Shijiazhuang Laiye Import& Export Trading Co., Ltd. is one of the leading manufacturers and suppliers of sd8 manual sectional directional valve in China, also supports customized service. If you're going to wholesale high quality sd8 manual sectional directional valve made in China, welcome to get pricelist from our factory.
What Makes This Valve Different
The SD8 is a sectional valve - built from individual sections bolted together into one stack. Each section controls one function. You can start with a few sections today and add more later.
80 L/min at 315 bar. Available with 1 to 12 sections.
Here's the thing about building equipment: you never quite know what you'll need three years from now. Maybe a new attachment shows up. Maybe a customer asks for an extra function. Maybe the machine gets repurposed for a different job.
With a sectional valve, you're covered. Start with the sections you need today. Add more when the machine changes. You don't replace the whole valve - you just expand it. That's the difference between sectional and monoblock. One grows with you. The other locks you in.
The SD8 Manual Sectional Directional Valve is built for equipment where flexibility matters - for machines that might change over time.
A Closer Look
80 L/min - The Flow for Medium Equipment
80 L/min is enough for mini excavators, skid steer loaders, and compact wheel loaders. Not too small, not too big. The kind of flow that keeps medium-sized equipment moving without wasting capacity.
315 bar max pressure gives you the capability you'd expect in this class. The same pressure rating as the SD11 - you're not giving up pressure by choosing the sectional design.
Sectional Construction - Add as You Go
Each section has its own spool, springs, and detent. They bolt together into a stack. Need three functions? Use three sections. Need six? Add three more. The stack grows with your machine, not against it.
This isn't just about convenience. It's about protecting your investment. A sectional valve means you're not throwing away a perfectly good valve when your machine changes - you're just adding to it.
Control Options
Available with manual, hydraulic, electric, pneumatic, or electro-hydraulic pilot control. Start with manual today. Swap to pilot control later if your needs change. The control cover is interchangeable - the valve body stays the same.
Surface Treatment
Phosphating. Passes 48-hour salt spray. Not paint - won't peel when bumped.
Products Description
Specifications
| Parameter | Value |
|---|---|
| Control method | Manual |
| Rated flow | 80 L/min (100 L/min for DLS8 version) |
| Max operating pressure | 315 bar (35 MPa) |
| Sections | 1 to 12 |
| Control methods | Manual, Hydraulic, Electric, Pneumatic, Electro-hydraulic |
| Ambient temperature | -40°C to +80°C |
| Recommended viscosity | 15–75 mm²/s |
| Valve structure | Sectional |
| Surface treatment | Phosphating |
Options
Control: manual / pneumatic pilot / electro-hydraulic pilot
Load-sensing: available (DLS8 version)
Lever style: standard or custom
Customization
Valve marking, packaging, shipping marks, manual language - all customizable for OEM orders.
Summary of Advantages
The SD8 Manual Sectional Directional Valve stands out through its perfect combination of high flow capacity (80L/min), high rated pressure (315bar), and a modular, sectional design. With its extensive range of control options, circuit configurations, built-in auxiliary valves, and load-sensing capabilities (DLS8 version), it offers system designers a flexible, reliable, and highly cost-effective solution-specifically engineered to deliver precise control over multiple actuators in demanding mobile machinery and industrial hydraulic applications.
High Flow Capacity
High Pressure Rating
Sectional Construction
High Flow Capacity
80/min nominal flow (100 L/min for DLS8 version) ideal for medium- to high-flow hydraulic systems
High Pressure Rating
315 bar maximum working pressure for demanding heavy-duty applications
Sectional Construction
Modular 1–12 section design for flexible system configuration
Where It's Typically Used
Based on its flow rating and sectional construction, the SD8 typically ends up on:
Mini Excavators
Arm, bucket, swing, travel, and attachments - four to six sections isn't unusual. The 80 L/min flow keeps the swing fast and the bucket responsive. And when you need to add a hydraulic breaker or thumb later, you just add a section.
Skid Steer Loaders
Boom, bucket, steering, and auxiliary functions. Skid steers change attachments frequently - the SD8's sectional design means you can add sections for new attachments without replacing the whole valve.
Compact Wheel Loaders
Boom, bucket, steering, and auxiliary hydraulic functions. The 80 L/min flow matches the pump output of compact loaders, and the sectional design supports future expansion.
Combine Harvesters and Tractors
Header lift, reel adjustment, auger control, and auxiliary hydraulic functions. Agricultural equipment often adds new implements seasonally - the modular design adapts to changing needs.
Aerial Work Platforms
Boom lift, rotation, and platform leveling. The sectional design allows for precise control of multiple functions at once.
About The Company
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 machining, assembly, testing, and phosphating. Every valve is individually tested, not spot-checked, with test data filed against its serial number for full traceability. We export to more than 20 countries, hold ISO 9001 certification, and offer OEM customization, technical support, and a 12-month warranty. Material certificates, test reports, and certificates of origin are available upon request.
Certifications
Our Service
01
Pre-sale service
Before an order is placed, the focus is on understanding customer requirements and providing technical guidance.
02
In-Sales Service (During Sales)
Once an order is confirmed, the focus shifts to production transparency, quality assurance, and logistics coordination.
03
After-Sales Service
After delivery, the focus is on installation support, troubleshooting, warranty fulfillment, and long-term partnership.
FAQ
Q: How does OEM customization work?
A: Provide your technical requirements, installation dimensions, and brand preferences. We will provide drawings for your confirmation, and then arrange for a sample. Mass production will begin after the sample passes testing.
Q: Are the mounting dimensions of the SD8 and P80 the same?
A: No, they are different. The SD8 is a segmented type, while the P80 is a one-piece type. The valve body structures are different, and the installation dimensions are also different. If you are replacing an existing valve, it is best to send us the installation drawings or interface dimensions of the original valve so that we can choose the most suitable one.
Q: The equipment may need additional attachments in the future. Should we choose a one-piece or a piecework type?
A: If you're certain you'll add attachments later, choose the modular design without hesitation. A one-piece design has a fixed number of attachments, and you can't add more later; you'll have to replace the entire set, which is much more expensive. A modular design allows you to install the required number of attachments now and add more later.
Q: What kind of devices is the SD8 suitable for?
A: The SD8 is primarily used in equipment such as mini excavators, skid steer loaders, compact wheel loaders, combine harvesters, tractors, and aerial work platforms. Its 80L/min flow rate is suitable for medium-sized hydraulic systems, and its segmented design is ideal for equipment requiring multi-action coordinated control, potential for future attachments, and ease of maintenance.
Q: Is the 80L/min flow rate of the SD8 sufficient?
A: It depends on the size of the equipment. For small excavators, skid steer loaders, and small wheel loaders, 80L/min is generally sufficient. If the equipment is a medium or large loader, with larger cylinders and faster operation, a valve with a larger flow rate may be needed.
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