KF Flange Pneumatic High Vacuum Angle Valves: Overview, Working Principle, Structural Features & Technical Parameters

The KF Flange Pneumatic High Vacuum Angle Valve uses compressed air as power. It changes the direction of the air circuit through a solenoid directional valve, pushes the cylinder piston to move up and down, drives the valve stem to move up and down, and makes the valve plate open or close, thereby achieving the purpose of connecting or cutting off the air flow in the vacuum system. Type J is an angle-through type, and Type S is a three-way type with a pre-pumping port. The applicable working medium of the KF Flange Pneumatic High Vacuum Angle Valve is air and non-corrosive gas.

Working Principle

The Pneumatic High Vacuum Angle Valve is a vacuum valve used in vacuum systems to open or cut off air flow. The valve is powered by compressed air. It is executed by a cylinder, and the solenoid directional valve changes the direction of the air circuit to drive the valve stem to move up and down, so as to achieve the purpose of opening or closing the valve plate. The shaft seal structure of the Pneumatic High Vacuum Angle Valve can be divided into two types: fluororubber seal and bellows seal, and Type S is a three-way type with a pre-pumping port. The Pneumatic High Vacuum Angle Valve has normally open and normally closed functions, and can be equipped with magnetic switch signal control, explosion-proof solenoid valve and air source treatment component device. The applicable working medium of the High Vacuum Angle Valve is air and non-corrosive gas.

Structural Features

1. Suitable for high vacuum environment: The Pneumatic High Vacuum Angle Valve can withstand high vacuum degree, ensuring effective cutting off or connecting of air flow in the vacuum system.

2. Stable and reliable operation: Due to the adoption of cylinder drive, the movement of the baffle is stable and reliable, and it is not easy to generate vibration or impact.

3. Good sealing performance: The sealing surface between the baffle and the valve body is reasonably designed, which can effectively prevent gas leakage.

4. Simple structure and convenient maintenance: The structure of the Pneumatic High Vacuum Angle Valve is relatively simple, easy to disassemble and maintain, and reduces maintenance costs.

Technical Parameters

• Applicable Range (Pa): 10⁵～1.3×10⁻⁴

• Valve Leak Rate (Pa·L/S): ≤1.3×10⁻⁶

• Medium Temperature (℃): -25～+80 (Sealing Material: Nitrile Rubber); -30～+150 (Sealing Material: Fluororubber)

• Air Source Pressure (MPa): 0.4～0.8

• Installation Position: Arbitrary for DN＜300; Vertical for DN≥300

• Power Supply Voltage: Standard Delivery: AC220V/50Hz; Designated: AC110V; DC24V; DC12V, etc.

• Signal Feedback: Standard Delivery: Without Feedback Signal; Designated: Magnetic Switch DC/AC5～240V