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 a single, harmonious unit, guaranteeing unmatched performance and reliability. Typically composed of three essential functional modules - connecting blocks, directional valves, and end plates - these valves are meticulously crafted for incorporation into high-end hydraulic systems, pivotal in top-tier engineering machinery. They precisely govern the movement direction and speed of hydraulic cylinders, motors, and other actuators, delivering unparalleled precision and control. Key highlights include a compact structure, superior energy efficiency, and the capability for stepless speed control. Furthermore, they enable multiple actuators to operate simultaneously under varying loads, providing unrivaled performance and versatility for any application.
The HLPSL valves are expertly tailored for constant displacement pump systems, ensuring steadfast and reliable operation. Conversely, the HLPSV valves are masterfully engineered for variable pump systems. While HLPSV valves may exhibit a slightly slower response time, they excel in delivering 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 emerge as the premier 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) Essential Connection Block Codes
HLPSL: Constant Displacement Pump - The key to consistent and reliable performance.;
HLPSV: Variable Displacement Pump - Adaptability and flexibility at its finest.;
(2) Connection Block Ports P & R Specifications - Precision and reliability you can trust::
2-G3/8; Compact and efficient for streamlined operations.
3-G1/2; Robust and dependable.;
4-G3/4; Advanced connectivity for superior control.;
5, 55-G1; Offering a superior flow rate for high-demand applications.;
6-G1 1/4; Delivering unmatched performance in the field.;
(3) Additional Components and Specifications - Elevating system capabilities::
C,Standard Type - A dependable baseline for your needs.;
G,Throttle Valve (For HLPSL only) - Ensuring precision control.;
H,Fixed Differential Overflow Valve for Enhanced Circulating Pressure (~14 bar, HLPSL) - Optimized flow management to enhance performance.;
(4) Pilot Oil Circuit Pressure Options - Customizable pressure control for various applications:0 - No pressure reducing valve; 1 - Pressure reducing valve (20 bar); 2 - Pressure reducing valve (40 bar); Tailored solutions for your specific needs.
(5) 2/2-way Magnetic Ball Valve for System Unloading - Streamlined efficiency and control:C - No magnetic ball valve; F - Normally open magnetic ball valve, pressurizes pump when powered, unloads pump when unpowered; D - Normally closed magnetic ball valve, unloads pump when powered, pressurizes when unpowered;D/F - With pressure limiting valve for secondary pressure (F50) with specified pressure value; Advanced safety measures for secure operations.
(6) Tool Adjustable, Pressure Limiting Valve in Connection Block: Offering adjustable settings at 63, 120, 210, 280, 315, 350, and 400 bar; /NF indicates no pressure limiting valve (applicable to HLPSV only); This ensures optimal pressure control tailored to diverse scenarios.
(7) Product Series Classification - Identifying excellence in innovation:;-2 2 Series; -3 3 Series; -5 5 Series; Expertly tailored to meet every application requirement.
(8)Thread size of directional spool valve ports A & B: Precision options include:2-G3/8; 3-G1/2; 4-G3/4; 5-G1; A choice of ancillary blocks or intermediate transition blocks ZPL 5S(V)/H for hydraulic control shut-off valve;
(9)Directional valve block inflow controller options: Choose from 1, without inflow controller; 2, standard inflow controller; 4, 3-way flow controllers for both inlet and outlet (perfect for N 3/3-way valve); 5, enhanced inflow controller; 8, pre-selectable for customization;
(10) Valve core function symbols: L, M, F, H, J, B, R, O, N; Offering a variety of functional capabilities to meet your needs.
(11) Output flow code for ports A & B: Maximum output flows available in: 3, 6, 10, 16, 25, 40, 63, 80, 120, 160, 210 (L/min);
(12) Secondary pressure limitation options: N, for scenarios with no pressure limiting protection; C, to limit the pressure at actuator ports A & B simultaneously; A---B---, for distinct pressure limitation at actuator ports A & B, 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 modes: A(1,2), manual operation with choice of long handle (1=without handle, 2=with short handle); E, electric proportional control; EA(1,2), combining electric proportional control with manual operation (1=without handle, 2=with short handle); D, electric switching value control; DA(1,2), electric switching value control with manual operation (1=without handle, 2=with short handle); M, manual friction positioning with an elongated handle; H, pure hydraulic control (aligning two pilot oil ports with oil ports A and B); F, pure hydraulic control with pilot oil ports perpendicular to oil ports A and B, extending outward;
(15) Ancillary block port sizes: /2 G3/8; /3 G1/2; /4 G3/4; /5 G1;
(16) End plate options: E1, standard end plate for external discharge of pilot oil, with external oil return control port T; E2, similar to E1 but with an added port Y; E3, featuring external discharge of pilot oil with an integrated 2-position 3-way magnetic ball valve; In power supply scenarios, system pressure elevates to safety valve pressure;
E4, akin to E1, facilitates internal discharge of pilot oil, with a sealable port T; E5, mirrors E2 with internal discharge and sealable port T; E6, mirrors E3 with internal discharge and sealable port T;
(17) Control voltage and anti-explosion type cable length options: G12-12VDC;G24-Choose from a versatile range of voltage configurations, including 24VDC; G24Ex-3m-24VDC; G12Ex-3m-12VDC; G24MA-3m-24VDC; and G to meet your specific needs.12bb621436
Since our inception in 2009, Jiangsu KM Hydraulic Control System Co., Ltd. has illuminated the hydraulic industry with groundbreaking innovation and unparalleled excellence. As a prestigious subsidiary of the esteemed China Baoan Group (stock code: 000009), we proudly stand as a distinguished national high-tech enterprise. Our expertise lies in the meticulous research, development, manufacturing, and sales of premium hydraulic components. Our esteemed designation as a national 'specialized, refined, and innovative' small giant enterprise underscores our unwavering commitment to technological advancement and superior quality. This relentless dedication positions us as frontrunners in our field.
Our flagship product, the load-sensitive proportional valve, epitomizes the pinnacle of advanced hydraulic system control. Expertly engineered for construction machinery and heavy-duty equipment, this versatile component is vital for high-stakes applications such as emergency rescue operations, tunnel engineering, mining, and municipal service vehicles. We take immense pride in our strategic collaborations with numerous leading domestic manufacturers, playing a pivotal role in localizing 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'-we are resolute in our commitment to delivering exceptional products, services, and solutions. Our mission is to ascend as a globally trusted supplier of premier hydraulic components, setting new benchmarks of excellence worldwide.
Customer Inquiry:1. What about the lead time for delivery?
Response:Our standard lead time is generally about one month after we receive your payment. This timeframe is crucial for us to engage in thorough preparation and implement our rigorous quality control protocols. We pay attention to every detail, ensuring your products arrive with impeccable precision and quality.
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