¿Qué es una válvula de control?

¿Qué es una válvula de control hidráulico?

Hydraulic control valves start and stop fluid flow into hydraulic cylinders or hydraulic motors. They operate either manually or electronically (solenoid-operated). The number of cylinders or motors that a control valve can operate depends on the number of spools. The flow rates represent the maximum allowed GPM (Gallons Per Minute) that a valve can handle. A common example of a hydraulic control valve is the loader valve on a tractor.

Hydraulic control valves start and stop fluid flow into hydraulic cylinders or hydraulic motors.

¿Por qué necesito una válvula de control?

• To add a new implement or function to the front or rear of machine
• Replace old or damaged valve

What Types of Hydraulic Control Valves Do You Carry?

Electric Directional Control Valve

These Hydraulic Control Valves operate any hydraulic cylinders (“A” Spool) or hydraulic motors (“D” spool) using electronic switch boxes. These valves have Max. allowed flows of either 15 GPM o 25 GPM. Además, tienen (1) orificio de entrada y (1) orificio del depósito de alta presión.

Solenoid Monoblock Control Valve

These Hydraulic Control Valves operate any hydraulic cylinders (“A” Spool) or hydraulic motors (“D” spool) using electronic switch boxes. These valves have Max. allowed flows of either 13 GPM, 21 GPM o 27 GPM. In addition, they have (1) inlet port and (1) low-pressure tank port, (1) optional power-beyond port. These valves convert for use on closed-center hydraulic systems (adapter required).

Manual Monoblock Control Valve

These Hydraulic Control Valves operate any hydraulic cylinders (“A” Spool) or hydraulic motors (“D” spool) using levers or cables. These valves have Max. allowed flows of either 11 GPM, 21 GPM o 31 GPM. In addition, they have (1) inlet port and (1) low-pressure tank port, (1) optional power-beyond port. These valves convert for use on closed-center hydraulic systems (adapter required).

How To Identify A Power Beyond Port on My Loader Control Valve

Typically, there are seven hoses or steel tubes connected to the loader valve. If only six hoses or tubes, there is no Power Beyond Port on your loader valve. The 1st four connect to your loader for the up, down, dump, and curl functions. The fifth line comes from your pump to feed your loader valve. The sixth line goes directly to your reservoir. When the pressure relief valve opens, fluid dumps directly to the reservoir. The seventh line connects to the “Power Beyond Port” on your loader valve to power valves beyond the loader valve.

On some loader valves, a “PB” stamped marking exists next to the power beyond port. Some loaders indicate their power beyond port with green tape or a green mark on the hose or valve. Some loader valves have a power beyond sleeve inserted in the power beyond port. This sleeve looks like a nut; however, it is 3 to 4 times longer than a normal sized nut. On some loader valves there are no clues to help determine which connection is the power beyond port. Your owner’s manual may not even indicate the location.

¿Qué es el enchufe de conversión Power Beyond y lo necesito?

The power beyond conversion plug installs into the N port of SÓLO MONOBLOQUES (NO EN NUESTRO VÁLVULAS TIPO D03) to add another valve downstream. For example, if you were to attach two Monoblock valves in-line together, you would need the power beyond conversion plug. If you are connecting this valve to your power beyond on your loader valve, you NO necesitan la potencia más allá del enchufe de conversión.

The control valve comes with a G thread (British Pipe Thread Parallel) style to fit the N port of the Monoblock valve. Please refer to the product listing to ensure you are purchasing the correct power beyond adapter, as we also carry the adapter in SAE thread. We carry the P40G-PB, P80G-PBy P120-PB enchufes adaptadores.

También puede consultar nuestra GUÍA DE IDENTIFICACIÓN DE ACOPLADORES, ROSCAS, RACORES Y ADAPTADORES for a complete breakdown.

The power beyond conversion plug installs into the N port of Monoblocks to add another valve downstream.

¿Qué es el tapón de conversión de centro cerrado y lo necesito?

The closed center conversion plug installs into the N port of SÓLO MONOBLOQUES (NO EN NUESTRO VÁLVULAS TIPO D03) to convert the open-center valve into a closed-center one. If your system is a closed center system, you need this plug. If you are unsure if your tractor is open-center or closed-center, please refer to your owner’s manual or Google machine specs.

The control valve comes with a G thread (British Pipe Thread Parallel) style to fit the N port of the Monoblock valve. Please refer to the product listing to ensure you are purchasing the correct power beyond adapter, as we also carry the adapter with SAE thread. We carry the P40G-CC, P80G-CC, P120-CC enchufes adaptadores.

También puede consultar nuestra GUÍA DE IDENTIFICACIÓN DE ACOPLADORES, ROSCAS, RACORES Y ADAPTADORES para un desglose completo del tallaje.

The closed center conversion plug installs into the N port of Monoblocks to convert the open-center valve into a closed-center one.

¿Cómo identifico cada uno de los puertos de la válvula?

Each port features a lettered marking to indicate what it is.

• “P” Port: Pressure or inlet port. This port connects to your power beyond port on your loader valve, your power beyond hose, or directly to your pump.
• Puerto "T": Puerto de retorno o del tanque. Este puerto se conecta a su tanque.
• Puertos "A" y "B": Estos son sus puertos de trabajo que se conectan a sus cilindros o motor hidráulico.
• Puerto "N": Se utiliza para el tapón central cerrado o para acoplar varias válvulas en fila (se requiere alimentación más allá del tapón).

What Detent Options Are Available for Monoblock Valves?

Retenes install into a valve. They allow you to either lock a handle into a “work” position (allowing fluid to flow to a work port hands free), or cause a handle to spring back into the neutral position when released.

We offer P40 valve detents that lock in all positions, lock in rear position, lock in forward position and a float detent. The float detent must be purchased with a float spool.

También ofrecemos retenes de válvula P80 que se bloquean en todas las posiciones, se bloquean en posición trasera y se bloquean en posición delantera.

What Spool Options Are Available for Monoblock Valves?

Carretes son componentes cilíndricos mecanizados para deslizarse en un orificio de ajuste estrecho de una válvula de control direccional. Disponemos de 3 tipos diferentes que funcionan de forma muy distinta:

Un carrete (controla cilindros de doble efecto).

• All spools are double acting with spring return to neutral position. A spool controls double acting cylinders
• Los puertos A y B están cerrados al depósito en posición neutra

D Carrete (Controla Motores Hidráulicos)

• All spools are double acting with spring return to neutral position. D spool controls non-load holding applications such as motors and horizontal cylinders.

Carretes K (carrete flotante)

• A and B ports are closed to tank in neutral position with spring return to neutral position for operation of A and B work ports. Float spool allows fluid within a cylinder or motor to flow freely. For example: If you needed a mower to follow the contour of the land.
• Must be purchased with float detent

Carretes are cylindrical components machined to slide in a close-fitting bore of a directional control valve.

¿Ofrecen un esquema eléctrico del solenoide para válvulas monobloque?

Below is a drawing of the DIN Connector wiring. The monoblock solenoid operated valves corresponds directly to this.