Quick Reference Cartridge Valves Technical Information Proportional Valves Quick Reference Flow* 22 l/min [6 US gal/min] Description Proportional Directional Valve Flow* 30.3 l/min [8 US gal/min] 60 l/min [16 US gal/min] Proportional Directional Flow* 22 l/min [6 US gal/min] Description Proportional Directional Valve Flow* 30.3 l/min [8 US gal/min] 60 l/min [16 US gal/min] Flow* 12 l/min [3 US gal/min] Description Proportional Directional Valve 40 l/min [11 US gal/min] 80 l/min [21 US gal/min] 100 l/min [26 US gal/min] Proportional Flow Controls 2 Description Proportional Flow Control Valve, Non-Compensated, Normally Open * Flow ratings are based on a pressure drop of 7 bar [100 psi] unless otherwise noted. They are for comparison purposes only. 520L0588 • Rev DB • November 2010 Quick reference Description Proportional Directional Valve Proportional valves Proportional Directional

Quick Reference Cartridge Valves Technical Information Proportional Valves Quick Reference Proportional Flow Controls Quick reference Proportional valves Description Proportional Flow Control Valve, Non-Compensated, Normally Closed, Poppet Type Flow* 55 l/min [14 US gal/min] 70 l/min [18 US gal/min] 90 l/min [24 US gal/min] Flow* 12 l/min [3 US gal/min] 45 l/min [12 US gal/min] 100 l/min [26 US gal/min] Flow* 45 l/min [12 US gal/min] 70 l/min [18 US gal/min] 80 l/min [21 US gal/min] Flow* 30 l/min [8 US gal/min] 65 l/min [17 US gal/min] 90 l/min [24 US gal/min] Flow* 30 l/min [8 US gal/min] 60...

Quick Reference Cartridge Valves Technical Information Proportional Valves Quick Reference Cavity SDC10-3 Description Proportional Flow Control Valve, Pressure Compensated, Priority Type, Normally Closed Flow* 40 l/min [11 US gal/min] 65 l/min [17 US gal/min] 85 l/min [22 US gal/min] Flow* 35 l/min [9 US gal/min] 70 l/min [18 US gal/min] 90 l/min [24 US gal/min] Proportional Flow Controls Description Proportional Flow Control Valve, Pressure Compensated, Priority Type, Normally Open Proportional Pressure Reducing Description Proportional Pressure Reducing Valve, Direct Acting, Normally Open Flow*...

Quick Reference Cartridge Valves Technical Information Proportional Valves Quick Reference Proportional Pressure Reducing Quick reference Proportional valves Description Proportional Pressure Reducing/Relieving Valve, Piloted, Normally Closed Flow* 18 l/min [5 US gal/min] Description Proportional Pressure Reducing/Relieving Valve, Piloted, Normally Open Flow* 25 l/min [7 US gal/min] Description Proportional Pressure Reducing Valve, Direct Acting, Normally Open Flow* 5 l/min [1 US gal/min] 8 l/min [2 US gal/min] Description Proportional Relief Valve, Pilot Operated, Normally Closed Flow* 76 l/min...

Quick Reference Proportional, or electro-proportional valves, provide infinitely variable control of flow, pressure, or direction, in response to a electric input signal. There are four basic types of Comatrol proportional valves: • • • • Flow control valves. Pressure reducing/relieving valves. Pressure relief valves. Directional control valves Proportional valves Comatrol solenoid valves are PLUS+1™ compliant. PLUS+1 compliance means our valves are directly compatible with the PLUS+1 machine control architecture. Adding solenoid valves to your application using PLUS+1 GUIDE software is as easy...

Quick Reference Cartridge Valves Technical Information Proportional Valves Application Notes Application notes Proportional valves PROPORTIONAL FLOW CONTROL VALVES Comatrol proportional flow control valves are 2-way, spool-type valves that are directly operated with a proportional electromagnetic solenoid actuator. By controlling electric current, these valves create an infinitely variable orifice. Proportional flow control valve These valves are designed to be used with a logic element to provide pressure compensation. Pressure compensation provides two advantages: 1. A constant pressure differential...

Quick Reference Proportional pressure reducing/relieving valves are 3-way valves that provide a controlled output pressure as a function of electric current, regardless of system pressure or flow (within the valve’s limits). Direct acting designs are available for low-flow applications. Direct-acting, proportional, pressure reducing valve Proportional pressure reducing valves have a variety of applications including: • Single acting cylinder position control, e.g. combine header height control. Clutch or brake pressure control. Pilot signal to a directional control valve. By slowly ramping the...

Quick Reference Cartridge Valves Technical Information Proportional Valves Application Notes Proportional pressure relief valves are 2way valves that provide a relief pressure as a function of electric current. Both normally-open (increasing pressure with increasing current), and normally-closed (decreasing pressure with increasing current) are available. Normally closed versus normally open proportional relief valves Normally-Open Normally-Closed Application notes Proportional valves PROPORTIONAL PRESSURE RELIEF VALVES The normally-open proportional relief valve is a direct-acting design for...

Quick Reference Normally-closed proportional relief valves are available in direct-acting and pilotoperated designs. A direct-acting, normally-closed proportional relief valve is used for low flow applications. For high flow applications, internally pilot-operated cartridges are available. Internally pilot-operated cartridge for high flow applications Common applications for normally-closed proportional relief valves are: • Cooling fan speed control Cooling fan speed control in hydrostatic fan drive systems. (For more information refer to BLN-10080 Fan Drives Systems and Components Technical...

Quick Reference Cartridge Valves Technical Information Proportional Valves Application Notes TERMS AND DEFINITIONS Application notes Proportional valves Analog Proportional Valves are controlled by electric current, which may be direct current (DC) or a PWM signal. Compensator is a hydraulic component that maintains a constant pressure drop across a fixed or variable orifice. Current is the flow of electricity through a conductor or coil, normally measured in amps (A). Steady-state current flow in an electrical circuit can be calculated by Ohm’s Law, as well as voltage and resistance. Ohm’s Law...