Unveiling our state-of-the-art HLPSL and HLPSV load-sensitive proportional multi-way directional spool valves. These cutting-edge devices seamlessly integrate pressure, flow, and directional control, providing unparalleled performance and reliability. Crafted with precision, they are typically composed of three fundamental modules: connecting blocks, directional valves, and end plates. These units are designed to integrate effortlessly into high-end hydraulic systems, essential for elite engineering machinery. They offer precise control over the movement direction and speed of hydraulic cylinders, motors, and other actuators, ensuring exceptional accuracy and management. Key features include a compact structure, exceptional energy efficiency, and the ability to perform stepless speed control. Additionally, they enable multiple actuators to operate concurrently under varying loads, delivering unprecedented performance and adaptability for diverse applications.
The HLPSL valves are meticulously designed for constant displacement pump systems, ensuring consistent and dependable operation. On the other hand, the HLPSV valves are ingeniously crafted for variable pump systems. Although HLPSV valves may have a marginally slower response time, they excel in providing superior energy-saving performance, making them the ideal choice for applications where efficiency is of utmost importance. With their advanced engineering and energy-efficient design, HLPSV valves stand out as the optimal 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 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: 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, enhanced 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: 3, 6, 10, 16, 25, 40, 63, 80, 120, 160, 210 (L/min);
(12) Secondary pressure limitation: N, no pressure limiting protection; C, limit pressure of actuator ports A & B simultaneously; A---B---, limit pressure of actuator ports A & B separately, unit (bar);
(13) Function 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) 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 additionally attached; E3, external discharge of pilot oil, a 2-position 3-way magnetic ball valve mounted; in power supply scenarios, system pressure rises to 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 inception in 2009, Jiangsu KM Hydraulic Control System Co., Ltd. has epitomized groundbreaking innovation and unparalleled excellence in the hydraulic industry. As a prestigious subsidiary of the illustrious China Baoan Group (stock code: 000009), we stand as a distinguished national high-tech enterprise. Specializing in the research, development, manufacturing, and sales of premier 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 pursuit of excellence positions us at the forefront of our field.
Our flagship product, the load-sensitive proportional valve, represents the zenith 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 take immense pride in our strategic collaborations with 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 unwavering in our commitment to delivering outstanding 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 about the lead time?
Response:Our lead time for production is typically one month after receiving payment. This period allows us to meticulously prepare and conduct stringent quality control, ensuring your products are delivered flawlessly and on schedule.
Customer Inquiry:2. Do you have any MOQ limit for LED light orders?
Response: We offer an exceptionally low minimum order quantity. You can even order a single piece for sample checking, providing ultimate flexibility to meet your specific needs and project requirements.
Customer Inquiry:3. How to proceed with an order for LED lights?
Response: To proceed, start by informing us of your detailed requirements or application. We will then provide a customized quote based on your needs or our expert recommendations.Subsequently, confirm the provided drawings,and place a deposit to formalize the order. Finally, we will arrange production, ensuring that every specification is met to perfection for a seamless, tailored solution.
Customer Inquiry:4. Is it OK to print my logo on the product?
Response: Absolutely. Please inform us formally before production begins, and confirm the design based on the sample we provide. This ensures your branding is represented with precision and quality.
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