Introducing our groundbreaking HLPSL and HLPSV load-sensitive proportional multi-way directional spool valves. These revolutionary engineering marvels seamlessly integrate pressure, flow, and directional control into a single, harmonious unit, guaranteeing unmatched performance and reliability. Typically composed of three essential functional modules - connecting blocks, directional valves, and end plates - these valves are meticulously crafted for incorporation into high-end hydraulic systems, pivotal in top-tier engineering machinery. They precisely govern the movement direction and speed of hydraulic cylinders, motors, and other actuators, delivering unparalleled precision and control. Key highlights include a compact structure, superior energy efficiency, and the capability for stepless speed control. Furthermore, they enable multiple actuators to operate simultaneously under varying loads, providing unrivaled performance and versatility for any application.
The HLPSL valves are expertly tailored for constant displacement pump systems, ensuring steadfast and reliable operation. 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 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 emerge as the premier solution for advanced hydraulic control requirements.
| 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 cornerstone for consistent and unwavering performance, designed to maintain reliability under all conditions.;
HLPSV: Variable Displacement Pump - Embodying adaptability at its pinnacle, offering peak efficiency tailored to dynamic requirements.;
(2) Connection Block Ports P & R Specifications - The epitome of precision you can trust, ensuring seamless operation and stability in every application::
2-G3/8; Compact in design, yet highly efficient, this port exemplifies smart engineering.
3-G1/2; Renowned for reliability and robustness, built to withstand demanding environments.;
4-G3/4; Advanced connectivity for superior performance, enabling enhanced fluid transfer.;
5, 55-G1; Exceptional flow rate ensuring optimal fluid dynamics, driving peak performance.;
6-G1 1/4; Unmatched in performance and reliability, designed for ultimate operational excellence.;
(3) Additional Components and Specifications - Elevating system capabilities to new heights, offering a suite of superior enhancements::
C,Standard Type - A dependable baseline for all applications, ensuring consistent performance.;
G,Throttle Valve (For HLPSL only) - Offers unparalleled precision control, for meticulously fine-tuned operations.;
H,Fixed Differential Overflow Valve for Enhanced Circulating Pressure (~14 bar, HLPSL) - Masterfully optimized flow management, ensuring superior pressure regulation.;
(4) Pilot Oil Circuit Pressure Options - Customizable pressure control tailored to your specific needs, enabling precise adjustments for optimal efficiency:0 - No pressure reducing valve; 1 - Pressure reducing valve (20 bar); 2 - Pressure reducing valve (40 bar); Tailored for your precise requirements, delivering adaptability with precision.
(5) 2/2-way Magnetic Ball Valve for System Unloading - Ensuring streamlined efficiency and effectiveness, designed to optimize system performance:C - No magnetic ball valve; F - Normally open magnetic ball valve, pressurizes pump when powered, unloads pump when unpowered; D - Normally closed magnetic ball valve, unloads pump when powered, pressurizes when unpowered; D./F. . , With pressure limiting valve for secondary pressure (F50) with specified pressure value; Pioneering advanced safety measures, safeguarding reliability in every operation.
(6) Unlock unparalleled safety and precision with our Tool Adjustable Pressure Limiting Valve, seamlessly integrated within the Connection Block. Offering bespoke settings at 63, 120, 210, 280, 315, 350, and 400 bar, our valve ensures exceptional pressure control and safety. Choose /NF for models without a pressure limiting valve (exclusive to HLPSV). Elevate your operational standards with cutting-edge performance.
(7) Product Series Classification - Identifying Excellence: A commitment to tailor-made solutions and engineering superiority.;-2 2 Series; -3 3 Series; -5 5 Series; Meticulously crafted to meet the demands of diverse applications with precision.
(8)Thread Size of Directional Spool Valve Ports A & B: Ensuring perfect compatibility and seamless integration.2-G3/8; 3-G1/2; 4-G3/4; 5-G1; Meet the needs of various systems with our ancillary block or intermediate transition block ZPL 5S(V)/H hydraulic control shut-off valve.
(9)Directional Valve Block Inflow Controller Options: 1, without inflow controller for simplicity; 2, standard inflow controller for balanced control; 4, 3-way flow controllers for adaptable inlet and outlet, perfect for N 3/3-way valve applications; 5, strengthened inflow controller for enhanced performance; 8, pre-selectable for customized configurations.
(10) Valve Core Function Symbols: L, M, F, H, J, B, R, O, N; A comprehensive range to suit every functional need with precision.
(11) Output Flow Code for Ports A & B: Available Maximum Output Flows: 3, 6, 10, 16, 25, 40, 63, 80, 120, 160, 210 (L/min); Tailor your system for optimal performance.
(12) Secondary Pressure Limitation Options: N, no pressure limiting protection; C, simultaneous limitation for actuator ports A & B; A---B---, separate limitation for actuator ports A & B, unit (bar); Safeguard your system with precision limitations.
(13) Function ON/OFF and Pressure Outlet Options: N, without function ON/OFF and 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; Enhance operational control with tailored options.
(14) Operation Modes: A(1,2), manual operation with options for long and short handles; E, electric proportional control for precision; EA(1,2), combined control for versatility; D, electric switching value control; DA(1,2), dual-mode control for adaptability; M, manual friction positioning; H, pure hydraulic control with aligned pilot oil ports; F, pure hydraulic control with perpendicular pilot oil ports; Choose the mode that best fits your operational strategy.
(15) Ancillary Block Port Sizes: /2 G3/8; /3 G1/2; /4 G3/4; /5 G1; Perfectly adaptable for a wide range of configurations.
(16) End Plate Options: E1, standard end plate with external discharge of pilot oil; E2, similar with additional port Y; E3, includes a magnetic ball valve for safety in power supply scenarios; E4, E5, E6, variations with internal discharge and sealable port T; Customize end plate options for enhanced safety and system efficiency.
E4, similar to E1, with internal discharge of pilot oil and option to seal port T; E5, akin to E2, with the same internal discharge options; E6, aligned with E3, offering a contained discharge mechanism with sealable port T; Maximize your system's integrity with optimal end plate configurations.
(17) Explore the diverse control voltage options and the array of anti-explosion type cable lengths available. Choose from G12-12VDC for powerful and secure applications;G24-24VDC for ultimate reliability; G24Ex-3m-24VDC for enhanced safety in hazardous environments; G12Ex-3m-12VDC for compact configurations; G24MA-3m-24VDC for versatile solutions; 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.
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Answer:The lead time for production is typically around one month following receipt of payment. This period allows us to undertake meticulous preparation and enforce stringent quality control measures. Every detail is taken care of to ensure your products are delivered flawlessly.
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Answer: We offer an exceptionally low minimum order quantity, allowing you the freedom to order even a single piece for sample checking. This flexibility ensures that your specific needs are met perfectly, making it easier to start your projects seamlessly.
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Answer: Absolutely, it is possible. Simply inform us formally before production begins and confirm the design based on the sample we provide. This ensures that your branding is represented with utmost precision and quality.
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