Introducing our groundbreaking HLPSL and HLPSV load-sensitive proportional multi-way directional spool valves. These revolutionary engineering marvels are designed to seamlessly integrate pressure, flow, and directional control into a single, harmonious unit, guaranteeing unmatched performance and reliability. Typically composed of three essential functional modules - connecting blocks, directional valves, and end plates - these valves are meticulously crafted for incorporation into high-end hydraulic systems, pivotal in top-tier engineering machinery. They precisely govern 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. Furthermore, they enable multiple actuators to operate simultaneously under varying loads, providing unrivaled performance and versatility for any application.
The HLPSL valves are expertly tailored for constant displacement pump systems, ensuring steadfast and reliable operation. Conversely, 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 emerge as the premier solution for advanced hydraulic control requirements.
| 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 key to consistent and reliable performance.;
HLPSV: Variable Displacement Pump - Adaptability and flexibility at its finest.;
(2) Connection Block Ports P & R Specifications - Precision and reliability you can trust::
2-G3/8; Compact and efficient for streamlined operations.
3-G1/2; Robust and dependable.;
4-G3/4; Advanced connectivity for superior control.;
5, 55-G1; Offering a superior flow rate for high-demand applications.;
6-G1 1/4; Delivering unmatched performance in the field.;
(3) Additional Components and Specifications - Elevating system capabilities::
C,Standard Type - A dependable baseline for your needs.;
G,Throttle Valve (For HLPSL only) - Ensuring precision control.;
H,Fixed Differential Overflow Valve for Enhanced Circulating Pressure (~14 bar, HLPSL) - Optimized flow management to enhance performance.;
(4) Pilot Oil Circuit Pressure Options - Customizable pressure control for various applications:0 - No pressure reducing valve; 1 - Pressure reducing valve (20 bar); 2 - Pressure reducing valve (40 bar); Tailored solutions for your specific needs.
(5) 2/2-way Magnetic Ball Valve for System Unloading - Streamlined efficiency and control:C - No magnetic ball valve; F - Normally open magnetic ball valve, pressurizes pump when powered, unloads pump when unpowered; D - Normally closed magnetic ball valve, unloads pump when powered, pressurizes when unpowered;D/F - With pressure limiting valve for secondary pressure (F50) with specified pressure value; Advanced safety measures for secure operations.
(6) Tool Adjustable, Pressure Limiting Valve in Connection Block: Available with customizable settings at 63, 120, 210, 280, 315, 350, and 400 bar, ensuring superior pressure control tailored for diverse scenarios. For HLPSV, choose /NF for no pressure limiting valve.
(7) Product Series Classification - Identifying excellence:;-2 2 Series; -3 3 Series; -5 5 Series; Perfectly tailored for every application, ensuring adaptability and precision.
(8)Thread size of directional spool valve ports A & B:2-G3/8; 3-G1/2; 4-G3/4; 5-G1; Includes A, ancillary block or intermediate transition block ZPL 5S(V)/H hydraulic control shut-off valve for enhanced functionality.
(9)Directional valve block inflow controller options: 1, without inflow controller; 2, standard inflow controller; 4, ideal 3-way flow controllers for both inlet and outlet; 5, reinforced inflow controller; 8, pre-selectable for advanced control.
(10) Valve core function symbols: L, M, F, H, J, B, R, O, N;
(11) Output flow code for ports A & B: Offering a range of maximum output flows at 3, 6, 10, 16, 25, 40, 63, 80, 120, 160, 210 L/min, meeting diverse operational demands.
(12) Secondary pressure limitation options: N, no pressure limiting protection; C, simultaneous pressure limitation on actuator ports A & B; A---B---, separate pressure limitation for actuator ports A & B, in unit (bar).
(13) Function ON/OFF and pressure outlet options: N, without function ON/OFF and 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.
(14) Operation modes: A(1,2), manual operation with options for long or short handle; E, electric proportional control; EA(1,2), combining electric and manual control; D, electric switching value control; DA(1,2), electric switch control with manual options; M, manual friction positioning; H, pure hydraulic control (aligned ports); F, pure hydraulic control (perpendicular ports).
(15) Ancillary block port sizes are available in: /2 G3/8; /3 G1/2; /4 G3/4; /5 G1, ensuring versatile connectivity.
(16) End plate options for efficient operational flexibility: E1, standard with external pilot oil discharge; E2, similar with additional port Y; E3, equipped with 2-position 3-way magnetic ball valve. In power supply scenarios, system pressure effectively rises to safety levels.
E4, similar to E1, with internal pilot oil discharge; E5, similar to E2, with internal discharge capabilities; E6, similar to E3, offering sealed port T options.
(17) Control voltage and cable length options for anti-explosion type: G12-12VDC, designed for secure operations.G24-24VDC; G24Ex-3m-24VDC; G12Ex-3m-12VDC; G24MA-3m-24VDC; G12bb621436
Since our establishment in 2009, Jiangsu KM Hydraulic Control System Co., Ltd. has been a beacon of innovation and excellence in the hydraulic industry. As a subsidiary of the prestigious China Baoan Group (stock code: 000009), we are recognized as a national high-tech enterprise, acclaimed for our expertise in the research, development, manufacturing, and sales of premium hydraulic components. We proudly hold the title of a national 'specialized, refined, and innovative' small giant enterprise, a testament to our dedication to technological progress and superior quality. This unwavering commitment solidifies our position as leaders in our field.
Our premier product, the load-sensitive proportional valve, stands as the epitome of cutting-edge hydraulic system control. Meticulously engineered for construction machinery and heavy-duty equipment, this indispensable component is crucial in high-stakes scenarios such as emergency rescue operations, tunnel engineering, mining, and municipal service vehicles. We take great pride in our strategic alliances with numerous preeminent domestic manufacturers, making significant contributions to the localization of core hydraulic components for high-end mechanical equipment. Driven by our guiding principles-'serving customers with technology, impressing them with our attitude, and retaining them with quality'-we are unwavering in our pledge to provide exceptional products, services, and solutions. Our ambition is to rise as a globally trusted supplier of superior hydraulic components, setting new standards of excellence across the globe.
Question:1. What about the lead time?
Answer:The lead time for production is typically around one month following receipt of payment. This period allows us to undertake meticulous preparation and enforce stringent quality control measures. Every detail is taken care of to ensure your products are delivered flawlessly.
Question:2. Do you have any MOQ limit for LED light orders?
Answer: We offer an exceptionally low minimum order quantity, allowing you the freedom to order even a single piece for sample checking. This flexibility ensures that your specific needs are met perfectly, making it easier to start your projects seamlessly.
Question:3. How to proceed with an order for LED lights?
Answer: Start by informing us of your detailed requirements or applications. We will then provide you with a customized quote based on your needs or our expert recommendations. Once you confirm the drawings and place a deposit, we will formalize the order and arrange production. Every specification will be meticulously met, ensuring a seamless and tailored solution.drawings,and place a deposit to formalize the order. Finally, we will arrange production, ensuring that every specification is met to perfection, delivering a seamless and tailored solution.
Question:4. Is it OK to print my logo on the product?
Answer: Absolutely, it is possible. Simply inform us formally before production begins and confirm the design based on the sample we provide. This ensures that your branding is represented with utmost precision and quality.
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