Sequence valves
Description
The sequence valves are used in the clamping hydraulics as a directly controlled sequence valve. The compact design allows space-saving installation directly in the fixture. The sequence valve is a poppet valve which operates without leakage oil compared to a spool valve. The inlet and outlet pressures of the sequence valves are always identical. As a result this type of valve is ideal for use in sequence control systems. With single-acting cylinders, only one supply line from the pressure supplier (see data sheet 430-1) is required for operation. The design allows valve combinations that can be flanged together to form a block using a common P-connection and standard parts.
-
space-saving installation options
-
quick installation due to flange
-
ideal for pressure sequence control
-
operation with one supply line possible
-
valve combinations possible
-
Integrated check valve
Valve combinations:
Combinations of sequence valves are assembled from an inlet valve (P) and a maximum of four flange-mounted series valves. These are supplied with pressure oil through holes. Sealing between the valve housings is provided by O-rings. In order to ensure proper functioning with sequence controls, there should be a certain minimum pressure difference from valve to valve..
The drawing shows symbolically a clamping device as it can be used e.g. in manufacturing. When pressure is applied, the single-acting cylinder [1] clampes.
When the set opening pressure has been reached, the inlet valve [A1] opens and actuates the swing clamp [2].
The support element [3] clamps the support piston as soon as the opening pressure in the series valve [A2] is reached.
The series valve [A3] actuates the swing clamp [4] to complete the clamping process.
When the device is released, the pressure oil flows back to the pressure generator via the integrated check valves.
Data sheet 700-2
Designs:
threaded type, threaded port, manifold connection with O-ring and valve combinations
Operating pressure:
pmax. 500 bar
Volume flow:
max. 12 l/min
Adjusting range:
15-80 bar, 30-160 bar, 60-315 bar, 100-500 bar
Pressure change
per revolution:
9 (15-80 bar), 15 (30-160 bar), 32 (60-315 bar), 49 (100-500 bar)
Combinable:
inlet valve + max. 4 sequence valves
Oil supply:
threaded port G1/4 or manifold connection with O-ring
Pressure medium:
hydraulic oil according to DIN 51524 Tl.1 up to 3; ISO VG 10 up to 68 nach DIN 51519
Data sheet (PDF):
Directly controlled sequence valve designs:
Threaded type
G1/4 threaded port
Manifold connection with O-ring
Valve combinations:
Inlet valve with threaded connection
Series valves with threaded connection
Request a quote / 3D models
Further details are available on request:
