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Series
C2.9512

Pilot-Operated Check Valve

without/with pre-release
manifold-mounting type, max. operating pressure 500 bar
Pilot-Operated Check Valve
Downloads
Catalogue sheet
DEENFRESIT
Operating instructions
Information Series
C 2.9512 Pilot-Operated Check Valve

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 pressurising the control port Z. The minimum pressure required for unblocking depends on the height of the counter pressure at port A.

In the version with pre-release first 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)
type
manifold-mounting type (3)
max. operating pressure [bar]
500 (3)
max. flow rate [l/min]
pre-release
ports A, B
control port Z
Ø 3,5 mm (3)
Item no. CAD datatypemax. operating pressure [bar]max. flow rate [l/min]pre-release
Item no.
2951416
CAD data
type
manifold-mounting type
max. operating pressure [bar]
500
max. flow rate [l/min]
20
pre-release
without
Properties
Item no.
2951419
CAD data
type
manifold-mounting type
max. operating pressure [bar]
500
max. flow rate [l/min]
50
pre-release
without
Properties
Item no.
2951420
CAD data
type
manifold-mounting type
max. operating pressure [bar]
500
max. flow rate [l/min]
50
pre-release
with
Properties
Item no.
2951416
type
manifold-mounting type
max. operating pressure [bar]
500
max. flow rate [l/min]
20
pre-release
without
ports A, B
Ø 5 mm
control port Z
Ø 3,5 mm
Item no.
2951419
type
manifold-mounting type
max. operating pressure [bar]
500
max. flow rate [l/min]
50
pre-release
without
ports A, B
Ø 9 mm
control port Z
Ø 3,5 mm
Item no.
2951420
type
manifold-mounting type
max. operating pressure [bar]
500
max. flow rate [l/min]
50
pre-release
with
ports A, B
Ø 9 mm
control port Z
Ø 3,5 mm
Accessories (5)
Item no. CAD data Description
Item no.
3000022
CAD data
/
Description
O-ring 9.19 x 2.62 mm as per data sheet C2.9512
Item no.
3000942
CAD data
/
Description
O-ring 6.07 x 1.78 mm as per data sheet C2.9512
Item no.
3000968
CAD data
/
Description
O-ring 4.47 x 1.78 mm as per data sheet C2.9512
Item no.
3300229
CAD data
/
Description
Socket head cap screw M6 x 40 mm, 8.8, galvanized as per data sheet C2.9512
Item no.
3300580
CAD data
/
Description
Socket head cap screw M4 x 25 mm, 8.8, galvanized as per data sheet C2.9512
Application examples
Application example 1
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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.