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 singular, 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 designed 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. Additionally, they allow 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. Although 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)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 (approximately 14 bar, HLPSL);
(4)Pilot Oil Circuit Pressure:0 without 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 under power, unloads on power failure); D, normally closed magnetic ball valve (unloads under power, pressurized on power failure);../F. Pressure Limiting Valve as secondary pressure (F50) with specified pressure value indicated;
(6)Tool Adjustable Pressure Limiting Valve in 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 options for directional spool valve ports A & B are expertly engineered to ensure optimal performance. 2-GOptions include 3/8; 3-G1/2; 4-G3/4; 5-G1. Choose an ancillary block or intermediate transition block ZPL 5S(V)/H for superior hydraulic control shut-off valve functionality.
(9)Directional valve block inflow controller options: 1 offers no inflow controller. 2 provides a standard inflow controller. 4 includes 3-way flow controllers perfect for N 3/3-way valves. 5 is for a strengthened inflow controller. 8 is pre-selectable for tailored flow regulation.
(10) Choose from versatile function symbols of the valve core including L, M, F, H, J, B, R, O, N for a customizable hydraulic experience.
(11) Output flow code for ports A & B: Select from a wide range of maximum output flows including 3, 6, 10, 16, 25, 40, 63, 80, 120, 160, 210 L/min to meet your specific requirements.
(12) Secondary pressure limitation: Choose N for no pressure limiting protection. Opt for C to limit pressure at actuator ports A & B simultaneously, or A---B--- for separate limitation of each port, measured in bar for precision control.
(13) Function ON/OFF and pressure outlet: N indicates no function ON/OFF and pressure outlet. X signifies C type pressure limitation, while S/S1 denotes AB type pressure limitation. Options A and B provide electrical ON/OFF capabilities on respective sides for enhanced control.
(14) Operation manner: Select A(1,2) for manual with long or short handle options. E offers electric proportional control. EA(1,2) combines electric proportional and manual operation. D provides electric switching value control. DA(1,2) integrates switching value control with manual operation. M features manual friction positioning. H and F offer pure hydraulic control with different pilot oil port alignments for tailored operation.
(15) Ancillary block configurations offer precise port sizes with options: /2 G3/8, /3 G1/2, /4 G3/4, /5 G1 for adaptability to varied hydraulic system requirements.
(16) End plate configurations: E1 is a standard model with external pilot oil discharge. E2 adds an additional port Y. E3 features a 2-position 3-way magnetic ball valve, ensuring system pressure aligns with safety valve thresholds.
For advanced end plate features, E4, E5, and E6 offer internal pilot oil discharge options with sealable port T for secure system integration.
(17) Control voltage and anti-explosion type cable lengths: G12-12VDC offers reliable power options.G24-24VDC; Explore G24Ex-3m-24VDC; G12Ex-3m-12VDC; G24MA-3m-24VDC; G12MA-3m-12VDC. These anti-explosion types come with guide line lengths of 3m, 5m, 10m, and more to suit specific installation needs.
Since our inception in 2009, Jiangsu KM Hydraulic Control System Co., Ltd. has rapidly become a beacon of groundbreaking innovation and unmatched excellence in the hydraulic industry. As a prestigious member of the distinguished China Baoan Group (stock code: 000009), we are proud to be recognized as a national high-tech enterprise. Our forte lies in the comprehensive research, advanced development, expert manufacturing, and strategic sales of premium hydraulic components. Our esteemed status as a national 'specialized, refined, and innovative' small giant enterprise underscores our relentless dedication to technological advancement and superior quality, positioning us as a leader in the field.
Our flagship product, the load-sensitive proportional valve, stands at the pinnacle of advanced hydraulic system control. Meticulously engineered for construction machinery and heavy-duty equipment, this versatile and adaptable component is indispensable in high-stakes applications such as emergency rescue operations, tunnel engineering, mining, and municipal service vehicles. We pride ourselves on strategic collaborations with numerous leading domestic manufacturers, playing a pivotal role in the localization of core hydraulic components for high-end mechanical equipment. Anchored by our core philosophy-'serving customers with technology, impressing customers with our attitude, and retaining customers with quality'-we remain steadfast 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 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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