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 of directional spool valve ports A & B: 2-GAvailable sizes include: 3/8, 3-G1/2, 4-G3/4, 5-G1; A, featuring ancillary block or the versatile intermediate transition block ZPL 5S(V)/H hydraulic control shut-off valve;
(9)Directional valve block inflow controller options: 1, without inflow controller for flexible use; 2, standard inflow controller for reliable control; 4, 3-way flow controllers, perfect for N 3/3-way valve applications; 5, strengthened inflow controller for robust performance; 8, customizable pre-selectable settings;
(10) Discover the distinctive function symbols of valve core: L, M, F, H, J, B, R, O, N; each ensuring precision and adaptability;
(11) Output flow code for ports A & B: Select from an array of maximum output flows: 3, 6, 10, 16, 25, 40, 63, 80, 120, 160, 210 (L/min); designed for efficiency and performance;
(12) Secondary pressure limitation: Options include N for no pressure limiting protection, C to limit actuator ports A & B simultaneously, or A---B--- to limit them separately, in units of bar;
(13) Function ON/OFF and pressure outlet choices: N for none; X for C type pressure limitation; S/S1 for AB type; A for electrical ON/OFF on side A; B for side B; flexibility at your fingertips;
(14) Operation manner: Choose from A(1,2) for manual with a long handle; E for electric proportional control; EA(1,2) combines both; D for electric switching value control; DA(1,2) offers a dual approach; M for manual friction positioning with a long handle; H for pure hydraulic control aligning pilot oil ports with A and B; F for perpendicular alignment for outward flow;
(15) Ancillary block sizes to suit your needs: /2 G3/8; /3 G1/2; /4 G3/4; /5 G1; each designed for seamless integration;
(16) End plate options: E1 for standard with external pilot oil discharge; E2 similar but with added port Y; E3 features a 2-position 3-way magnetic ball valve, perfect for scenarios where system pressure reaches safety valve pressure;
E4, similar to E1 with internal discharge of pilot oil, port T sealable; E5 akin to E2 with internal capabilities; E6 mirrors E3 with internal discharge and sealable port T;
(17) Control voltage specifications and anti-explosion cable lengths: G12-12VDC;G24-24VDC; G24Ex-3m-24VDC; G12Ex-3m-12VDC; G24MA-3m-24VDC; G12MA-3m-12VDC, designed for anti-explosion applications with guide line lengths of 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. Excelling in the research, development, manufacturing, and sales of premium hydraulic components, we have carved a niche as a national 'specialized, refined, and innovative' small giant enterprise. Our relentless pursuit of technological advancement and superior quality affirms our leadership status in the field.
Our flagship product, the load-sensitive proportional valve, represents 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 like 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 localizing 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 committed to delivering exceptional products, services, and solutions. Our mission is to ascend as a globally trusted supplier of premier hydraulic components, establishing 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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