Shijiazhuang Laiye Import& Export Trading Co., Ltd. is one of the leading manufacturers and suppliers of p80 compact monoblock valve for 80 l/min systems in China, also supports customized service. If you're going to wholesale high quality p80 compact monoblock valve for 80 l/min systems made in China, welcome to get pricelist from our factory.
Where This Valve Fits
The P80 is a monoblock valve. One piece of iron. No sections bolted together, no through-bolts to torque, no seals between sections because there are no sections.
Up to 7 sections, all in one solid block.
80 L/min at 250 bar. This is a useful middle ground. Not the 40 L/min of the smaller P40 - more flow for when you need it. But not a sectional valve either - simpler, more compact, fewer places to leak.
Some people choose monoblock for this size of machine because the configuration is settled. The machine does what it does, and it won't change. For those applications, monoblock makes more sense than paying for sectional flexibility you'll never use.
For equipment that fits this flow and pressure range, the P80 Compact Monoblock Valve for 80 L/min Systems is a straightforward choice.
A Closer Look
80 L/min - What That Gets You
80 liters per minute moves things faster than 40. If your machine has larger cylinders or you're running multiple functions, that extra flow shows up in the cycle time. The difference isn't subtle - operators notice it on the first shift.
The 250 bar max pressure is typical for this class. Not the 350 bar you'd find on heavy excavators, but enough for compact loaders, forklifts, and most agricultural gear. If your machine runs at 200–220 bar, you've got headroom.
Monoblock Simplicity
One casting. No joints to seal. No through-bolts to torque. No stack to assemble.
Because the spool bores are all machined into the same block of iron, they stay aligned. There's no stack-up of tolerances from multiple sections. In practice, this means the levers feel consistent across all sections, and the spools move freely without binding.
Oil Requirements
Ambient temperature: -40°C to +80°C
Operating viscosity: 15–75 mm²/s
Stay within these ranges, and the valve will do what it's supposed to do, shift after shift.
The P80 Compact Monoblock Valve for 80 L/min Systems is built for equipment where simplicity and reliability matter more than flexibility.
How It Works
Push the lever. The spool shifts. Oil routes from P to either A or B. The cylinder moves. Release the lever, springs return the spool to center. Flow stops.
No sensors. No circuit boards. No software. Just a lever, a spool, and a block of iron.
Up to 7 sections, each with its own lever and spool. All sections share the same P port. Each has its own A and B ports.
Specifications
| Parameter | Value |
|---|---|
| Structure type | Monoblock |
| Rated flow | 80 L/min |
| Max pressure | 250 bar (3600 psi) |
| Ambient temperature range | -40°C to +80°C |
| Operating viscosity range | 15–75 mm²/s |
| Sections | Up to 7 sections |
About Us
We're a manufacturer, not a middleman. Shijiazhuang Laiye Import & Export Trading Co., Ltd. is part of Hebei Wendefu Hydraulic Technology Co., Ltd. We started in 1988 - over 35 years ago.
The factory has about 200 people. We machine, assemble, and test everything ourselves. Every valve gets tested individually, not as a batch sample. The test results go into a file with the valve's serial number.
Our Production Process
Raw material inspection → precision machining → heat treatment → spool lapping → surface treatment (phosphating) → assembly → pressure testing → final inspection. Every step is done in-house.
Quality Commitment
100% incoming material inspection
Independent inspection records for each machining process
100% finished product testing on dedicated test stands
Each valve has a unique serial number with fully traceable test data
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
FAQ
Q: What is the difference between the P80 and a sectional valve with the same flow rating?
A: Construction. P80 is monoblock - one solid casting. A sectional valve is built from individual sections bolted together. Monoblock has fewer leak points and is more compact. Sectional offers expandability. Choose based on whether you need future flexibility.
Q: Is the P80 compatible with P40 sections?
A: No. The P80 is a monoblock - one solid casting. You can't mix sections between different monoblock valves. If you need flexibility, look at our SD series sectional valves.
Q: Can the P80 handle continuous operation at max flow?
A: Yes, within the operating parameters. Keep oil temperature within the specified range and maintain clean oil. The valve is designed for mobile and industrial applications with continuous duty cycles.
Q: How does the P80 handle shock loads?
A: The monoblock construction is rigid and handles typical shock loads in compact equipment applications. For extreme shock applications, we recommend adding a relief valve close to the actuator.
Q: What is the maximum oil temperature?
A: Follow the ambient temperature range: -40°C to +80°C. Oil temperature should stay within this range. If your system runs hot, consider an oil cooler.
Q: Can the P80 be used in a forestry or mining application?
A: Yes, with proper protection from debris. The monoblock construction is robust. Consider adding protective covers over the levers to prevent damage from falling debris.
Q: How do I clean the valve without damaging the surface?
A: Wipe with a clean cloth and mild solvent. Don't use strong alkaline or acid cleaners. Keep the valve surface lightly oiled.
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