Introducing our groundbreaking HLPSL and HLPSV load-sensitive proportional multi-way directional spool valves. These revolutionary engineering marvels elevate hydraulic technology by seamlessly integrating pressure, flow, and directional control into one singular, harmonious unit, guaranteeing unmatched performance and reliability. Crafted with precision, they are typically composed of three essential functional modules: connecting blocks, directional valves, and end plates. These components are meticulously designed for incorporation into high-end hydraulic systems, pivotal in top-tier engineering machinery. The valves precisely govern the movement direction and speed of hydraulic cylinders, motors, and other actuators, delivering unparalleled precision and control. Key highlights include their compact structure, superior energy efficiency, and remarkable capability for stepless speed control. Moreover, they empower 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. Designed for precision and durability, these valves meet the high demands of modern engineering. 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. This makes them the ultimate choice for applications where efficiency is paramount. With their cutting-edge engineering and energy-efficient design, HLPSV valves stand out as the premier solution for advanced hydraulic control requirements, offering a perfect blend of innovation and performance.
| 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-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: Choose from options designed for optimized hydraulic performance: 1, without inflow controller; 2, standard inflow controller; 4, 3-way flow controllers ideal for inlet and outlet (perfect for N 3/3-way valve); 5, strengthened inflow controller for heightened reliability; 8, pre-selectable tailored solutions;
(10) Function symbol of valve core: Select from versatile options: L, M, F, H, J, B, R, O, N;
(11) Output flow code of ports A & B: Tailor your hydraulic experience by selecting from maximum output flows of ports A & B: 3, 6, 10, 16, 25, 40, 63, 80, 120, 160, 210 (L/min);
(12) Secondary pressure limitation: Elevate safety with precision: N, no pressure limiting protection; C, simultaneously limit the pressure of actuator ports A & B; A---B---, independently limit the pressure of actuator ports A & B, unit (bar);
(13) Function ON/OFF and pressure outlet: Choose from adaptable configurations: N, without function ON/OFF and pressure outlet; X C type pressure limitation ensures robust control; S/S1 AB type pressure limitation for superior functionality; A, electrical ON/OFF on side A for enhanced flexibility; B, electrical ON/OFF on side B for precision control;
(14) Operation manner: Diverse control options tailored to your needs: A(1,2), manual operation with long handle (1=without handle, 2=with short handle) for tactile control; E, electric proportional control for seamless adjustments; EA(1,2), electric proportional control and manual operation (1=without handle, 2=with short handle) for versatile management; D, electric switching value control for decisive operations; DA(1,2), electric switching value control and manual operation (1=without handle, 2=with short handle) for adaptable handling; M, manual friction positioning with long handle for precise positioning; H, pure hydraulic control with two pilot oil ports aligning with oil ports A and B for direct control; F, pure hydraulic control with two pilot oil ports perpendicular to oil ports A and B and outward respectively for innovative control schemes;
(15) Ancillary block: Perfect the interface with your system: /2 Ancillary block port size G3/8; /3 Ancillary block port size G1/2; /4 Ancillary block port size G3/4; /5 Ancillary block port size G1;
(16) End plate: Optimize system efficiency with tailored solutions: E1, standard end plate, external discharge of pilot oil, connecting oil return control port T externally for seamless integration; E2, similar to E1, with external discharge and additional port Y for expanded functionality; E3, featuring external discharge and a 2-position 3-way magnetic ball valve ensuring safety under power supply scenarios; when activated, system pressure rises to safety valve pressure;
E4, similar to E1, provides internal discharge of pilot oil with sealable port T for enhanced security; E5, similar to E2, internal discharge of pilot oil, port T can be sealed for optimal containment; E6, similar to E3, internal discharge of pilot oil, port T can be sealed for focused 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 (anti-explosion type, length of guide line: Flexible solutions ranging from 3m, 5m, 10m, etc.)
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.
Our flagship product, the Load Sensitive Valve for Reliable Hydraulic Crane Operations, 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 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 are 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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