Shijiazhuang Laiye Import& Export Trading Co., Ltd. is one of the leading manufacturers and suppliers of p40 series — reliable compact monoblock valve in China, also supports customized service. If you're going to wholesale high quality p40 series — reliable compact monoblock valve made in China, welcome to get pricelist from our factory.
Fits Where Others Do Not
Some machines have tight spaces. Engine compartments. Narrow frames. Compact equipment where every centimeter counts.
The P40 is built for those machines. Monoblock construction means one piece of cast iron. No bulky tie rods. No extra seals between sections. No assembly required.
It is not a sectional valve. You cannot add sections later. You order the number you need-1 to 7-and the valve comes as one unit. That keeps it smaller and simpler than sectional alternatives.
The body is phosphated. Passes 48 hours of salt spray without rust.
Manual control. A lever on each section. No electricity. No wiring.
The P40 Series - Reliable Compact Monoblock Valve is for machines where space is the constraint. It is not the biggest or the most powerful. It is the one that fits. Sometimes that is all that matters.
What Makes It Reliable
Monoblock construction. One piece of iron. No seals between sections. No leak points. Simple.
Manual lever control. No solenoids. No wiring. No electrical problems to chase. Just a lever on each section.
Phosphated surface. Corrosion protection. Passes 48-hour salt spray. Keeps working in tough conditions. No paint to chip.
Proven design. Iron castings. Precision machining. Ground spools. No shortcuts.
40 L/min. The right size for small cylinders and moderate speeds.
25 MPa. Enough pressure for compact equipment.
1 to 7 sections. Order what you need. Nothing extra. No waste.
Specifications
| Parameter | Value |
|---|---|
| Ambient temperature | -40°C to +80°C |
| Operating viscosity | 15 - 75 mm²/s |
| Max pressure | 25 MPa |
| Rated flow | 40 L/min |
| Structure | Monoblock valve |
| Sections | 1 - 7 sections |
Where It Goes
Skid steers. Tight engine bays. Limited space for components. The monoblock design slides in where sectional valves cannot.
Small loaders. These machines do not need big valves. They need something that matches their size. The P40 does.
Tractors and balers. Simple hydraulic circuits. Lift, lower, fold. No complicated sequences. The P40 handles them.
Utility vehicles. Sweepers, small trucks, municipal equipment. Manual control keeps it simple. No wiring to run. No electrical issues to diagnose.
Marine deck machinery. Winches, steering gear, hatch covers. Salt water is tough on equipment. The phosphated surface holds up.
The P40 is not for every machine. It is for machines that are small, simple, and tight on space. If that sounds like your equipment, this valve fits.
Manufacturing Process
Casting
Iron castings arrive at our foundry. Each one is inspected for porosity and dimensional accuracy. Castings with defects are rejected before they reach the machining line. One casting makes one valve-no separate sections to machine later. The material is high-strength alloy iron, chosen for durability and wear resistance.
Machining
The monoblock body is machined as one piece. All bores, ports, and mounting faces are machined in a single setup. This keeps everything perfectly aligned. No misalignment between sections. No tolerance stack-up. The spool bores are straight and true from end to end. Port threads are cut to standard specifications. Mounting faces are machined flat to ensure leak-free sealing against the manifold.
Spool grinding
Spools are ground to final size. Surface finish and clearances are checked carefully. Internal leakage depends on this step. Too tight, the spool sticks. Too loose, leakage goes up. We hold the spec. Each spool is matched to its bore for optimal performance.
Assembly
Spools are inserted into the bores. End caps are fitted. Levers are attached. No tie rods to torque. No sections to stack. No alignment pins to line up. Assembly is quick and straightforward. Every fastener is torqued to specification.
Testing
Every valve goes on the test stand. Leakage is measured at rated pressure. Spool shift is checked for smooth operation. Pressure is tested to ensure the valve holds rated pressure without external leakage. If it does not pass, it does not ship.
Phosphating
The assembled valve body receives a phosphate coating. This surface treatment bonds with the metal and provides corrosion resistance. Samples from each batch are salt spray tested to 48 hours. The coating is not paint-it will not chip or scratch off.
Packing
Small orders go into cartons with foam inserts. Bulk orders go into plywood cases. Test reports are included when requested.
Shipping
Sea, air, rail, truck, or express. Worldwide delivery. Tracking numbers provided for every shipment.
How to Order
Ordering a P40 valve is straightforward.
What you need to tell us:
Series: P40
Number of sections: 1 to 7
Quantity: How many?
How to place an order:
Contact Cathy by email or WhatsApp. Tell her what you need. She will confirm availability, price, and delivery time.
Delivery times:
In stock: 2-3 business days
Out of stock: 10-14 business days
Custom orders: 15-25 business days
What you get:
Each valve comes with a packing list and inspection certificate. Request drawings or test reports when you order-we include them at no extra charge.
FAQ
Q: What is the flow rating of the P40 Series - Reliable Compact Monoblock Valve?
A: 40 L/min nominal flow. That is the design point for the valve. It is enough for small cylinders, moderate-speed actuators, and compact equipment. If your system runs higher than 40 L/min, you may need a larger valve.
Q: What is the pressure rating?
A: 25 MPa maximum operating pressure. Do not exceed this rating. Running above the limit can damage internal components. The valve is designed for compact equipment where pressures are typically in this range.
Q: What control method is available?
A: Manual lever. Each section has its own lever. The operator moves the lever directly. No electricity. No wiring. No solenoids to fail. Simple and reliable.
Q: How many sections can the P40 have?
A: 1 to 7 sections. Order the number you need upfront. The valve is cast as one piece, so you cannot add sections later. If you need more than 7 sections, look at the SD series or sectional valves.
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. Simpler installation. Lower cost than sectional valves.
Q: Can I add sections to the P40 later?
A: No. The valve is cast as one piece. You cannot add sections after it is made. Order the number of sections you need upfront. If your machine might need more functions later, consider a sectional valve instead.
Q: What is the operating temperature range?
A: -40°C to +80°C. The valve is designed to perform in extreme environments-from cold climates to hot industrial settings. The seals and materials are chosen to handle both ends of the range.
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