Introducing our groundbreaking HLPSL and HLPSV load-sensitive proportional multi-way directional spool valves. These remarkable engineering feats offer seamless integration of pressure, flow, and directional control into a singular, harmonious unit, ensuring unmatched performance and reliability. Typically composed of three essential functional modules - connecting blocks, directional valves, and end plates - these valves are expertly crafted for integration into sophisticated hydraulic systems, crucial in top-tier engineering machinery. They precisely control the direction and speed of hydraulic cylinders, motors, and other actuators, delivering exceptional 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 designed for constant displacement pump systems, ensuring steadfast and reliable operation. In contrast, the HLPSV valves are ingeniously crafted 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 of utmost importance. With their innovative engineering and energy-efficient design, HLPSV valves stand out 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 - A crucial component for ensuring steady, reliable performance.;
HLPSV: Variable Displacement Pump - Exemplifying adaptability and versatility at its finest.;
(2) Connection Block Ports P & R Specifications - Precision-engineered for your confidence::
2-G3/8; A compact yet highly efficient solution.
3-G1/2; Dependable and robust for demanding tasks.;
4-G3/4; Ensures advanced connectivity and performance.;
5, 55-G1; Provides superior flow rate.;
6-G1 1/4; Offers unmatched performance levels.;
(3) Additional Components and Specifications - Amplifying system capabilities::
C,Standard Type - A reliable baseline to build upon.;
G,Throttle Valve (For HLPSL only) - Achieves precision control for optimal performance.;
H,Fixed Differential Overflow Valve for Enhanced Circulating Pressure (~14 bar, HLPSL) - Optimizes flow management effectively.;
(4) Pilot Oil Circuit Pressure Options - Tailor the pressure control to your specific needs:0 - No pressure reducing valve; 1 - Pressure reducing valve (20 bar); 2 - Pressure reducing valve (40 bar); Carefully tailored for your precise requirements.
(5) 2/2-way Magnetic Ball Valve for System Unloading - Ensures streamlined efficiency: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; Provides advanced safety measures.
(6) Tool Adjustable, Pressure Limiting Valve in Connection Block: Offers settings at 63, 120, 210, 280, 315, 350, 400 bar; /NF: No pressure limiting valve (HLPSV only); Guarantees optimal pressure control.
(7) Product Series Classification - Identifying excellence: Discover unrivaled quality and performance with our diverse product series, crafted to meet every unique demand and application.;-2 2 Series; -3 3 Series; -5 5 Series; Tailored for every application: Experience precision engineering tailored for every task, ensuring optimal performance in every use case.
(8)Thread size of directional spool valve ports A & B: Choose the perfect fit for your system with our versatile thread size options, ensuring seamless integration and superior functionality.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 precision-engineered compatibility for a range of applications, these options provide exceptional control and adaptability.
(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; Versatile inflow control options designed to cater to your specific operational needs, ensuring precision and efficiency in every scenario.
(10) Valve core function symbols: L, M, F, H, J, B, R, O, N; A comprehensive array of valve core functions to match the unique requirements of your hydraulic systems, providing tailored solutions for optimal performance.
(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); Select from a wide range of output flow capacities, engineered to maximize efficiency and ensure robust hydraulic performance at any scale.
(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); Tailor your pressure limitation settings to safeguard your system's integrity, with customizable options for simultaneous or separate actuator port protection.
(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; Choose precise control with our ON/OFF and pressure outlet options, offering a spectrum of configurations for enhanced system operation.
(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); Diverse operation modes to suit every preference and application, from manual to advanced electric and hydraulic controls, ensuring superior flexibility and user-centric design.
(15) Ancillary block port sizes: /2 G3/8; /3 G1/2; /4 G3/4; /5 G1; Precision-engineered port sizes for ancillary blocks, offering seamless integration and enhanced system compatibility.
(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; Secure your hydraulic system with our meticulously designed end plate options, providing superior protection and adaptability for diverse operational needs.
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; Offering a range of customizable end plate configurations to meet your specific sealing and discharge requirements, ensuring safety and efficiency.
(17) Control voltage and the length of anti-explosion type cable options: G12-12VDC; Discover robust control voltage solutions, equipped with anti-explosion cables, ensuring safety and reliability in demanding environments.G24-24VDC; G24Ex-3m-24VDC; G12Ex-3m-12VDC; G24MA-3m-24VDC; G Advanced voltage configurations available for heightened safety and efficiency, providing peace of mind in every application.123d8c99f0
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.
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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.
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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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