Presenting the cutting-edge HLPSL and HLPSV Load-Sensitive Proportional Multi-Way Directional Spool Valves, precision-engineered for unparalleled performance in the most demanding hydraulic systems. These sophisticated valves seamlessly amalgamate pressure, flow, and direction control into a unified, high-performance unit. Comprising three pivotal functional modules-connecting blocks, directional valves, and end plates-these valves are masterfully crafted for elite engineering machinery, ensuring precise management of hydraulic cylinders, motors, and other actuators. Key attributes include a compact design, remarkable energy efficiency, and the capability for stepless speed regulation. Additionally, they facilitate the concurrent operation of multiple actuators under varied loads, providing exceptional versatility and performance across diverse applications.
The HLPSL valves are meticulously optimized for constant displacement pump systems, delivering unwavering performance and reliability. Conversely, the HLPSV valves are ingeniously designed for variable pump systems. Although HLPSV valves may exhibit a marginally slower response time, they excel in providing superior energy-saving performance, making them the quintessential choice for applications where efficiency is of utmost importance. With their state-of-the-art engineering and energy-efficient design, HLPSV valves emerge as the premier solution for sophisticated 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;Series Options: -3 3 series; -5 5 series;
(8)Thread Size Specifications for 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;
(10) Valve Core Function Symbols: L, M, F, H, J, B, R, O, N;
(11) Output Flow Code for Ports A & B: Maximum output flow for Ports A & B (typically choose from 3, 6, 10, 16, 25, 40, 63, 80, 120, 160, 210 L/min);
(12) Secondary Pressure Limitation Options: N, no pressure limiting protection; C, limits the pressure of actuator ports A & B simultaneously; A---B---, limits the pressure of actuator ports A & B separately (unit: bar);
(13) Function ON/OFF and Pressure Outlet Options: 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 Port Sizes: /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 Options: 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 & Cable Length for Anti-Explosion Type: G12-12VDC;G24-24VDC; G24Ex-3m-24VDC; G12Ex-3m-12VDC; G24MA-3m-24VDC; G12140817ef
Since our inception in 2009, Jiangsu KM Hydraulic Control System Co., Ltd. has been 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, epitomizes advanced hydraulic system control, specifically engineered for construction machinery and heavy-duty equipment. This adaptable component is indispensable in emergency rescue operations, tunnel engineering, mining applications, and municipal service vehicles. We proudly collaborate 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 become a globally trusted supplier of premier hydraulic components.
Question1. What about the lead time?
Answer:The lead time for production is typically one month after payment has been received.
Question2. Do you have any MOQ limit for LED light orders?
Answer: We offer a low minimum order quantity; even a single piece for sample checking is available.
Question3. How to proceed with an order for LED lights?
Answer: To initiate an order, please provide your specific requirements or application details. We will then offer a tailored quote based on your specifications or our expert suggestions. Upon your confirmation of the drawings and placement of the deposit, the order will be formalized, and we will proceed with production.drawings and place a deposit to formalize the order. Finally, we will arrange the production.
Question4. Is it OK to print my logo on the product?
Answer: Absolutely. You can have your logo printed on the product. Please inform us formally before production starts and confirm the design based on the sample we provide.
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