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WEH Series Directional Hydraulic Valves Of Pilot Operated

WEH Series Directional Hydraulic Valves Of Pilot Operated

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Fabricante proveedor exportador de cilindros hidráulicos.

WEH Series Directional Hydraulic Valves Of Pilot Operated

The WEH series directional hydraulic valves of pilot operated are advanced components that provide precise and efficient control over hydraulic systems. Designed to meet the demands of various industries, these valves offer exceptional performance, reliability, and versatility.

The WEH series directional hydraulic valves of pilot operated are reliable, high-performance components that empower operators with precise control and efficient fluid management in hydraulic systems. With their pilot-operated design, exceptional directional control, a wide range of configurations, and high flow capacity, these valves offer the reliability and versatility required in various industries. Following the recommended usage methods and adhering to regular maintenance practices, the WEH series valves will continue delivering exceptional performance. Upgrade your hydraulic system with the WEH series directional hydraulic valves operated and experience the benefits of precision, control, and reliability.

WEH Series Directional Hydraulic Valves Of Pilot Operated Key Characteristics:

  • Diseño operado por piloto:
    • The WEH series valves utilize a pilot-operated design, which enhances their responsiveness and control accuracy.
    • This design enables the valves to handle high-pressure applications, ensuring optimal performance easily.
  • Control direccional:
    • These hydraulic valves excel in providing precise directional control of hydraulic fluid.
    • Los operadores pueden gestionar fácilmente el flujo de fluido y dirigirlo a diferentes actuadores o componentes dentro del sistema hidráulico.
  • Wide Range of Configurations:
    • The WEH series valves are available in various configurations, including various sizes, flow rates, and pressure ratings.
    • This versatility allows them to be tailored to specific application requirements and system specifications.
  • Alta capacidad de flujo:
    • These valves are designed to handle high flow rates, making them suitable for applications that demand substantial fluid flow.
    • Sus pasajes internos optimizados y su construcción robusta garantizan una caída de presión mínima y una gestión eficiente de los fluidos.

WEH Series Directional Hydraulic Valves Of Pilot Operated Parameter:

NG10

Presupuesto WEH10  type
Max. operating  pressure：P、A、B 350
Puerto T With external pilot oil drain  bar 315
With internal pilot oil drain   bar DC  210 AC  160
Puerto Y With external pilot oil drain  bar DC  210 AC  160
Min. control pressure With external pilot oil supply  ( not apply to  C、Z、
F、G、H、P、T、V)   bar		 3-position valve  10
Spring-return 2-position valve            10
Hydraulic-return 2-position valve            7
With internal pilot oil supply  ( apply to  C、Z、F、
G、H、P、T、V)  bar		 6.5
Max. control pressure  bar 250
Líquido Mineral oil,Phosphate ester
Fluid temperature range   ℃ -30  to  +80 ( NBR seals
-20  to  +80 ( FKM seals )
Viscosity range mm2/s 2,8 a 500
Switching pilot oil volume             cm3 3-position valve  2.04
2-position valve  4.08
Switching times (= Valve switching time from the neutral position to the switched position)（AC and DC ）
Control pressure  bar 70 140 210 250
AC corriente continua AC corriente continua AC corriente continua AC corriente continua
3-position valve   ms 30 65 25 60 20 55 15 50
2-position valve    ms 35 80 30 75 25 70 20 65
Switching times (= Valve switching time from the switched position to the neutral position)
3-position valve    ms 30
2-position valve    ms 35 40 30 35 25 30 20 25
Posición de instalación HC、HD、HK、HZ、HY Type hydraulic-return valves are installed horizontally, the rest can be installed arbitrarily
Flow of shortest switching time  L/min about 35
Peso Single solenoid valve kg 6.7
Double solenoid valve kg 7.1
Switching time regulator kg 1.0
Reducing valve kg 0.5

NG16

Presupuesto WEH16…  type
Max. operating  pressure：P、A、B 350
Puerto T With external pilot oil drain  bar 250
With internal pilot oil drain   bar DC  210 AC  160
Puerto Y With external pilot oil drain  bar DC  210 AC  160
Min. control pressure With external pilot oil supply  ( not apply to  C、Z、
F、G、H、P、T、V)bar		 3-position valve  14
Spring-return 2-position valve            14
Hydraulic-return 2-position valve       14
With internal pilot oil supply ( apply to  C、Z、F、 G、
H、P、T、V) bar		 When applying prepressing or the flow is large correspondingly ,enginery of spool valve is 4.5 as C,Z,F,G,H,P,T and V
Max. control pressure  bar 250
Líquido Mineral oil,Phosphate ester
Fluid temperature range   ℃ -30  to  +80 ( NBR seals
-20  to  +80 ( FKM seals )
Viscosity range mm2/s 2,8 a 500
Switching pilot oil volume
– Spring-centering 3-position valve   cm3 5.72
– 2-position valve      cm3 11.45
* * Switching times (= Valve switching time from the neutral position to the switched position)(AC and DC)
Control pressure  bar 50 150 250
AC corriente continua AC corriente continua AC corriente continua AC corriente continua AC corriente continua AC corriente continua
– Spring-centering 3-position valve  ms 35 65 30 60 30 58
– 2-position valve     ms 45 65 35 55 30 50
**Switching times (= Valve switching time from the neutral position to the switched position)
– Spring-centering 3-position valve    ms 30
– 2-position valve    ms 45 45 35 35 30 30
Posición de instalación C,D,K,Z,Y Type hydraulic-return valves are installed horizontally, the rest can be installed arbitrarily
Flow of shortest switching time  L/min about 35
Weight  kg about 9.5

NG25

Presupuesto WEH25…  type
Max. operating  pressure：P、A、B 350
Puerto T With external pilot oil drain  bar 250
With internal pilot oil drain   bar DC  210 AC  160
Puerto Y With external pilot oil drain  bar DC  210 AC  160
Min. control pressure With external pilot oil supply  ( not apply to  C、Z、F、
G、H、P、T、V)   bar		 Spring-centering 3-position valve           13
Spring-return 2-position valve                13
Hydraulic-return 2-position valve            8
With internal pilot oil supply  ( apply to  C、Z、F、
G、H、P、T、V)  bar		 When applying prepressing or the flow is large correspondingly ,enginery of spool valve is 4.5 as C,Z,F,G,H,P,T and V
Max. control pressure  bar 250
Líquido Mineral oil,Phosphate ester
Fluid temperature range   ℃ -30  to  +80 ( NBR seals
-20  to  +80 ( FKM seals )
Switching pilot oil volume
– Spring-centering 3-position valve    cm3 14.2
– 2-position valve      cm3 28.4
* Switching times (= Valve switching time from the neutral position to the switched position)(AC and DC)
Control pressure  bar 50 140 210 250
AC corriente continua AC corriente continua AC corriente continua AC corriente continua
– Spring-centering 3-position valve  ms 50 85 40 75 35 70 30 65
– 2-position valve     ms 120 160 100 130 85 120 70 105
*Switching times (= Valve switching time from the neutral position to the switched position)
– Spring-centering 3-position valve    ms 40
– 2-position valve    ms 120 125 95 100 85 90 75 80
Posición de instalación C,D,K,Z,Y Type hydraulic-return valves are installed horizontally, the rest can be installed arbitrarily
Flow of shortest switching time  L/min about 35
Weight   kg about 18

NG32

Presupuesto WEH32…  type
Max. operating  pressure：P、A、B 350
Puerto T With external pilot oil drain  bar 250
With internal pilot oil drain   bar DC  210 AC  160
Puerto Y With external pilot oil drain  bar DC  210 AC  160
Min. control pressure With external pilot oil supply

With internal pilot oil supply

    3-position valve    8.5
Spring-return 2-position valve            10
Hydraulic-return 2-position valve       15
With internal pilot oil supply  ( apply to  C、Z、F、
G、H、P、T、V)  bar		 When applying prepressing or the flow is large correspondingly ,enginery of spool valve is 4.5 as C,Z,F,G,H,P,T and V
Max. control pressure  bar 250
Líquido Mineral oil,Phosphate ester
Fluid temperature range   ℃ -30  to  +80 ( NBR seals
-20  to  +80 ( FKM seals )
Viscosity range   mm2/s 2,8 a 500
Switching pilot oil volume
– Spring-centering 3-position valve    cm3 29.4
– 2-position valve      cm3 58.8
* Switching times (= Valve switching time from the neutral position to the switched position)(AC and DC)
Control pressure  bar 50 150 250
AC corriente continua AC corriente continua AC corriente continua
– Spring-centering 3-position valve  ms 65 80 50 90 35 105
– 2-position valve     ms 100 130 75 100 60 115
*Switching times (= Valve switching time from the neutral position to the switched position)
– Spring-centering 3-position valve    ms ( DC ：50，AC ：60)
– 2-position valve    ms 115 90 35 70 65 65
Posición de instalación C、D、K、Z、YType hydraulic-return valves are installed horizontally, the rest can be installed arbitrarily
Flow of shortest switching time  L/min about 50
Weight  kg about 36

WEH Series Directional Hydraulic Valves Of Pilot Operated Advantages:

• Electrohydraulic directioanl valve directioanls the oil path by controlling the main spool
• WEH electrohydraulic control
• Installation face follow DIN 24340 A, ISO 4401 and CETOP-RP 121H Sub-plate mounting connection
• Wet DC or AC solenoid (optional)
• With manual emergency control
• Electropneumatic connection as single or center connection
• Spring or hydraulic alignment or bias

Usage Method Of WEH Series Directional Hydraulic Valves Of Pilot Operated:

  • Integración de sistemas:
    • Identify the optimal location for installing the WEH series valves within the hydraulic system, considering the desired flow path and control requirements.
    • Asegúrese de la compatibilidad con las especificaciones de presión y flujo del sistema.
    • Monte las válvulas de forma segura utilizando soportes o accesorios de montaje adecuados.
  • Pilot Control Setup:
    • Connect the pilot control lines to the designated ports on the valves, following the manufacturer’s instructions.
    • Ensure proper sizing and routing of the pilot lines to maintain optimal control signal integrity.
  • Conexiones de fluidos:
    • Seleccione accesorios y mangueras hidráulicas compatibles para conexiones seguras y sin fugas.
    • Siga las instrucciones del fabricante para conocer los valores de torsión adecuados durante el proceso de instalación.
    • Utilice selladores de roscas o cintas adecuados para garantizar sellados confiables.
  • Control y ajuste:
    • To operate the WEH series valves, utilize the recommended control method, such as manual levers or electrical controls.
    • Adjust the valves’ settings to achieve the desired flow direction and rates, ensuring optimal performance.

How Do Hydraulic Valve Lifters Work?

Hydraulic valve lifters, also known as hydraulic tappets or hydraulic lash adjusters, play a vital role in the proper operation of an internal combustion engine. They are responsible for maintaining the proper clearance, or “lash,” between the engine’s camshaft and valve train components. Here’s an overview of how hydraulic valve lifters work:

  1. Estructura:
    • Hydraulic valve lifters are small cylindrical devices typically made of metal.
    • They are between the camshaft and the engine’s valve train components, such as the pushrods, rocker arms, or overhead cam followers.
  2. Hydraulic Operation:
    • Inside the hydraulic valve lifter, a small piston mechanism operates based on hydraulic pressure.
    • The lifter is filled with hydraulic fluid, typically engine oil, which acts as a working fluid.
  3. Camshaft Interaction:
    • The camshaft has lobes or eccentric shapes that push against the lifters as it rotates.
    • As the camshaft lobe comes into contact with the lifter, it applies a force that compresses its internal piston.
  4. Lash Adjustment:
    • When the lifter’s piston is compressed, it pushes the hydraulic fluid out of the lifter through a small orifice.
    • This hydraulic fluid is expelled into the engine’s oil galleries or passages.
  5. Lash Compensation:
    • The expelled hydraulic fluid creates a hydraulic cushion or “spring” effect, compensating for any clearance or lash between the camshaft lobe and the valve train components.
    • This compensation eliminates excessive clearance and ensures that the valve train remains in constant contact with the camshaft lobes.
  6. Maintenance of Lash:
    • If there is excessive clearance or lash in the valve train due to wear or other factors, the lifter’s internal piston will extend further to maintain the necessary hydraulic pressure.
    • This extended position allows the lifter to take up the additional clearance, thus maintaining proper valve lash.
  7. Oil Pressure and Lubrication:
    • The hydraulic valve lifters rely on the engine’s oil pressure for proper operation.
    • The oil pump circulates oil through the engine, and the lifters receive a continuous oil supply to maintain hydraulic pressure and lubrication.

Capacidad de la fábrica:

(1) Montaje

Contamos con una plataforma de ensamblaje independiente de primera clase para investigación y desarrollo. El taller de producción de cilindros hidráulicos cuenta con cuatro líneas de ensamblaje de cilindros de elevación semiautomáticos y una línea de ensamblaje de cilindros de inclinación automáticos, con una capacidad de producción anual diseñada de 1 millón de piezas. El taller de cilindros especiales está equipado con un sistema de ensamblaje de limpieza semiautomático de diversas especificaciones, con una capacidad de producción anual diseñada de 200,000 unidades, y está equipado con reconocidos equipos de mecanizado CNC, un centro de mecanizado, equipos especiales de procesamiento de cilindros de alta precisión, una máquina de soldadura robotizada, una máquina de limpieza automática, una máquina de ensamblaje de cilindros automáticos y una línea de producción de pintura automática. Contamos con más de 300 equipos críticos. La asignación óptima y el uso eficiente de los recursos de equipo garantizan la precisión y la alta calidad de los productos.

(2) Mecanizado

El taller de mecanizado está equipado con un centro de torneado de carril inclinado personalizado, un centro de mecanizado, una máquina de bruñido de alta velocidad, un robot de soldadura y otros equipos relacionados, que pueden procesar tubos cilíndricos con un diámetro interior máximo de 400 mm y una longitud máxima de 6 metros.

(3) Soldadura

(4) Pintura y revestimiento

Con pequeñas y medianas líneas de cilindros automáticos de recubrimiento de pintura a base de agua, para lograr la carga y descarga automática de robots y pulverización automática, la capacidad de diseño de 4000 piezas por turno;
También disponemos de una línea semiautomática de producción de pintura para grandes cilindros accionada por cadena, con una capacidad de diseño de 60 cajas por turno.

(5) Pruebas

Disponemos de instalaciones de inspección y bancos de pruebas de primera clase para garantizar que el rendimiento del cilindro cumple los requisitos.

 

 

Somos uno de los mejores fabricantes de cilindros hidráulicos. Ofrecemos cilindros hidráulicos integrales. También proporcionamos... cajas de cambios agrícolasHemos exportado nuestros productos a clientes de todo el mundo y nos hemos ganado una excelente reputación gracias a nuestra excelente calidad y servicio posventa. Invitamos a clientes nacionales e internacionales a contactarnos para negociar negocios, intercambiar información y... colabore con nosotros!

 

Cilindro hidráulico Aplicación:

Dos tipos básicos y principios de funcionamiento del cilindro hidráulico:

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