Introducing our groundbreaking HLPSL and HLPSV load-sensitive proportional multi-way directional spool valves. These revolutionary engineering marvels 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 - It's the key for achieving consistent and reliable performance.;
HLPSV: Variable Displacement Pump - Reflects adaptability at its finest, ensuring optimal performance in every situation.;
(2) Connection Block Ports P & R Specifications - Precision and reliability you can trust::
2-G3/8; Compact, efficient and designed for streamlined operations.
3-G1/2; Sturdy and robust, ensuring dependability.;
4-G3/4; Offers advanced connectivity for seamless integration.;
5, 55-G1; Guarantees superior flow rate for high efficiency.;
6-G1 1/4; Unleashes unmatched performance for demanding applications.;
(3) Additional Components and Specifications - Enhancing system capabilities with precision and reliability::
C,Standard Type - Provides a dependable baseline for consistent results.;
G,Throttle Valve (For HLPSL only) - Offers precise control for enhanced performance.;
H,Fixed Differential Overflow Valve for Enhanced Circulating Pressure (~14 bar, HLPSL) - Ensures optimized flow management.;
(4) Pilot Oil Circuit Pressure Options - Customizable pressure control tailored to your unique needs:0 - No pressure reducing valve; 1 - Pressure reducing valve (20 bar); 2 - Pressure reducing valve (40 bar); Specifically tailored for your unique requirements.
(5) 2/2-way Magnetic Ball Valve for System Unloading - Streamlined efficiency for enhanced operation: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;./F. . , With pressure limiting valve for secondary pressure (F50) with specified pressure value; Provides advanced safety measures and greater control.
(6) Tool Adjustable, Pressure Limiting Valve in Connection Block: Settings available at 63, 120, 210, 280, 315, 350, 400 bar; /NF: No pressure limiting valve (HLPSV only); Ensures optimal pressure control at all times.
(7) Product Series Classification - Identifying excellence and unparalleled quality:;-2 2 Series; -3 3 Series; -5 5 Series; Tailored for every unique and demanding application.
(8)Thread size of directional spool valve ports A & B, engineered for precision:2-G3/8; 3-G1/2; 4-G3/4; 5-G1; A, with the ancillary block or intermediate transition block ZPL 5S(V)/H hydraulic control shut-off valve for supreme functionality;
(9)Directional valve block inflow controller options: 1, without inflow controller for streamlined simplicity; 2, standard inflow controller for basic efficiency; 4, innovative 3-way flow controllers for both inlet and outlet (perfectly suited for N 3/3-way valve); 5, strengthened inflow controller for enhanced performance; 8, pre-selectable for user-defined customization;
(10) Valve core function symbols, offering versatile solutions: L, M, F, H, J, B, R, O, N;
(11) Output flow code for ports A & B: Available maximum output flows, precisely engineered to cater to different needs: 3, 6, 10, 16, 25, 40, 63, 80, 120, 160, 210 (L/min);
(12) Secondary pressure limitation options: N, ensuring operation without pressure limiting protection; C, limit the pressure of actuator ports A & B simultaneously for safety; A---B---, limit the pressure of actuator ports A & B separately, ensuring precise operation, unit (bar);
(13) Function ON/OFF and pressure outlet options: N, designed without function ON/OFF and pressure outlet; X C-type pressure limitation for controlled applications; S/S1 AB-type pressure limitation; A, featuring electrical ON/OFF on side A; B, featuring electrical ON/OFF on side B;
(14) Operation modes: A(1,2), manual operation with customizable long handle (1=without handle, 2=with short handle); E, electric proportional control for advanced precision; EA(1,2), electric proportional control combined with manual operation (1=without handle, 2=with short handle); D, electric switching value control; DA(1,2), electric switching value control with manual operation (1=without handle, 2=with short handle); M, manual friction positioning with long handle for robust control; H, pure hydraulic control (two pilot oil ports align with oil ports A and B); F, pure hydraulic control (two pilot oil ports positioned perpendicular to oil ports A and B and outward respectively);
(15) Ancillary block port sizes for tailored connectivity: /2 G3/8; /3 G1/2; /4 G3/4; /5 G1;
(16) End plate options designed for advanced versatility: E1, standard end plate with external discharge of pilot oil, connecting oil return control port T externally; E2, similar to E1, offers additional features with external discharge of pilot oil and port Y attached; E3, external discharge of pilot oil with a 2-position 3-way magnetic ball valve mounted; in power supply scenarios, the system pressure elevates to the safety valve pressure;
E4, similar to E1, featuring internal discharge of pilot oil with the option to seal port T; E5, similar to E2, with internal discharge of pilot oil, allowing port T sealing; E6, similar to E3, with internal discharge of pilot oil, providing T port sealing options;
(17) Control voltage and the length of anti-explosion type cable options, catering to all safety requirements: G12-12VDC;G24-24VDC; G24Ex-3m-24VDC; G12Ex-3m-12VDC; G24MA-3m-24VDC; G1251de8e98
Since our inception in 2009, Jiangsu KM Hydraulic Control System Co., Ltd. has been a beacon of innovation and excellence in the hydraulic industry. As a respected subsidiary of China Baoan Group (stock code: 000009), we proudly operate as a national high-tech enterprise, celebrated for our pioneering spirit. Our expertise encompasses the intricate research, development, manufacturing, and distribution of superior hydraulic components. Our recognition as a national 'specialized, refined, and innovative' small giant enterprise highlights our steadfast commitment to technological progress and unmatched quality. This unwavering dedication elevates us as leaders in the industry.
Our flagship product, the Load Sensitive Proportional Valve, represents the zenith of sophisticated hydraulic system control. Purposefully engineered for construction machinery and heavy-duty applications, this dynamic component is essential for critical operations including emergency rescue, tunnel engineering, mining, and service vehicles in municipalities. We are profoundly proud of our strategic partnerships with prominent domestic manufacturers, central to our mission of localizing core hydraulic components for high-end mechanical equipment. Adhering to our core philosophy-'serving customers with technology, impressing customers with our attitude, and retaining customers with quality'-we are steadfast in our mission to provide extraordinary products, services, and solutions. Our vision is to emerge as a globally esteemed provider of premier hydraulic components, establishing unparalleled standards of excellence worldwide.
Customer Inquiry:1. What about the lead time?
Our Response: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.
Customer Inquiry:2. Do you have any MOQ limit for LED light orders?
Our Response: 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.
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Our Response: 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.
Customer Inquiry:4. Is it OK to print my logo on the product?
Our Response: 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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