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 performance, ensuring reliability in every application.;
HLPSV: Variable Displacement Pump - Exhibit adaptability at its finest, seamlessly adjusting to your system's demands.;
(2) Connection Block Ports P & R Specifications - Delivering precision you can trust::
2-G3/8; Compact, efficient, designed to maximize space management without compromising performance.
3-G1/2; Reliable, robust, ensuring steadfast operation under the toughest conditions.;
4-G3/4; Advanced connectivity, optimized for high-demand environments.;
5, 55-G1; Designed for superior flow rate, facilitating exceptional operational efficiency.;
6-G1 1/4; Unmatched performance, crafted for unparalleled hydraulic control.;
(3) Additional Components and Specifications - Pushing the boundaries of system capabilities::
C,Standard Type - The dependable baseline for every requirement.;
G,Throttle Valve (For HLPSL only) - Achieves precision control with effortless ease.;
H,Fixed Differential Overflow Valve for Enhanced Circulating Pressure (~14 bar, HLPSL) - Masterfully optimized for superior flow management.;
(4) Pilot Oil Circuit Pressure Options - Tailored for customizable pressure control:0 - Without pressure reducing valve; 1 - Includes pressure reducing valve (20 bar); 2 - With pressure reducing valve (40 bar); Crafted to meet your unique specifications.
(5) 2/2-way Magnetic Ball Valve for System Unloading - Designed for streamlined efficiency:C - Absent magnetic ball valve; F - Normally open magnetic ball valve: activates pump under power, deactivates when unpowered; D - Normally closed magnetic ball valve, deactivates pump under power, activates when unpowered; D./F. . , Equipped with a pressure limiting valve for secondary pressure (F50) with specified pressure values; Advanced safety measures in mind.
(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); Guaranteeing optimal pressure control tailored to your hydraulic system's needs.
(7) Product Series Classification - Identifying excellence: Discover the epitome of engineering sophistication with our meticulously categorized product series, each one embodying unparalleled precision and reliability.;-2 2 Series; -3 3 Series; -5 5 Series; Tailored for every application: Whether your needs are modest or massive, our dynamic series lineup provides a customized fit for every hydraulic control challenge, ensuring optimal performance in any setting.
(8)Thread size of directional spool valve ports A & B: Equip your system with the ideal thread size to ensure seamless hydraulic operations. Our versatile options offer unparalleled adaptability for any application.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; Achieve seamless integration with precision-engineered thread sizes, making transitions smooth and efficient.
(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; Elevate your hydraulic system's flexibility with a range of inflow controllers designed to meet the most demanding of engineering requirements.
(10) Valve core function symbols: L, M, F, H, J, B, R, O, N; Choose from a variety of valve core symbols, each representing a unique functionality to tailor your hydraulic solutions precisely to your needs.
(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); Maximize efficiency with our comprehensive range of output flow codes, ensuring the perfect match for your operational requirements.
(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); Safeguard your system with advanced pressure limitation options, designed for enhanced protection 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; Experience precise control with our diverse ON/OFF and pressure outlet configurations, engineered for maximum versatility and ease of 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); Embrace a spectrum of operation modes, each designed to provide unparalleled adaptability, from manual to full hydraulic control, enhancing operational efficiency at every turn.
(15) Ancillary block port sizes: /2 G3/8; /3 G1/2; /4 G3/4; /5 G1; Our port size options ensure seamless integration, offering flexibility and precision to meet the unique demands of your hydraulic system.
(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; Versatile end plate options provide robust solutions for managing pilot oil discharge and system pressure, ensuring optimal performance in diverse scenarios.
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; Ensure operational integrity with end plates designed for internal discharge, delivering efficient pressure management and seamless integration.
(17) Control voltage and the length of anti-explosion type cable options: G12-12VDC; With our advanced control voltage and anti-explosion cable options, you can achieve unparalleled safety and performance under the most demanding conditions.G24-24VDC; G24Ex-3m-24VDC; G12Ex-3m-12VDC; G24MA-3m-24VDC; G Experience flexibility with our diverse voltage options, engineered for consistent and reliable performance across a spectrum of industrial applications.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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