Introducing our groundbreaking HLPSL and HLPSV load-sensitive proportional multi-way directional spool valves-a true revolution in hydraulic engineering! These avant-garde marvels ingeniously merge pressure, flow, and directional control into one seamless, harmonious unit, ensuring unparalleled performance and reliability. Crafted with precision, these valves are typically composed of three fundamental functional modules: connecting blocks, directional valves, and end plates. They are meticulously crafted for integration into high-end hydraulic systems, vital in top-tier engineering machinery. These valves precisely control the movement direction and speed of hydraulic cylinders, motors, and other actuators, delivering unmatched precision and control. Key highlights include a compact structure, superior energy efficiency, and the capability for stepless speed control. Moreover, they facilitate the simultaneous operation of multiple actuators under varying loads, offering unprecedented performance and versatility for any application.
The HLPSL valves are expertly tailored for constant displacement pump systems, guaranteeing steadfast and reliable operation. Conversely, the HLPSV valves are meticulously engineered for variable pump systems. While the 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 state-of-the-art 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)Fundamental Code of Connection Block
HLPSL: Constant Displacement Pump;
HLPSV: Variable Displacement Pump;
(2) Port P & R Specifications of the Connection Block:
2-G3/8;
3-G1/2;
4-G3/4;
5, 55-G1;
6-G1 1/4;
(3)Additional Component Details:
C,Standard Type;
G,Throttle Valve (Applicable Exclusively to HLPSL);
H,Fixed Differential Overflow Valve - Enhancing Circulating Pressure (approx. 14 bar, HLPSL);
(4)Pilot Oil Circuit Pressure:0: no pressure reducing valve; 1: with pressure reducing valve (20 bar); 2: with pressure reducing valve (40 bar);
(5)2/2-way Magnetic Ball Valve for System Unloading: C, without magnetic ball valve; F, normally open magnetic ball valve (pressurized when powered, unloads upon power failure); D, normally closed magnetic ball valve (unloads when powered, pressurized upon power failure);../F. Pressure Limiting Valve: Serves as secondary pressure (F50) with specific pressure value indicated;
(6)Tool Adjustable Pressure Limiting Valve within the Connection Block: Adjustable to pressure settings such as 63, 120, 210, 280, 315, 350, 400 bar; /NF: without pressure limiting valve (HLPSV only);
(7)Product Series: -2 series;;-3 series; -5 series;
(8)Thread size of directional spool valve ports A & B: 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: 1, without inflow controller for minimalist setup; 2 showcases our standard inflow controller; 4, 3-way flow controllers for inlet and outlet, ideal for N 3/3-way valve applications; 5, our strengthened inflow controller for robust requirements; 8, pre-selectable for customized control.
(10) Explore the diverse function symbols of the valve core: L, M, F, H, J, B, R, O, N; each signifying unique functionalities.
(11) Output flow code of ports A & B: Tailor your choice from maximum output flows of ports A & B, ranging from 3 to 210 L/min.
(12) Secondary pressure limitation: N, no pressure limiting protection for unrestricted flow; C, simultaneous pressure limitation at actuator ports A & B for balanced operations; A---B---, distinct pressure limitation at actuator ports A & B for precision control, measured in bar.
(13) Function ON/OFF and pressure outlet: N, without function ON/OFF and pressure outlet for simplicity; X, C type pressure limitation for enhanced safety; S/S1, AB type pressure limitation for adaptability; A, electrical ON/OFF on side A for convenience; B, electrical ON/OFF on side B for tailored control.
(14) Operation manner: A(1,2), manual operation with long handle; E, electric proportional control for precision; EA(1,2), hybrid electric proportional and manual operation; D, electric switching value control for automation; DA(1,2), combined electric switching and manual operation; M, manual friction positioning with long handle for reliability; H, pure hydraulic control with two pilot oil ports aligning with oil ports A and B; F, pure hydraulic control with perpendicular pilot oil ports.
(15) Ancillary block: Tailor your ancillary block port size with options like /2 G3/8, /3 G1/2, /4 G3/4, /5 G1, to complement your system.
(16) End plate: E1, standard end plate with external discharge; E2, adds port Y for versatility; E3, features a 2-position 3-way magnetic ball valve for enhanced safety under power supply;
E4, E5, and E6 options offer internal discharge with sealable port T for secure operations.
(17) Control voltage and the length of anti-explosion type cable: G12-12VDC;G24-24VDC; G24Ex-3m-24VDC; G12Ex-3m-12VDC; G24MA-3m-24VDC; G12MA-3m-12VDC, offering anti-explosion capabilities with flexible cable lengths: 3m, 5m, 10m, and beyond.
Since our inception in 2009, Jiangsu KM Hydraulic Control System Co., Ltd. has emerged as a beacon of groundbreaking innovation and unmatched excellence in the hydraulic industry. As a prestigious member of the China Baoan Group (stock code: 000009), we are proud to be recognized as a national high-tech enterprise. Our forte lies in the research, development, manufacturing, and sales of premium hydraulic components. Our esteemed status as a national 'specialized, refined, and innovative' small giant enterprise signifies our relentless dedication to technological advancement and superior quality, positioning us as a leader in the field.
At the heart of our cutting-edge offerings is our flagship product, the load-sensitive proportional valve, which epitomizes the pinnacle of advanced hydraulic system control. Meticulously designed for construction machinery and heavy-duty equipment, this versatile and adaptable component proves indispensable in 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 unwavering in our dedication to delivering exceptional products, services, and solutions. Our mission is to ascend as a globally trusted supplier of premier hydraulic components, setting new standards of excellence worldwide.
Question:1. What about the lead time?
Answer:The lead time for production is typically one month following receipt of payment. This timeframe allows us to ensure meticulous preparation and stringent quality control for optimal results, ensuring your products are delivered flawlessly.
Question:2. Do you have any MOQ limit for LED light orders?
Answer: We offer an exceptionally low minimum order quantity. Even a single piece can be ordered for sample checking to meet your specific needs, providing ultimate flexibility for your projects.
Question:3. How to proceed with an order for LED lights?
Answer: First, inform us of your detailed requirements or application. Second, we will provide a customized quote based on your needs or our expert recommendations. Third, you confirm thedrawings,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.
Question:4. Is it OK to print my logo on the product?
Answer: Absolutely, it is possible. Please inform us formally before production begins, and confirm the design based on the sample we provide. This ensures your branding is perfectly represented with precision and quality.
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