Shijiazhuang Laiye Import& Export Trading Co., Ltd. is one of the leading manufacturers and suppliers of sd180 — 160 l/min manual sectional valve in China, also supports customized service. If you're going to wholesale high quality sd180 — 160 l/min manual sectional valve made in China, welcome to get pricelist from our factory.
Where This Valve Fits
The SD180 is a sectional valve - individual sections bolted together, each controlling one function. You can add or remove sections as your machine changes.
160 L/min at 31.5 MPa max. That puts it in a specific spot. Not the 80-100 L/min range of the smaller SD series, not the 200 L/min of the DCV200. Somewhere in the middle, where a lot of equipment actually lives.
If you're looking at the DCV140 and thinking it's a little light, but the DCV200 is more than you need, the SD180 is worth a close look. It's built for systems that need more than 140 L/min but don't require the full 200 L/min capacity.
For equipment requiring this flow and pressure range, the SD180 - 160 L/min Manual Sectional Valve gives you the capacity without overbuying.
A Closer Look
What 160 L/min Actually Means
160 L/min is enough to run larger cylinders at useful speeds. It's not for compact equipment - it's for machines where the operator notices when flow is restricted. The kind of equipment where cycle time matters.
The pressure rating is 16 MPa nominal, 31.5 MPa max. That's 160 bar continuous, 315 bar peak. Most systems run somewhere in between. The SD180 handles both.
Oil Requirements
Temperature range: -20°C to +80°C
Viscosity range: 0–400 mm²/s
Filtration accuracy: ≤10 μm
Keep the oil clean and within these ranges, and the valve does its job. The filtration requirement (≤10 μm) is worth paying attention to - dirty oil is what kills valves, not wear. This spec tells you what the valve needs to stay healthy.
The SD180 - 160 L/min Manual Sectional Valve is built for the middle of the flow range - not too small, not too big, just right for a lot of equipment.
How It Works
Push the lever. The spool moves. Oil goes from P to either A or B. The cylinder extends or retracts. Release the lever, springs return the spool to center. Flow stops.
No electronics. No sensors. No software to update. Just a lever and a spool inside a machined body.
The sectional construction means you can configure it the way you need it today, and add sections later if your machine changes. Each section has its own lever and spool, all sharing the same P port.
Specifications
| Parameter | Value |
|---|---|
| Control method | Manual |
| Nominal pressure | 16 MPa (160 bar) |
| Maximum pressure | 31.5 MPa (315 bar) |
| Nominal flow | 160 L/min |
| Back pressure | ≤1 MPa |
| Oil temperature range | -20°C to +80°C |
| Viscosity range | 0–400 mm²/s |
| Filtration accuracy | ≤10 μm |
Company Introduction
Shijiazhuang Laiye Import & Export Trading Co., Ltd. is a subsidiary of Hebei Wendefu Hydraulic Technology Co., Ltd., a high-tech enterprise specializing in the R&D, production, and sales of hydraulic valve components. Founded in 1988 and headquartered in Shijiazhuang, Hebei Province, we have over 35 years of experience in hydraulic component manufacturing.
Our company possesses strong technical capabilities and comprehensive processing capacity, supported by a professional team of over 200 people, including senior engineers and technical experts with more than twenty years of experience in the hydraulic industry. We have also invited several industry-leading experts to serve as senior consultants, providing ongoing support for product development and technical innovation.
Our product portfolio covers the full range of pressure valve components, including directional valves, pressure valves, flow valves, accessories, and custom-engineered parts. These products are widely used in construction machinery, agricultural equipment, industrial systems, marine machinery, and mining equipment. With solid technical expertise and consistent product quality, we export to more than 20 countries and regions, including Russia, Europe, the Middle East, South America, and Southeast Asia, with an annual export volume exceeding 10,000 containers.
We are a manufacturing enterprise, not a trading intermediary. Everything from precision machining and spool lapping to assembly and factory testing is done in-house under one roof. Every valve is individually tested on dedicated test stands to ensure that every product delivered to our customers is reliable and durable.
Our Mission
Technology makes work easier; quality earns customer trust. By continuously optimizing product performance and quality control systems, and introducing advanced technologies, we strive to make mechanical operations simpler, more efficient, and more reliable.
FAQ
Q: Can the SD180 handle continuous operation at max pressure?
A: The valve is rated for 16 MPa continuous, 31.5 MPa intermittent. Running at max pressure continuously will generate more heat and may reduce component life. Consider your duty cycle.
Q: How many sections can the SD180 have?
A: The drawing shows multiple sections. Contact us for the maximum section count and configuration options.
Q: How many sections can the SD180 have?
A: The drawing shows multiple sections. Contact us for the maximum section count and configuration options.
Q: What is the torque spec for the through-bolts?
A: Through-bolt torque is critical for proper section sealing. Contact us for the specific torque spec - it depends on the number of sections.
Q: Can the SD180 be used with a load-sensing pump?
A: The SD180 is a directional valve. It can be used with load-sensing pumps but won't provide load-sensing signals. Use a separate pressure-compens
Q: Does the SD180 have a relief valve built in?
A: The SD180 is a directional valve - it controls flow direction. Pressure relief is handled by a separate relief valve in your hydraulic system.
Q: What is the expected lifespan with proper maintenance?
A: With clean oil and regular maintenance, expect many years of reliable service. Oil contamination is the main factor that reduces lifespan - not mechanical wear.
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