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 singular, harmonious masterpiece. This guarantees unrivaled performance and reliability across all applications. 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, indispensable for top-tier 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 capability for stepless speed control. Beyond this, they empower multiple actuators to operate simultaneously under varying loads, delivering unmatched performance and versatility for any application.
The HLPSL valves are expertly crafted for constant displacement pump systems, ensuring steadfast and reliable operation in every setting. 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 cutting-edge engineering and energy-efficient design, HLPSV valves stand out as the premier solution for advanced hydraulic control needs, offering an impeccable 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 - This is the bedrock of steadfast performance, ensuring seamless and efficient operations across the board.;
HLPSV: Variable Displacement Pump - A paragon of flexibility, it offers unmatched versatility to accommodate diverse operational requirements.;
(2) Connection Block Ports P & R Specifications - Merging precision with reliability to guarantee dependable operations::
2-G3/8; Optimized for compact efficiency, it facilitates smooth and uninterrupted operational flows.
3-G1/2; Engineered for strength and reliability, forming a solid base for your system.;
4-G3/4; Ensures advanced connectivity, granting superior control and seamless system integration.;
5, 55-G1; With high flow capacity, ideal for demanding applications, ensuring robust performance.;
6-G1 1/4; Offering exceptional performance, crafted to excel in challenging conditions.;
(3) Additional Components and Specifications - Elevating lifting system capabilities to unprecedented levels::
C,Standard Type - A dependable and reliable baseline, tailored to meet your essential operational demands.;
G,Throttle Valve (For HLPSL only) - Guarantees precision control, thereby enhancing overall system efficiency.;
H,Fixed Differential Overflow Valve for Enhanced Circulating Pressure (~14 bar, HLPSL) - Optimizes flow management, driving exceptional performance and reliability.;
(4) Pilot Oil Circuit Pressure Options - Delivering tailored pressure control solutions for diverse applications:0 - No pressure reducing valve; 1 - Pressure reducing valve (20 bar); 2 - Pressure reducing valve (40 bar); Ensuring customized solutions that meet your operational needs impeccably.
(5) 2/2-way Magnetic Ball Valve for System Unloading - Streamlining efficiency and optimizing control:C - No magnetic ball valve; F - Normally open magnetic ball valve, pressurizing the pump when powered, unloading it when not; D - Normally closed magnetic ball valve, unloading the pump when powered, pressurizing it otherwise;D/F - Featuring a state-of-the-art pressure limiting valve for secondary pressure (F50) with a specified pressure value, this ensures an unparalleled level of safety and reliability for operations, elevating security standards in every application.
(6) Tool Adjustable, Pressure Limiting Valve in Connection Block: This masterpiece of engineering offers adjustable settings at 63, 120, 210, 280, 315, 350, and 400 bar levels, epitomizing versatility and precision. For those who appreciate simplicity, /NF denotes the absence of a pressure limiting valve, specifically crafted for HLPSV. This feature is crucial for maintaining optimal pressure across various scenarios, making it a cornerstone of your hydraulic operations.
(7) Product Series Classification - Embodying the epitome of excellence and innovation:;-2 2 Series; -3 3 Series; -5 5 Series; Each series is meticulously crafted to meet the demands of diverse applications, ensuring you receive a tailor-made product that aligns perfectly with your exact specifications.
(8)Thread size for 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, meticulously designed for seamless and flawless integration.
(9)Directional valve block inflow controller options: Choose 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 crafted to ensure precision, efficiency, and superior performance.
(10) Valve core function symbols: Discover an extensive selection of core functions: L, M, F, H, J, B, R, O, N, each meticulously engineered to meet specific functional requirements with utmost efficiency.
(11) Output flow code for ports A & B: Achieve peak efficiency with maximum output flows available in: 3, 6, 10, 16, 25, 40, 63, 80, 120, 160, 210 L/min, crafted for exceptional performance.
(12) Secondary pressure limitation options: Opt between: 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 maximum and robust system safety.
(13) Function ON/OFF and pressure outlet options: Tailored options include: N, without function ON/OFF or pressure outlet; X, C type pressure limitation; S/S1, AB type pressure limitation; A, electric ON/OFF on side A; B, electric ON/OFF on side B, each designed for unparalleled precision control.
(14) Operation modes: Experience a wide array of operation modes: A(1,2), manual operation with either 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), 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, engineered for comprehensive and advanced control.
(15) Ancillary block port sizes: Choose from versatile options: /2 G3/8; /3 G1/2; /4 G3/4; /5 G1, meticulously crafted for seamless adaptability and integration.
(16) End Plate Options: Our tailored end plate choices provide the ultimate flexibility and precision. Choose E1, the standard option with external discharge of pilot oil and an external oil return control port T. For enhanced functionality, consider E2, similar to E1 but with an additional port Y to expand capabilities. Alternatively, E3 comes equipped with a sophisticated 2-position 3-way magnetic ball valve, designed to elevate system pressure to safety valve levels when power is supplied, offering unmatched control and reliability.
E4 offers a unique design akin to E1 but with internal discharge of pilot oil, sealing port T to ensure tight control. E5 mirrors E2 in functionality, with the added benefit of internal discharge for seamless operation. For top-tier precision, choose E6, similar to E3, each meticulously engineered to guarantee sophisticated discharge control that meets the highest standards of safety and efficiency.
(17) Control Voltage & Anti-Explosion Type Cable Options: Ensure unmatched safety and compatibility with our specialized applications by selecting from our range of voltage options. Choose G12-12VDC, designed for optimal performance and reliability in demanding environments.For enhanced power needs, select G24.-Our options include: 24VDC for robust performance; G24Ex-3m-24VDC for extended cable needs; G12Ex-3m-12VDC for lower voltage applications; G24MA-3m-24VDC for advanced machinery compatibility. Each is carefully crafted to meet your project's exact specifications, providing peace of mind and unparalleled efficiency.Choose 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.
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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.
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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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