Introducing our groundbreaking HLPSL and HLPSV load-sensitive proportional multi-way directional spool valves. These revolutionary engineering creations are the pinnacle of hydraulic innovation, seamlessly uniting pressure, flow, and directional control into a singular, harmonious masterpiece. This integration guarantees unparalleled performance and reliability in every application. Crafted with precision, these valves typically comprise three essential functional modules: connecting blocks, directional valves, and end plates. Designed for integration into high-end hydraulic systems, they are crucial for top-tier engineering machinery. These valves precisely govern the movement direction and speed of hydraulic cylinders, motors, and other actuators, delivering unmatched precision and control. Key highlights include a compact structure, superior energy efficiency, and stepless speed control capability. 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. Conversely, the HLPSV valves are masterfully engineered for variable pump systems. While the 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 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 - Experience unparalleled reliability and steadfast performance with our cornerstone component, crafted to maintain fluidity and drive efficiency in your operations.;
HLPSV: Variable Displacement Pump - A beacon of versatility and adaptability, this pump is designed to offer dynamic solutions, meeting a wide range of operational demands with finesse.;
(2) Connection Block Ports P & R Specifications - The epitome of reliability and precision, acting as a bedrock for dependable operations::
2-G3/8; Embrace compact efficiency tailored for streamlined operations, facilitating smooth and seamless workflows.
3-G1/2; A robust choice ensuring dependability, establishing a solid operational foundation.;
4-G3/4; Elevate connectivity with advanced features, delivering superior control and integration.;
5, 55-G1; Ideal for high-demand applications with an impressive flow rate, maintaining consistent, high-level performance.;
6-G1 1/4; Engineered for extraordinary performance, this option excels in challenging environments.;
(3) Additional Components and Specifications - Enhancing system capabilities and elevating operational excellence::
C,Standard Type - A foundation of trust and reliability, perfectly suited to your fundamental operational requirements.;
G,Throttle Valve (For HLPSL only) - Designed to impart precision, maximizing control and efficiency within your system.;
H,Fixed Differential Overflow Valve for Enhanced Circulating Pressure (~14 bar, HLPSL) - Masterfully optimizes flow management, driving exceptional performance and reliability.;
(4) Pilot Oil Circuit Pressure Options - Tailored pressure control solutions for a spectrum of applications:0 - No pressure reducing valve; 1 - Pressure reducing valve (20 bar); 2 - Pressure reducing valve (40 bar); Thoughtfully crafted to meet your precise operational requirements effortlessly.
(5) 2/2-way Magnetic Ball Valve for System Unloading - Streamlined efficiency and enhanced control:C - No magnetic ball valve; F - Normally open magnetic ball valve, energizing the pump when powered, unloading when unpowered; D - Normally closed magnetic ball valve, unloading the pump when powered, energizing it when unpowered;D/F - Equipped with a precision-engineered pressure limiting valve for secondary pressure (F50) with a designated pressure specification, this feature introduces cutting-edge safety protocols, ensuring secured and efficient operations.
(6) Tool Adjustable, Pressure Limiting Valve in Connection Block: Experience the epitome of adaptability and accuracy with adjustable settings at 63, 120, 210, 280, 315, 350, and 400 bar levels. For those opting for straightforward solutions, /NF denotes no pressure limiting valve, ideal for HLPSV. This feature guarantees unparalleled pressure regulation across diverse scenarios, solidifying its essential role in your hydraulic applications.
(7) Product Series Classification - Defining the Pinnacle of Excellence:;-2 2 Series; -3 3 Series; -5 5 Series; Impeccably customized for every application, each series is engineered to meet your specific demands, ensuring a perfect match for your precise needs.
(8)Thread size of directional spool valve ports A & B:2-G3/8; 3-G1/2; 4-G3/4; 5-G1; including additional blocks or the intermediate transition block ZPL 5S(V)/H hydraulic control shut-off valve, meticulously crafted for flawless integration.
(9)Directional valve block inflow controller options: Choose from: 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 deliver precision and enhance efficiency.
(10) Valve core function symbols: Discover an expansive selection of core functions: L, M, F, H, J, B, R, O, N, each expertly crafted to address distinct functional requirements.
(11) Output flow code for ports A & B: Elevate efficiency with a spectrum of maximum output flows: 3, 6, 10, 16, 25, 40, 63, 80, 120, 160, 210 L/min, meticulously tailored for peak performance.
(12) Secondary pressure limitation options: Select from: N, no pressure limiting protection; C, concurrent pressure limitation of actuator ports A & B; A---B---, independent pressure limitation for ports A & B, all calibrated in bar, ensuring comprehensive system safety.
(13) Function ON/OFF and pressure outlet options: Tailor your options: N, without function ON/OFF or pressure outlet; X, C type pressure limitation; S/S1, AB type pressure limitation; A, electrical ON/OFF for side A; B, electrical ON/OFF for side B, each crafted for refined control.
(14) Operation modes: Explore diverse modes: A(1,2), manual with optional long or short handle; E, electric proportional control; EA(1,2), a fusion of electric proportional 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, pure hydraulic control (alignment of pilot oil ports with oil ports A and B); F, pure hydraulic control with perpendicular pilot oil ports, engineered for comprehensive management.
(15) Ancillary block port sizes: Choose from versatile configurations: /2 G3/8; /3 G1/2; /4 G3/4; /5 G1, skillfully engineered for seamless adaptability.
(16) End plate options: Customize your system with our array of end plate options tailored for optimal performance and safety. Choices include: E1, our standard configuration, featuring an external discharge of pilot oil and external oil return control port T; E2, much like E1, but enhanced with an additional port Y for increased functionality; E3, equipped with a 2-position 3-way magnetic ball valve, designed to elevate system pressure to safety valve levels when power is supplied, ensuring your operations run seamlessly and safely.
E4, offering the reliability of E1, but with the innovation of an internal discharge of pilot oil, sealing port T for enhanced containment; E5, mirrors the capabilities of E2 while incorporating an internal discharge for a more compact design; E6, similar to E3, each option ensures a refined approach to sophisticated discharge control, elevating your system's operational excellence.
(17) Control voltage and anti-explosion type cable options: Choose from our meticulously designed selection for superior safety and application compatibility: G12-12VDC, providing dependable performance tailored for specialized and hazardous environments.G24 - Designed for reliability and versatility, ensuring seamless integration with your system.- An essential component for ensuring your system's safe and efficient operation.24VDC; G24Ex-3m-24VDC; G12Ex-3m-12VDC; G24MA-3m-24VDC; G - These robust configurations are engineered to meet high standards of safety and compatibility, perfect for demanding applications.12 - Engineered for compatibility and seamless integration into your system, ensuring efficient performance.bb621436 - A unique identifier ensuring precise configuration and optimal operation for your system.
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.
){kind=link}