Shijiazhuang Laiye Import& Export Trading Co., Ltd. is one of the leading manufacturers and suppliers of sd11 series — balanced flow monoblock valve in China, also supports customized service. If you're going to wholesale high quality sd11 series — balanced flow monoblock valve made in China, welcome to get pricelist from our factory.
Most machines fall somewhere in the middle. Too big for 45 L/min. Too small for 80 L/min. That is where the SD11 lives.
75 L/min - the sweet spot. Enough to move medium-sized cylinders at a good clip. Not oversized. Not undersized. Just right. If your system has been running at 45 L/min and you are hitting the limit, the SD11 gives you room to breathe. You get 67% more flow without jumping all the way to 80 L/min.
31.5 MPa pressure. Same as the SD8. More than the SD5. That extra pressure means more power when you need it-lifting heavier loads, driving larger actuators, or handling tougher cycles.
Monoblock construction. One piece of iron. No seals between sections. No tie rods to torque. No assembly required. Bolt it on and go. That is the simplicity of monoblock.
Phosphated surface. Corrosion protection that lasts. Passes 48-hour salt spray. No paint to chip. No rust to worry about. If your equipment works outdoors or in humid conditions, this matters.
1 to 7 sections. Order what you need. Nothing extra. No waste. If your machine has three functions, order three sections. If it has seven, order seven. You do not pay for functions you do not need.
Built for medium equipment. Skid steers. Compact loaders. Medium tractors. Small presses. Material handlers. The SD11 fits where the SD5 feels too small and the SD8 feels too big.
If you are tired of guessing between too little flow and too much flow, the SD11 is the straightforward answer. It gives you enough flow to get the job done without over-sizing your hydraulic system. That means less cost, less weight, and less space taken up on the machine.
What Makes It the Middle Ground
75 L/min. More than the SD5. Less than the SD8. The flow that fits.
31.5 MPa. Same pressure as the SD8. More than the SD5.
1 to 7 sections. Enough for most medium-sized machines.
Monoblock construction. One piece. No assembly. No seals between sections.
Phosphated surface. Corrosion protection. Passes 48-hour salt spray.
Specifications
| Parameter | Value |
|---|---|
| Control method | Manual |
| Pressure medium | Mineral oil based hydraulic oil |
| Nominal flow | 75 L/min |
| Viscosity range | 12 - 400 CST |
| Operating pressure | 31.5 MPa |
| Internal leakage | 15 cc/min at 160 bar, 50°C |
| Ambient temperature | -40°C to +80°C |
| Valve structure | Monoblock valve |
| Valve surface | Phosphating treatment |
| Valve sections | 1 - 7 sections |
What the SD11 Is Good For
Medium-sized equipment. This is where it belongs. Not compact. Not massive. Right in between.
Skid steers and loaders. Extra flow without over-sizing. The machine responds faster.
Agricultural machinery. Medium tractors and harvesters. Balanced flow for multiple functions.
Industrial presses. 75 L/min moves the cylinder fast enough to keep production moving.
Material handlers. Smooth lifting and lowering. No lag. No surge.
If the SD5 leaves you waiting and the SD8 feels like overkill, the SD11 Series - Balanced Flow Monoblock Valve is the right size.
Installation
Mounting. Bolt the monoblock valve directly to the manifold. One unit, no assembly.
Ports. P for pressure, T for tank, A1/B1 and A2/B2 for actuators. G3/4 and G1/2 BSP threads.
Control. Manual lever on each section.
Surface treatment. Phosphated. No additional coating.
About the Company
Founded: 1988
Industry: Hydraulic components manufacturing
Team: 200+ employees
Annual Shipments: 10,000+ containers
Markets: Russia, Europe, Middle East, South America, Southeast Asia (20+ countries)
Core Competency: Design, machining, assembly, and testing of hydraulic valves
Certifications: ISO9002 (2000), Self-export license (2001), CE certification (2004)
Quality Standard: 10 inspection procedures per batch. Each valve tested on dedicated stands.
Warranty: 12 months from Bill of Lading date
Services: Technical support. Global shipping by sea, air, rail, truck, or express. Export-grade packaging.
FAQ
Q: What is a monoblock valve?
A: One piece of cast iron with multiple sections machined into it. No assembly required. No seals between sections. Fewer leak points.
Q: Can I add sections to the SD11 Series - Balanced Flow Monoblock Valve later?
A: No. The valve is cast as one piece. You cannot add sections later. Order the number of sections you need upfront-1 to 7 sections.
Q: What is the surface treatment?
A: Phosphating. It bonds with the metal and provides corrosion resistance. Passes 48-hour salt spray testing. No paint to chip or scratch.
Q: How does monoblock construction reduce leak points?
A: Sectional valves have seals between each section. The SD11 has no sections, so it has no seals between sections. Fewer seals means fewer places for oil to leak.
Q: What machines typically use the SD11?
A: Medium-sized equipment. Skid steers, compact loaders, medium tractors, small presses, material handlers. Any machine that needs more than 45 L/min but not the full capacity of an 80 L/min valve.
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