Shijiazhuang Laiye Import& Export Trading Co., Ltd. is one of the leading manufacturers and suppliers of sd180 series — mid-high flow monoblock valve in China, also supports customized service. If you're going to wholesale high quality sd180 series — mid-high flow monoblock valve made in China, welcome to get pricelist from our factory.
When 80 Is Not Enough and 240 Is Too Much
You have seen this before. You put an 80 L/min valve on a machine. It works, but barely. The cycle drags. The operator sits waiting. Production suffers.
You look at a 240 L/min valve. It fixes the speed issue. But it is bulkier, heavier, and costs more. You are paying for capacity you will never use.
The SD180 is a different approach. 160 L/min. Twice the flow of the SD8. Two-thirds of what the SD25 offers. Enough flow to keep heavy equipment moving fast, without going overboard.
The SD180 Series - Mid-High Flow Monoblock Valve is for machines that need more than 80 L/min but do not need the full 240 L/min capacity. That is a lot of equipment. That is why the SD180 exists.
The Smart Middle Choice
160 L/min is a practical number. Enough flow to make a real difference on heavy equipment. Faster cycles. Quicker response. Better productivity.
Twice the flow of the SD8. If your machine has been running at 80 L/min and hitting the limit, the SD180 Series - Mid-High Flow Monoblock Valve gives you room to breathe. You get 160 L/min-double the flow-without jumping all the way to 240 L/min.
Two-thirds the flow of the SD25. If you have been looking at a 240 L/min valve and wondering why you need that much capacity, the SD180 gives you a more sensible option. Same 31.5 MPa pressure rating. More than enough flow for most heavy equipment. Lower cost. Less weight. Smaller footprint.
Same monoblock simplicity. One piece of iron. No assembly. No tie rods. No seals between sections.
31.5 MPa. Enough pressure for heavy digging, lifting, and pushing.
Phosphated surface. Corrosion protection. Passes 48-hour salt spray.
Manual control. Lever on each section. No electricity. No wiring. Simple and reliable.
The Smart Middle Choice
160 L/min is a practical number. Enough to make a real difference on heavy equipment. Faster cycles. Quicker response. Better productivity.
Twice the flow of the SD8. If your machine has been running at 80 L/min and hitting the limit, the SD180 Series - Mid-High Flow Monoblock Valve gives you room to breathe. You get double the flow-160 L/min-without jumping all the way to 240 L/min.
Two-thirds the flow of the SD25. If you have been looking at a 240 L/min valve and wondering why you need that much capacity, the SD180 gives you a more sensible option. Same 31.5 MPa pressure rating. More than enough flow for most heavy equipment. Lower cost. Less weight. Smaller footprint.
Same monoblock simplicity. One piece of iron. No assembly. No tie rods. No seals between sections.
31.5 MPa. Enough pressure for heavy digging, lifting, and pushing.
Phosphated surface. Corrosion protection. Passes 48-hour salt spray.
Manual control. Lever on each section. No electricity. No wiring. Simple and reliable.
Specifications
| Parameter | Value |
|---|---|
| Nominal pressure | 16 MPa |
| Maximum pressure | 31.5 MPa |
| Nominal flow | 160 L/min |
| Back pressure | ≤1 MPa |
| Hydraulic oil temperature | -20°C to +80°C |
| Viscosity range | 0 - 400 mm²/s |
| Filtration accuracy | ≤10 μm |
What the SD180 Replaces
If you have been running an 80 L/min valve and wishing it moved faster, the SD180 is the natural step up. Same monoblock simplicity. Twice the flow.
If you have been running a 240 L/min valve and realizing you never use that much capacity, the SD180 is the downsized solution. Same pressure rating. Lower cost. Less weight.
It fits loaders. Excavators. Large harvesters. Industrial presses. Material handlers. Any heavy equipment that needs more than 80 L/min but does not need 240 L/min.
The SD180 replaces the wrong-size valve with the right-size valve. No more guessing. No more oversizing. Just the flow you actually need.
Installation
Mounting. Bolt the monoblock valve directly to the manifold. One piece, no assembly. No tie rods to torque. No sections to align.
Ports. A1/B1 and A2/B2 for actuators. Port markings are on the body.
Control. Manual lever on each section. Move the lever, the spool shifts. No electricity. No wiring.
Surface treatment. Phosphated. No extra coating needed. Just bolt it on and go.
Manufacturing Process
Casting. Iron castings arrive. Each one is inspected for defects. One casting makes one complete valve.
Machining. The monoblock body is machined as one piece. All bores, ports, and faces are done in a single setup. This keeps everything aligned.
Assembly. Spools go into the bores. End caps are fitted. Levers are attached. No tie rods to torque.
Testing. Every valve runs on the test stand. Leakage is measured. Pressure is checked. If it does not pass, it does not ship.
Phosphating. The body gets a phosphate coating. It protects against corrosion. Samples from each batch are salt spray tested to 48 hours.
Packing & Shipping. Small orders go in cartons. Bulk orders go in plywood cases. Sea, air, rail, truck, or express. Worldwide delivery with tracking.
About the Company
Founded: 1988
Team: 200+ employees
Annual Shipments: 10,000+ containers
Markets: Russia, Europe, Middle East, South America, Southeast Asia (20+ countries)
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
We are a manufacturer, not a trading desk. We machine the parts. We assemble them. We test them. Everything under one roof.
FAQ
Q: What is the difference between SD180 and SD25?
A: Flow and pressure rating. SD25 gives you 240 L/min. SD180 gives you 160 L/min. Both are monoblock valves.
The SD180 has a lower nominal pressure rating-16 MPa versus 20 MPa on the SD25. But the maximum pressure is the same: 31.5 MPa on both. That means the SD180 can handle the same peak pressure as the SD25, just with less continuous flow capacity.
If your machine needs maximum flow, choose the SD25. If 160 L/min does the job, the SD180 saves you cost and space. No need to pay for capacity you will not use.
Q: What control method is available?
A: Manual lever. Each section has its own lever. Move the lever, the spool shifts. No electricity. No wiring. No solenoids to fail. Simple and direct. The operator feels the spool move through the lever. That feedback matters in some applications-you know when the valve has shifted without looking at a light or a gauge.
Q: What is the nominal pressure vs maximum pressure?
A: Nominal pressure is 16 MPa for continuous operation. That is what you run all day. The valve is designed to handle that pressure consistently without issues. Maximum pressure is 31.5 MPa for intermittent use-short bursts, not sustained. Do not exceed the maximum pressure rating. Running above it, even briefly, can damage internal components. If your system regularly needs more than 16 MPa, the valve can handle it in short bursts. But if you need continuous high pressure, you should consider a valve with a higher nominal rating.
Q: How do I know if the valve needs repair?
A: Watch for these signs: increased internal leakage, slow or jerky operation, or oil weeping from the valve body. If the actuator moves slower than usual or drifts when it should hold position, the valve may be worn. If you see external leakage, check the seals first-sometimes that is all it is. If performance drops noticeably, the valve should be inspected. Contact us for evaluation. We will help you figure out if it needs repair or replacement. Catching problems early saves money. A small leak today can turn into a major failure tomorrow.
Q: Can the valve be repaired in the field?
A: Minor repairs-seal replacement and port cleaning-can be done in the field. Major repairs require clean room conditions. Ship it back to us for major work.
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