Discover the future of hydraulic control with our pioneering HLPSL and HLPSV load-sensitive proportional multi-way directional spool valves. These state-of-the-art engineering wonders seamlessly blend pressure, flow, and directional control into one cohesive unit, ensuring unmatched performance and reliability. Each valve is meticulously crafted from three core functional modules-connecting blocks, directional valves, and end plates-making them indispensable for elite hydraulic systems in premier engineering machinery. These innovative valves expertly direct the movement and speed of hydraulic cylinders, motors, and other actuators, offering unparalleled precision and control. Key features include a compact design, exceptional energy efficiency, and stepless speed control. Moreover, they allow multiple actuators to work simultaneously under varying loads, delivering unrivaled performance and adaptability for any application.
The HLPSL valves are precisely tailored for constant displacement pump systems, ensuring steadfast and reliable operation at all times. On the other hand, the HLPSV valves are ingeniously designed for variable pump systems. While HLPSV valves may have a slightly slower response time, they excel in delivering superior energy efficiency, making them the ideal choice for applications where energy savings are crucial. With their advanced engineering and energy-efficient design, HLPSV valves stand out as the ultimate solution for sophisticated hydraulic control needs.
| 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 Improving the Circulating Pressure (about 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, in case of power supply, the pump is pressurized; in case of power failure, the pump carries out unloading; D: normally closed magnetic ball valve, in case of power supply, the pump carries out unloading; in case of power failure, the pump is pressurized; D../F. . , with Pressure Limiting Valve, it can serve as secondary pressure (F50) with pressure value indicated;
(6)Tool Adjustable, Pressure Limiting Valve in the Connection Block: Pressure limiting valve sets such as 63, 120, 210, 280, 315, 350, 400 bar; /NF: without pressure limiting valve (only for HLPSV);
(7)Product Series: -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: Select 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: 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, external discharge of pilot oil, connecting oil return control port T externally; E2, similar to E1, external discharge of pilot oil, port Y is additionally attached; 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, internal discharge of pilot oil, port T can be sealed; E5, similar to E2, internal discharge of pilot oil, port T can be sealed; E6, similar to E3, internal discharge of pilot oil, 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; G12bb621436
Since our establishment in 2009, Jiangsu KM Hydraulic Control System Co., Ltd. has emerged as a trailblazer in the hydraulic industry, renowned for our unmatched innovation and exceptional quality. Proudly affiliated with the prestigious China Baoan Group (stock code: 000009) and recognized as a national high-tech enterprise, we excel in the research, development, manufacturing, and sales of superior hydraulic components. Our illustrious status as a national 'specialized, refined, and innovative' small giant enterprise testifies to our relentless dedication to technological progress and excellence. This commitment firmly places us at the forefront of our industry.
Introducing our flagship product: the load-sensitive proportional valve, the epitome of cutting-edge hydraulic system control. Meticulously designed for construction machinery and heavy-duty equipment, this highly adaptable component is vital in critical applications such as emergency rescue operations, tunnel engineering, mining, and municipal service vehicles. Our strategic partnerships with leading domestic manufacturers underscore our pivotal role in localizing core hydraulic components for high-end mechanical equipment. Embodying our core philosophy-'serving customers with technology, impressing customers with our attitude, and retaining customers with quality'-we are steadfast in our mission to provide unparalleled products, services, and solutions. Our vision is to become a globally trusted supplier of premier hydraulic components, setting new standards of excellence worldwide.
Customer Inquiry:1. What is the expected lead time?
Expert Response:Our standard lead time for production is approximately one month from the date of payment receipt. This period ensures that we can meticulously prepare and implement stringent quality control measures, guaranteeing that your products are delivered with flawless precision and excellence.
Customer Inquiry:2. Do you have a minimum order quantity (MOQ) for LED light orders?
Expert Response: We are pleased to offer a highly flexible minimum order quantity. You can order as few as one piece for sample evaluation, allowing unparalleled adaptability to suit your specific project needs.
Customer Inquiry:3. What are the steps to place an order for LED lights?
Expert Response: Initially, please provide us with your detailed requirements or intended application. Subsequently, we will offer a tailored quote aligned with your needs or based on our professional recommendations. Upon agreement, you will validate the provided drawings,drawings,and place a deposit to confirm the order. We will then commence production, ensuring that every specific requirement is adhered to meticulously, delivering an impeccable and customized solution.
Customer Inquiry:4. Can my logo be printed on the product?
Expert Response: Certainly, this is possible. Kindly inform us formally prior to the commencement of production, and confirm the design based on the sample we provide. This ensures that your branding is represented with the utmost precision and quality.
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