11 - LE- Logic Elements
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Member of the Danfoss Group Logic Elements

g~rmm=m*-r<rmi Logic Elements Catalog LUfffOLf mm QUick Reference RESPO IUSIVEXESS IK MOTION Member of the Danfoa Group Logic Element, Poppet Type * Flow ratings are based on a pressure drop of 7 bar [100 psi] unless otherwise noted. They are for comparison purposes only.

Logic Elements Catalog Quick Reference Cavity SDC10-3S Logic Element, Normally Closed, Vent to Open Logic Element, Spool Type 50 l/min [13 US gal/min] 80 l/min [21.1 US gal/min] 150 l/min [40 US gal/min] 190 l/min [50 US gal/min] 320 l/min [85 US gal/min] SDC10-3S Logic Element, Normally Open, Pilot to Open Logic Element, Normally Closed, SDC10-3S Vent to Open 40 l/min [11 US gal/min] 60 l/min [15.8 US gal/min] 75 l/min [20 US gal/min] 114 l/min [30 US gal/min] 200 l/min [53 US gal/min] Logic Element, Spool Type Logic Element, Spool Type Logic Element, Normally Open, Vent to Close 40 l/min...

Logic Elements Catalog Quick Reference Pressure Compensator 40 l/min [11 US gal/min] 60 l/min [16 US gal/min] 130 l/min [34 US gal/min] 340 l/min [90 US gal/min] Pressure Compensator, Flow Control, Priority Pressure Compensator Pressure Compensator, Flow Control, Restrictive 40 l/min [11 US gal/ min] 90 l/min [24 US gal/ min] 130 l/min [34 US gal/ min] 284 l/min [75 US gal/ min] LE - Logic Elements Quick Reference Pressure Compensator 40 l/min [11 US gal/ min] 75 l/min [20 US gal/ min] 125 l/min [33 US gal/ min] 200 l/min [53 US gal/ min] Pressure Compensator, Load Sense, Priority, Static *...

Logic Elements Catalog Application Notes Logic Elements are multi-purpose devices. These valves, when used with other cartridge valves, can create a wide variety of circuits for control of pressure, flow, and direction. SPRING BIASED, Spring-biased, normally-closed differential sensing valves include: CP700-1, HLE10-CPC, HLEA10-CPC, CP701-1, and CP702-1. These valves are normally closed and will modulate NORMALLY CLOSED, DIFFERENTIAL SENSING based on the spring control pressure, inlet pressure at port 1, and pilot pressure at port 3. VALVES Spring biased, normally closed, differential...

fV) m =m1-r<Tm f Logic Elements Catalog *-***mmwmmM Application Notes Member of the Danfoss Group SPRING BIASED, NORMALLY CLOSED, DIFFERENTIAL SENSING Common applications displacement pump with single or multiple actuators. Bypass-type pressure-compensated flow control. Multiple actuator load sensing Single actuator load sensing Bypass flow control

Logic Elements Catalog Application Notes SPRING BIASED, Spring-biased, normally-closed, vent-to-open differential sensing valves include: CP700‑2, HLE10NORMALLY CLOSED, CVO, HLEA10-CVO, CP701-2, and CP702-2. These valves are normally closed and will modulate VENT TO OPEN based on the spring control pressure, inlet pressure at port 1, and pilot pressure at port 3. DIFFERENTIAL SENSING VALVES Spring biased, normally closed, vent to open differential sensing valve Common applications include: · Pump unloading. · Pilot-operated relief valve. · Sequence valve. · Selector circuit. LE - Logic...

Logic Elements Catalog Application Notes LOGIC ELEMENT POPPET-TYPE CIRCUIT EXAMPLES Poppet-type logic elements provide a multitude of hydraulic circuit options, as illustrated in the circuit examples below. These poppet designs provide low-leakage and are commonly piloted. to provide the needed functionality, as a pressure relief, check valve, directional valve, or flow control. PRESSURE RELIEF VALVE VLP /P2 LE - Logic Elements Application Notes

Logic Elements Catalog Application Notes Pilot-operated pressure reducing valve SPRING BIASED, NORMALLY OPEN, VENT TO CLOSE, DIFFERENTIAL SENSING VALVES Spring-biased, normally-open, ventto-close differential sensing valves include: CP700-3, CP701-3, and CP7023. These valves are normally open and will modulate based on spring control pressure, outlet pressure at port 1, and pilot pressure at port 3. One application for this valve is to create a high-flow pressure reducing valve when using a small relief valve (like CP208-1), or a proportional relief valve (like PRV08-DAC) as a pilot...

Logic Elements Catalog Application Notes PRESSURE COMPENSATING, DIFFERENTIAL SENSING VALVES Pressure compensators offer the circuit designer capability to add pressure compensation to any fixed or variable orifice. This ensures that flow, and resulting actuator speed, are maintained regardless of system and working pressures. Note that a pressure compensator is required when using Comatrol direct-acting proportional flow controls; see Proportional valve application notes for more information. Restrictive-type pressure compensator operation Priority-type Priority-type pressure compensators...

Aii inker of the Confess Group Logic Elements Catalog Application Notes

Logic Elements Catalog Poppet Type, Double-Blocking VLP 12/P2 OPERATION The VLP 12/P2 is a metric 12-size, normally-closed, vent-to-open, poppet-type, double-blocking, spring biased differential-sensing logic element. It will provide on/off flow control from 1 to 2 based on the spring control pressure, inlet pressure at port 1, and pilot pressure at port 3. APPLICATION The valve provides on/off, leakage-free control in both directions, suitable for use as a high flow relief valve when used with a relief valve to pilot. Common applications include: pump unloading, pilot-operated relief...

f~rmm=m-t-r<mM Lo9ic Elements Catalog ™™~M,J?# Poppet Type, Double-Blocking Member of the Banfats Croup VLP 12/P2 Cross-sectional view EXAMPLE CIRCUITS Housing and ports Housing P/N Other housings available

Logic Elements Catalog Poppet Type VLP 12/A5 OPERATION The VLP 12/A5 is a metric 12-size, normally-closed, pilot-to-close, poppet-type, spring biased differential-sensing logic element. It will provide on/off flow control from 1 to 2 based on the spring control pressure, inlet pressure at port 1, and pilot pressure at port 3. Rated pressure Rated flow at 7 bar [100 psi] Weight Cavity Bias spring SCHEMATIC 315 bar [4500 psi] 160 l/min [42 US gal/min] 0.30 kg [0.66 lb] NCS12/3 2 bar [29 psi] PERFORMANCE CURVE Pressure drop 26 cSt [125 SUS] hyd.oil @ 20° C[68°F] APPLICATION The valve provides...