Introducing our groundbreaking HLPSL and HLPSV load-sensitive proportional multi-way directional spool valves. These revolutionary engineering marvels harmoniously blend pressure, flow, and directional control into a single, seamless unit, ensuring unmatched performance and reliability. Comprising three essential functional modules-connecting blocks, directional valves, and end plates-these valves are intricately designed for integration into high-end hydraulic systems, playing a crucial role in top-tier engineering machinery. They precisely manage the movement direction and speed of hydraulic cylinders, motors, and other actuators, delivering exceptional precision and control. Key highlights include a compact structure, superior energy efficiency, and the capability for stepless speed control. Moreover, they enable multiple actuators to operate simultaneously under varying loads, offering unparalleled performance and versatility for any application.
The HLPSL valves are expertly tailored for constant displacement pump systems, ensuring steadfast and reliable operation. In contrast, the HLPSV valves are meticulously engineered for variable pump systems. While 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 stand out 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)Basic Code of Connection Block
HLPSL: Constant Displacement Pump;
HLPSV: Variable Displacement Pump;
(2) Port P & R of the Connection Block:
2-G3/8;
3-G1/2;
4-G3/4;
5, 55-G1;
6-G1 1/4;
(3)Additional Component:
C,Standard Type;
G,Throttle Valve (Only used for HLPSL);
H,Fixed Differential Overflow Valve for Enhancing Circulating Pressure (~14 bar, HLPSL);
(4)Pilot Oil Circuit Pressure Options: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, pressurizes pump when powered, unloads pump when unpowered; D - normally closed magnetic ball valve, unloads pump when powered, pressurizes when unpowered; D./F. . , with Pressure Limiting Valve, serves as secondary pressure (F50) with indicated pressure value;
(6)Tool Adjustable, Pressure Limiting Valve in Connection Block: Sets available at 63, 120, 210, 280, 315, 350, 400 bar; /NF: without pressure limiting valve (HLPSV only);
(7)Product Series: -2 series;-3 3 series; -5 5 series;
(8)Thread size of directional spool valve ports A & B crafted for precision: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 options: 1, without inflow controller; 2, standard inflow controller; 4, 3-way flow controllers for both inlet and outlet, perfect for N 3/3-way valve operations; 5, enhanced inflow controller; 8, pre-selectable for custom applications;
(10) Valve core function symbols: L, M, F, H, J, B, R, O, N;
(11) Output flow rate options for ports A & B: Choose from a spectrum of maximum output flows: 3, 6, 10, 16, 25, 40, 63, 80, 120, 160, 210 (L/min);
(12) Secondary pressure limitation configurations: N, no pressure limiting protection; C, simultaneous pressure limits on actuator ports A & B; A---B---, independent pressure limits on actuator ports A & B, measured in bar;
(13) Functionality for ON/OFF and pressure outlet: N, no 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) Modes of operation: A(1,2), manual with long handle (1=without handle, 2=with short handle); E, electric proportional control; EA(1,2), electric proportional control with manual operation (1=without handle, 2=with short handle); D, electric switching value control; DA(1,2), electric switching value control with manual operation (1=without handle, 2=with short handle); M, manual friction positioning with long handle; H, pure hydraulic control (two pilot oil ports aligned with oil ports A and B); F, pure hydraulic control (two pilot oil ports are perpendicular to oil ports A and B and directed outward respectively);
(15) Ancillary block specifications: /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 options: E1, standard end plate, external discharge of pilot oil with external connection to oil return control port T; E2, similar to E1 with additional port Y; E3, external discharge of pilot oil with a mounted 2-position 3-way magnetic ball valve that raises system pressure to safety valve pressure during power supply scenarios;
E4, similar to E1 with internal discharge of pilot oil, port T can be sealed; E5, similar to E2 with internal discharge of pilot oil, port T can be sealed; E6, similar to E3 with internal discharge of pilot oil, port T can be sealed;
(17) Control voltage and anti-explosion type cable lengths: G12-12VDC;G24-24VDC; G24Ex-3m-24VDC; G12Ex-3m-12VDC; G24MA-3m-24VDC; G12bb621436
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 subsidiary of the renowned China Baoan Group (stock code: 000009), we proudly stand as a distinguished national high-tech enterprise. Specializing in the research, development, manufacturing, and sales of top-tier hydraulic components, our esteemed status as a national 'specialized, refined, and innovative' small giant enterprise underscores our unwavering commitment to technological advancement and superior quality. This relentless dedication positions us as vanguards in our field.
Our flagship product, the load-sensitive proportional valve, represents the pinnacle of advanced hydraulic system control. Expertly crafted 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 take immense pride in our strategic collaborations with numerous leading domestic manufacturers, playing a pivotal role in localizing core hydraulic components for high-end mechanical equipment. Guided by our core philosophy-'serving customers with technology, impressing customers with our attitude, and retaining customers with quality'-we are resolute 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 benchmarks 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 carefully designated timeframe allows us to ensure meticulous preparation and stringent quality control, resulting in optimal outcomes and flawless delivery of your products.
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Answer: We offer an exceptionally low minimum order quantity. You can even order a single piece for sample checking to meet your specific needs, providing ultimate flexibility for your projects and ensuring that even small-scale requirements are catered to.
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