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 - The cornerstone of consistent and reliable performance.;
HLPSV: Variable Displacement Pump - The epitome of adaptability and precision.;
(2) Connection Block Ports P & R Specifications - Experience precision you can rely on::
2-G3/8; Compact yet remarkably efficient.
3-G1/2; Robust and unfailingly reliable.;
4-G3/4; For advanced and seamless connectivity.;
5, 55-G1; Delivers superior flow rate.;
6-G1 1/4; Ensures unmatched performance.;
(3) Additional Components and Specifications - Elevating system capabilities to new heights::
C,Standard Type - A dependable and solid baseline.;
G,Throttle Valve (For HLPSL only) - Offering precision control.;
H,Fixed Differential Overflow Valve for Enhanced Circulating Pressure (~14 bar, HLPSL) - Optimized for superior flow management.;
(4) Pilot Oil Circuit Pressure Options - Tailored and customizable pressure control solutions:0 - No pressure reducing valve; 1 - Pressure reducing valve (20 bar); 2 - Pressure reducing valve (40 bar); Customized to suit your specific needs.
(5) 2/2-way Magnetic Ball Valve for System Unloading - Ensuring streamlined efficiency and advanced control:C - No magnetic ball valve; F - Normally open magnetic ball valve, pressurizes pump when powered, unloads when unpowered; D - Normally closed magnetic ball valve, unloads pump when powered, pressurizes when unpowered; D./F. . , Includes pressure limiting valve for secondary pressure (F50) with specified pressure value, delivering advanced safety measures.
(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); Ensuring optimal and precise pressure control.
(7) Product Series Classification - Identifying excellence: Step into a world of precision and high-performance with the Proportional Valve, where every product series is a symbol of innovation and dedication to mining equipment control and safety.;-2 2 Series; -3 3 Series; -5 5 Series; Tailored for every application. Discover a series perfectly crafted to meet diverse needs, offering unparalleled versatility and adaptability in every usage scenario.
(8)Thread size of directional spool valve ports A & B: Experience seamless integration with these meticulously designed thread sizes, ensuring flawless performance and connectivity.2-G3/8; 3-G1/2; 4-G3/4; 5-G1; A, ancillary block or intermediate transition block ZPL 5S(V)/H hydraulic control shut-off valve; Offering a range of sizes to cater to specific engineering demands for ultimate precision in hydraulic control.
(9)Directional valve block inflow controller options: 1, without inflow controller; 2, standard inflow controller; 4, 3-way flow controllers for both inlet and outlet (ideal for N 3/3-way valve); 5, strengthened inflow controller; 8, pre-selectable; Customize your system with options that enhance control precision and workflow efficiency.
(10) Valve core function symbols: L, M, F, H, J, B, R, O, N; Each symbol represents core functionality designed to meet intricate operational requirements.
(11) Output flow code for ports A & B: Available maximum output flows: 3, 6, 10, 16, 25, 40, 63, 80, 120, 160, 210 (L/min); Delivering optimal flow rates tailored to your exact operational needs, ensuring efficiency.
(12) Secondary pressure limitation options: N, no pressure limiting protection; C, limit the pressure of actuator ports A & B simultaneously; A---B---, limit the pressure of actuator ports A & B separately, unit (bar); Choose from a multitude of pressure options for heightened safety and control.
(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; Designed to offer unmatched configurability, these options cater to specific operational controls and safety.
(14) Operation modes: A(1,2), manual operation with long handle (1=without handle, 2=with short handle); E, electric proportional control; EA(1,2), electric proportional control and manual operation (1=without handle, 2=with short handle); D, electric switching value control; DA(1,2), electric switching value control and manual operation (1=without handle, 2=with short handle); M, manual friction positioning with long handle; H, pure hydraulic control (two pilot oil ports align with oil ports A and B); F, pure hydraulic control (two pilot oil ports are perpendicular to oil ports A and B and outward respectively); Offering a comprehensive array of operation modes for tailored performance and user convenience.
(15) Ancillary block port sizes: /2 G3/8; /3 G1/2; /4 G3/4; /5 G1; Precisely engineered ancillary block ports ensure seamless adaptability and integration into complex systems.
(16) End plate options: E1, standard end plate, external discharge of pilot oil, connecting oil return control port T externally; E2, similar to E1, external discharge of pilot oil, port Y is additionally attached; E3, external discharge of pilot oil, a 2-position 3-way magnetic ball valve is mounted; in power supply scenarios, the system pressure rises to the safety valve pressure; E4, similar to E1, internal discharge of pilot oil, port T can be sealed; E5, similar to E2, internal discharge of pilot oil, port T can be sealed; E6, similar to E3, internal discharge of pilot oil, port T can be sealed; These versatile end plate options are crafted for safety and operational efficiency, ensuring sustained system integrity.
E4, similar to E1, internal discharge of pilot oil, port T can be sealed; E5, similar to E2, internal discharge of pilot oil, port T can be sealed; E6, similar to E3, internal discharge of pilot oil, port T can be sealed; Engineered for excellence, these options offer secure and reliable discharge methods.
(17) Control voltage and the length of anti-explosion type cable options: G12-12VDC; Offering robust control voltage options designed to withstand demanding environments with enhanced safety features.G24-24VDC; G24Ex-3m-24VDC; G12Ex-3m-12VDC; G24MA-3m-24VDC; G Engineered to provide reliable and consistent power for high-performance operations.123d8c99f0
Since our foundation in 2009, Jiangsu KM Hydraulic Control System Co., Ltd. has been a beacon of groundbreaking innovation and unmatched excellence in the hydraulic industry. As a proud subsidiary of the renowned China Baoan Group (stock code: 000009), we have earned our reputation as a distinguished national high-tech enterprise, expertly specializing in the meticulous research, development, manufacturing, and sales of top-tier hydraulic components. Our esteemed recognition as a national 'specialized, refined, and innovative' small giant enterprise underscores our steadfast commitment to technological progression and outstanding quality. This unwavering dedication places us prominently at the forefront of our industry, leading the charge with pioneering solutions.
Our flagship offering, the load-sensitive proportional valve, stands as the pinnacle of advanced hydraulic system control technology. This expertly engineered component is essential for high-stakes applications in sectors such as emergency rescue operations, tunnel engineering, mining, and municipal service vehicles. Designed for construction machinery and heavy-duty equipment, it showcases unparalleled versatility. We pride ourselves on strategic partnerships with leading domestic manufacturers, playing a crucial role in the localization of core hydraulic components for premium mechanical equipment. Guided by our core philosophy-'serving customers with technology, impressing customers with our attitude, and retaining customers with quality'-we are dedicated to delivering outstanding products, services, and solutions. Our mission is to establish ourselves as a globally trusted supplier of premier hydraulic components, continually setting new standards of excellence on the world stage.
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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