Introducing our groundbreaking HLPSL and HLPSV load-sensitive proportional multi-way directional spool valves. These revolutionary engineering creations stand as the epitome of hydraulic innovation, seamlessly merging pressure, flow, and directional control into a unified, harmonious masterpiece. This guarantees unparalleled performance and unwavering reliability in every application. Typically composed of three essential functional modules - connecting blocks, directional valves, and end plates - these valves are meticulously crafted for integration into high-end hydraulic systems, essential for top-tier engineering machinery. They precisely govern the movement direction and speed of hydraulic cylinders, motors, and other actuators, delivering unmatched precision and control. Key highlights encompass a compact structure, superior energy efficiency, and the capability for stepless speed control. Beyond this, they empower multiple actuators to operate simultaneously under varying loads, delivering unrivaled performance and versatility for any application.
The HLPSL valves are expertly tailored for constant displacement pump systems, ensuring steadfast and unwavering operation in every setting. In contrast, the HLPSV valves are masterfully engineered specifically for variable pump systems. While HLPSV valves may exhibit a slightly slower response time, they excel in delivering exceptional energy-saving performance, making them the ultimate choice for applications where efficiency is paramount. With their cutting-edge engineering and energy-efficient design, HLPSV valves stand out as the premier solution for advanced hydraulic control requirements, offering a perfect blend of precision, reliability, and efficiency.
| References |
size 2 |
size 3 |
size 5 |
| Number of Directional Valve bank |
1~12 |
1~12 |
1~10 |
| Port access type |
thread connection |
thread connection |
thread connection |
| Flow code |
3,6,10,16,25,40 |
3,6,10,16,25,40,63,80 |
16,25,40,63,80,120,160 |
| Max.flow(L/min) |
54 |
100 |
210 |
| Max.pressure(bar) |
420 |
420 |
420 |
| Control Method |
Pilot circuit pressure(bar) |
20~40 |
20~40 |
20~40 |
| Manual force(N) |
≥2.3Nm |
≥1.3Nm |
≥3Nm |
| Working Pressure(ºC) |
-40~80 |
-40~80 |
-40~80 |
| Weight |
Connection Block (kg) |
1.7 |
4 |
8 |
| Directional Valve bank (kg) |
1.9 |
4 |
8 |
| End Plate (kg) |
0.5 |
1.5 |
2.5 |
| Fix mode |
thread connection M8 |
thread connection M8 |
thread connection M10 |
Installation Instructions
(1) Essential Connection Block Codes
HLPSL: Constant Displacement Pump - The cornerstone of consistent and unwavering performance, ensuring your operations run smoothly and efficiently. This pump is designed to deliver relentless reliability, optimizing your workflow and productivity.;
HLPSV: Variable Displacement Pump - Exemplifying adaptability and flexibility, offering unparalleled versatility to meet diverse operational needs. Its innovative design allows for dynamic adjustments, catering to a wide range of applications with ease.;
(2) Connection Block Ports P & R Specifications - Where precision meets reliability, ensuring trustworthy operations::
2-G3/8; Designed for compact efficiency, catering to streamlined and seamless operational flows. This port combines space-saving features with superior performance, ideal for modern systems.
3-G1/2; Built for robustness and dependability, providing a solid foundation for your system. Its sturdy construction ensures long-lasting support for your most demanding tasks.;
4-G3/4; Offering advanced connectivity, delivering superior control and enhanced system integration. Perfect for applications requiring precise regulation and robust management.;
5, 55-G1; With a superior flow rate, this option is perfect for high-demand applications, ensuring consistent performance. Ideal for operations requiring efficient and steady throughput.;
6-G1 1/4; Providing unmatched performance, designed to excel in the field and overcome challenges. Its exceptional capacity makes it a pivotal component in high-stakes environments.;
(3) Additional Components and Specifications - Lifting system capabilities to new heights::
C,Standard Type - A reliable and trustworthy baseline, tailored to your essential operational needs. Designed to offer optimal balance and performance for core functionalities.;
G,Throttle Valve (For HLPSL only) - Ensures precision in control, enhancing overall system efficiency. Its meticulous design facilitates precise adjustments, boosting system efficacy.;
H,Fixed Differential Overflow Valve for Enhanced Circulating Pressure (~14 bar, HLPSL) - Optimizes flow management, driving superior performance and dependability. Engineered to maintain consistent pressure, this component is crucial for reliable operations.;
(4) Pilot Oil Circuit Pressure Options - Offering customized pressure control solutions for varied applications:0 - No pressure reducing valve; 1 - Pressure reducing valve (20 bar); 2 - Pressure reducing valve (40 bar); Providing tailored solutions to meet your specific operational needs seamlessly. These options empower you to calibrate your system for optimal performance.
(5) 2/2-way Magnetic Ball Valve for System Unloading - Streamlining efficiency and boosting control:C - No magnetic ball valve; F - Normally open magnetic ball valve, pressurizing the pump when powered, unloading it when unpowered; D - Normally closed magnetic ball valve, unloading the pump when powered, pressurizing it when unpowered; Expertly crafted to enhance your system's responsiveness and control.D/F - Comes with a pressure limiting valve for secondary pressure (F50) featuring a specified pressure value; Providing advanced safety measures to secure operations. This feature incorporates cutting-edge safety protocols to protect your system's integrity.
(6) Tool Adjustable, Pressure Limiting Valve in Connection Block: Elevate your hydraulic systems with our adjustable pressure limiting valve, showcasing unparalleled versatility and precision. Featuring adjustable settings at 63, 120, 210, 280, 315, 350, and 400 bar levels, it is crafted to perfection for all your dynamic requirements. For those who value simplicity, /NF designates no pressure limiting valve, specifically tailored for HLPSV. Experience ultimate pressure control, making it an essential component for diverse hydraulic scenarios.
(7) Product Series Classification - Embodying the Pinnacle of Excellence:;-2 2 Series; -3 3 Series; -5 5 Series; Each series is artfully designed to meet exacting standards for every application, ensuring you receive a product perfectly aligned with your specific needs.
(8)Thread size of directional spool valve ports A & B:2-G3/8; 3-G1/2; 4-G3/4; 5-G1; including ancillary blocks or the meticulously engineered intermediate transition block ZPL 5S(V)/H hydraulic control shut-off valve, crafted for seamless system integration.
(9)Directional valve block inflow controller options: Choose from a range of configurations: 1, without inflow controller; 2, standard inflow controller; 4, an advanced 3-way flow controller for both inlet and outlet, ideal for the N 3/3-way valve; 5, reinforced inflow controller; 8, pre-selectable options, each ensuring precision and operational excellence.
(10) Valve core function symbols: Unlock a wide spectrum of core functions: L, M, F, H, J, B, R, O, N, each intricately designed to meet unique functional requirements with precision.
(11) Output flow code for ports A & B: Enhance system efficiency with a variety of maximum output flows: 3, 6, 10, 16, 25, 40, 63, 80, 120, 160, 210 L/min, engineered for peak performance.
(12) Secondary pressure limitation options: Select from: N, no pressure limiting protection; C, simultaneous pressure limitation of actuator ports A & B; A---B---, independent pressure limitation for ports A & B, measured in bar, ensuring comprehensive system safety.
(13) Function ON/OFF and pressure outlet options: Discover customizable choices: N, without function ON/OFF or pressure outlet; X, C type pressure limitation; S/S1, AB type pressure limitation; A, electrical ON/OFF on side A; B, electrical ON/OFF on side B, each engineered for precise control.
(14) Operation modes: Explore diverse operation modes: A(1,2), manual operation with optional long or short handle; E, electric proportional control; EA(1,2), a harmonious blend of electric proportional control and manual operation; D, electric switching value control; DA(1,2), combined electric switching value control and manual operation; M, manual friction positioning with long handle; H, pure hydraulic control (alignment of pilot oil ports with oil ports A and B); F, pure hydraulic control with perpendicular pilot oil ports, meticulously designed for comprehensive control.
(15) Ancillary block port sizes: Tailor your system with a selection of versatile options: /2 G3/8; /3 G1/2; /4 G3/4; /5 G1, engineered for seamless adaptability in any application.
(16) End plate options: Our tailored end plate solutions offer unparalleled versatility and adaptability, including: E1, the standard choice, featuring an external discharge of pilot oil and an external oil return control port T; E2, designed akin to E1, but enhanced with an additional port Y for expanded functionality; E3, equipped with a sophisticated 2-position 3-way magnetic ball valve, which ingeniously elevates the system pressure to safety valve levels during power supply, ensuring optimal safety and performance.
E4, a variant similar to E1, yet utilizes an internal discharge of pilot oil, effectively sealing port T for heightened efficiency; E5, mirroring E2, also incorporates internal discharge, offering seamless operation; E6, which shares attributes with E3, ensures sophisticated discharge control, each option meticulously designed to provide precision and reliability.
(17) Control voltage and anti-explosion cable choices: Choose from our array of optimal options like G12-12VDC, which assures unparalleled safety and compatibility with even the most specialized applications, providing peace of mind and superior performance.G24-24VDC; G24Ex-3m-24VDC; G12Ex-3m-12VDC; G24MA-3m-24VDC; G12bb621436
Since our inception in 2009, Jiangsu KM Hydraulic Control System Co., Ltd. has been a beacon of innovation and excellence within the hydraulic industry. As a prestigious subsidiary of the renowned China Baoan Group (stock code: 000009), we proudly hold the designation of a national high-tech enterprise. Our expertise centers on the meticulous research, development, manufacturing, and sales of superior hydraulic components. Our esteemed status as a national 'specialized, refined, and innovative' small giant enterprise highlights our unwavering commitment to technological advancement and exceptional quality. This relentless dedication cements our position as leaders in the industry.
Our flagship product, the load-sensitive proportional valve, represents the pinnacle of hydraulic system control technology. This expertly engineered component is indispensable for construction machinery and heavy-duty equipment, proving vital for high-stakes applications like emergency rescue operations, tunnel engineering, mining, and municipal service vehicles. We take immense pride in our strategic partnerships with leading domestic manufacturers, playing a crucial role in the localization of core hydraulic components for high-end mechanical equipment. Guided by our core philosophy-'serving customers with technology, impressing customers with our attitude, and retaining customers with quality'-we are steadfast in delivering exceptional products, services, and solutions. Our mission is to emerge as a globally trusted supplier of premier hydraulic components, setting new benchmarks of excellence on the world stage.
Question:1. What about the lead time?
Answer:The lead time for production is typically around one month following receipt of payment. During this period, we engage in detailed preparation and implement stringent quality control measures to ensure that every product reaches you in perfect condition. Your satisfaction with our impeccable delivery is our top priority.
Question:2. Do you have any MOQ limit for LED light orders?
Answer: We offer an impressively low minimum order quantity, allowing you the flexibility to order even a single piece for sample verification. This adaptability means you can start your projects with ease and precision, meeting your unique requirements without hassle.
Question:3. How to proceed with an order for LED lights?
Answer: Initiate the process by sharing your detailed requirements or intended applications with us. We will then tailor a quote specifically for you, based on your needs or through our expert advice. Upon confirming the drawings and placing a deposit, we will finalize the order and commence production. We ensure every specification is adhered to with precision, offering you a seamless and customized solution.drawings,and place a deposit to formalize the order. Ultimately, we will organize production, guaranteeing that every detail is executed to perfection for a seamless and tailored solution.
Question:4. Is it OK to print my logo on the product?
Answer: Absolutely, this is certainly possible. Please make sure to inform us formally before the production begins and confirm the design based on the sample we provide. This ensures that your branding is showcased with utmost precision and superior quality, reflecting your identity perfectly.
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