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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 spool under the spring force moves along the axial direction, so that a pressure difference is generated 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
Overview
STYB7 series back pressure valve is also called pump protection valve. It is used for working conditions that cannot be applied to general control systems. As a special pressure control valve, it is often used with automatic recirculation
 
matching, for pump protection systems. Back pressure valve in other control valve system also has a large number of applications. The back pressure valve controls the upstream pressure to reach the pressure set by the factory process.
 
The force value or pressure value required by the system to prevent vaporization and cavitation. Careful matching of process conditions between the automatic recirculation valve and the back pressure valve ensures optimum pump performance
 
The protection of the system provides a guarantee for long-term stability and safe operation.
Principle of action
The pump protection valve is self-operated, and the spool under the spring force moves along the axial direction, so that a pressure difference is generated before and after the back pressure valve. At the same time, the opening of the hole on the valve seat gradually changes
 
until the differential pressure 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 rating
Nominal pressure range: PN10 ~ PN400(ANSI150Lbs ~ ANSI 2500Lbs) Other pressure levels are provided as required.
Connection
Flange standard according to DIN or ANSI, its standard (such as: ISO,BS,JIS,NF) can be specially made.
 
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