Industrial Hydraulics
Industrial Hydraulics
Industrial Hydraulics
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Bosch Rexroth AG <strong>Industrial</strong> <strong>Hydraulics</strong> 87 Proportional, high-response and servo-valves<br />
Proportional cartridge valves, pilot operated, with electrical position<br />
feedback<br />
< Sizes 32 to 160<br />
< Installation dimensions to DIN ISO 7368 (type 2WRCE)<br />
< Suitable for closed-loop controlling of position, velocity and pressure<br />
< Controlling via servo-valve<br />
< Very short switching times, low hysteresis<br />
< Position sensing of the control spool via an inductive position transducer<br />
< Integral control electronics for type .WRCE (sizes 32 to 100)<br />
Types 2WRC(E)…/S and 3WRC(E)…/S<br />
Size 32 40 50 63<br />
Operating pressure 2-way pmax bar 420 420 420 420<br />
3-way pmax bar 315 315 315 315<br />
Nominal flow<br />
(∆p = 5 bar)<br />
2-way<br />
3-way<br />
qV nom<br />
qV nom<br />
L/min<br />
L/min<br />
650<br />
290<br />
1000<br />
460<br />
1600<br />
720<br />
2800<br />
1250<br />
Maximum hysteresis % < 0.2 < 0.2 < 0.2 < 0.2<br />
Repeatability % 0.2 0.2 0.2 0.2<br />
Control electronics Type .WRC VT-SR31 VT-SR32 VT-SR33 VT-SR34<br />
Size 80 100 125 160<br />
Operating pressure 2-way pmax bar 420 420 420 420<br />
3-way pmax bar 315 315 315 315<br />
Nominal flow<br />
(∆p = 5 bar)<br />
2-way<br />
3-way<br />
qV nom<br />
qV nom<br />
L/min<br />
L/min<br />
4350<br />
2000<br />
7200<br />
3000<br />
11500<br />
4500<br />
18000<br />
7500<br />
Maximum hysteresis % < 0.2 < 0.2 < 0.2 < 0.2<br />
Repeatability % 0.2 0.2 0.2 0.2<br />
Control electronics Type .WRC VT-SR35 VT-SR36 VT-SR37 VT-SR38<br />
Detailed information:<br />
– Sizes 32 to 50, series 2X:<br />
RE 29136<br />
– Sizes 63 to 160, series 1X:<br />
RE 29135
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