In-line pilot operated check valves
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VBPSL in-line pilot operated check valves with external pilot port
In power hydraulic systems, precise control of the working fluid flow direction is the foundation of safe and efficient machine operation. In this HYDRON shop category, we offer high-class in-line hydraulic pilot operated check valves with external pilot port. These are specialized shut-off components that allow free oil flow in one direction, while movement in the opposite direction is permanently blocked until appropriate opening pressure is supplied to the control port (pilot).
Application and advantages of in-line pilot operated check valves
In-line operated valves (in-line hydraulic locks) are widely used in industrial and mobile applications where uncompromising tightness and protection against uncontrolled falling of receivers under load are required. They are used, among others, in hydraulic cylinder locking systems, construction and agricultural machinery, and hydraulic presses.
The most important advantages of the offered solutions include:
- High pressure resistance: Depending on the model, the valves in our offer are characterized by a maximum working pressure ranging from 300 to even 500 bar.
- Durable construction: Valve bodies are made of high-quality galvanized steel, which ensures excellent protection against corrosion and harsh environmental conditions.
- Wide temperature range: Components are designed for stable operation in extreme temperatures from -40°C to +100°C.
- Connection versatility: We have valves with the most popular BSP internal threads (in sizes 3/8", 1/2", and 3/4").
Wide selection of VBPSL and VBL/3 SE valves in the HYDRON shop
When completing our assortment, we make sure to provide only proven components from renowned power hydraulic manufacturers. We have in permanent sale, among others:
- VBPSL series valves: Excellent flow parameters and compact in-line design.
- VBL/3 SE series valves: Valued for reliability in systems requiring stable control by an external hydraulic signal.
Don't know what thread size or maximum flow (l/min) will be optimal for your system? Use the search filters on our website or contact the HYDRON technical advisory team. We provide professional support in the selection of power hydraulic components and fast shipping of orders directly from our warehouse.


|
CODE CODE |
THREAD PORT SIZE |
||
|
VBPSL 1/ 4” |
G 1/ 4” |
15 |
350 |
|
VBPSL 3/ 8” |
G 3/ 8” |
30 |
300 |
|
VBPSL 1/ 2” |
G 1/ 2” |
45 |
200 |
|
VBPSL 3/ 4” |
G 3/ 4” |
80 |
250 |
VBL/3 in-line pilot operated check valves with external pilot port


|
CODE CODE |
THREAD PORT SIZE |
MAX FLOW MAX FLOW |
MAX PRESSURE MAX PRESSURE |
|
VBL/3 1/ 4” SE |
G 1/ 4” |
20 |
350 |
|
VBL/3 3/ 8” SE |
G 3/ 8” |
40 |
350 |
|
VBL/3 1/ 2” SE |
G 1/ 2” |
70 |
350 |