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 - Exemplifying adaptability at its finest.;
(2) Connection Block Ports P & R Specifications - Precision engineering you can trust::
2-G3/8; Compact, efficient, and seamlessly integrated.
3-G1/2; A paragon of reliability and robustness.;
4-G3/4; Offering advanced connectivity for enhanced performance.;
5, 55-G1; Engineered for superior flow rates.;
6-G1 1/4; Achieving unmatched performance with every use.;
(3) Additional Components and Specifications - Elevating system capabilities beyond expectations::
C,Standard Type - A dependable baseline for everyday excellence.;
G,Throttle Valve (For HLPSL only) - Precision control for effortless adjustments.;
H,Fixed Differential Overflow Valve for Enhanced Circulating Pressure (~14 bar, HLPSL) - Masterfully optimized flow management.;
(4) Pilot Oil Circuit Pressure Options - Tailor your pressure control with customizable solutions:0 - No pressure reducing valve; 1 - Pressure reducing valve (20 bar); 2 - Pressure reducing valve (40 bar); Specifically tailored to meet your unique requirements.
(5) 2/2-way Magnetic Ball Valve for System Unloading - Designing streamlined efficiency into your operations:C - No magnetic ball valve; F - Widely utilized 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. . , Accompanied by a pressure limiting valve for secondary pressure (F50) with specified pressure value; Advanced safety measures to ensure operational integrity.
(6) Tool Adjustable, Pressure Limiting Valve in Connection Block: Available settings at 63, 120, 210, 280, 315, 350, 400 bar; /NF: No pressure limiting valve (HLPSV only); Ensuring optimal pressure control and system reliability.
(7) Product Series Classification - Identifying Excellence: Discover the range of our innovative solutions designed to meet diverse needs.;-2 2 Series; -3 3 Series; -5 5 Series; Masterfully tailored to suit every application with precision and care.
(8)Thread Size of Directional Spool Valve Ports A & B: Choose the perfect fit for your system's seamless operation.2-G3/8; 3-G1/2; 4-G3/4; 5-G1; A, ancillary block or intermediate transition block ZPL 5S(V)/H. Experience the refined control of hydraulic shut-off valves.
(9)Directional Valve Block Inflow Controller Options: Tailor your control with precision - 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 for your convenience.
(10) Valve Core Function Symbols: L, M, F, H, J, B, R, O, N; Discover the array of functionalities designed to optimize your hydraulic system.
(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); Optimize your system's performance with our flow capabilities.
(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); Ensure safety and efficiency with our pressure control options.
(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; Enhance functionality and adaptability to meet your system's unique demands.
(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); Experience versatility with our comprehensive operation mode selections.
(15) Ancillary Block Port Sizes: /2 G3/8; /3 G1/2; /4 G3/4; /5 G1; Configure your system effortlessly with our range of port sizes for optimal performance.
(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; Choose from a variety of end plate options to best suit your hydraulic system's 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; Adaptability at its finest with our secure internal discharge options.
(17) Control Voltage and the Length of Anti-explosion Type Cable Options: G12-12VDC; Ensure safety and stability with our robust control voltage solutions.G24-24VDC; G24Ex-3m-24VDC; G12Ex-3m-12VDC; G24MA-3m-24VDC; G12b07ef15e
Since our inception in 2009, Jiangsu KM Hydraulic Control System Co., Ltd. has elevated the standards of the hydraulic industry through groundbreaking innovation and unparalleled excellence. As a prestigious subsidiary of the renowned 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 top-tier 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 industry frontrunners, continuously leading the way in hydraulic solutions.
Our flagship product, the Load Sensitive Hydraulic Valve for Proportional Control and Safety, represents the pinnacle of advanced hydraulic system control. Meticulously engineered for construction machinery and heavy-duty equipment, this versatile component is indispensable for high-stakes applications, including 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 dedicated to delivering exceptional products, services, and solutions. Our mission is to become a globally trusted supplier of premier hydraulic components, setting new benchmarks of excellence worldwide.
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