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  • STYB7系列背压阀(1)(1).jpg

STYB7 Series Back Pressure Valve/Pump Protection Valve

The pump protection valve is self operated, and the valve core under the action of spring force moves axially, creating a pressure difference before and after the back pressure valve. At the same time, the opening of the hole on the valve seat gradually increases until the pressure difference reaches the set point.

Classification


Keywords: Valve

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Detailed introduction

STYB7 Series Back Pressure Valve/Pump Protection Valve

Summary

The STYB7 series backpressure valve, also known as a pump protection valve, is used in working conditions that are not suitable for general control systems. As a special pressure control valve, it is often matched with automatic recirculation and used in pump protection systems. Backpressure valves are also widely used in other control valve systems. The backpressure valve controls the upstream pressure to reach the pressure value set by the factory process or the pressure value required by the system, preventing vaporization and cavitation. Carefully matching the process conditions between the automatic recirculation valve and the backpressure valve ensures that the pump is well protected, providing assurance for the long-term stability and safe operation of the system.

Action principle

The pump protection valve is self operated, and the valve core under the action of spring force moves axially, creating a pressure difference before and after the back pressure valve. At the same time, the opening of the hole on the valve seat gradually increases until the pressure difference reaches the set point.

Maintenance

The pump protection valve is easy to maintain. Installation and maintenance manuals are available.

Valve size

Standard size: DN25~DN150 (1 "-6")

Pressure level

Nominal pressure range: PN10~PN400 (ANSI 150Lbs~ANSI 2500Lbs) Other pressure ratings are provided on demand.

Connect

The flange standard follows DIN or ANSI, and its standards (such as ISO, BS, JIS, NF) can be customized.

 
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