Shijiazhuang Laiye Import& Export Trading Co., Ltd. is one of the leading manufacturers and suppliers of dbw10 solenoid pilot relief valve in China, also supports customized service. If you're going to wholesale high quality dbw10 solenoid pilot relief valve made in China, welcome to get pricelist from our factory.
DBW10 Solenoid Pilot Relief Valve - NG10, 250 L/min, 35 MPa
The DBW10 is a pilot-operated relief valve with a solenoid valve built into the pilot stage. It does two jobs: it sets a maximum system pressure, and it lets you dump that pressure on command by sending a signal to the solenoid.
The "10" means NG10 - 10 mm nominal diameter. That's the smallest size in the DBW family, with a flow capacity of 250 L/min at 35 MPa. If you're working on a small-to-medium hydraulic system - a power unit, a press, or general industrial machinery - this DBW10 solenoid pilot relief valve gives you pilot-operated pressure control and solenoid unloading without taking up more space than you need.
The design is straightforward: a DB-type relief valve with a WE-type solenoid valve mounted directly on top. No external pilot lines. Everything is internal, which means fewer connections, fewer leak points, and a cleaner manifold layout.
Six ways to think about this valve
When you're looking at a pilot-operated relief valve with a solenoid pilot, you're really asking a handful of practical questions. Here's how the DBW10 answers each one.
1. What does it actually do?
It limits pressure and it unloads. The relief function is always there - set the pressure with the adjustment element, and the valve keeps your system from exceeding that number. The solenoid gives you an extra option: when you energize it, the valve opens and drops pressure to near zero. This is how you unload a pump without stopping it.
2. Why combine relief and solenoid in one valve?
To save plumbing. In a conventional system, you'd need a relief valve and a separate solenoid valve with pilot lines running between them. The DBW10 mounts the solenoid valve directly on top of the pilot stage - no external pilot lines, fewer leak points, simpler manifold design. This matters when space is tight and you want to keep the manifold clean.
3. What flow and pressure can it handle?
NG10 is rated at 250 L/min and 35 MPa. That's the entry level for the DBW series. If your system runs above these numbers, you'd need the NG20 or NG30. If it runs below, the DBW10 gives you pilot-operated performance without oversizing.
4. How do I adjust the pressure?
Three adjustment options: a rotary knob (easy to turn, good for frequent changes), a hex head screw with a protective cap (set it and forget it), or a lockable rotary knob with a scale (good for recording and repeating settings). Pick whichever fits how you work.
5. How do I install it?
Subplate mounting. Standard porting patterns - DIN 24340 form E, ISO 6264, CETOP-RP 121H. If your manifold follows these, the valve bolts straight on. No adapter plates, no custom machining. Just bolt it down, connect the ports, wire the solenoid, and you're in business.
6. What happens if the solenoid fails?
The relief function still works - the valve still limits pressure. You just lose the ability to unload. The solenoid coil is replaceable without taking the valve off the subplate. If unloading is critical to your process, keep a spare coil on hand.
Key Specifications (Size 10 / NG10)
| Specification | 10 | 20 | 30 | |||
| Max working pressure(Mpa) | 35 | |||||
| Max.Flow(min) | 250 | 500 | 650 | |||
| Work Voltage | DC | 12/24 | ||||
| AC | 110/220 | |||||
| Open Pressure | 5/10/20/31.5/35 | |||||
Product Drawings
Common applications
The DBW10 solenoid pilot relief valve shows up in small-to-medium hydraulic systems where both pressure control and unloading are needed. Some examples:
Hydraulic power units - main system relief and pump unloading on smaller power packs.
Press systems - pressure limitation during the working stroke and rapid unloading between cycles.
Injection molding machines - pressure control during injection and hold, unloading during cooling cycles.
Industrial machinery - general hydraulic systems requiring pressure control with remote unloading capability.
Test rigs - pressure limitation and remote unloading for safety and convenience.
If your system has a continuous-running pump and you want to save energy during idle periods, the DBW10 does exactly that - and it does it in the smallest package in the DBW series.
Our Factory
Shijiazhuang Laiye Import & Export Trading Co., Ltd. is a manufacturer of hydraulic valves, directional valves, pressure valves, flow valves, accessories, and special components. Products are exported to various markets. For more options, see our DBW20 series and DBW30 series.
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