Introducing our groundbreaking HLPSL and HLPSV load-sensitive proportional multi-way directional spool valves. These revolutionary engineering creations represent the pinnacle of hydraulic innovation, seamlessly integrating pressure, flow, and directional control into a singular, harmonious masterpiece. This guarantees unparalleled performance and 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, crucial 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 reliable operation in every setting. On the other hand, the HLPSV valves are masterfully engineered 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 - The foundational elements for flawless system configuration:
HLPSL: Constant Displacement Pump - The keystone of reliability, providing unwavering and consistent performance to ensure smooth, efficient operations.;
HLPSV: Variable Displacement Pump - A paragon of versatility, offering remarkable flexibility to meet diverse operational demands with ease.;
(2) Connection Block Ports P & R Specifications - Merging precision and reliability for a trusted operational framework::
2-G3/8; Expertly crafted for compact proficiency, ensuring a streamlined and seamless operational flow.
3-G1/2; Robustly engineered for reliability, providing a solid foundation for maintaining system integrity.;
4-G3/4; Featuring advanced connectivity for superior control and enhanced system integration.;
5, 55-G1; Equipped for superior flow rates, ideal for high-demand applications, ensuring consistent and reliable performance.;
6-G1 1/4; Unmatched performance, designed to excel in demanding environments and tackle challenges effortlessly.;
(3) Additional Components and Specifications - Maximizing system capabilities to new heights::
C,Standard Type - A reliable foundation, meticulously designed to meet essential operational needs with precision.;
G,Throttle Valve (For HLPSL only) - Guarantees precision control, significantly enhancing your system's efficiency.;
H,Fixed Differential Overflow Valve for Enhanced Circulating Pressure (~14 bar, HLPSL) - Elevates flow management and drives unmatched performance.;
(4) Pilot Oil Circuit Pressure Options - Tailored pressure control solutions for diverse applications:0 - No pressure reducing valve; 1 - Pressure reducing valve (20 bar); 2 - Pressure reducing valve (40 bar); Tailored solutions meticulously designed to meet your specific operational demands.
(5) 2/2-way Magnetic Ball Valve for System Unloading - Enhancing efficiency and control with innovative solutions: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; Each option is expertly designed to optimize system efficiency and adaptability.D/F - Our state-of-the-art precision-engineered pressure limiting valve, set for secondary pressure (F50) with a defined pressure value, fortifies your operations with unparalleled security and reliability. This cutting-edge innovation ensures that advanced safety measures are seamlessly integrated, elevating operational security to a whole new level.
(6) Tool Adjustable, Pressure Limiting Valve in Connection Block: Unlock the ultimate in versatility and precision with adjustable settings across 63, 120, 210, 280, 315, 350, and 400 bar levels. This hallmark of adaptability is tailored to satisfy every hydraulic requirement. For seamless configurations, /NF signifies the absence of a pressure limiting valve, expertly crafted for HLPSV, ensuring flawless pressure management across a spectrum of applications.
(7) Product Series Classification - The Pinnacle of Engineering Excellence:;-2 2 Series; -3 3 Series; -5 5 Series; Each series is a marvel of engineering, meticulously designed to cater to every application, guaranteeing a product that aligns perfectly with your precise requirements.
(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 intermediate transition block ZPL 5S(V)/H hydraulic control shut-off valve, masterfully engineered for smooth and seamless integration.
(9)Directional valve block inflow controller options: Select from a superior array: 1, without inflow controller; 2, standard inflow controller; 4, an advanced 3-way flow controller for both inlet and outlet, crafted for the N 3/3-way valve; 5, enhanced inflow controller; 8, pre-selectable options, each promising precision and exceptional efficiency.
(10) Valve core function symbols: Explore a full suite of core functions: L, M, F, H, J, B, R, O, N, each meticulously designed to fulfill specific functional demands.
(11) Output flow code for ports A & B: Ensure peak performance with available maximum output flows: 3, 6, 10, 16, 25, 40, 63, 80, 120, 160, 210 L/min, each engineered for outstanding performance and reliability.
(12) Secondary pressure limitation options: Choose from: N, no pressure limiting protection; C, simultaneous pressure limitation of actuator ports A & B; A---B---, independent pressure limitation for ports A & B, all calibrated in bar, ensuring unwavering system safety.
(13) Function ON/OFF and pressure outlet options: Personalize with options such as: 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 and functionality.
(14) Operation modes: Opt for diverse operation modes: A(1,2), manual operation with optional long or short handle; E, electric proportional control; EA(1,2), a blend of electric proportional control and manual operation; D, electric switching value control; DA(1,2), a combination of electric switching value control and manual operation; M, manual friction positioning with a 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, designed for comprehensive and precise control.
(15) Ancillary block port sizes: Choose from versatile options: /2 G3/8; /3 G1/2; /4 G3/4; /5 G1, expertly crafted for seamless adaptability and integration.
(16) End plate options: Explore our expertly crafted end plate choices, each designed to meet your specific needs. E1 serves as the standard model, providing an external discharge of pilot oil alongside an external oil return control port T. E2 closely follows E1's design yet is enhanced with an extra port Y for added functionality. E3 stands out with its inclusion of a 2-position 3-way magnetic ball valve, which boosts your system's pressure to safety valve specifications when activated, ensuring a superior level of protection.
E4 presents a design akin to E1, yet it innovatively incorporates an internal discharge of pilot oil and a sealed port T, offering a compact and efficient solution. E5 replicates E2's configuration, also featuring internal discharge for seamless operation. E6 mirrors the advanced framework of E3, with each variant engineered to deliver sophisticated discharge control.
(17) Control voltage and anti-explosion cable options: Select from a robust array of secure and compatible control voltage choices such as G12-12VDC. These options are meticulously tailored for optimal safety and specialization, particularly suited for challenging and demanding environments.G24-24VDC; G24Ex-3m-24VDC; G12Ex-3m-12VDC; G24MA-3m-24VDC; G12bb621436
Since our groundbreaking inception in 2009, Jiangsu KM Hydraulic Control System Co., Ltd. has been a beacon of innovation and excellence within the hydraulic industry. As a proud subsidiary of the esteemed China Baoan Group (stock code: 000009), we are recognized as a prestigious national high-tech enterprise. Our core strength lies in the meticulous research, development, manufacturing, and sales of superior hydraulic components. Honored as a national 'specialized, refined, and innovative' small giant enterprise, we are unwavering in our dedication to technological advancement and outstanding quality. This relentless pursuit has firmly positioned us as leaders in the field.
Our flagship product, the enhanced Safety Atex Valve, particularly the load-sensitive proportional valve, embodies the zenith of advanced hydraulic system control. Masterfully engineered for construction machinery and heavy-duty equipment, this adaptable component is indispensable for critical applications such as emergency rescue operations, tunnel engineering, mining, and municipal service vehicles. We take immense pride in our strategic partnerships with numerous leading domestic manufacturers, contributing significantly to the localization of core hydraulic components for high-end mechanical equipment. Driven by our fundamental philosophy-'serving customers with technology, impressing customers with our attitude, and retaining customers with quality'-we are steadfast in our commitment to delivering unmatched products, services, and solutions. Our mission is to rise as a globally trusted supplier of outstanding hydraulic components, establishing new heights of excellence on a worldwide scale.
Inquiry:1. Can you tell us about the lead time for orders?
Response:The production lead time generally spans about one month following receipt of payment. Within this period, we engage in thorough preparations and enforce stringent quality control protocols, ensuring each product reaches you in pristine condition. Our unwavering dedication is to deliver an impeccable product that exceeds your expectations.
Inquiry:2. Is there a minimum order quantity requirement for LED lights?
Response: We are delighted to offer an exceptionally low minimum order quantity, enabling you to order as little as one piece for sample verification. This offers you the utmost convenience to start your projects with ease, perfectly aligning with your exclusive specifications.
Inquiry:3. What is the procedure to place an order for LED lights?
Response: Initiate the process by sharing your detailed requirements or intended applications with us. We will generate a customized quote just for you, whether based on your unique specifications or our expert recommendations. Once we finalize the drawings and receive your deposit, we'll proceed with formalizing the order and commencing production. We commit to adhering to every specification with precision, ensuring a seamless, bespoke solution designed just for you.drawing specifications,and submit a deposit to formalize the order. We will then coordinate production, assuring that each element is flawlessly executed for a seamless, customized solution.
Inquiry:4. Can my logo be printed on the product?
Response: Absolutely, this is entirely possible. Please ensure you notify us ahead of production and confirm the design based on the sample we provide. This ensures your branding is depicted with unmatched precision and excellence, perfectly embodying your identity.
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