Introducing our pioneering HLPSL and HLPSV load-sensitive proportional multi-way directional spool valves. These exceptional engineering marvels epitomize the zenith of hydraulic innovation, flawlessly merging pressure, flow, and directional control into a single, cohesive unit. This ensures extraordinary performance and dependability in every application. Typically consisting of three integral functional modules - connecting blocks, directional valves, and end plates - these valves are expertly designed for seamless integration into high-end hydraulic systems, essential for elite engineering machinery. They meticulously manage the movement direction and speed of hydraulic cylinders, motors, and other actuators, delivering unparalleled precision and control. Key highlights include a compact structure, superior energy efficiency, and the capability for stepless speed control. Moreover, they empower multiple actuators to operate simultaneously under varying loads, offering unmatched performance and adaptability for any application.
The HLPSL valves are meticulously tailored for constant displacement pump systems, ensuring unwavering and dependable operation in every environment. On the contrary, the HLPSV valves are ingeniously engineered for variable pump systems. While HLPSV valves might have a marginally slower response time, they excel in providing outstanding energy-saving performance, establishing them as the ultimate choice for applications where efficiency is of utmost importance. With their state-of-the-art engineering and energy-efficient design, HLPSV valves distinguish themselves as the leading solution for advanced hydraulic control needs, offering an impeccable 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
HLPSL: Constant Displacement Pump - The cornerstone of consistent and unwavering performance, ensuring your operations run smoothly and efficiently.;
HLPSV: Variable Displacement Pump - Exemplifying adaptability and flexibility, offering unparalleled versatility to meet diverse operational needs.;
(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.
3-G1/2; Built for robustness and dependability, providing a solid foundation for your system.;
4-G3/4; Offering advanced connectivity, delivering superior control and enhanced system integration.;
5, 55-G1; With a superior flow rate, this option is perfect for high-demand applications, ensuring consistent performance.;
6-G1 1/4; Providing unmatched performance, designed to excel in the field and overcome challenges.;
(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.;
G,Throttle Valve (For HLPSL only) - Ensures precision in control, enhancing overall system efficiency.;
H,Fixed Differential Overflow Valve for Enhanced Circulating Pressure (~14 bar, HLPSL) - Optimizes flow management, driving superior performance and dependability.;
(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.
(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;D/F - Comes complete with a pressure limiting valve for secondary pressure (F50), featuring a specified pressure value. This sophisticated mechanism ensures advanced safety measures are in place, securing operations with unmatched reliability.
(6) Tool Adjustable, Pressure Limiting Valve in Connection Block: Empowering your hydraulic systems with adjustable settings at 63, 120, 210, 280, 315, 350, and 400 bar levels, this component epitomizes versatility and precision. For those who prefer simplicity, opt for /NF, which indicates no pressure limiting valve, specifically crafted for HLPSV. This feature guarantees optimal pressure control across diverse scenarios, making it an indispensable asset for your hydraulic applications.
(7) Product Series Classification - Embodying the Pinnacle of Excellence:;-2 2 Series; -3 3 Series; -5 5 Series; Each series is meticulously engineered to adapt to every application, ensuring you receive a product that meets your precise requirements with unwavering precision.
(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, designed for effortless and seamless integration.
(9)Directional valve block inflow controller options: Choose from: 1, without inflow controller; 2, standard inflow controller; 4, an advanced 3-way flow controller for both inlet and outlet, ideally suited for the N 3/3-way valve; 5, reinforced inflow controller; 8, pre-selectable options, each promising precision and efficiency tailored to your unique needs.
(10) Valve core function symbols: Discover an extensive array of core functions: L, M, F, H, J, B, R, O, N, each expertly crafted to fulfill unique functional requirements, ensuring your system operates with peak effectiveness.
(11) Output flow code for ports A & B: Elevate your operational efficiency with available maximum output flows: 3, 6, 10, 16, 25, 40, 63, 80, 120, 160, 210 L/min, meticulously tailored to guarantee optimal performance across various applications.
(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, all measured in bar, offering robust system safety and reliability.
(13) Function ON/OFF and pressure outlet options: Personalize your control settings with options including: 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 designed for precise and custom control.
(14) Operation modes: Explore diverse operation modes: A(1,2), manual operation with your choice of long or short handle; E, electric proportional control; EA(1,2), a synthesis of electric proportional control and manual operation; D, electric switching value control; DA(1,2), integrated 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, meticulously crafted for comprehensive and adaptive control.
(15) Ancillary block port sizes: Choose from versatile options: /2 G3/8; /3 G1/2; /4 G3/4; /5 G1, thoughtfully engineered for seamless adaptability and integration across various applications.
(16) End Plate Options: Discover our meticulously crafted end plate choices tailored to meet diverse needs, including: E1, the standard option featuring an external discharge of pilot oil with a specialized external oil return control port T; E2, similar to E1 but enhanced with an additional port Y for added functionality; E3, equipped with a 2-position 3-way magnetic ball valve, ensuring system pressure elevates to safety valve levels during power supply, providing unparalleled reliability.
E4 provides the attributes of E1 with an innovative twist: the internal discharge of pilot oil and a sealed port T for optimal efficiency; E5 mirrors E2's features while incorporating internal discharge capabilities; E6, echoing E3's design, guarantees advanced discharge control, setting new standards for performance.
(17) Control Voltage and Anti-Explosion Cable Length Options: Choose from our premium selections such as G12-12VDC, designed to prioritize safety and ensure seamless compatibility with specialized applications.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 illuminated the hydraulic industry with groundbreaking innovation and unparalleled excellence. As a prestigious subsidiary of the esteemed China Baoan Group (stock code: 000009), we proudly stand as a distinguished national high-tech enterprise. Our expertise lies in the meticulous research, development, manufacturing, and sales of premium hydraulic components. Our esteemed designation as a national 'specialized, refined, and innovative' small giant enterprise underscores our unwavering commitment to technological advancement and superior quality. This relentless dedication positions us as frontrunners in our field.
Our flagship product, the load-sensitive proportional valve, epitomizes the pinnacle of advanced hydraulic system control. Expertly engineered for construction machinery and heavy-duty equipment, this versatile component is vital for high-stakes applications such as emergency rescue operations, tunnel engineering, mining, and municipal service vehicles. We take immense pride in our strategic collaborations with numerous leading domestic manufacturers, playing a pivotal role in localizing 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 resolute in our commitment to delivering exceptional products, services, and solutions. Our mission is to ascend as a globally trusted supplier of premier hydraulic components, setting new benchmarks of excellence worldwide.
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: Begin the journey by communicating your detailed requirements or desired applications with us. We will craft a tailored quote just for you, informed by your specific needs or our expert recommendations. Once the drawings are approved and a deposit is placed, we will confirm the order and initiate production. We ensure every specification is meticulously followed, offering you a flawless 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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