Introducing our groundbreaking HLPSL and HLPSV load-sensitive proportional multi-way directional spool valves. These revolutionary engineering creations stand as the apex of hydraulic innovation, artfully integrating pressure, flow, and directional control into an unparalleled cohesive marvel. This ensures unmatched performance and reliability across every application. Typically composed of three critical functional modules - connecting blocks, directional valves, and end plates - these precision-engineered valves are designed for seamless integration into high-end hydraulic systems, pivotal for superior engineering machinery. They precisely manage the movement direction and speed of hydraulic cylinders, motors, and other actuators, offering unparalleled precision and control. Key highlights include a compact structure, exceptional energy efficiency, and the capability for stepless speed control. Moreover, they enable multiple actuators to operate concurrently under various loads, delivering extraordinary performance and versatility for any application.
The HLPSL valves are expertly designed for constant displacement pump systems, ensuring steadfast and reliable operation in any environment. In contrast, the HLPSV valves are ingeniously crafted for variable pump systems. While HLPSV valves might demonstrate a marginally slower response, they excel in providing outstanding energy-saving performance, positioning them as the optimal choice for scenarios where efficiency is critical. With their state-of-the-art engineering and energy-efficient design, HLPSV valves rise as the premier solution for advanced hydraulic control needs, offering an ideal combination 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 - Unravel the backbone of efficient operations with our essential codes that promise streamlined connectivity and superior functionality.
HLPSL: Constant Displacement Pump - The cornerstone of unwavering reliability, this pump is engineered to deliver constant, efficient performance that ensures your systems operate with unmatched smoothness and precision. Trust in its superior dependability to keep your operations seamless.;
HLPSV: Variable Displacement Pump - A masterclass in adaptability and versatility, this pump offers extraordinary flexibility, easily accommodating a wide spectrum of operational requirements. It is perfectly tailored to handle the dynamic demands of modern systems, offering seamless transitions and superior control.;
(2) Connection Block Ports P & R Specifications - Where precision meets reliability, these specifications forge a robust framework for flawless operational performance. Each component is meticulously crafted to enhance reliability and efficiency across applications.:
2-G3/8; Designed for compact proficiency, this connection supports seamless operational flows. Expertly engineered for precision, it guarantees optimal performance even in the most confined spaces.
3-G1/2; Robust and reliable, this connection provides a solid foundation for your system's structural integrity. It is built to last, delivering unwavering durability even under the most demanding conditions.;
4-G3/4; Featuring cutting-edge connectivity, this component offers superior control and enhanced integration, combining sophistication and efficiency to elevate your system's operational capabilities.;
5, 55-G1; With superior flow rates, this connection is ideal for high-demand applications, ensuring consistent, reliable performance. It is designed for excellence, effortlessly tackling high-pressure challenges.;
6-G1 1/4; This connection delivers unmatched performance, expertly crafted to excel in demanding environments and overcome challenges with ease. It sets new standards in power and performance.;
(3) Additional Components and Specifications - Elevate your system's capabilities to new heights with advanced components that redefine operational excellence and unleash the full potential of your business.:
C,Standard Type - A foundation of reliability, meticulously designed to meet critical operational needs. It provides unwavering support and unmatched dependability to empower your system with confidence.;
G,Throttle Valve (For HLPSL only) - Ensures precision control and enhances overall system efficiency. It finely tunes operations for maximum effectiveness and optimal performance.;
H,Fixed Differential Overflow Valve for Enhanced Circulating Pressure (~14 bar, HLPSL) - Maximizes flow management to deliver extraordinary performance and reliability, pushing the limits of conventional systems.;
(4) Pilot Oil Circuit Pressure Options - Providing bespoke solutions for precision pressure control across diverse applications. Tailored to align perfectly with your operational goals, it offers unparalleled precision.0 - No pressure reducing valve; 1 - Pressure reducing valve (20 bar); 2 - Pressure reducing valve (40 bar); Providing tailored solutions to seamlessly meet your specific operational demands. Customizable configurations to ensure you achieve your desired outcomes with ease.
(5) 2/2-way Magnetic Ball Valve for System Unloading - Enhancing efficiency and control: Designed to optimize your system's performance, delivering unparalleled control and superior effectiveness.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; Offering precision tuning for unparalleled system efficiency.D/F - Presenting a state-of-the-art, meticulously precision-engineered pressure limiting valve for secondary pressure (F50), crafted with remarkable precision to maintain a specifically defined pressure value. This engineering marvel is designed to significantly enhance advanced safety measures, thereby optimizing operational security and reliability to unparalleled heights.
(6) Tool Adjustable, Pressure Limiting Valve in Connection Block: Experience the ultimate in versatility and precision with adjustable settings ranging across 63, 120, 210, 280, 315, 350, and 400 bar levels. This component epitomizes adaptability, seamlessly meeting every hydraulic requirement. The /NF configuration offers systems without a pressure limiting valve, expertly crafted for HLPSV, delivering unmatched pressure control across diverse applications.
(7) Product Series Classification - The Epitome of Engineering Excellence:;-2 2 Series; -3 3 Series; -5 5 Series; Each series represents a masterclass in design, skillfully conceived to address every application, ensuring you acquire a product that seamlessly aligns with your specific 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, skillfully engineered for flawless and seamless integration.
(9)Directional valve block inflow controller options: Choose from a comprehensive array of options: 1, without inflow controller; 2, standard inflow controller; 4, advanced 3-way flow controller for both inlet and outlet, tailored for the N 3/3-way valve; 5, enhanced inflow controller; 8, pre-selectable options, each offering precision and exceptional efficiency.
(10) Valve core function symbols: Explore an extensive collection of core functions: L, M, F, H, J, B, R, O, N, each meticulously crafted to meet specific functional requirements.
(11) Output flow code for ports A & B: Achieve peak efficiency with available maximum output flows: 3, 6, 10, 16, 25, 40, 63, 80, 120, 160, 210 L/min, each designed for supreme performance and dependability.
(12) Secondary pressure limitation options: Select from: N, no pressure limiting protection; C, concurrent pressure limitation of actuator ports A & B; A---B---, independent pressure limitation for ports A & B, all meticulously measured in bar to ensure uncompromising system safety.
(13) Function ON/OFF and pressure outlet options: Elevate your control capabilities with our customizable options, engineered for precision. Choose N for setups without ON/OFF features or pressure outlets; opt for X with C-type pressure limitation; select S/S1 for AB-type limitation; or choose A for electrical ON/OFF on side A or B for side B. Each option is meticulously crafted to enhance performance and control.
(14) Operation modes: Experience a spectrum of operation modes tailored to your needs: A(1,2) offers manual control with variable handle lengths; E provides electric proportional control; EA(1,2) combines electric and manual operation; D delivers electric switching value control; while DA(1,2) merges switching control with manual operation. Choose M for manual friction positioning with a long handle, H for pure hydraulic control aligning pilot oil ports with A and B, or F for hydraulic control with perpendicular pilot oil ports. Each option is expertly designed for comprehensive and precise control.
(15) Ancillary block port sizes: Embrace versatility with our expertly crafted port options: /2 G3/8, /3 G1/2, /4 G3/4, /5 G1. Each option is meticulously engineered for seamless adaptability, ensuring flawless integration across various systems to deliver unmatched efficiency and optimal performance.
(16) End plate options: Explore our sophisticated end plate designs: E1 serves as a standard with external discharge of pilot oil and return control port T. E2 enhances E1 with port Y for added flexibility. E3 introduces a 2-position, 3-way magnetic ball valve for elevating system pressure to safety levels when activated, ensuring peak performance and reliability.
E4 builds on E1's foundation, integrating an internal discharge of pilot oil and a sealed port T for superior efficiency. E5 adapts E2 with an internal discharge, preserving its robust features. E6 mirrors E3's sophisticated structure, offering advanced discharge control, tailored to meet complex system demands with precision.
(17) Control voltage and anti-explosion cable options: Select from our dependable and secure range, including the G12-12VDC, crafted for safety and reliability in even the most challenging environments. Our options guarantee specialization and security, meeting the demands of rigorous applications.G24-24VDC; G24Ex-3m-24VDC; G12Ex-3m-12VDC; G24MA-3m-24VDC; G12bb621436
Since its establishment in 2009, Jiangsu KM Hydraulic Control System Co., Ltd. has been celebrated as a shining beacon of both innovation and excellence within the dynamic hydraulic industry. Proudly functioning as a prestigious subsidiary of the esteemed China Baoan Group (stock code: 000009), our company is heralded as a national high-tech enterprise, reflecting our unwavering dedication to technological advancement and superior quality. Our expertise is second to none, encompassing the intricate research, advanced development, precise manufacturing, and strategic sales of premium hydraulic components. Acknowledged as a national 'specialized, refined, and innovative' small giant enterprise, we remain steadfast in our commitment to excellence, continually solidifying our leadership and influence in the field.
Our flagship creation, the enhanced Safety Atex Valve, embodies the pinnacle of innovative hydraulic system control solutions. This meticulously engineered component is crafted for seamless integration into construction machinery and heavy-duty equipment, playing an indispensable role in critical applications such as emergency rescue operations, tunnel engineering, mining, and municipal service vehicles. We take immense pride in our strategic alliances with preeminent domestic manufacturers, propelling the localization of core hydraulic components for high-end mechanical equipment to new heights. Guided by our core philosophy-'serving customers with technology, impressing customers with our attitude, and retaining customers with quality'-we remain unwavering in our quest to deliver exceptional products, services, and solutions. Our mission is to emerge as a globally trusted supplier of premier hydraulic components, continually setting new standards of excellence on the world stage.
Question:1. What about the lead time?
Answer:Typically, the lead time for production spans approximately one month after payment is received. During this timeframe, we undertake meticulous preparations and uphold rigorous quality control processes, ensuring that each product is delivered to you in impeccable condition. Achieving your utmost satisfaction with our flawless delivery remains our primary commitment.
Question:2. Do you have any MOQ limit for LED light orders?
Answer: We proudly offer a remarkably low minimum order quantity, granting you the convenience of ordering as little as a single piece for sample verification. This flexibility allows you to initiate your projects with utmost ease and precision, effortlessly accommodating your exclusive requirements.
Question:3. How to proceed with an order for LED lights?
Answer: Begin the process by communicating your detailed requirements or intended applications to us. We will then craft a tailored quote specifically for you, either based on your unique needs or through our seasoned advice. Once the drawings are finalized and a deposit is made, we will formalize the order and initiate production. We promise adherence to every specification with precision, ensuring a seamless and bespoke solution just for you.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 feasible. Kindly ensure that you formally notify us prior to the commencement of production and confirm the design based on the sample we provide. This guarantees that your branding is represented with unparalleled precision and excellence, perfectly capturing your identity.
Audited Supplier 
){kind=link}