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 - This pump is the backbone of flawless and steady operations, ensuring your systems function with unrivaled reliability and efficiency.;
HLPSV: Variable Displacement Pump - A paradigm of adaptability, offering unmatched versatility to accommodate the most varied operational demands.;
(2) Connection Block Ports P & R Specifications - Merging precision with steadfast reliability, designed for operations you can trust::
2-G3/8; Meticulously crafted for space-efficient performance, facilitating smooth, uninterrupted workflows.
3-G1/2; Engineered for robustness, establishing a trusted cornerstone for your hydraulic operations.;
4-G3/4; Ensures superior connectivity, providing refined control and improved system integration.;
5, 55-G1; Ideal for high-demand settings, offering exceptional flow rates to guarantee consistent system performance.;
6-G1 1/4; Designed for excellence in performance, overcoming operational challenges with confidence.;
(3) Additional Components and Specifications - Elevating your lifting systems to unparalleled heights::
C,Standard Type - A robust and dependable choice, perfectly suited to meet your fundamental operational requirements.;
G,Throttle Valve (For HLPSL only) - Enhances precision control, maximizing overall system efficiency.;
H,Fixed Differential Overflow Valve for Enhanced Circulating Pressure (~14 bar, HLPSL) - Elevates flow management, ensuring outstanding performance and reliability.;
(4) Pilot Oil Circuit Pressure Options - Tailored pressure control for diverse applications:0 - No pressure reducing valve; 1 - Pressure reducing valve (20 bar); 2 - Pressure reducing valve (40 bar); Thoughtfully designed to seamlessly meet your specific operational requirements.
(5) 2/2-way Magnetic Ball Valve for System Unloading - Enhancing efficiency and elevating control:C - No magnetic ball valve; F - Normally open magnetic ball valve, activating pump pressure when powered, reducing it when unpowered; D - Normally closed magnetic ball valve, reducing pump pressure when powered, activating it when unpowered;D/F - Featuring a pressure limiting valve for secondary pressure (F50) with a specified pressure value, this component ensures the highest level of safety and security in operational settings.
(6) Tool Adjustable, Pressure Limiting Valve in Connection Block: Experience the ultimate in versatility and precision with adjustable settings available at 63, 120, 210, 280, 315, 350, and 400 bar levels. For those seeking simplicity, /NF signifies no pressure limiting valve, specially crafted for HLPSV. This feature is vital for maintaining optimal pressure control, catering to an array of hydraulic applications with unmatched reliability.
(7) Product Series Classification - Embodying the Pinnacle of Excellence:;-2 2 Series; -3 3 Series; -5 5 Series; Each series is crafted with meticulous attention to detail, ensuring that every product is precisely aligned with your specific application needs.
(8)Thread size of directional spool valve ports A & B:2-G3/8; 3-G1/2; 4-G3/4; 5-G1; including ancillary blocks or the intermediate transition block ZPL 5S(V)/H hydraulic control shut-off valve, engineered for flawless integration and performance.
(9)Directional valve block inflow controller options: Choose from a variety of options: 1, without inflow controller; 2, standard inflow controller; 4, an advanced 3-way flow controller for both inlet and outlet, perfect for the N 3/3-way valve; 5, reinforced inflow controller; 8, pre-selectable options, each engineered to deliver precision and efficiency.
(10) Valve core function symbols: Discover an extensive selection of core functions: L, M, F, H, J, B, R, O, N, each consciously designed to meet distinct functional demands.
(11) Output flow code for ports A & B: Enhance your system's efficiency with customizable maximum output flows: 3, 6, 10, 16, 25, 40, 63, 80, 120, 160, 210 L/min, tailored for superior performance.
(12) Secondary pressure limitation options: Select from: N, no pressure limiting protection; C, simultaneous pressure limitation of actuator ports A & B; A---B---, independent pressure limitation for ports A & B, each measured in bar, providing a robust safety net for your system.
(13) Function ON/OFF and pressure outlet options: Tailor your control with customizable options: 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 exacting precision.
(14) Operation modes: Access a diverse range of operation modes: A(1,2), manual operation with either long or short handle; E, electric proportional control; EA(1,2), a fusion of electric proportional control and 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, purely hydraulic control (alignment of pilot oil ports with oil ports A and B); F, purely hydraulic control with perpendicular pilot oil ports, all engineered for comprehensive control.
(15) Ancillary block port sizes: Choose from a range of versatile options: /2 G3/8; /3 G1/2; /4 G3/4; /5 G1, meticulously crafted for seamless adaptability and integration.
(16) End Plate Options: Discover a range of custom-tailored end plate configurations, including: E1, the standard choice, featuring an external discharge of pilot oil coupled with an external oil return control port T. E2, similar to E1, yet enhanced with an additional port Y for greater versatility. E3, equipped with a cutting-edge 2-position 3-way magnetic ball valve that significantly elevates system pressure to optimal safety valve levels upon power supply activation.
E4, designed akin to E1, but boasting an internal discharge of pilot oil, expertly sealing port T. E5, mirroring E2, yet with the advantage of an internal discharge system. E6, comparable to E3, each meticulously engineered to ensure precise and sophisticated discharge control.
(17) Control Voltage and Anti-Explosion Cable Length Options: Choose from a curated selection of options such as G12-12VDC, meticulously designed to ensure maximum safety and flawless compatibility with specialized 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 been a beacon of innovation and excellence in the hydraulic industry. As a prestigious subsidiary of the renowned China Baoan Group (stock code: 000009), we are proud to be recognized as a national high-tech enterprise of distinction. Our core expertise encompasses the precise research, development, manufacturing, and sales of top-tier hydraulic components. Our esteemed status as a national 'specialized, refined, and innovative' small giant enterprise reflects our unyielding commitment to technological advancement and the highest quality standards. This unwavering dedication solidifies our leadership position within the industry.
Our flagship innovation, the load-sensitive proportional valve, stands as the quintessence of state-of-the-art hydraulic system control. Meticulously engineered for construction machinery and heavy-duty applications, this adaptable component is indispensable for critical operations such as emergency rescue, tunnel engineering, mining, and municipal service vehicles. We take great pride in our strategic alliances with a multitude of leading domestic manufacturers, significantly contributing to the localization of essential hydraulic components for high-end mechanical equipment. Driven by our core philosophy-'serving customers with technology, impressing with our attitude, and retaining with quality'-we are steadfast in our resolve to deliver unparalleled products, services, and solutions. Our ambition is to rise as a globally trusted provider of premier hydraulic components, setting new standards of excellence on the world stage.
Question:1. What about the lead time?
Answer:The lead time for production typically spans one month after receiving payment. Within this period, our team is dedicated to meticulously preparing and executing rigorous quality control procedures, ensuring each product is delivered to you in flawless condition. We strive for excellence, making your complete satisfaction with our punctual and impeccable delivery our paramount goal.
Question:2. Do you have any MOQ limit for LED light orders?
Answer: We proudly offer an exceptionally low minimum order quantity, granting you the flexibility to order as few as one piece for sample verification. This customer-centric approach allows you to launch your projects with unparalleled ease and precision, accommodating your specific needs without any constraints.
Question:3. How to proceed with an order for LED lights?
Answer: Begin the process by providing us with a comprehensive overview of your requirements or the intended applications. Subsequently, we will craft a personalized quote tailored to your specifications or offer guidance through our expert advice. Once you approve the drawings and secure the order with a deposit, production will commence. Every specification is matched with precise execution, delivering a bespoke solution designed to exceed your expectations.drawings,and place a deposit to formalize the order. Ultimately, we will organize production, guaranteeing that every detail is executed to perfection for a seamless and tailored solution.
Question:4. Is it OK to print my logo on the product?
Answer: Certainly, this is entirely feasible. Please ensure you notify us formally prior to the commencement of production and confirm the design based on the sample we provide. This guarantees that your branding is represented with the highest degree of precision and superior quality, truly capturing your brand's essence.
Audited Supplier 
){kind=link}