Introducing our groundbreaking HLPSL and HLPSV load-sensitive proportional multi-way directional spool valves, where cutting-edge hydraulic engineering meets exceptional functionality. These revolutionary creations epitomize the zenith of hydraulic technology, masterfully weaving together pressure, flow, and directional control into a singular, harmonious masterpiece. This guarantees unparalleled performance and steadfast reliability across all applications. Typically composed of three essential functional modules - connecting blocks, directional valves, and end plates - these valves are meticulously designed for seamless integration into sophisticated hydraulic systems, essential for high-caliber engineering machinery. They precisely govern the movement direction and speed of hydraulic cylinders, motors, and other actuators, ensuring unmatched precision and control. Key highlights include a compact structure, superior energy efficiency, and the remarkable capability for stepless speed control. Furthermore, they empower multiple actuators to operate simultaneously under varying loads, offering unrivaled performance and versatility for any conceivable application.
The HLPSL valves are expertly tailored for constant displacement pump systems, ensuring steadfast and reliable operation across diverse settings. In contrast, 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 innovative engineering and energy-efficient design, HLPSV valves stand out as the premier solution for advanced hydraulic control requirements, offering a perfect synthesis 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, this component ensures your operations run smoothly and efficiently.;
HLPSV: Variable Displacement Pump - Exemplifying adaptability and flexibility, it offers 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, this port caters 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 - Elevating 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 with a pressure limiting valve for secondary pressure (F50), featuring a specified pressure value, this offers unparalleled advanced safety measures to secure and optimize operations efficiently.
(6) Tool Adjustable, Pressure Limiting Valve in Connection Block: This state-of-the-art component offers adjustable settings at 63, 120, 210, 280, 315, 350, and 400 bar levels, epitomizing versatility and precision. For those who desire simplicity, /NF denotes no pressure limiting valve, specifically designed for HLPSV, ensuring optimal pressure control across various scenarios, making it an indispensable asset for your hydraulic needs.
(7) Product Series Classification - Embodying the Pinnacle of Excellence and Innovation:;-2 2 Series; -3 3 Series; -5 5 Series; Each series meticulously tailors to every application, ensuring you receive a product that seamlessly meets your precise requirements, enhancing performance and reliability.
(8)Thread size of directional spool valve ports A & B: Perfectly engineered sizes: 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 crafted for seamless and efficient integration.
(9)Directional valve block inflow controller options available: Select from: 1, without inflow controller; 2, standard inflow controller; 4, advanced 3-way flow controller for both inlet and outlet, perfect for the N 3/3-way valve; 5, reinforced inflow controller; 8, pre-selectable options, each engineered to ensure precision, efficiency, and top-tier performance.
(10) Valve core function symbols: Discover an extensive array of core functions: L, M, F, H, J, B, R, O, N, each meticulously designed to fulfill specialized and unique functional requirements.
(11) Output flow code for ports A & B: Optimize efficiency with maximum output flows available: 3, 6, 10, 16, 25, 40, 63, 80, 120, 160, 210 L/min, each tailored meticulously for peak performance.
(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 measured in bar, ensuring robust and unparalleled system safety.
(13) Function ON/OFF and pressure outlet options: Customizable options to suit your needs include: 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, meticulously designed for exquisite precision control.
(14) Operation modes: Explore diverse operation modes available: 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, each 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 engineered for seamless adaptability and integration.
(16) End plate options: Discover a versatile array of tailor-made end plate selections designed to meet your specific needs: E1, the standard choice, features an external discharge of pilot oil and an external oil return control port T for seamless operations; E2 mirrors E1 but includes an additional port Y for expanded functionality; E3 incorporates a 2-position 3-way magnetic ball valve, which significantly elevates system pressure to safety valve levels during power supply, ensuring optimal control and reliability.
E4, crafted similarly to E1, boasts internal discharge of pilot oil, securely sealing port T for enhanced safety; E5, akin to E2, also features internal discharge, offering impeccable control; E6, modeled after E3, guarantees refined and sophisticated discharge control, catering to advanced operational requirements.
(17) Control voltage and anti-explosion type cable length options: Choose from our meticulously curated selection, including G12-12VDC, which assures unmatched safety and compatibility tailored for specialized applications, meeting the most stringent standards.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: 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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