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-G3/8; 3-G1/2; 4-G3/4; 5-G1. Plus, integrate with an ancillary block or intermediate transition block ZPL 5S(V)/H hydraulic control shut-off valve for enhanced performance.
(9)Directional valve block inflow controller options: 1, without inflow controller for basic control; 2, standard inflow controller for balanced flow; 4, 3-way flow controllers for both inlet and outlet, ideal for N 3/3-way valve setups; 5, strengthened inflow controller for robust applications; 8, pre-selectable for customized configurations.
(10) Function symbol of valve core: Offering versatility with options L, M, F, H, J, B, R, O, N.
(11) Output flow code of ports A & B: Choose your optimal flow rate with maximum output options of ports A & B: 3, 6, 10, 16, 25, 40, 63, 80, 120, 160, 210 (L/min), tailored for your specific needs.
(12) Secondary pressure limitation: For safety and efficiency, choose N for no pressure limiting protection; C to simultaneously limit pressure at actuator ports A & B; or A---B--- for separate pressure limitation, unit measured in bars.
(13) Function ON/OFF and pressure outlet: N, opt for no function ON/OFF and pressure outlet; X C type for precise pressure limitation; S/S1 AB type for specialized applications; A, electrical ON/OFF on side A; B, electrical ON/OFF on side B for enhanced control.
(14) Operation manner: A(1,2), manual operation with the option of a long handle (1=without handle, 2=with short handle); E, electric proportional control for precision; EA(1,2), combines electric proportional control and manual operation (1=without handle, 2=with short handle); D, electric switching value control for adaptability; DA(1,2), integrates electric switching value control and manual operation (1=without handle, 2=with short handle); M, manual friction positioning with a long handle for stability; H, pure hydraulic control aligning with oil ports A and B; F, pure hydraulic control with pilot oil ports perpendicular to oil ports A and B.
(15) Ancillary block: /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, providing the flexibility required for diverse applications.
(16) End plate configurations: E1, standard end plate with external discharge of pilot oil, connecting oil return control port T externally; E2, similar to E1 with the addition of port Y for versatile discharge options; E3, includes a 2-position 3-way magnetic ball valve for scenarios where the system pressure needs to rise to the safety valve pressure during power supply.
E4, offers internal discharge of pilot oil with port T sealable; E5, mirrors E2's configuration with internal discharge and sealable port T; E6, akin to E3 with internal discharge and port T sealing capability.
(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, available with guide line lengths of 3m, 5m, 10m, and more to suit your requirements.)
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 Proportional Valve for Truck Crane Safety, epitomizes the zenith of sophisticated hydraulic system control. Masterfully crafted for the demands of construction machinery and heavy-duty equipment, this versatile and adaptable component is crucial in high-stakes applications such as emergency rescue operations, tunnel engineering, mining, and municipal service vehicles. We are proud of our strategic collaborations with numerous leading domestic manufacturers, playing an indispensable 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 unwavering 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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