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 - A pivotal element for unwavering and dependable performance.;
HLPSV: Variable Displacement Pump - Adaptability and flexibility at its finest, redefining operational excellence.;
(2) Connection Block Ports P & R Specifications - Precision and reliability you can trust::
2-G3/8; Compact and efficient, enhancing streamlined operations.
3-G1/2; Robust and dependable for all your demanding needs.;
4-G3/4; Advanced connectivity for superior control in complex systems.;
5, 55-G1; Providing an exceptional flow rate suited for high-demand applications.;
6-G1 1/4; Delivering unmatched performance, even in the toughest field conditions.;
(3) Additional Components and Specifications - Elevating system capabilities to new heights::
C,Standard Type - A reliable baseline tailored for your essential needs.;
G,Throttle Valve (For HLPSL only) - Ensuring precision control with every operation.;
H,Fixed Differential Overflow Valve for Enhanced Circulating Pressure (~14 bar, HLPSL) - Optimized flow management for peak performance.;
(4) Pilot Oil Circuit Pressure Options - Customizable pressure control to meet diverse applications:0 - No pressure reducing valve; 1 - Pressure reducing valve (20 bar); 2 - Pressure reducing valve (40 bar); Tailored solutions for your specific needs, elevating every project.
(5) 2/2-way Magnetic Ball Valve for System Unloading - Streamlined efficiency and control for superior results: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 ensure secure operations at every level.
(6) Experience unparalleled adaptability with our Tool Adjustable Pressure Limiting Valve, seamlessly integrated within the Connection Block. Offering adjustable settings tailored to specific needs at 63, 120, 210, 280, 315, 350, and 400 bar, this valve ensures precision in pressure control across diverse scenarios. Choose /NF for models without pressure limiting valve (HLPSV only), for a streamlined solution.
(7) Product Series Classification - Where Excellence Meets Innovation:;-2 2 Series; -3 3 Series; -5 5 Series; Each series is meticulously engineered to meet unique application demands.
(8)Thread size of directional spool valve ports A & B: Precision-crafted options include:2-G3/8; 3-G1/2; 4-G3/4; 5-G1; For enhanced functionality, consider integrating with our ancillary block or the intermediate transition block ZPL 5S(V)/H hydraulic control shut-off valve.
(9)Directional valve block inflow controller options: Choose from a variety of controller configurations to suit your needs: 1 offers a valve block devoid of an inflow controller; 2 introduces our standard inflow controller; 4 provides 3-way flow control for both inlet and outlet - perfect for N 3/3-way valves; 5 features a reinforced inflow controller, while 8 allows for pre-selection.
(10) Valve core function symbols: L, M, F, H, J, B, R, O, N - each symbol represents unique operational capabilities.
(11) Output flow code for ports A & B: Elevate your system's efficiency with available maximum output flows: 3, 6, 10, 16, 25, 40, 63, 80, 120, 160, 210 (L/min); ensuring peak performance.
(12) Secondary pressure limitation options: Tailor your pressure protection with: N for systems without pressure limiting; C for simultaneous pressure limitation at actuator ports A & B; A---B--- for independent pressure limitation at actuator ports A & B, designated in bars.
(13) Function ON/OFF and pressure outlet options: Customize your system with N for no function; X offers C type pressure limitation; S/S1 provides AB type pressure limitation; choose A for electrical ON/OFF on side A; B for side B.
(14) Operation modes: Explore a diverse range of control modes. A(1,2) provides manual operation with handle options; E delivers electric proportional control; EA(1,2) combines electric control with manual operation; D supports electric switching value control; DA(1,2) merges switching value control with manual operation; M offers manual friction positioning; H and F present pure hydraulic control with strategic pilot oil port placements.
(15) Ancillary block port sizes: Choose precision with sizes like /2 G3/8; /3 G1/2; /4 G3/4; /5 G1; designed for seamless integration.
(16) End plate options: E1 offers a standard end plate with external discharge; E2 adds a port Y; E3 includes a 2-position 3-way magnetic ball valve, creating a secure environment when power is applied by raising system pressure to safety levels.
E4 through E6 provide similar functional benefits with an internal discharge of pilot oil, giving you the flexibility to seal port T for enhanced control.
(17) Control voltage and the length of anti-explosion type cable options: G12-12VDC; For your diverse operational needs, our Hawe PSV Valve offers a range of adaptable control voltages, ensuring maximum compatibility and performance in safety-critical mining environments.G24 - Seamlessly integrate with our G24 control voltage, designed for robust and reliable operations in demanding hydraulic systems.-24VDC; G24Ex-3m-24VDC; G12Ex-3m-12VDC; G24MA-3m-24VDC; G - Experience unparalleled flexibility with our cable options, tailored for anti-explosion protection across varied operational settings.12 - Elevate your equipment's integrity with our 12VDC configurations, curated for precision and efficiency in control systems.bb621436
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 a prestigious subsidiary of the renowned 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 indispensable component is vital for high-stakes applications, including 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.
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