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)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: Adjustable 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 options: 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 for tailored needs;
(10) Function symbol of valve core: Choose from L, M, F, H, J, B, R, O, N for precise functionality;
(11) Output flow code of ports A & B: Select from maximum output flows for ports A & B: 3, 6, 10, 16, 25, 40, 63, 80, 120, 160, 210 (L/min) to meet diverse application needs;
(12) Secondary pressure limitation: N, no pressure limiting protection; C, simultaneous pressure limitation for actuator ports A & B; A---B---, separate pressure limitation for actuator ports A & B, 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 for enhanced control;
(14) Operation manner: A(1,2), manual operation with long or short handle (1=without handle, 2=with short handle); E, electric proportional control; EA(1,2), electric proportional control with optional manual operation; D, electric switching value control; DA(1,2), electric switching value control with optional manual operation; 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 for various installation needs;
(16) End plate: E1, standard end plate, external discharge of pilot oil with external connection of oil return control port T; E2, similar to E1 with additional port Y for enhanced functionality; E3, external discharge of pilot oil with a 2-position 3-way magnetic ball valve, elevating system pressure to safety valve pressure in 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 the length of anti-explosion type cable: Available options include G12-12VDC; G24-24VDC; G24Ex-3m-24VDC; G12Ex-3m-12VDC; G24MA-3m-24VDC;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 member of the China Baoan Group (stock code: 000009), we proudly stand as a national high-tech enterprise. Specializing in the research, development, manufacturing, and sales of premium hydraulic components, our distinguished status as a national 'specialized, refined, and innovative' small giant enterprise underscores our unwavering commitment to technological advancement and superior quality. Our dedication firmly positions us as leaders in our field.
Our flagship product, the Load Sensitive Valve with Atex Features for Enhanced Safety Technology, epitomizes the pinnacle of advanced hydraulic system control. Expertly engineered for construction machinery and heavy-duty equipment, this versatile and adaptable component is indispensable in critical applications such as emergency rescue operations, tunnel engineering, mining, and municipal service vehicles. We take pride in our strategic collaborations with numerous leading domestic manufacturers, playing a crucial 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.
Customer Inquiry:1. What is the typical lead time for your products?
Our Response:The standard lead time for production is approximately one month from the receipt of payment. This period ensures rigorous preparation and stringent quality assurance measures, guaranteeing that your products are delivered with impeccable quality and precision.
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Our Response: We offer unparalleled flexibility with a very low minimum order quantity, allowing even single-piece orders for sample verification. This adaptability ensures you have the freedom to meet your project's specific requirements without constraints.
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Our Response: Certainly, this is possible. Please formally inform us before production starts, and confirm the logo design based on the sample we provide. This ensures that your branding is showcased with the highest level of precision and quality.
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