We proudly present the revolutionary HLPSL and HLPSV load-sensitive proportional multi-way directional spool valves. These precision-engineered wonders flawlessly combine pressure, flow, and direction control into a single, unified system, guaranteeing unparalleled performance and reliability. Comprising three critical functional modules-connecting blocks, directional valves, and end plates-these valves are purpose-built for hydraulic systems in elite engineering machinery. They adeptly manage the movement, direction, and speed of hydraulic cylinders, motors, and other actuators, ensuring unmatched precision and control. Standout features include a compact structure, superior energy efficiency, and the ability for stepless speed control. Additionally, they empower multiple actuators to operate harmoniously under diverse loads, delivering extraordinary performance and versatility across all applications.
The HLPSL valves are meticulously crafted for constant displacement pump systems, ensuring unwavering and dependable operation. On the other hand, the HLPSV valves are ingeniously designed for variable pump systems. While the HLPSV valves may have a slightly slower response time, they excel in offering exceptional energy-saving performance, making them the ideal choice for applications where efficiency is of utmost importance. With their cutting-edge engineering and energy-efficient design, HLPSV valves emerge as the ultimate solution for advanced hydraulic control requirements.
| 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)Fundamental Code for Connection Block
HLPSL: Constant Displacement Pump;
HLPSV: Variable Displacement Pump;
(2) Port P & R Specifications for Connection Block:
2-G3/8;
3-G1/2;
4-G3/4;
5, 55-G1;
6-G1 1/4;
(3)Additional Components:
C,Standard Type;
G,Throttle Valve (Exclusive for HLPSL);
H,Fixed Differential Overflow Valve for Enhanced 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 (Pressurized in Case of Power Supply, Unloading in Case of Power Failure); D: Normally Closed Magnetic Ball Valve (Unloading in Case of Power Supply, Pressurized in Case of Power Failure); D../F. . , With Pressure Limiting Valve, It Can Serve as Secondary Pressure (F50) with Pressure Value Indicated;
(6)Tool Adjustable Pressure Limiting Valve in 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 emerged as a paragon of innovation and excellence in the hydraulic industry. As a proud member of the China Baoan Group (stock code: 000009), and distinguished as a national high-tech enterprise, we specialize in the research, development, manufacturing, and sales of elite hydraulic components. Our accolades include being named a national 'specialized, refined, and innovative' small giant enterprise, signifying our relentless pursuit of technological progress and unrivaled quality.
Our flagship product, the load-sensitive proportional valve, represents the zenith of advanced hydraulic system control, meticulously designed for construction machinery and heavy-duty equipment. This indispensable component is vital in pivotal applications such as emergency rescue operations, tunnel engineering, mining, and municipal service vehicles. We are proud partners with numerous leading domestic manufacturers, playing a crucial role in the localization of core hydraulic components for high-end mechanical equipment. Anchored by our core philosophy of 'serving customers with technology, impressing customers with our attitude, and retaining customers with quality,' we remain steadfast in our commitment to providing exceptional products, services, and solutions. Our vision 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 payment has been received, ensuring meticulous preparation and stringent quality control measures.
Question:2. Do you have any MOQ limit for LED light orders?
Answer: We offer an exceptionally low minimum order quantity; even a single piece for sample checking is available to meet your 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 tailored quote based on your needs or our expert recommendations. Third, you confirm thedrawings,and place a deposit to formalize the order. Finally, we will arrange the production, ensuring 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 begins and confirm the design based on the sample we provide, ensuring your branding is accurately represented.
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