Introducing the state-of-the-art HLPSL and HLPSV load-sensitive proportional multi-way directional spool valves, the pinnacle of hydraulic control technology. These engineering marvels seamlessly integrate pressure, flow, and direction control into one cohesive unit, ensuring peak performance and unmatched reliability. Typically composed of three essential functional modules-connecting blocks, directional valves, and end plates-these valves are tailored for top-tier engineering machinery hydraulic systems. Expertly managing the movement direction and speed of hydraulic cylinders, motors, and other actuators, they guarantee precision and control. Key features include: 1. A compact and robust structure ensuring durability and space efficiency. 2. Exceptional energy efficiency that enhances operational cost savings. 3. Capability for stepless speed control, providing smooth and precise adjustments. 4. Enabling multiple actuators to operate in unison under varying loads, delivering unparalleled performance and versatility for any application. These valves are ideal for those seeking cutting-edge technology combined with practical functionality.
The HLPSL valves are meticulously tailored for constant displacement pump systems, ensuring consistent and reliable operation. On the other hand, the HLPSV valves are expertly engineered for variable pump systems. Despite a slightly slower response time, HLPSV valves excel in delivering superior energy-saving performance, making them the optimal choice where efficiency is of utmost importance. With advanced engineering and a focus on energy efficiency, HLPSV valves are the premier solution for sophisticated hydraulic control needs. Their unparalleled design and function make them stand out in applications requiring top-tier performance and reliability.
| 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, 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: Maximum output flow of ports A & B (typically chosen from 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 emerged as a hallmark of innovation and excellence in the hydraulic sector. As a proud member of the prestigious China Baoan Group (stock code: 000009) and recognized as a national high-tech enterprise, we specialize in the research, development, manufacturing, and sales of top-tier hydraulic components. Our prestigious designation as a national 'specialized, refined, and innovative' small giant enterprise underscores our steadfast commitment to technological advancement and unmatched quality.
Our flagship product, the load-sensitive proportional valve, represents the zenith of hydraulic system control technology. Meticulously crafted for construction machinery and heavy-duty equipment, this versatile and indispensable component excels in critical applications, including emergency rescue operations, tunnel engineering, mining, and municipal service vehicles. We take immense pride in our partnerships with numerous leading domestic manufacturers, significantly advancing the localization of core hydraulic components for high-end mechanical equipment. Driven by our core philosophy of 'serving customers with technology, impressing customers with our attitude, and retaining customers with quality,' we remain unwavering in our commitment to delivering exceptional products, services, and solutions. Our mission is to ascend as a globally trusted supplier of premier hydraulic components.
Question:1. What about the lead time?
Answer:The lead time for production is typically one month after the payment has been received, ensuring thorough preparation and impeccable quality control.
Question:2. Do you have any MOQ limit for LED light orders?
Answer: We offer an extremely low minimum order quantity; even a single piece for sample checking is available to fully accommodate your needs.
Question:3. How to proceed with an order for LED lights?
Answer: First, share your specific requirements or application. Second, we will provide a customized quote or our expert suggestions. Third, you confirm thedrawings,and place a deposit to formalize the order. Finally, we will arrange the production, ensuring all your specifications are meticulously met.
Question:4. Is it OK to print my logo on the product?
Answer: Absolutely, it is possible. Please inform us formally before production starts and confirm the design based on the sample we provide, ensuring your branding is perfectly represented.
){kind=link}