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 one cohesive unit, securing unbeatable performance and reliability. Typically composed of three crucial functional modules-connecting blocks, directional valves, and end plates-these valves are meticulously engineered for seamless incorporation into high-end hydraulic systems, vital for elite engineering machinery. They expertly govern the movement direction and speed of hydraulic cylinders, motors, and other actuators, offering unparalleled precision and command. Key highlights feature a compact structure, superior energy efficiency, and the capability for stepless speed control. Additionally, they enable multiple actuators to operate simultaneously under varying loads, delivering unmatched performance and versatility for any application.
The HLPSL valves are meticulously tailored for constant displacement pump systems, ensuring reliable and consistent operation. In contrast, the HLPSV valves are masterfully crafted for variable pump systems. While HLPSV valves may exhibit a slightly slower response time, they excel in providing 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 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 Options:
C,Standard Type;
G,Throttle Valve (Only for HLPSL);
H,Fixed Differential Overflow Valve for Optimized Circulating Pressure (approx. 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, when powered, the pump is pressurized; when unpowered, the pump unloads; D: normally closed magnetic ball valve, when powered, the pump unloads; when unpowered, the pump is pressurized; D../F: with Pressure Limiting Valve, serves as secondary pressure (F50) with indicated pressure value;
(6)Tool Adjustable, Pressure Limiting Valve in the Connection Block: Pressure limiting valve settings 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: Maximum output flow of ports A & B (typically select 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; G12MA-3m-12VDC (anti-explosion type, length of guide line: 3m, 5m, 10m, etc.)
Since our inception in 2009, Jiangsu KM Hydraulic Control System Co., Ltd. has swiftly ascended as a paragon of innovation and excellence in the hydraulic industry. As a distinguished member of the China Baoan Group (stock code: 000009), we proudly stand as a beacon of national high-tech enterprise status. Our expertise encompasses the research, development, manufacturing, and sales of premium hydraulic components. Recognized as a national 'specialized, refined, and innovative' small giant enterprise, our unwavering commitment to technological advancement and superior quality has cemented our position as an industry leader.
Our marquee product, the load-sensitive proportional valve, epitomizes the zenith of advanced hydraulic system control. Expertly designed for construction machinery and heavy-duty equipment, this versatile and indispensable component excels in critical applications such as emergency rescue, tunnel engineering, mining, and municipal service vehicles. We take immense pride in our strategic partnerships with leading domestic manufacturers, significantly contributing to the localization of 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'-our unwavering commitment is to deliver exceptional products, services, and solutions. Our mission is to emerge as a globally trusted supplier of premier hydraulic components, consistently setting new standards of excellence worldwide.
Question:1. What about the lead time?
Answer:The lead time for production typically spans one month from the time we receive your payment. This period is meticulously allocated to ensure thorough preparation and rigorous quality control measures are in place, guaranteeing that your products are delivered with impeccable quality.
Question:2. Do you have any MOQ limit for LED light orders?
Answer: We offer unmatched flexibility with an exceptionally low minimum order quantity. You can even order a single piece for sample checking, allowing you to meet your specific project requirements effortlessly.
Question:3. How to proceed with an order for LED lights?
Answer: Begin by informing us of your detailed requirements or application. We will then provide a personalized quote based on your needs or our expert suggestions. Next, you will confirm thedrawings,and place a deposit to formalize the order. Finally, we will arrange production, ensuring that every specification is met with precision, delivering a seamless and customized solution.
Question:4. Is it OK to print my logo on the product?
Answer: Absolutely, it is possible to print your logo on the product. Please inform us formally before production begins and confirm the design based on the sample we provide. This ensures your branding is represented with utmost precision and quality.
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