Introducing our groundbreaking HLPSL and HLPSV load-sensitive proportional multi-way directional spool valves. These revolutionary engineering creations epitomize the zenith of hydraulic innovation, masterfully combining pressure, flow, and directional control into one cohesive and harmonious masterpiece. This ensures unparalleled performance and reliability in every conceivable application across industries. Typically composed of three essential functional modules-connecting blocks, directional valves, and end plates-these valves are meticulously crafted for seamless integration into high-end hydraulic systems, pivotal for top-tier engineering machinery. They precisely govern the movement direction and speed of hydraulic cylinders, motors, and other actuators, ensuring unmatched precision and control. Key highlights include 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 across a myriad of settings. 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 truly exceptional energy-saving performance, making them the ultimate choice for applications where efficiency reigns supreme. With their cutting-edge engineering and energy-efficient design, HLPSV valves stand out as the premier solution for advanced hydraulic control requirements, offering a seamless 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 foundation of faultless and steadfast performance, ensuring seamless and efficient operations in your setup.;
HLPSV: Variable Displacement Pump - Reflecting adaptability and flexibility, delivering exceptional versatility to satisfy a wide range of operational demands.;
(2) Connection Block Ports P & R Specifications - Precision perfectly combined with reliability for dependable operations::
2-G3/8; Crafted for compact efficiency, enabling streamlined and seamless operational flows with ease.
3-G1/2; Engineered for durability and reliability, forming a steadfast foundation for your system.;
4-G3/4; Delivering advanced connectivity, providing superior control and enhanced system integration.;
5, 55-G1; With an exceptional flow rate, this choice is ideal for high-demand applications, ensuring steady performance.;
6-G1 1/4; Delivering unparalleled performance, designed to excel in field conditions, overcoming challenges effortlessly.;
(3) Additional Components and Specifications - Elevating system capabilities to unprecedented heights::
C,Standard Type - A reliable and dependable baseline, customized to meet your core operational needs.;
G,Throttle Valve (For HLPSL only) - Guarantees precise control, boosting overall system efficiency.;
H,Fixed Differential Overflow Valve for Enhanced Circulating Pressure (~14 bar, HLPSL) - Optimizes flow management, enhancing superior performance and reliability.;
(4) Pilot Oil Circuit Pressure Options - Providing bespoke pressure control solutions for various applications:0 - No pressure reducing valve; 1 - Pressure reducing valve (20 bar); 2 - Pressure reducing valve (40 bar); Offering tailored solutions to seamlessly satisfy 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 the pump when powered, deactivating it when unpowered; D - Normally closed magnetic ball valve, deactivating the pump when powered, activating it when unpowered;D/F - Equipped with an innovative pressure limiting valve for secondary pressure (F50) at a designated pressure level, this feature offers unmatched safety protocols to ensure secure and reliable operations, elevating your system's protection standards.
(6) Tool Adjustable, Pressure Limiting Valve in Connection Block: This component embodies versatility and precision with its adjustable settings at bar levels of 63, 120, 210, 280, 315, 350, and 400. For those who value simplicity, the /NF option provides a no pressure limiting valve, purpose-built for HLPSV. This feature ensures optimal pressure control across diverse applications, making it an essential component for all your hydraulic requirements.
(7) Product Series Classification - Embodying the Pinnacle of Excellence:;-2 2 Series; -3 3 Series; -5 5 Series; Each series is meticulously crafted to cater to every application, ensuring that you receive a product that perfectly aligns with your precise needs and expectations.
(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 sophisticated intermediate transition block ZPL 5S(V)/H hydraulic control shut-off valve, designed for seamless and efficient integration.
(9)Directional valve block inflow controller options: Choose from a selection of precision-enhancing features: 1, without inflow controller; 2, standard inflow controller; 4, an advanced 3-way flow controller for both inlet and outlet, ideal for the N 3/3-way valve; 5, reinforced inflow controller; 8, pre-selectable options, each designed to ensure unparalleled precision and operational efficiency.
(10) Valve core function symbols: Discover a comprehensive spectrum of core functions: L, M, F, H, J, B, R, O, N, each designed with meticulous attention to fulfill distinct and unique functional requirements, enhancing versatility and utility.
(11) Output flow code for ports A & B: Optimize efficiency with available maximum output flows: 3, 6, 10, 16, 25, 40, 63, 80, 120, 160, 210 L/min, specifically tailored to ensure peak performance and operational excellence.
(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, all measured in bar, ensuring robust and comprehensive system safety.
(13) Function ON/OFF and pressure outlet options: Explore customizable options including: 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 engineered for precision control and adaptive functionality.
(14) Operation modes: Experience diverse operation modes: A(1,2), manual operation with a choice of long or short handle; E, electric proportional control; EA(1,2), a sophisticated blend of electric proportional control and manual operation; D, electric switching value control; DA(1,2), a harmonious combination of electric switching value control and manual operation; M, manual friction positioning with long handle; H, pure hydraulic control aligning pilot oil ports with oil ports A and B; F, pure hydraulic control with perpendicular pilot oil ports, crafted for comprehensive and adaptable control.
(15) Ancillary block port sizes: Choose from a range of versatile options: /2 G3/8; /3 G1/2; /4 G3/4; /5 G1, engineered for seamless adaptability and effortless integration into diverse systems.
(16) End Plate Options: Discover our tailored end plate choices crafted for enhanced functionality and versatility. Options include: E1, the standard choice, featuring external discharge of pilot oil and an external oil return control port T for optimal performance; E2, which mirrors E1, but boasts an additional port Y for expanded utility; E3, equipped with a 2-position 3-way magnetic ball valve, adept at elevating system pressure to safety valve levels during power supply, ensuring robust and reliable operation.
E4, a variant akin to E1, includes an internal discharge of pilot oil with a sealing port T for seamless integration; E5, reflecting the features of E2, also offers internal discharge for streamlined operation; E6, paralleling E3, each option delivering advanced discharge control for precision management.
(17) Control Voltage and Anti-Explosion Cable Length Options: Select from a variety of configurations including G12-12VDC, designed to guarantee safety and compatibility with specialized applications, ensuring your system operates flawlessly under demanding conditions.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 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.
Question:1. What about the lead time?
Answer:The lead time for production is typically around one month following receipt of payment. During this period, we engage in detailed preparation and implement stringent quality control measures to ensure that every product reaches you in perfect condition. Your satisfaction with our impeccable delivery is our top priority.
Question:2. Do you have any MOQ limit for LED light orders?
Answer: We offer an impressively low minimum order quantity, allowing you the flexibility to order even a single piece for sample verification. This adaptability means you can start your projects with ease and precision, meeting your unique requirements without hassle.
Question:3. How to proceed with an order for LED lights?
Answer: Initiate the process by sharing your detailed requirements or intended applications with us. We will then tailor a quote specifically for you, based on your needs or through our expert advice. Upon confirming the drawings and placing a deposit, we will finalize the order and commence production. We ensure every specification is adhered to with precision, offering you a seamless and customized solution.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: Absolutely, this is certainly possible. Please make sure to inform us formally before the production begins and confirm the design based on the sample we provide. This ensures that your branding is showcased with utmost precision and superior quality, reflecting your identity perfectly.
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