Danfoss HLE10-OPO Technical Information
Logic Elements Technical Information
Spool Type
HLE10-OPO
OPERATION
The HLE10-OPO is a 10-size, high pressure, normally open, pilot-to-open, spring-biased differential-sensing logic element. It will modulate flow from 2 to 1 based on the spring control pressure, outlet pressure at port 1, and pilot pressure at port 3. The HLE10-OPO technically replaces the CP700-4L, but cavities are not interchangeable.
APPLICATION
Common applications include: as a pre-compensator for proportional directional control or flow controls, as well as a pressure control valve. A common application for this valve is as a pressure compensator when applied with a fixed, or adjustable orifice to create a pressure-compensated flow control. This ensures that flow rate,
and resulting actuator speed is maintained regardless of pressure drop across the control orifice. Effective use of logic elements is a key to designing cost-effective circuits, and is limited only by the imagination of the designer.
SPECIFICATION |
SCHEMATIC |
|
Rated Pressure* |
350 bar [5075 psi] |
|
Rated Flow at 7 bar |
60 l/min |
|
[100 psi] |
[15.8 US gal/min] |
|
Weight |
0.14 kg [0.31 lbs] |
|
Cavity |
SDC10-3S |
|
* Rated Pressure based on NFPA fatigue test standards (at 1 Million Cycles).
Theoretical performance
PERFORMANCE CURVE
BC332375783111en-000101 • February 2020 |
LE - 45 |
Logic Elements Technical Information
Spool Type
HLE10-OPO
DIMENSION |
Cross-sectional view |
mm [in]
7/8-14 UNF
3
1
68-75 Nm
[50-55 lbf*ft]
2
46.8 |
19.1 |
[1.84] |
[0.75] |
EXAMPLE CIRCUITS
Compensated Bi-directional Flow Control |
Proportional Pressure Reducing Valve |
ORDERING
INFORMATION
*** Aluminum bodies are for use in lower pressure applications only [less than 210 bar (3000 psi)].
BC332375783111en-000101 • February 2020 |
LE - 46 |
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