Step into the future of hydraulic control with our pioneering HLPSL and HLPSV load-sensitive proportional multi-way directional spool valves. Masterfully crafted, these engineering marvels merge pressure, flow, and directional control into one cohesive, high-performance unit, guaranteeing unrivaled efficiency and reliability. Comprising three pivotal functional modules-connecting blocks, directional valves, and end plates-these valves are designed to be seamlessly integrated into elite hydraulic systems, instrumental in cutting-edge engineering machinery. They precisely regulate the movement direction and speed of hydraulic cylinders, motors, and other actuators, offering unmatched precision and control. Featuring a compact structure, superior energy efficiency, and the capability for stepless speed control, these valves enable multiple actuators to operate simultaneously under varying loads, ensuring exceptional 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 engineered with precision for variable pump systems. While HLPSV valves might have a marginally slower response time, they excel in providing outstanding energy-saving capabilities, making them the pinnacle of efficiency-focused applications. With their state-of-the-art engineering and energy-efficient design, HLPSV valves are the premier choice for sophisticated 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 Connection Block Code
HLPSL: Constant Displacement Pump;
HLPSV: Variable Displacement Pump;
(2) Connection Block Ports P & R:
2-G3/8;
3-G1/2;
4-G3/4;
5, 55-G1;
6-G1 1/4;
(3)Enhancing Components:
C,Standard Type;
G,Throttle Valve (Exclusively for HLPSL);
H,Fixed Differential Overflow Valve (Elevates Circulating Pressure to ~14 bar for HLPSL);
(4)Pilot Oil Circuit Pressure:Options: 0 - no pressure reducing valve; 1 - with 20 bar pressure reducing valve; 2 - with 40 bar pressure reducing valve;
(5)2/2-way Magnetic Ball Valve for System Unloading: C - without magnetic ball valve; F - normally open magnetic ball valve (pump pressurizes when powered; unloads when power fails); D - normally closed magnetic ball valve (pump unloads when powered; pressurizes when power fails);../F. . , Pressure Limiting Valve incorporated, it can function as secondary pressure (F50) with specified values;
(6)Adjustable Tool - Pressure Limiting Valve in Connection Block: Set values such as 63, 120, 210, 280, 315, 350, 400 bar; /NF: without pressure limiting valve (specific to HLPSV);
(7)Product Series Specification: -2 series;-3 3 series; -5 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: 1, without inflow controller; 2, standard inflow controller; 4, 3-way flow controllers for inlet and outlet (ideal for N 3/3-way valve); 5, strengthened inflow controller; 8, pre-selectable;
(10) Function symbol of valve core: L, M, F, H, J, B, R, O, N;
(11) Output flow code of ports A & B: Choose from a range of maximum output flows for ports A & B, typically 3, 6, 10, 16, 25, 40, 63, 80, 120, 160, 210 (L/min);
(12) Secondary pressure limitation: N, no pressure limiting protection; C, limit the pressure of actuator ports A & B simultaneously; A---B---, limit the pressure of actuator ports A & B separately, unit (bar);
(13) Function ON/OFF and pressure outlet: N, without function ON/OFF and pressure outlet; X C type pressure limitation; S/S1 AB type pressure limitation; A, electrical ON/OFF on side A; B, electrical ON/OFF on side B;
(14) Operation manner: A(1,2), manual operation with long handle (1=without handle, 2=with short handle); E, electric proportional control; EA(1,2), electric proportional control and manual operation (1=without handle, 2=with short handle); D, electric switching value control; DA(1,2), electric switching value control and manual operation (1=without handle, 2=with short handle); M, manual friction positioning with long handle; H, pure hydraulic control (two pilot oil ports align with oil ports A and B); F, pure hydraulic control (two pilot oil ports are perpendicular to oil ports A and B and outward respectively);
(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;
(16) End plate: E1, standard end plate with external discharge of pilot oil, and connection to oil return control port T externally; E2, similar to E1, with external discharge of pilot oil and an additional port Y; E3, external discharge of pilot oil, a 2-position 3-way magnetic ball valve is mounted; in power supply scenarios, the system pressure rises to the safety valve pressure;
E4, similar to E1, with internal discharge of pilot oil, and port T can be sealed; E5, similar to E2, with internal discharge of pilot oil, and port T can be sealed; E6, similar to E3, with internal discharge of pilot oil, and port T can be sealed;
(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 options: 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 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 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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