem) moves up or down. Clockwise rotation closes the valve, while counterclockwise rotation opens the valve.
Mechanical Movement:
The handwheel is rotated by a gear mechanism that moves the spindle up or down. This movement causes the slide (disc or flap) inside the valve to move up or down. When the slide moves up, the valve opens; when it moves down, the valve closes.
Location Tracking:
As the valve stem moves up and down with the rotation of the handwheel, the valve position can be easily monitored through grooves (notches or grooves) on the stem. These grooves allow visual verification of whether the valve is fully open or fully closed.
Monitoring Key (Optional):
Rising-stem valves may have monitoring switches mounted in grooves on the stem. These switches send electrical signals (dry contacts) indicating whether the valve is open or closed. These signals can be integrated into the automation system, allowing for remote monitoring and control of the valve's status.
Sealing and Pressure Management:
When the valve closes, the spool seats tightly against the valve seat, stopping fluid flow and ensuring a leak-tight seal. The design of rising stem valves aims to minimize pressure loss, which helps optimize pump pressure. The cast iron body and Cr-Ni coated bronze spool ensure high durability and long service life.
Application Areas
The Rising Stem Valve with ANSI Flange has a wide range of applications in fire safety systems. It is particularly commonly used in water tank fronts and pump suction and discharge lines. It can be safely used in many fire installations, including powder and gas extinguishing systems. Suitable for both indoor and outdoor use, this valve offers a reliable solution in fire safety systems.
Advantages
Visual Monitoring: Easy monitoring of valve position increases system safety.
Low Pressure Loss : Provides lower pressure loss compared to other control and cut-off valves.
Durability : The cast iron body and Cr-Ni coated bronze slide have a long-lasting and durable structure.
The Rising Stem Valve with ANSI Flange is a key component designed to provide effective control and reliable monitoring in fire safety systems. Its features, including easy monitoring, low pressure loss, and durability, play a critical role in fire installations. At ORFA Industrial Products Industry and Trade Inc. , we are proud to present the benefits this valve offers in your fire safety systems.
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