Directional Control Valves

DC Series
4-Way Directional Control with or without Flow Control
0-45 GPM (0-170 lpm)

Features: Pilot operated relief valve is standard on every DCF valve. Full range pressure compensated by-pass type flow control valve (DCF valve). DCF reduces the number of fittings, plumbing and potential leaks in hydraulic circuits. Fine positive metering in either direction with the manual handle (DCF valve). Precision ground chrome plated spool that assures long life (DC and DCF valves). Optional vent port to unload relief (DCF Only). Optional pilot operated actuator for remote operation (DC and DCF valves). Optional O-ring ports to eliminate leakage (DC and DCF valves). Specifications: Rated for 0-45 gpm (0-170 lpm). Rated for 3,000 psi (207 bar). Std. port sizes (consult factory for others). 3/4″ NPT all ports. #16 SAE (1-5/16-12) all ports. Weighs 16 lbs. (7.3 kg). 20-Micron filtration recommended.

General Information:
The Brand, DCF directional flow control valve combines the features of a four-way directional control valve, a full range pressure compensated by-pass type flow control valve, and a pilot operated pressure relief valve, all in one compact package. This valve reduces the number of fittings, plumbing and potential leakage points in hydraulic circuits. The manual handle provides fine metering to either port. Flow to the work port is directly proportional to the movement of the lever. Flow out of each work port is constant regardless of load changes, this allows the customer to maintain smooth and constant movement of a cylinder or motor. Every DCF comes standard with a pilot operated relief. The tank port must be plumbed directly back to tank.

The Brand, DC directional control valve does not have the flow control feature of the DCF. The DC can be used in series but the spool is difficult to shift when there is tank pressure. The DC offers an optional high lift ball spring relief to take the place of the standard pilot operated relief on the DCF. The manual handle provides metering to either port.

Spool Type – The spool types we offer are tandem center 4-way (T), open center 4-way (O), closed center 4-way(C), fine metering 4-way (M), tandem metering 4-way (TM), and tandem center 3-way (T3).

Actuators – Lever handle (L) pressurizes the B port when the handle is pushed towards the valve body. Pilot operated (P) is used when it is necessary to remotely operate the valve. Rotary handle (H) is used to rotate spool in or out of valve body. No actuator (N) L type spool.

Spool Attachments – Three-position detent (D) holds the spool in neutral and both active positions. Friction detent (F1) applies friction to the spool so that the spool does not move when the handle is released from either side of neutral, a detent groove clearly indicates neutral position. Spring center (S) returns the handle to neutral when the handle is released. Two-position detent (2D) P to B only. Twoposition detent (D2) P to A only. Rotary friction detent (E) applies friction to the spool as it is rotated so that the spool does not rotate when the handle is released either side of neutral, a detent groove clearly indicates neutral position. Adjustable spool stop handle (AH) allows the customer to stop the spool at any position in one direction only. High lift ball spring relief (B) provides relief for DC only. Vent port (V) allows relief to unload (DCF only). Top port (TP) allows the customer to plumb the inlet, outlet on the same surface as the work ports (DC only).

LV Series

Features: O-Ring ports to eliminate leakage. Fourth position regen allows cylinder to rapidly extend. Power beyond capability to fit your multi valve circuits. Precision ground IOSSO plated spools that assure long life. Individual drop load checks prevent the load from dropping when the spool is shifted. Fourth position float allows spool movement to a fourth position and makes all ports common to each other (last spool only). Specifications: 10 gpm (38 lpm) Nominal Capacity Rated up to 4,000 psi (275 bar) Port Sizes Inlet/Outlet #8 SAE (3/4-16) Work Ports #8 SAE (3/4-16) 25 Micron Filtration Recommended Weight – LV22 = 10.9 lbs. (4.9 kg)

General Information:
The Brand, loader directional control valve is available in a two (LV22) spool configurations. The LV offers parallel, tandem center 4-way float, open center 4-way (motor spool), regen and tandem 3-way spools. The valve is also field convertible to closed center or power beyond with appropriate cartridge.

Series 20

Features: O-Ring ports to eliminate leakage. Metering spools provide smooth control of load. Power beyond capability to fit your multi-valve circuits. Precision ground IOSSO plated spool that assure long life. Diamond honed spool bores provide consistent spool fit with low leakage. Enclosed handles increase handle rigidity and eliminate exposure to the elements. Individual load check built into each section to prevent the load from dropping when the spool is shifted. All sections and assemblies are 100% tested including both internal and external leakage and flow tests. Specifications: 6 gpm Nominal Capacity Pressure Ratings: 4,500 psi (301 bar), Parallel 3,000 psi (207 bar), Series 400 psi (27 bar) max tank pressure. 6 Sections max (consult factory for more) 10-Micron Filtration Recommended Assembly Torque = 85 inch-lbs Weights: Inlet = 2.6 lbs. (1.2 kg) Work = 3.1 lbs. (1.4 kg) Outlet = 2.2 lbs. (1.0 kg) Port Size: #6 SAE (9/16-18), All Ports

General Information:
The Brand, Series 20 Sectional Directional Control Valves are assembled to meet our customer’s requirements for up to six individual applications per assembly (consult factory for more sections). Brand Hydraulics does not charge anything extra for this process and assembly is priced solely on the overall sum of the prices of its components.

When assembled in their normal manner the series 20 spool sections are in parallel. When the spools are in neutral position, the flow passes by each spool and then onto the tank (outlet) port. If two or more spools are shifted simultaneously their work ports are in parallel. The oil flow will take the path of least resistance allowing lighter loads to move first.