WEH Series Directional Hydraulic Valves Of Pilot Operated
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Fabrikant leverancier exporteur van hydraulische cilinders.
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:
- Pilootgestuurd ontwerp:
- 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.
- Richtingscontrole:
- These hydraulic valves excel in providing precise directional control of hydraulic fluid.
- Operators kunnen de vloeistofstroom eenvoudig beheren en naar verschillende actuatoren of componenten binnen het hydraulische systeem leiden.
- 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.
- Hoge stroomcapaciteit:
- These valves are designed to handle high flow rates, making them suitable for applications that demand substantial fluid flow.
- Dankzij de geoptimaliseerde interne kanalen en de robuuste constructie is de drukval minimaal en is het vloeistofbeheer efficiënt.
WEH Series Directional Hydraulic Valves Of Pilot Operated Parameter:
NG10
| Specificaties | WEH10 type | |||||||||
| Max. operating pressure:P、A、B | 350 | |||||||||
| Poort T | With external pilot oil drain bar | 315 | ||||||||
| With internal pilot oil drain bar | DC 210 AC 160 | |||||||||
| Haven 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 | |||||||||
| Vloeistof | Minerale olie, fosfaatester | |||||||||
| Fluid temperature range ℃ | -30 to +80 ( NBR seals | |||||||||
| -20 to +80 ( FKM seals ) | ||||||||||
| Viscosity range mm2/S | 2,8 tot 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 | gelijkstroom | AC | gelijkstroom | AC | gelijkstroom | AC | gelijkstroom | |||
| 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 | ||
| Installatiepositie | 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 | |||||||||
| Gewicht | Single solenoid valve kg | 6.7 | ||||||||
| Double solenoid valve kg | 7.1 | |||||||||
| Switching time regulator kg | 1.0 | |||||||||
| Reducing valve kg | 0.5 | |||||||||
NG16
| Specificaties | WEH16… type | |||||||||||||
| Max. operating pressure:P、A、B | 350 | |||||||||||||
| Poort T | With external pilot oil drain bar | 250 | ||||||||||||
| With internal pilot oil drain bar | DC 210 AC 160 | |||||||||||||
| Haven 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 | |||||||||||||
| Vloeistof | Minerale olie, fosfaatester | |||||||||||||
| Fluid temperature range ℃ | -30 to +80 ( NBR seals | |||||||||||||
| -20 to +80 ( FKM seals ) | ||||||||||||||
| Viscosity range mm2/S | 2,8 tot 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 | gelijkstroom | AC | gelijkstroom | AC | gelijkstroom | AC | gelijkstroom | AC | gelijkstroom | AC | gelijkstroom | |||
| – 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 | ||||||||
| Installatiepositie | 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
| Specificaties | WEH25… type | |||||||||||||||||
| Max. operating pressure:P、A、B | 350 | |||||||||||||||||
| Poort T | With external pilot oil drain bar | 250 | ||||||||||||||||
| With internal pilot oil drain bar | DC 210 AC 160 | |||||||||||||||||
| Haven 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 | |||||||||||||||||
| Vloeistof | Minerale olie, fosfaatester | |||||||||||||||||
| 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 | gelijkstroom | AC | gelijkstroom | AC | gelijkstroom | AC | gelijkstroom | |||||||||||
| – 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 | ||||||||||
| Installatiepositie | 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
| Specificaties | WEH32… type | |||||||||||||
| Max. operating pressure:P、A、B | 350 | |||||||||||||
| Poort T | With external pilot oil drain bar | 250 | ||||||||||||
| With internal pilot oil drain bar | DC 210 AC 160 | |||||||||||||
| Haven 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 | |||||||||||||
| Vloeistof | Minerale olie, fosfaatester | |||||||||||||
| Fluid temperature range ℃ | -30 to +80 ( NBR seals | |||||||||||||
| -20 to +80 ( FKM seals ) | ||||||||||||||
| Viscosity range mm2/S | 2,8 tot 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 | gelijkstroom | AC | gelijkstroom | AC | gelijkstroom | |||||||||
| – 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 | ||||||||
| Installatiepositie | 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:
- Systeemintegratie:
- Identify the optimal location for installing the WEH series valves within the hydraulic system, considering the desired flow path and control requirements.
- Zorg voor compatibiliteit met de druk- en stroomspecificaties van het systeem.
- Bevestig de kleppen stevig met behulp van geschikte beugels of montageaccessoires.
- 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.
- Vloeistofverbindingen:
- Kies compatibele hydraulische koppelingen en slangen voor veilige en lekvrije verbindingen.
- Volg de instructies van de fabrikant voor de juiste aanhaalmomenten tijdens het installatieproces.
- Gebruik geschikte schroefdraadafdichtingsmiddelen of tape om een goede afdichting te garanderen.
- Controle en aanpassing:
- 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:
- Structuur:
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
Vermogen en capaciteit van de fabriek:
(1) Montage
We beschikken over een eersteklas, onafhankelijk R&D-platform voor assemblage. De productiewerkplaats voor hydraulische cilinders beschikt over vier semi-automatische hefcilinderassemblagelijnen en één automatische kantelcilinderassemblagelijn, met een geplande jaarlijkse productiecapaciteit van 1 miljoen stuks. De speciale cilinderwerkplaats is uitgerust met diverse specificaties van een semi-automatisch reinigingsassemblagesysteem met een geplande jaarlijkse productiecapaciteit van 200.000 stuks en is uitgerust met gerenommeerde CNC-bewerkingsapparatuur, een bewerkingscentrum, een zeer nauwkeurige cilinderbewerkingsapparatuur, een robotlasmachine, een automatische reinigingsmachine, een automatische cilinderassemblagemachine en een automatische verfproductielijn. De bestaande kritische apparatuur bestaat uit meer dan 300 sets. De optimale toewijzing en het efficiënte gebruik van apparatuur garanderen de nauwkeurigheidseisen van producten en voldoen aan de hoge kwaliteitseisen.

(2) Bewerking
De bewerkingsruimte is uitgerust met een op maat gemaakt schuin rails draaicentrum, bewerkingscentrum, hogesnelheids hoonmachine, lasrobot en andere bijbehorende apparatuur, die de bewerking van cilinderbuizen met een maximale binnendiameter van 400 mm en een maximale lengte van 6 meter aankan.

(3) Lassen

(4) Schilderen en coaten
Met kleine en middelgrote automatische cilindercoatinglijnen voor watergedragen verf, om automatisch laden en lossen door robots en automatisch spuiten te bereiken, is de ontwerpcapaciteit 4000 stuks per ploegendienst;
Ook beschikken wij over een semi-automatische verfproductielijn voor grote cilinders, aangedreven door een kabelrups, met een ontwerpcapaciteit van 60 dozen per ploeg.

(5) Testen
Wij beschikken over eersteklas inspectiefaciliteiten en testbanken om te garanderen dat de prestaties van de cilinder aan de eisen voldoen.

Wij zijn een van de beste fabrikanten van hydraulische cilinders. We bieden een compleet assortiment hydraulische cilinders. Ook leveren we bijbehorende onderdelen. landbouwversnellingsbakkenWe hebben onze producten wereldwijd geëxporteerd en een goede reputatie opgebouwd dankzij onze superieure productkwaliteit en aftersalesservice. We nodigen klanten in binnen- en buitenland uit om contact met ons op te nemen om zaken te doen, informatie uit te wisselen en werk met ons samen!
Toepassing hydraulische cilinder:
