Series
C2.9511
Pilot-Operated Check Valves
without/with pre-release
version with pipe thread, max. operating pressure 500 bar
version with pipe thread, max. operating pressure 500 bar
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Operating instructions
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Information Series
Description
C 2.9511 Pilot-operated check valves
Pilot-operated check valves are spring-loaded poppet valves with free flow from B to A and blocked flow in the opposite direction that can be "unblocked" by pressurizing the control port Z. The minimum pressure required for unblocking depends on the height of the counter pressure at port A (see diagram).
In the pilot-operated version fist a smaller poppet valve located in the main valve piston is opened.
This offers the following advantages:
- The control pressure required for opening is considerably lower, and thereby the use of swing clamps with unfavourable surface ratios is possible.
- pressure reduction is effected relatively softly. That saves all hydraulics components and the noise level sinks.
Products (3)
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Item no.
type
pipe-thread type
max. operating pressure [bar]
500
max. flow rate [l/min]
15
pre-release
without
ports A, B
G1/4
control port Z
G1/4
Item no.
type
pipe-thread type
max. operating pressure [bar]
500
max. flow rate [l/min]
55
pre-release
with
ports A, B
G1/2
control port Z
G1/4
Item no.
type
pipe-thread type
max. operating pressure [bar]
500
max. flow rate [l/min]
55
pre-release
without
ports A, B
G1/2
control port Z
G1/4
Application examples
Application example 1
pipe-thread type C2.9511
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Please note: Our CAD data are generally simplified data and primarily reflect the outer contour and connections of the product (see also Terms of use). Please always refer to the relevant catalogue sheet for the exact dimensions with tolerances, in particular the information on mounting holes or attachments such as special clamps.
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