S TYPE OF CHECK VALVE
A directional valve is a type of hydraulic or pneumatic control component that directs or controls the flow of fluid (oil, air, or other media) by switching flow paths. It determines the path of fluid flow in a hydraulic or pneumatic circuit, controlling the direction of motion of actuators like cylinders and motors.

S Type Check Valve Overview

The S Type Check Valve is designed to allow hydraulic oil flow in one direction while blocking flow in the opposite direction. This one-way flow characteristic is essential in hydraulic systems where controlled flow is needed to prevent backflow. The valve features a pipe connection (type “G”) for easy installation in various hydraulic systems.


Technical Specifications

Parameter Description
Function Allows flow in one direction (from P1 to P2), blocks flow in the opposite direction.
Connection Type Pipe connection (Type “G”)
Spool Symbol

Flow direction symbol from P1 to P2


Ordering Code Breakdown

Position Code Description
1 S Product series: S Type Check Valve
2 G Pipe connection: Type G
3 Nominal Diameter Diameter sizes available: 6, 8, 10, 15, 20, 25, 30, 40
4 Starting Pressure Starting pressures available:
0 Without spring
1 Starting pressure: 0.05 MPa
2 Starting pressure: 0.15 MPa
3 Starting pressure: 0.30 MPa
5 Starting pressure: 0.50 MPa
5 Connection Type No mark = Inch size, 2 = Metric size
6 Customization 0 = Standard (no customization), customized by manufacturer upon request

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