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 unwavering performance, ensuring steady operation.;
HLPSV: Variable Displacement Pump - Embodying adaptability and versatility, offering unmatched flexibility.;
(2) Connection Block Ports P & R Specifications - Delivering precision and reliability you can depend on::
2-G3/8; Designed for compactness and efficiency, enhancing streamlined operations.
3-G1/2; Built for robustness and dependability, ensuring seamless integration.;
4-G3/4; Providing advanced connectivity for superior control and performance.;
5, 55-G1; Facilitating a superior flow rate to meet high-demand applications effortlessly.;
6-G1 1/4; Delivering exceptional performance and reliability in demanding field conditions.;
(3) Additional Components and Specifications - Enhancing system capabilities to new heights::
C,Standard Type - A reliable baseline configuration catering to diverse needs.;
G,Throttle Valve (For HLPSL only) - Ensures precision control and fine-tuned operation.;
H,Fixed Differential Overflow Valve for Enhanced Circulating Pressure (~14 bar, HLPSL) - Optimizes flow management for superior performance and efficiency.;
(4) Pilot Oil Circuit Pressure Options - Offering customizable pressure control for diverse applications:0 - No pressure reducing valve; 1 - Pressure reducing valve (20 bar); 2 - Pressure reducing valve (40 bar); Tailored, bespoke solutions to meet specific requirements effectively.
(5) 2/2-way Magnetic Ball Valve for System Unloading - Facilitates streamlined efficiency and control with ease:C - No magnetic ball valve; F - Normally open magnetic ball valve, pressurizes the pump when powered and unloads it when unpowered; D - Normally closed magnetic ball valve, unloads the pump when powered and pressurizes it when unpowered;D/F - With a pressure limiting valve for secondary pressure (F50) with specified pressure value; Incorporates advanced safety measures ensuring secure and reliable operations.
(6) Tool Adjustable, Pressure Limiting Valve in Connection Block: With adjustable settings that cater to a wide range of pressure requirements-63, 120, 210, 280, 315, 350, and 400 bar-our design ensures seamless adaptability. For those seeking no pressure limiting valve (HLPSV only), choose /NF. Experience unparalleled pressure control across diverse applications, guaranteeing safety and efficiency.
(7) Product Series Classification - Identifying Excellence in Every Model:;-2 2 Series; -3 3 Series; -5 5 Series; Each series is meticulously crafted to meet the unique demands of any application, ensuring precision and reliability.
(8)Thread Size of Directional Spool Valve Ports A & B:2-G3/8; 3-G1/2; 4-G3/4; 5-G1; For seamless integration, combine with an ancillary block or intermediate transition block ZPL 5S(V)/H hydraulic control shut-off valve.
(9)Directional Valve Block Inflow Controller Options: Select from our array of sophisticated inflow controllers: 1, without inflow controller; 2, standard inflow controller; 4, dual 3-way flow controllers for inlet and outlet-perfect for N 3/3-way valve; 5, enhanced inflow controller; 8, pre-selectable configurations.
(10) Valve Core Function Symbols: Versatile functions coded as: L, M, F, H, J, B, R, O, N; ensuring versatile operation and customization.
(11) Output Flow Code for Ports A & B: Maximize capacity with available maximum output flows ranging from 3 to 210 L/min.
(12) Secondary Pressure Limitation Options: Choose between N, no pressure limiting protection; C, simultaneous pressure limitation for actuator ports A & B; A---B---, individual pressure limitation for ports A & B, unit (bar);
(13) Function ON/OFF and Pressure Outlet Options: Customize with options: N, no 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;
(14) Operation Modes: Tailor your control: A(1,2), manual with long handle (1=without handle, 2=with short handle); E, electric proportional control; EA(1,2), electric proportional and manual control (1=without handle, 2=with short handle); D, electric switching value control; DA(1,2), electric switching and manual control (1=without handle, 2=with short handle); M, manual friction positioning with long handle; H, purely hydraulic control (pilot oil ports align with A and B); F, purely hydraulic control (pilot oil ports perpendicular and outward from A and B);
(15) Ancillary Block Port Sizes: Adaptability across systems with sizes: /2 G3/8; /3 G1/2; /4 G3/4; /5 G1;
(16) End Plate Options: E1, standard end plate, external pilot oil discharge, connect oil return control port T externally; E2, like E1 with additional port Y; E3, external pilot oil discharge with 2-position 3-way magnetic ball valve-elevating system pressure to safety valve thresholds in power supply settings.
E4, resembling E1 with internal pilot oil discharge, sealable port T; E5, resembling E2 with internal discharge, sealable port T; E6, resembling E3 with internal discharge, sealable port T for optimized performance and security.
(17) Control voltage options are tailored to your needs, including the choice of anti-explosion type cables for utmost safety: G12-12VDC;G24-24VDC; Our offerings also extend to G24Ex with a 3-meter anti-explosion cable for 24VDC, G12Ex with a 3-meter cable for 12VDC, and G24MA with a 3-meter cable for 24VDC to ensure reliability and safety in demanding environments; G12bb621436
Since our inception in 2009, Jiangsu KM Hydraulic Control System Co., Ltd. has brilliantly illuminated the hydraulic industry with its groundbreaking innovations and unparalleled commitment to excellence. As a prestigious subsidiary of the esteemed China Baoan Group (stock code: 000009), we are proud to stand as a distinguished national high-tech enterprise. Our expertise lies in the meticulous research, innovative development, precise manufacturing, and strategic 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, driving the future of hydraulic solutions with state-of-the-art technology and visionary foresight.
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 indispensable 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, and revolutionizing the standards of innovation and reliability.
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