Introducing the pinnacle of hydraulic innovation: the HLPSL and HLPSV load-sensitive proportional multi-way directional spool valves. Crafted with precision, these engineering masterpieces seamlessly integrate pressure, flow, and direction control into a single, harmonious unit, ensuring unparalleled performance and reliability. Typically composed of three fundamental modules-connecting blocks, directional valves, and end plates-these valves are meticulously engineered for the hydraulic systems of elite engineering machinery. They expertly orchestrate the movement direction and speed of hydraulic cylinders, motors, and other actuators, guaranteeing exceptional precision and control. Key features include a compact structure, remarkable energy efficiency, and the ability for stepless speed control. Moreover, they empower multiple actuators to operate in synchrony under diverse loads, delivering stellar performance and versatility for any application.
The HLPSL valves are expertly optimized for constant displacement pump systems, ensuring unwavering and reliable performance. Contrastingly, the HLPSV valves are meticulously designed for variable pump systems. Though HLPSV valves may exhibit a marginally slower response time, they shine in delivering superior energy-saving performance, making them the ideal choice for applications where efficiency is of the essence. With their cutting-edge engineering and energy-efficient design, HLPSV valves distinguish themselves as the premier solution for advanced hydraulic control demands.
| 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: 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; G12d4507686
Since our inception in 2009, Jiangsu KM Hydraulic Control System Co., Ltd. has stood as a beacon of innovation and excellence within the hydraulic industry. As an esteemed member of the China Baoan Group (stock code: 000009), and honored as a national high-tech enterprise, we excel in the research, development, manufacturing, and sales of superior hydraulic components. Our recognition extends to being designated as a national 'specialized, refined, and innovative' small giant enterprise, underlining our unwavering commitment to technological advancement and unparalleled quality.
Our flagship product, the load-sensitive proportional valve, represents the pinnacle of advanced hydraulic system control. Specifically 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 immense pride in our collaborations with numerous prominent domestic manufacturers, significantly contributing to the localization of core hydraulic components for high-end mechanical equipment. Guided by our core philosophy of 'serving customers with technology, impressing customers with our attitude, and retaining customers with quality,' we are unwavering in our dedication 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 we receive the payment. This timeline is dedicated to ensuring thorough preparation and impeccable quality control.
Question:2. Do you have any MOQ limit for LED light orders?
Answer: We offer an extraordinarily low minimum order quantity; you can even request a single piece for sample checking, tailored to accommodate your specific needs.
Question:3. How to proceed with an order for LED lights?
Answer: First, inform us of your specific requirements or application. Second, we will provide a customized quote based on your requirements or our expert suggestions. Third, you confirm thedrawings,and place a deposit to formalize the order. Finally, we will arrange the production, ensuring that 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 to your satisfaction.
){kind=link}