AMCO AFV Axial Flow Valve (ANSI 600#-4") - Technical Specification
Basic Information
- Brand: AMCO
- Model: AFV ANSI 600#-4"
- Origin: USA
- Delivery Time: 1-2 weeks
Core Components
The axial flow valve is composed of three main parts:
- Valve Body
- Body: Galvanized carbon steel.
- Rectifying Fence Sealers: Two interchangeable units made of stainless steel.
- Expandable Rubber Sleeve: The core component, available in different materials.
- Fasteners: Bolts and rounded cap screws for overall assembly.
- Control Manifold
- Adjustable Restrictor: Integrated design to adjust the valve's response speed.
- Filter: Located at the front of the restrictor to remove foreign particles.
- Venturi-type Manifold (Optional): Used for applications with small pressure differentials, reducing the pressure drop required for full opening.
- Actuator
Working Principle
The valve's operation is governed by the balance between control pressure and downstream pressure, with the expansion and contraction of the rubber sleeve being the key mechanism.
- Fully Open Position: Control pressure is low, and downstream pressure forces the valve open. The downstream rectifying fence protrudes fully into the upstream section, allowing full airflow.
- Throttling Position: Control pressure enters the outside of the sleeve, causing it to partially expand. This partially closes the airflow passage, regulating the flow.
- Closed Position: When downstream gas is sufficient and the residual pressure balances with the control pressure, the sleeve fully expands, closing the valve passage.
