Shijiazhuang Laiye Import& Export Trading Co., Ltd. is one of the leading manufacturers and suppliers of sd180 315 bar 160 l/min sectional valve in China, also supports customized service. If you're going to wholesale high quality sd180 315 bar 160 l/min sectional valve made in China, welcome to get pricelist from our factory.
Where This Valve Fits
The SD180 is a sectional valve. 160 L/min at 315 bar. Up to 7 sections.
We've seen this valve end up on three types of equipment more than any other: large wheel loaders that need to load trucks faster, excavators running multiple attachments at once, and harvesters that can't afford downtime during a narrow weather window.
The common thread is that all of these machines already know 80 L/min is too tight, and 240 L/min would mean rebuilding the entire hydraulic system. The SD180 fits what they already have - more flow without the cost of a complete system overhaul.
A Closer Look
160 L/min - What That Gets You
160 L/min moves bigger cylinders at useful speeds. It's for equipment where the operator notices when flow is restricted - where cycle time matters and waiting costs money. The jump from 80 to 160 is noticeable. Not subtle - noticeable.
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.
Sectional Construction - Why It Matters
The SD180 is built from individual sections. Each section is its own valve - spool, springs, detent. You bolt them together. Need three sections? Use three. Need six? Add three more. Need to change the machine next year? You can.
This matters because equipment changes. New attachments, new functions, new requirements. With a sectional valve, you don't replace the whole thing. You just add sections.
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.
Where It's Typically Used
Based on its flow rating and sectional construction, the SD180 315 bar 160 L/min Sectional Valve typically ends up on:
Larger Loaders
Boom, bucket, steering, and auxiliary functions. The 160 L/min flow keeps the machine moving fast even with multiple functions running at once. Operators notice the difference when stacking heavy material - the boom comes up without that lag they'd gotten used to.
Excavators
Arm, bucket, swing, travel, and attachments - six sections or more isn't unusual. On a machine like this, cycle time is money. The SD180 moves enough oil to keep everything responsive, even when you're running multiple functions at once.
Harvesters
Header lift, reel adjustment, auger control, and auxiliary hydraulics. Harvest windows are tight - you run until you're done, no breaks. The valve needs to hold up to long days without thermal drift. The SD180 does that.
Presses
Fast approach cycles need high flow. The operator controls the speed directly through the lever, which gives them a feel for the material that no electronic system quite matches. When you're forming metal, that tactile feedback matters.
Marine and Industrial
Winches, cranes, heavy material handling. These systems don't need fancy controls. They need to start, stop, and keep running. The SD180 does exactly that.
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 |
| Valve structure | Sectional |
Company Profile
Shijiazhuang Laiye Import & Export Trading Co., Ltd., part of Hebei Onederful® Hydraulic Technology Co., Ltd., has been manufacturing hydraulic components since 1988 - over 35 years of experience. We are a factory, not a trading company, with around 200 employees and a full in-house production process covering casting, machining, assembly, testing, and phosphating.
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.
Quality Commitment
100% incoming material inspection - non-conforming materials are rejected.
Every valve is tested individually on dedicated test stands - not spot-checked.
Each valve has a unique serial number with fully traceable test data.
ISO 9001 quality management system certified.
What We Offer
Pre-sales: technical consultation and system matching
In-sales: order tracking and delivery communication
After-sales: 12-month warranty with remote diagnostic support
OEM/ODM customization: marking, packaging, labeling, and custom configurations
Material certificates, test reports, and certificates of origin available upon request
We export to more than 20 countries - Russia, Europe, the Middle East, South America, and Southeast Asia - with annual exports exceeding 10,000 containers. Flexible logistics: sea freight, air freight, and express delivery.
Production Process
Raw Material Inspection
Iron castings and steel arrive with mill certificates. We verify each batch through spectral analysis for material composition and inspect for internal defects. Any material that doesn't meet spec gets rejected at the door - we don't compromise on raw materials.
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Precision Machining
Each valve body goes to the CNC machining center. Because the SD180 is a sectional valve, every working section is machined individually before assembly. We hold tolerances to microns - the kind of precision that makes the difference between a valve that seals and one that seeps.
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Heat Treatment
Once machined, the bodies go through heat treatment. This relieves internal stress from the cutting process, improves wear resistance, and locks in dimensional stability so the valve holds its geometry over years of use.
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Spool Lapping
Each spool is precision-ground, then measured against its matching bore. Based on the actual clearance, we lap it to final spec. This step determines internal leakage performance - it's what keeps leakage under control instead of letting it creep up over time.
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Surface Treatment
The valve bodies are phosphated. This isn't paint - it's a chemical conversion coating that bonds at the molecular level. If the valve gets knocked, the coating stays. No peeling. We salt-spray random samples to confirm they pass 48 hours.
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Assembly
Working sections, inlet, and outlet end cover get stacked and pulled together with through-bolts. We use seals from trusted suppliers and torque every bolt to spec. Each assembler stamps their work - if something comes up later, we know who built it.
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Pressure Testing
Every valve gets tested. Not every tenth one - every single one. We check neutral leakage, pressure drop across each section, lever effort, and external leaks under pressure. Test data is filed against the serial number.
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Final Inspection
One last check - appearance, marking, packaging. If it passes, it goes to inventory. If it doesn't, it goes back. We don't ship valves we wouldn't use ourselves.
How to Order
Ordering the SD180 315 bar 160 L/min Sectional Valve is straightforward. Here's what we need from you:
1. Specify the Model
Confirm the valve series and flow rating. This is an SD180 with 160 L/min flow capacity.
2. Choose the Number of Sections
Decide how many functions your machine needs to control. The SD180 supports 1 to 7 sections. Each section controls one hydraulic function - lift, tilt, steering, auxiliary, etc. Need three sections? Order three. Need six? Order six. You can add sections later, but it's easier to get the right count upfront.
3. Select the Control Method
Standard is manual lever control. If you need pneumatic or electro-hydraulic pilot control, specify when ordering. The control cover is interchangeable, so you can upgrade later if your needs change.
4. Confirm Specifications
Before placing your order, confirm the following:
Number of sections (1-7)
Control method (manual / pneumatic / electro-hydraulic)
Lever style (standard or custom)
Port sizes (if custom)
Any special requirements (overload valves, custom marking, etc.)
5. Place Your Order
Contact us with your specification. Standard orders typically ship within 15 working days. Custom orders may take 20-30 working days.
FAQ
Q: What is the SD180 best suited for?
A: Larger loaders, excavators, harvesters, presses, marine winches, and heavy industrial equipment - anywhere 160 L/min at 315 bar fits.
Q: Can the SD180 handle continuous heavy-duty operation?
A: Yes. It's built for continuous duty in both mobile and industrial applications. Keep the oil clean and within the specified viscosity and temperature ranges, and the valve will run reliably shift after shift.
Q: Can the SD180 be mounted in any orientation?
A: Yes, but horizontal mounting with levers facing up is recommended for best lever feel and longest spring life. Other orientations may affect centering slightly due to gravity.
Q: What is the expected lifespan with proper maintenance?
A: With clean oil (≤10 μm filtration) and regular maintenance, many years of reliable service. Oil contamination is the main factor that reduces lifespan - not mechanical wear.
Q: What happens if I exceed the maximum pressure?
A: Exceeding 31.5 MPa risks internal damage, increased leakage, and premature failure. The valve may hold short spikes, but continuous over-pressure will shorten its life. Add a relief valve in your system if pressure spikes are common.
Q: How do I know if the SD180 is the right size for my system?
A: We need your pump displacement, cylinder sizes, and the number of functions you run simultaneously. With those numbers, we can confirm whether 160 L/min matches your system.
Q: What if I need the SD180 with a different number of sections?
A: The SD180 is available with 1 to 7 sections. You specify the number when ordering - we build it to your requirements.
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