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INT'L Shortcut Cartridge Catalogue - Bibus SK, s.r.o.

INT'L Shortcut Cartridge Catalogue - Bibus SK, s.r.o.

INT'L Shortcut Cartridge Catalogue - Bibus SK, s.r.o.

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Reducing and Reducing/Relieving Valves, Electro-Proportional<br />

DIRECT ACTING, LOW LEAKAGE<br />

b<br />

3<br />

Tank<br />

2<br />

Inlet<br />

d<br />

a<br />

1<br />

Reduced Pressure<br />

Performance Curves<br />

c<br />

Locating<br />

Shoulder<br />

Capacity<br />

Typical<br />

<strong>Cartridge</strong><br />

Model Code<br />

0<br />

-30 -20 -10 0 10 20<br />

Flow = L/min.<br />

30<br />

0 20 40 60 80<br />

Command (volts)<br />

100<br />

■ Maximum operating pressure = 350 bar.<br />

■ Maximum valve leakage at 24 cSt = 41 cc/min. Leakage specified is out of port 3 with a supply pressure of 140 bar and the<br />

valve set at mid-range. This leakage is directly proportional to pressure differential and inversely proportional to viscosity<br />

expressed in centistokes.<br />

■ The transition from reducing to relieving is closed. The result is very low leakage. However, there is a transitional step<br />

increase in pressure between reducing and relieving modes. The step equals about 5% of the high end of the adjustment range,<br />

independent of the valve setting.<br />

■ Hysteresis with dither =

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