Introducing the groundbreaking HLPSL and HLPSV load-sensitive proportional multi-way directional spool valves, where innovation meets engineering excellence. These state-of-the-art marvels harmoniously integrate pressure, flow, and directional control within a single, cohesive unit, ensuring unparalleled performance and trustworthiness. Typically comprised of three pivotal functional modules - connecting blocks, directional valves, and end plates - these valves are intricately designed for seamless integration into high-end hydraulic systems, crucial in elite engineering machinery. They skillfully control the movement direction and speed of hydraulic cylinders, motors, and other actuators, delivering exceptional precision and command. Key features include a compact structure, outstanding energy efficiency, and the ability for stepless speed control. Moreover, they empower multiple actuators to function concurrently under varying loads, providing unmatched performance and adaptability for any application.
The HLPSL valves are meticulously crafted for constant displacement pump systems, ensuring unwavering and reliable operation. On the other hand, HLPSV valves are ingeniously engineered for variable pump systems, offering a unique balance of performance and efficiency. While HLPSV valves may show a marginally slower response time, they excel in delivering superior energy-saving performance, making them the ultimate choice for applications where efficiency is of utmost importance. With their cutting-edge engineering and energy-efficient design, HLPSV valves stand out as the premier solution for advanced hydraulic control demands.
| 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 cornerstone of stable and trustworthy functionality.;
HLPSV: Variable Displacement Pump - Embodies ultimate adaptability and versatility.;
(2) Connection Block Ports P & R Specifications - Craftsmanship that ensures accuracy and assured performance::
2-G3/8; Engineered for compactness and operational efficiency.
3-G1/2; Strength and reliability at its core.;
4-G3/4; Superior connectivity for enhanced command and control.;
5, 55-G1; Designed to offer exceptional flow rates, perfect for demanding operational environments.;
6-G1 1/4; Provides unparalleled field performance and reliability.;
(3) Additional Components and Specifications - Enhancing the system's capabilities to new heights::
C,Standard Type - A reliable foundation tailored to meet your requirements.;
G,Throttle Valve (For HLPSL only) - Guarantees meticulous control.;
H,Fixed Differential Overflow Valve for Enhanced Circulating Pressure (~14 bar, HLPSL) - Streamlined flow management to boost performance.;
(4) Pilot Oil Circuit Pressure Options - Tailor pressure control to suit diverse applications:0 - No pressure reducing valve; 1 - Pressure reducing valve (20 bar); 2 - Pressure reducing valve (40 bar); Providing bespoke solutions for your distinct requirements.
(5) 2/2-way Magnetic Ball Valve for System Unloading - Bringing about streamlined efficiency and precision control:C - No magnetic ball valve; F - Normally open magnetic ball valve, pressurizes pump when active, unloads when inactive; D - Normally closed valve, unloads when active, pressurizes when inactive;D/F - Equipped with a pressure limiting valve for secondary pressure (F50) with specified pressure value; Implemented advanced safety measures ensure secure and smooth operations.
(6) Tool Adjustable, Pressure Limiting Valve in Connection Block: Discover the power of versatility with adjustable settings that cater to every demand, available at 63, 120, 210, 280, 315, 350, and 400 bar. No matter what your needs, our NF option offers a streamlined solution with no pressure limiting valve (exclusively for HLPSV). Experience unparalleled pressure control tailored for diverse scenarios, ensuring the utmost in safety and performance.
(7) Product Series Classification - Identifying excellence: A hallmark of superior engineering,;-2 2 Series; -3 3 Series; -5 5 Series; Designed meticulously to meet the demands of any application.
(8)Thread size of directional spool valve ports A & B: Precision and adaptability at your fingertips: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;
(9)Directional valve block inflow controller options: Tailor your control experience with a suite of innovative 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 applications; 5, strengthened inflow controller; 8, pre-selectable for custom operations.
(10) Valve core function symbols: L, M, F, H, J, B, R, O, N; Explore diverse functionality with these symbols representing a spectrum of core capabilities.
(11) Output flow code for ports A & B: Maximize performance with available maximum output flows: 3, 6, 10, 16, 25, 40, 63, 80, 120, 160, 210 (L/min);
(12) Secondary pressure limitation options: Craft the pressure dynamics with precision: N, no pressure limiting protection; C, concurrent pressure limitation on actuator ports A & B; A---B---, individual pressure control on actuator ports A & B, unit (bar);
(13) Function ON/OFF and pressure outlet options: Embrace functionality with finesse: N, without function ON/OFF and pressure outlet; X C type pressure limitation; S/S1 AB type pressure limitation; Activate precise control with A, electrical ON/OFF on side A; B, electrical ON/OFF on side B;
(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 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; H, pure hydraulic control aligning two pilot oil ports with oil ports A and B; F, pure hydraulic control orienting two pilot oil ports perpendicular to oil ports A and B, extending outward for robust control.
(15) Ancillary block port sizes: Versatile port sizes accommodate a range of setups: /2 G3/8; /3 G1/2; /4 G3/4; /5 G1;
(16) End plate options: Customizable end plate designs for optimized system integration: E1, standard end plate with external discharge of pilot oil, connecting oil return control port T externally; E2, similar to E1 with additional port Y for enhanced functionality; E3, external discharge of pilot oil featuring a 2-position 3-way magnetic ball valve, with system pressure rising to safety valve levels during power supply scenarios;
E4, akin to E1, with internal discharge of pilot oil allowing port T to be sealed; E5, mirroring E2 with internal pilot oil discharge, port T sealable; E6, reflecting E3's features with internal discharge, enabling port T sealing.
(17) Control voltage and the length of anti-explosion type cable options: G12-12VDC; Offering reliable power with a focus on safety across demanding environments.G24-Immerse yourself in the exceptional power and versatility of our advanced voltage options: 24VDC; G24Ex-3m-24VDC; G12Ex-3m-12VDC; G24MA-3m-24VDC; 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.
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