Johnson Controls VG7243CT globe valve is ideal for regulating the passage of water and steam in accordance with the controller within heating, ventilating and air conditioning (HVAC) systems. This Johnson Controls globe valve regulates fluid flow by adjusting the position of a movable disk or plug within the valve body, maintaining accurate control of temperature, pressure and fluid distribution in different systems.
Working Mechanism:
- Upon adjusting fluid flow or temperature, the control system emits a signal directed to the globe valve's actuator.
- The actuator, typically an electric motor, receives the signal and initiates motion.
- The actuator's motion prompts the rotation of the valve stem. The valve stem connects to a disk or plug housed within the valve body. As the stem turns, the disk either moves closer to or farther from the valve seat.
- Fluid flow regulation is achieved by altering the disk's proximity to the valve seat. Closer placement restricts or halts the flow, while greater distance permits increased flow.
Frequently Asked Questions:
Q. How do you identify a globe valve?
A. Globe valves derive their name from their distinctive spherical body configuration. They feature an internal baffle that divides the body into two sections. This partition incorporates an aperture that shapes a seating area, onto which a movable plug, known as a disc, can be threaded to seal the valve in a closed position.
Q. What is the maximum water temperature that this globe valve can withstand?
A. It can withstand a water temperature of up to 338 degrees F.
Q. How do I choose a globe valve?
A. When choosing a globe valve, consider its compatibility with specific conditions like temperature, pressure and fluid type. To determine the right globe valve, assess the valve size, material composition, pressure rating, industry standards and valve design. By evaluating these aspects, you can identify the most suitable globe valve for your intended application.
Q. What is the pre-installation procedure of this Johnson controls VG7243CT globe valve?
A.
- Ensure proper valve installation by mounting it upright in an accessible location.
- Shield the electric actuator from water drips that could harm its components.
- Avoid covering the actuator with insulation and provide adequate clearance for potential removal.
- Properly orient the valve by following the flow direction indicated by the arrow on the valve body, ensuring that the plug seats against the flow.
- Adhere to electrical code regulations when wiring electrically actuated valve assemblies, ensuring correct wiring of input lines to the actuator.
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Order Value should be £500+