Welcome to a new era of hydraulic technology with Jiangsu KM Hydraulic Control System Co., Ltd.'s Innovative Safety Technology for Load Sensitive Valve Applications. Our groundbreaking HLPSL and HLPSV load-sensitive proportional multi-way directional spool valves transcend ordinary components, representing the pinnacle of engineering mastery and state-of-the-art hydraulic advancements. These valves ingeniously integrate pressure, flow, and directional control into a singular, unified entity, ensuring outstanding performance and steadfast reliability across all applications. Designed with meticulous precision, they comprise three fundamental functional modules: connecting blocks, directional valves, and end plates, each crafted for seamless inclusion in world-class hydraulic systems, indispensable for premier engineering machinery. With these valves, experience unmatched precision in regulating the movement direction and speed of hydraulic cylinders, motors, and various actuators. Highlighted features include a sleek, compact design, superior energy efficiency, and the capability for stepless speed modulation. Additionally, they enable multiple actuators to function concurrently under varying loads, offering unmatched performance and adaptability across a wide range of applications.
The HLPSL valves are expertly designed for constant displacement pump systems, ensuring unwavering, reliable performance in any situation. Alternatively, the HLPSV valves are meticulously engineered for variable pump systems. Although they may have a slightly slower response time, HLPSV valves excel in their exceptional energy-saving capabilities, making them the perfect choice when efficiency is critical. These valves, with cutting-edge engineering and an eco-conscious design, stand as the ultimate solution for advanced hydraulic control demands, merging flawless precision, reliability, and energy efficiency into one seamless package.
| 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 - A powerhouse of durable performance, this component offers steadfast and consistent output, ensuring your system runs with seamless efficiency and reliability.;
HLPSV: Variable Displacement Pump - The epitome of adaptability, delivering unmatched flexibility to suit a wide range of operational requirements with exceptional ease.;
(2) Connection Block Ports P & R Specifications - Where meticulous engineering meets robust performance to craft a lasting operational structure::
2-G3/8; Engineered for compact efficiency, ensuring smooth and unobstructed operational flow seamlessly.
3-G1/2; Built for robustness and reliability, forming a strong foundation that supports your system's integrity.;
4-G3/4; With cutting-edge connectivity, this port offers superior control for seamless system integration.;
5, 55-G1; Exceptional flow rates make this port ideal for high-demand uses, providing steady and reliable results.;
6-G1 1/4; Crafted for unparalleled performance, this port excels in challenging environments, overcoming any obstacle with ease.;
(3) Additional Components and Specifications - Raising system capabilities to new pinnacles of excellence::
C,Standard Type - A cornerstone of reliability, expertly engineered to satisfy essential operational needs with precision.;
G,Throttle Valve (For HLPSL only) - Provides precise control, significantly boosting the system's overall efficiency.;
H,Fixed Differential Overflow Valve for Enhanced Circulating Pressure (~14 bar, HLPSL) - Optimizes flow management, ensuring unmatched performance and reliability.;
(4) Pilot Oil Circuit Pressure Options - Delivering customized pressure control solutions that precisely meet varied application needs:0 - No pressure reducing valve; 1 - Pressure reducing valve (20 bar); 2 - Pressure reducing valve (40 bar); Tailored solutions that harmoniously align with your specific operational requirements.
(5) 2/2-way Magnetic Ball Valve for System Unloading - Enhancing system efficiency and precision control:C - No magnetic ball valve; F - The normally open magnetic ball valve is an exceptional innovation, enabling pump pressurization when powered and conveniently unloading when unpowered; D - The normally closed magnetic ball valve is expertly crafted to facilitate pump unloading when powered and pressurization when unpowered;D/F - Elevate your safety standards with our precision-engineered pressure limiting valve, specifically designed for secondary pressure (F50). This state-of-the-art feature guarantees advanced safety protocols, significantly enhancing operational security and reliability, providing you peace of mind in various hydraulic applications.
(6) Tool Adjustable, Pressure Limiting Valve in Connection Block: Experience groundbreaking versatility and precision, offering customizable pressure settings that span from 63 to 400 bar. This component exemplifies adaptability, fully accommodating a diverse range of hydraulic requirements. For seamless configurations, /NF represents no pressure limiting valve, meticulously tailored for HLPSV, ensuring impeccable pressure management across a wide spectrum of applications.
(7) Product Series Classification - The Pinnacle of Engineering Excellence:;-2 2 Series; -3 3 Series; -5 5 Series; Each series is an engineering marvel, expertly crafted to meet diverse applications, providing you with a product that aligns seamlessly with your precise needs, embodying the highest standards of quality and performance.
(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 with precision for seamless integration and operation, offering unmatched performance and reliability.
(9)Directional valve block inflow controller options: Select from a diverse array of options to perfectly match your system's demands: 1, without inflow controller; 2, standard inflow controller; 4, advanced 3-way flow controller for both inlet and outlet, specifically designed for the N 3/3-way valve; 5, enhanced inflow controller; 8, pre-selectable options, each delivering precision and exceptional efficiency, ensuring optimal system performance.
(10) Valve core function symbols: Discover a comprehensive selection of core functions, each precisely engineered to fulfill specific functional requirements: L, M, F, H, J, B, R, O, N, providing unparalleled versatility and adaptability for various applications.
(11) Output flow code for ports A & B: Maximize efficiency with peak output flow capabilities expertly designed to provide superior performance and reliability: 3, 6, 10, 16, 25, 40, 63, 80, 120, 160, 210 L/min, ensuring that your system operates at the pinnacle of efficiency.
(12) Secondary pressure limitation options: Choose from a variety of options to ensure uncompromised system safety: 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, providing robust protection for your hydraulic system.
(13) Function ON/OFF and pressure outlet options: Customize your system with diverse options, each meticulously engineered for precise control and functionality: 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, allowing for tailored system configurations to suit your unique operational requirements.
(14) Operation modes: Immerse yourself in a wide-ranging selection of operation modes, each meticulously designed to cater to diverse needs: A(1,2), offering manual operation with a choice between long and short handles; E, for those seeking the precision of electric proportional control; EA(1,2), an exquisite blend of electric proportional control with manual operation; D, introducing electric switching value control; DA(1,2), a seamless combination of electric switching value control and manual operation; M, where manual friction positioning is enhanced with a long handle; H, utilizing pure hydraulic control with pilot oil ports aligned with ports A and B; and finally, F, bringing pure hydraulic control with perpendicular pilot oil ports, all crafted with the utmost precision for unparalleled and comprehensive control.
(15) Ancillary block port sizes: Empower your systems with our masterfully engineered port size solutions, architected to ensure seamless adaptability and flawless integration. Choose from our sophisticated selection: /2 G3/8, /3 G1/2, /4 G3/4, and /5 G1. Each option is designed with unmatched flexibility and is meticulously tailored to meet your specific requirements with outstanding efficiency and precision.
(16) End plate options: Discover our extraordinary lineup of precisely engineered end plate innovations. E1 sets a new benchmark, featuring external pilot oil discharge coupled with an external oil return control port T. Enhance your system with E2, which adds an extra port Y for elevated functionality. Explore the revolutionary E3 innovation, integrating a 2-position 3-way magnetic ball valve. This advancement elevates your system's pressure to top-tier safety valve levels when energized, guaranteeing superior performance combined with unmatched reliability.
E4, akin to E1, distinguishes itself with an internal pilot oil discharge and a sealed port T. E5 replicates the excellence of E2, now incorporating internal discharge capabilities. Step into advanced technology with assurance via E6, echoing the forward-thinking design of E3. Every variant ensures superior discharge control, optimizing your system's efficiency and performance.
(17) Control voltage and anti-explosion cable options: Enhance your system's safety and dependability with our expansive range of expertly crafted solutions. Select G12-12VDC for specialized applications that demand the utmost in safety and compatibility without compromise.G24: Your ultimate choice for steadfast performance and unwavering reliability in any application.-24VDC; G24Ex-3m-24VDC; G12Ex-3m-12VDC; G24MA-3m-24VDC; G: Elevate your strategic selections with these options, engineered for peak efficiency and adaptability across a variety of challenging environments.12: Exemplifying precision and reliability, crafted for flawless integration into your systems.bb621436: The code of excellence, setting a benchmark in our trailblazing design.
Since our inception in 2009, Jiangsu KM Hydraulic Control System Co., Ltd. has truly 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, the flagship product, embodies 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:Typically, the lead time for production spans approximately one month after payment is received. During this crucial period, we embark on comprehensive preparations and uphold the highest standards of quality control, ensuring each product reaches you in pristine condition. Our unwavering devotion to achieving your complete satisfaction with our impeccable delivery is our foremost commitment.
Question:2. Do you have any MOQ limit for LED light orders?
Answer: We proudly offer an exceptionally low minimum order quantity, providing you with the unique advantage of ordering as little as a single piece for sample verification. This flexibility empowers you to kickstart your projects effortlessly, catering precisely to your exclusive needs with utmost convenience and precision.
Question:3. How to proceed with an order for LED lights?
Answer: Initiate your order by conveying your specific requirements or intended applications to us. We will then meticulously prepare a bespoke quote, tailored exclusively for your needs, either through your detailed inputs or our expert recommendations. Once the drawings are finalized and a deposit is made, we will formalize the order and commence production. We assure you that every specification will be met with precision, providing a seamless, customized solution that perfectly aligns with your vision.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 entirely possible. Please ensure that you formally notify us before production begins and confirm the design according to the sample we provide. This ensures your branding is represented with outstanding precision and excellence, perfectly embodying your identity.
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