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 fundamental pillar of steadfast and reliable performance, ensuring seamless, smooth, and efficient operation to keep your systems running without a hitch.;
HLPSV: Variable Displacement Pump - A paragon of adaptability and versatility, offering an unmatched spectrum of flexibility to meet a broad array of operational requirements and environments.;
(2) Connection Block Ports P & R Specifications - Where exactness meets steadfast reliability, delivering trustworthy and consistent operations::
2-G3/8; Crafted for compact efficiency, designed to cater to streamlined, seamless operational flows with ease.
3-G1/2; Engineered for robustness and dependability, providing an unwavering and solid foundation for your system.;
4-G3/4; Featuring advanced connectivity, delivering superior control and enhanced integration for your system.;
5, 55-G1; With an exceptional flow rate, this choice is ideal for high-demand applications, ensuring consistent and reliable performance.;
6-G1 1/4; Offering unparalleled performance, designed to excel in the field and surmount challenges with ease.;
(3) Additional Components and Specifications - Elevating system capabilities to unprecedented heights::
C,Standard Type - A steadfast and reliable baseline, meticulously tailored to fulfill your essential operational needs.;
G,Throttle Valve (For HLPSL only) - Guarantees precision in control, elevating overall system efficiency to new levels.;
H,Fixed Differential Overflow Valve for Enhanced Circulating Pressure (~14 bar, HLPSL) - Optimizes flow management, driving superior performance and unwavering dependability.;
(4) Pilot Oil Circuit Pressure Options - Delivering tailored pressure control solutions for varied applications:0 - No pressure reducing valve; 1 - Pressure reducing valve (20 bar); 2 - Pressure reducing valve (40 bar); Offering customized solutions to seamlessly meet your specific operational demands.
(5) 2/2-way Magnetic Ball Valve for System Unloading - Enhancing efficiency and amplifying control: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;D/F - Equipped with a pressure limiting valve for secondary pressure (F50), featuring a specified pressure value; Providing advanced safety measures to secure and safeguard operations.
(6) Tool Adjustable, Pressure Limiting Valve in Connection Block: Discover the epitome of versatility and precision with adjustable settings available at 63, 120, 210, 280, 315, 350, and 400 bar levels. For those who value simplicity, the /NF option represents no pressure limiting valve, specifically crafted for HLPSV. This feature guarantees optimal pressure control across diverse scenarios, establishing its indispensability for 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 need, ensuring you receive a product that aligns perfectly with your exacting demands.
(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.
(9)Directional valve block inflow controller options: Choose from a selection of: 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, fortified inflow controller; 8, pre-selectable options, each ensuring precision and unparalleled efficiency.
(10) Valve core function symbols: Discover a broad spectrum of core functions: L, M, F, H, J, B, R, O, N, each ingeniously designed to meet distinctive functional criteria.
(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, meticulously tailored for peak performance.
(12) Secondary pressure limitation options: Select between: 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 durable system safety.
(13) Function ON/OFF and pressure outlet options: Tailor your selection with: 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 precise control.
(14) Operation modes: Explore an array of diverse operation modes: A(1,2), manual operation with either a long or short handle; E, electric proportional control; EA(1,2), a combined approach of electric proportional control and manual operation; D, electric switching value control; DA(1,2), a synthesis of electric switching value control and manual operation; M, manual friction positioning with an extended handle; H, pure hydraulic control (aligning pilot oil ports with oil ports A and B); F, pure hydraulic control with vertical pilot oil ports, crafted for comprehensive and commanding control.
(15) Ancillary block port sizes: Choose from an array of versatile options: /2 G3/8; /3 G1/2; /4 G3/4; /5 G1, meticulously engineered for seamless adaptability.
(16) End plate options: Our meticulously crafted end plate options include: E1, the standard choice, featuring external discharge of pilot oil and external oil return control port T. E2, similar to E1, offers an added port Y for enhanced versatility. E3, equipped with a 2-position 3-way magnetic ball valve, elevates the system pressure to safety valve levels during power supply, providing an extra layer of security.
E4, designed akin to E1 but with the innovation of internal discharge of pilot oil, perfectly sealing port T. E5 mirrors E2 but integrates internal discharge, adding a refined touch. E6 parallels E3, each option guaranteeing advanced discharge control with precision.
(17) Control voltage and anti-explosion type cable length options: Choose from a range of robust options like G12-12VDC, ensuring maximum safety and seamless compatibility with specialized applications, setting standards for reliability.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.
Inquiry:1. What about the lead time?
Response:Our standard lead time for production is approximately one month from the receipt of your payment. During this timeframe, we meticulously prepare and enforce rigorous quality control protocols to ensure that each product delivered to you is flawless. Ensuring your satisfaction through our exemplary delivery service is our highest priority.
Inquiry:2. Do you have any MOQ limit for LED light orders?
Response: We pride ourselves on offering a remarkably low minimum order quantity, granting you the liberty to order even a single piece for sample validation. This flexibility empowers you to initiate your projects effortlessly and accurately, without any constraints, perfectly aligning with your specific needs.
Inquiry:3. How to proceed with an order for LED lights?
Response: Begin the order process by providing us with your comprehensive requirements or the specific applications you have in mind. We will then curate a bespoke quote tailored to your distinct needs or guided by our expert suggestions. Upon confirmation of the drawings and receipt of your deposit, we finalize the order and begin production. We diligently adhere to every specification, offering you a flawless and bespoke solution.drawings,and place a deposit to formalize the order. We will oversee the production, ensuring every detail is executed flawlessly for a seamless and custom solution.
Inquiry:4. Is it OK to print my logo on the product?
Response: Certainly, this is entirely possible. Kindly inform us formally before the commencement of production and confirm the design based on the sample provided, which ensures that your branding is represented with the highest precision and exceptional quality, perfectly reflecting your brand identity.
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