WEH Series Directional Hydraulic Valves Of Pilot Operated

WEH Series Directional Hydraulic Valves Of Pilot Operated

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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:

  • Pilot Operated Design:
    • 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.
  • Virziena vadība:
    • These hydraulic valves excel in providing precise directional control of hydraulic fluid.
    • Operatori var viegli pārvaldīt šķidruma plūsmu un novirzīt to uz dažādiem izpildmehānismiem vai komponentiem hidrauliskajā sistēmā.
  • 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.
  • Augsta plūsmas jauda:
    • These valves are designed to handle high flow rates, making them suitable for applications that demand substantial fluid flow.
    • To optimizētās iekšējās ejas un izturīgā konstrukcija nodrošina minimālu spiediena kritumu un efektīvu šķidruma pārvaldību.

WEH Series Directional Hydraulic Valves Of Pilot Operated Parameter:

NG10

Specifikācijas WEH10  type
Max. operating  pressure：P、A、B 350
Port  T With external pilot oil drain  bar 315
With internal pilot oil drain   bar DC  210 AC  160
Y osta 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
Šķidrums Mineral oil,Phosphate ester
Fluid temperature range   ℃ -30  to  +80 ( NBR seals
-20  to  +80 ( FKM seals )
Viscosity range mm2/s 2.8  to  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 Līdzstrāva AC Līdzstrāva AC Līdzstrāva AC Līdzstrāva
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
Uzstādīšanas pozīcija 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
Svars Single solenoid valve kg 6.7
Double solenoid valve kg 7.1
Switching time regulator kg 1.0
Reducing valve kg 0.5

NG16

Specifikācijas WEH16…  type
Max. operating  pressure：P、A、B 350
Port  T With external pilot oil drain  bar 250
With internal pilot oil drain   bar DC  210 AC  160
Y osta 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
Šķidrums Mineral oil,Phosphate ester
Fluid temperature range   ℃ -30  to  +80 ( NBR seals
-20  to  +80 ( FKM seals )
Viscosity range mm2/s 2.8  to  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 Līdzstrāva AC Līdzstrāva AC Līdzstrāva AC Līdzstrāva AC Līdzstrāva AC Līdzstrāva
– 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
Uzstādīšanas pozīcija 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

Specifikācijas WEH25…  type
Max. operating  pressure：P、A、B 350
Port  T With external pilot oil drain  bar 250
With internal pilot oil drain   bar DC  210 AC  160
Y osta 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
Šķidrums 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 Līdzstrāva AC Līdzstrāva AC Līdzstrāva AC Līdzstrāva
– 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
Uzstādīšanas pozīcija 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

Specifikācijas WEH32…  type
Max. operating  pressure：P、A、B 350
Port  T With external pilot oil drain  bar 250
With internal pilot oil drain   bar DC  210 AC  160
Y osta 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
Šķidrums Mineral oil,Phosphate ester
Fluid temperature range   ℃ -30  to  +80 ( NBR seals
-20  to  +80 ( FKM seals )
Viscosity range   mm2/s 2.8  to  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 Līdzstrāva AC Līdzstrāva AC Līdzstrāva
– 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
Uzstādīšanas pozīcija 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:

  • Sistēmas integrācija:
    • Identify the optimal location for installing the WEH series valves within the hydraulic system, considering the desired flow path and control requirements.
    • Nodrošiniet saderību ar sistēmas spiediena un plūsmas specifikācijām.
    • Droši uzstādiet vārstus, izmantojot atbilstošus kronšteinus vai montāžas piederumus.
  • 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.
  • Šķidruma savienojumi:
    • Izvēlieties saderīgus hidrauliskos savienojumus un šļūtenes, lai nodrošinātu drošus un hermētiskus savienojumus.
    • Uzstādīšanas procesā ievērojiet ražotāja norādījumus par pareizajām griezes momenta vērtībām.
    • Lai nodrošinātu uzticamu blīvējumu, izmantojiet atbilstošus vītņu hermētiķus vai lenti.
  • Vadība un regulēšana:
    • 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. Struktūra:
    • 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.

Rūpnīcas iespējas un jauda:

(1) Montāža

Mums ir pirmklasīga neatkarīga pētniecības un attīstības montāžas platforma. Hidraulisko cilindru ražošanas darbnīcā ir četras pusautomātiskas pacelšanas cilindru montāžas līnijas un viena automātiskā slīpuma cilindru montāžas līnija ar projektēto gada ražošanas jaudu 1 miljons vienību. Speciālo cilindru darbnīca ir aprīkota ar dažādu specifikāciju pusautomātisku tīrīšanas montāžas sistēmu ar projektēto gada ražošanas jaudu 200 000 vienību un aprīkota ar slavenām CNC apstrādes iekārtām, apstrādes centru, augstas precizitātes cilindru apstrādes speciālo aprīkojumu, robotizētu metināšanas iekārtu, automātisku tīrīšanas iekārtu, automātisku cilindru montāžas iekārtu un automātisku krāsošanas ražošanas līniju. Esošais kritiskais aprīkojums ir vairāk nekā 300 komplektu (komplektu). Optimāla iekārtu resursu sadale un efektīva izmantošana nodrošina produktu precizitātes prasības un apmierina produktu augstās kvalitātes prasības.

(2) Apstrāde

Apstrādes cehs ir aprīkots ar pielāgotu slīpo sliežu virpošanas centru, apstrādes centru, ātrgaitas asināšanas mašīnu, metināšanas robotu un citu saistītu aprīkojumu, kas var apstrādāt cilindriskas caurules ar maksimālo iekšējo diametru 400 mm un maksimālo garumu 6 metri.

(3) Metināšana

(4) Krāsošana un pārklāšana

Ar mazām un vidēja izmēra cilindriskām automātiskām ūdens bāzes krāsu pārklāšanas līnijām, lai panāktu automātisku robotu iekraušanu un izkraušanu un automātisku izsmidzināšanu, projektētā jauda ir 4000 gabali maiņā;
Mums ir arī pusautomātiska krāsu ražošanas līnija lieliem baloniem, ko darbina ķēdes piedziņa, ar 60 kastu konstrukcijas jaudu vienā maiņā.

(5) Testēšana

Mums ir augstākās klases pārbaudes iekārtas un testēšanas stendi, lai nodrošinātu, ka balona veiktspēja atbilst prasībām.

 

 

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