Shijiazhuang Laiye Import& Export Trading Co., Ltd. is one of the leading manufacturers and suppliers of g1we6 series explosion-isolation solenoid directional valve in China, also supports customized service. If you're going to wholesale high quality g1we6 series explosion-isolation solenoid directional valve made in China, welcome to get pricelist from our factory.
What It Is & How It Works
The G1WE6 is a solenoid-operated directional valve. You feed it hydraulic oil under pressure. The solenoid moves a spool inside the body. The spool shifts and redirects the oil flow. That is how you make a cylinder go in and out. That is how you reverse a hydraulic motor.
The valve bolts onto a subplate. This is the standard pattern for valves in this size range. If your manifold is cut for a standard WE6, this valve fits. Same holes. Same port positions. No modification required.
Inside, you have a spool held in the middle by two springs. The springs keep it centered until you tell it to move. When you put power to one solenoid, that solenoid pushes the spool to one side. Oil then moves from P to either A or B. The port on the other side opens to T. Cut the power, the springs push the spool back to center. All ports return to their neutral state.
There is a manual override pin on each end. If the electrical system fails, you can push the pin with a tool or your thumb. The spool moves the same way as if the solenoid were energized. This is not a convenience feature. It is a backup. You use it for setup, for emergency moves, or when you are troubleshooting and do not want to cycle power.
What This Valve Does Differently
Look at this valve next to our standard WE6. They look almost the same. Same body. Same spool options. Same mounting dimensions. The difference is the solenoid can.
The can on the G1WE6 is not just a cover. It is an explosion-isolation housing. It does one job: if the solenoid sparks or overheats and ignites something inside, the housing keeps that ignition contained. The flame does not get out. The housing is machined with tight clearances. The gaps are small enough to cool any flame before it reaches the outside air. That is the whole point.
Why does this matter? Some work sites have flammable gas in the air. Some have vapor from solvents or fuel. Some have dust that can explode-grain dust, coal dust, chemical dust. In those places, a standard solenoid is a risk. It sparks when it switches. That spark can set off the atmosphere. The G1WE6 series explosion-isolation solenoid directional valve removes that risk. You can put hydraulic controls in those areas without creating a new ignition source.
The valve comes in six spool variations. E, J, H, G, D, and Y. They all have the same explosion-isolation housing. The difference is the neutral position. That is the state when neither solenoid has power. Each type behaves differently in neutral. Some block all flow. Some unload the pump. Some let the actuator float. You pick the one that matches your circuit.
Specifications
| Parameter | Value |
|---|---|
| Nominal size | 6 |
| Max. pressure (P/A/B) | 31.5 MPa |
| Max. pressure (T) | 16 MPa |
| Max. flow | 80 L/min |
| DC voltage | 12 / 24 V |
| AC voltage | 110 / 220 V |
| Spool types | G1WE6E / G1WE6J / G1WE6H / G1WE6G / G1WE6D / G1WE6Y |
| Brand | Onederful® Hydraulic |
| Custom | OEM / ODM available |
Where You Might Use This
Underground mining. Coal mines have methane. Methane mixed with air is explosive. The valve controls roof supports, shearer drums, and conveyor tensioners. If the valve sparks and the housing does not contain it, the consequences are serious. That is why they use this type.
Oil and gas. Refineries. Pipeline pumping stations. Wellhead control panels. Hydrocarbons leak sometimes. It is the nature of the industry. The atmosphere around process equipment can become flammable. Directional valves on actuators and control systems need explosion-isolation housings.
Offshore platforms. Space is tight. Gas accumulates in confined areas. Blowout preventer controls use these valves. Topside hydraulic systems use them too. The environment is salty, humid, and harsh. The valve body holds up to that.
Chemical plants. Reactor agitators change direction. Pumps start and stop. Material transfer systems move product from one vessel to another. Many chemicals give off flammable vapors. Some vapors are heavier than air. They settle in low spots. The valve sits at floor level. Explosion-isolation matters.
Grain handling. Grain dust is explosive. It floats in the air inside elevators and conveyors. One spark and you have a dust explosion. Hydraulic gates and diverter valves need explosion-isolation solenoids. The G1WE6 handles the flow and the environment.
Paint and coating facilities. Spray booths. Mixing rooms. Storage areas. Paint solvents evaporate. The vapors are flammable. Lifts that raise and lower spray guns. Mixers that stir paint. Conveyors that move parts through the booth. All of these use directional valves. All of them need explosion-isolation if the solenoid is in the classified area.
If you are not sure whether your site falls into any of these categories, check with your site safety engineer. They have the classification documents. They know which zones are hazardous and which are not.
If you want application advice, contact our engineering team. We have supplied valves to all of these industries. We can help with spool selection and voltage matching. There is no charge for this. We would rather get it right in the design phase than troubleshoot on site.
Installation and Maintenance
Mount the G1WE6 series explosion-isolation solenoid directional valve to a standard ISO 4401 subplate. The ports are marked on the body. P is pressure inlet. A and B go to your actuator. T is return to tank. The markings are cast into the iron. You cannot miss them.
Before you power up the system, flush the pipes. Debris from pipe cutting and welding is the main cause of valve failure. After flushing, push the manual pin by hand. You should feel the spool move smoothly. Then jog the solenoids with the power off. This confirms your wiring is correct. Finally, bring pressure up slowly. Watch the valve body and the solenoid tubes for any sign of leakage.
Routine maintenance is straightforward. Check the solenoid connectors from time to time. Vibration can loosen them. Look at the body for any seepage around the O-rings. If you pull the valve off the subplate for any reason, replace the O-rings. Do not reuse them.
Keep the hydraulic fluid clean. This is the single most effective thing you can do. Clean fluid keeps the spool moving freely and reduces wear on the internal parts. Change your filters at the recommended intervals.
If the machine has been sitting for a long time, cycle the spool manually a few times before you start it. This frees the spool if it has become sticky from sitting.
Our technical team can help with installation and compatibility questions. We are available during business hours.
We started in 1988. That is more than three decades of building hydraulic valves. Our team has over 200 people. Some have been with us for twenty years. They know the product and the process.
We are a manufacturer, not a trading desk. Our facility does the machining, the assembly, and the testing. Everything happens under one roof. This gives us control over quality and delivery.
We ship over 10,000 containers a year. That is a lot of valves. They go to customers in more than 20 countries-Russia, across Europe, the Middle East, South America, Southeast Asia. We have supplied valves for agricultural equipment in Poland, construction machines in Chile, press builders in Thailand, and mining gear in South Africa.
We also do custom work. OEM and ODM are routine. If you have a drawing, we can build to it. Non-standard spool types. Special voltage coils. Different connectors. We have done all of these. The minimum for custom orders is 10 pieces. For standard valves, there is no minimum.
Our inspection routine has ten steps:
We check the casting material first. Then the raw casting dimensions. Then the spool grinding-diameter and finish. The body bore gets checked for roundness and finish. We deburr and clean every part. Then we test the springs and solenoids before assembly. During assembly we check fit and torque. After assembly, each valve goes through internal leakage testing per ISO 6403, a pressure test at 1.5 times the rated pressure, and a final function test with insulation and visual inspection.
What we offer:
A 12-month warranty from the Bill of Lading date. Technical support from people who understand hydraulics. Shipping by sea, air, railway, truck, or express. Packaging in cartons for small orders and plywood cases for bulk orders.
If you need a reference in your industry, ask. We can share case summaries. If you want to see the shop, we can do a video call. Visitors are welcome too, with advance notice.
FAQ
Q: Can the solenoid coil be replaced without draining the system?
A: Yes. The wet-pin solenoid has a removable coil. Loosen the retaining nut. Slide the old coil off the tube. Slide the new one on. Tighten the nut. Reconnect the wires. The valve stays on the manifold. The oil stays in the system. No leaks. The whole job takes about five minutes.
Q: What is the actual difference between explosion-isolation and intrinsically safe?
A: Two different approaches to the same problem. Explosion-isolation-which is what the G1WE6 uses-means the solenoid housing can contain an internal explosion. If the solenoid sparks or arcs, the flame stays inside the housing. The housing is machined with tight gaps that cool and quench any flame before it reaches the outside atmosphere. Intrinsically safe, on the other hand, limits the electrical energy so that it cannot produce a spark at all. The G1WE6 takes the first approach. Your site electrical engineer will know which method your installation requires.
Q: I have an existing manifold with standard WE6 valves. Can I upgrade to explosion-isolation without changing the manifold?
A: Yes. The hydraulic interface is identical. The G1WE6 bolts onto the same subplate. The port connections are in the same positions. The footprint is the same. You do not need to re-machine the manifold or change your piping layout. The only difference is the solenoid housing is larger to accommodate the flameproof enclosure. Check that you have enough clearance around the solenoids-they are slightly bulkier than standard coils. Most systems have enough room. If you are tight on space, measure the clearance first.
Q: What happens to the explosion-isolation rating if I use a standard coil as a replacement?
A: Do not do this. The standard coil does not have the flameproof enclosure. It will not contain an internal spark. If you put a standard coil on the G1WE6, you lose the explosion-isolation rating. The valve becomes a standard valve. In a hazardous area, this is a safety violation. Always use the correct replacement coil. We can supply them.
Q: How does the manual override work in a hazardous area?
A: The manual pin is a mechanical device. It does not generate electrical spark. You push it with a tool or your thumb, and it moves the spool directly. In a hazardous area, you can use it-but follow your site safety procedures. You are still working in a classified area. The override gives you a way to move the actuator if the solenoids fail. It is not a replacement for proper electrical isolation.
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