Introducing our groundbreaking HLPSL and HLPSV load-sensitive proportional multi-way directional spool valves. These revolutionary engineering creations represent the pinnacle of hydraulic innovation, seamlessly integrating pressure, flow, and directional control into a singular, harmonious masterpiece. This guarantees unparalleled performance and reliability in every application. Typically composed of three essential functional modules - connecting blocks, directional valves, and end plates - these valves are meticulously crafted for integration into high-end hydraulic systems, crucial for top-tier engineering machinery. They precisely govern the movement direction and speed of hydraulic cylinders, motors, and other actuators, delivering unmatched precision and control. Key highlights encompass a compact structure, superior energy efficiency, and the capability for stepless speed control. Beyond this, they empower multiple actuators to operate simultaneously under varying loads, delivering unrivaled performance and versatility for any application.
The HLPSL valves are expertly tailored for constant displacement pump systems, ensuring steadfast and reliable operation in every setting. On the other hand, 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 stand out as the premier solution for advanced hydraulic control requirements, offering a perfect blend of precision, reliability, and efficiency.
| 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 keystone of reliability, delivering consistent and steadfast performance to ensure smooth and efficient operations throughout your system. This vital component underpins the entire hydraulic setup, promising unyielding dependability.;
HLPSV: Variable Displacement Pump - A paragon of adaptability and versatility, providing extraordinary flexibility to accommodate a wide range of operational requirements. This pump is the epitome of customization, adeptly adjusting to your system's dynamic demands.;
(2) Connection Block Ports P & R Specifications - Precision meets reliability, forging a trustworthy operational framework, engineered for optimal performance and seamless integration::
2-G3/8; Crafted for compact proficiency, designed to support streamlined and seamless operational flows. A testament to efficiency, perfectly suited for tight spaces and precise operations.
3-G1/2; Engineered for robustness and reliability, providing a solid base for your system's integrity. These ports ensure unwavering strength and steadfast support.;
4-G3/4; Featuring advanced connectivity, offering superior control and enhanced system integration. This option facilitates effortless interfacing with other components for maximum efficacy.;
5, 55-G1; Equipped with superior flow rates, ideal for high-demand applications, ensuring consistent and reliable performance. Designed to handle significant loads, this port is the cornerstone of heavy-duty functionality.;
6-G1 1/4; Delivering unmatched performance, expertly designed to excel in demanding environments and tackle challenges effortlessly. Its resilience and power make it an indispensable asset in challenging conditions.;
(3) Additional Components and Specifications - Elevating system capabilities to unprecedented heights, solidifying your system's prowess and operational excellence::
C,Standard Type - A reliable and trusted foundation, meticulously designed to meet essential operational requirements, ensuring your system's stability and foundational strength.;
G,Throttle Valve (For HLPSL only) - Guarantees precision control, enhancing the overall efficiency of your system. This component is crucial for fine-tuning and achieving desired fluid dynamics.;
H,Fixed Differential Overflow Valve for Enhanced Circulating Pressure (~14 bar, HLPSL) - Maximizes flow management, driving unparalleled performance and dependability. It offers superior regulation to maintain optimal pressure conditions.;
(4) Pilot Oil Circuit Pressure Options - Offering bespoke pressure control solutions for diverse applications, ensuring precision and adaptability for varying operational scenarios:0 - No pressure reducing valve; 1 - Pressure reducing valve (20 bar); 2 - Pressure reducing valve (40 bar); Providing tailored solutions to seamlessly meet your specific operational demands and ensure ideal pressure conditions.
(5) 2/2-way Magnetic Ball Valve for System Unloading - Enhancing efficiency and control, this component delivers dynamic adjustment capabilities:C - No magnetic ball valve; F - Normally open magnetic ball valve, pressurizing the pump when powered, unloading it when unpowered; D - Normally closed magnetic ball valve, unloading the pump when powered, pressurizing it when unpowered; Designed for seamless transition and optimal system management, these options cater to diverse needs with precision.D/F - This innovation is adorned with a precision-engineered pressure limiting valve tailored for secondary pressure (F50) with a well-defined pressure value. This state-of-the-art feature ensures unparalleled safety measures, elevating operational security and reliability to new heights.
(6) Tool Adjustable, Pressure Limiting Valve in Connection Block: Elevate your experience with versatility and precision through adjustable settings at 63, 120, 210, 280, 315, 350, and 400 bar levels. This component exemplifies adaptability, meeting every hydraulic need. For streamlined configurations, /NF signifies no pressure limiting valve, meticulously crafted for HLPSV, ensuring impeccable pressure management across a wide array of applications.
(7) Product Series Classification - The Pinnacle of Engineering Excellence:;-2 2 Series; -3 3 Series; -5 5 Series; Each series is a marvel of design, meticulously crafted to meet every application, ensuring you receive a product perfectly aligned with your specific requirements.
(8)Thread size of directional spool valve ports A & B:2-G3/8; 3-G1/2; 4-G3/4; 5-G1; encompassing ancillary blocks or the intermediate transition block ZPL 5S(V)/H hydraulic control shut-off valve, precisely engineered for seamless and smooth integration.
(9)Directional valve block inflow controller options: Select from a versatile range: 1, without inflow controller; 2, standard inflow controller; 4, advanced 3-way flow controller for both inlet and outlet, tailored for the N 3/3-way valve; 5, enhanced inflow controller; 8, pre-selectable options, each delivering precision and remarkable efficiency.
(10) Valve core function symbols: Explore an extensive suite of core functions: L, M, F, H, J, B, R, O, N, each meticulously crafted to fulfill specific functional demands with precision.
(11) Output flow code for ports A & B: Attain peak efficiency with available peak output flows: 3, 6, 10, 16, 25, 40, 63, 80, 120, 160, 210 L/min, each engineered for superior performance and reliability.
(12) Secondary pressure limitation options: Choose from: N, no pressure limiting protection; C, simultaneous pressure limitation of actuator ports A & B; A---B---, independent pressure limitation for ports A & B, all measured in bar, ensuring uncompromising system safety.
(13) Function ON/OFF and pressure outlet options: Tailor these to your needs with options like: N, without function ON/OFF or 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, each designed for precise control and functionality.
(14) Operation modes: Choose from diverse operation modes: A(1,2), manual operation with optional long or short handle; E, electric proportional control; EA(1,2), blending electric proportional control with manual operation; D, electric switching value control; DA(1,2), combined electric switching value control and manual operation; M, manual friction positioning with long handle; H, pure hydraulic control (alignment of pilot oil ports with oil ports A and B); F, pure hydraulic control with perpendicular pilot oil ports, crafted for comprehensive and precise control.
(15) Ancillary block port sizes: Opt for adaptable options: /2 G3/8; /3 G1/2; /4 G3/4; /5 G1, expertly engineered for seamless adaptability and integration.
(16) End plate options: Experience our meticulously crafted end plate solutions, designed to meet the highest standards of excellence. Choose E1 for a standard setup, offering an external discharge of pilot oil and a control port T for external oil return. Opt for E2, which builds on E1's design with the integration of an additional port Y for enhanced functionality. Our E3 option introduces a 2-position 3-way magnetic ball valve, elevating your system's capabilities by boosting pressure to safety valve levels when activated.
For those seeking innovation, E4 mirrors E1 in its foundational design but revolutionizes it with an internal discharge of pilot oil and a sealed port T, providing a streamlined and efficient solution. E5 follows the footsteps of E2 while incorporating an internal discharge for greater efficiency. E6 reflects the advanced design of E3, with each variant carefully engineered to ensure superior discharge control, tailored to meet your operational needs.
(17) Control voltage and anti-explosion cable options: Secure your systems with our robust range of control voltage and anti-explosion cable options. Select from our G12-12VDC for a specialized solution that guarantees safety in high-demand applications.G24-24VDC; G24Ex-3m-24VDC; G12Ex-3m-12VDC; G24MA-3m-24VDC; G12bb621436
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 enhanced Safety Atex Valve represents our pinnacle offering, the highly acclaimed load-sensitive proportional valve, which exemplifies the zenith of hydraulic system control technology. Meticulously crafted for construction machinery and demanding heavy-duty equipment, this versatile component proves indispensable in critical applications such as emergency rescue operations, tunnel engineering, mining, and municipal service vehicles. We are immensely proud of our strategic partnerships with numerous leading 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 steadfast 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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