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.
Our HLPSL valves are expertly tailored for constant displacement pump systems, ensuring steadfast, reliable, and consistent 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, providing remarkable stability.;
HLPSV: Variable Displacement Pump - Embodying adaptability at its pinnacle, offering superior flexibility.;
(2) Connection Block Ports P & R Specifications - The epitome of precision you can trust, engineered for excellence::
2-G3/8; Compact in design, yet highly efficient, ensuring seamless performance.
3-G1/2; Renowned for reliability and robustness, excelling in demanding environments.;
4-G3/4; Advanced connectivity for superior performance, pushing the boundaries of functionality.;
5, 55-G1; Exceptional flow rate ensuring optimal fluid dynamics, designed for maximum efficiency.;
6-G1 1/4; Unmatched in performance and reliability, delivering outstanding results.;
(3) Additional Components and Specifications - Elevating system capabilities to new heights, transforming operational standards::
C,Standard Type - A dependable baseline for all applications, ensuring consistent reliability.;
G,Throttle Valve (For HLPSL only) - Offers unparalleled precision control, enhancing system responsiveness.;
H,Fixed Differential Overflow Valve for Enhanced Circulating Pressure (~14 bar, HLPSL) - Masterfully optimized flow management, ensuring peak performance.;
(4) Pilot Oil Circuit Pressure Options - Customizable pressure control tailored to your specific needs, offering personalized solutions:0 - No pressure reducing valve; 1 - Pressure reducing valve (20 bar); 2 - Pressure reducing valve (40 bar); Tailored for your precise requirements, ensuring meticulous control.
(5) 2/2-way Magnetic Ball Valve for System Unloading - Ensuring streamlined efficiency and effectiveness, redefining operational precision: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 operational integrity.
(6) Tool Adjustable, Pressure Limiting Valve in Connection Block: Fine-tune your settings with available options at 63, 120, 210, 280, 315, 350, and 400 bar. /NF: Opt for no pressure limiting valve (HLPSV only) ensuring unmatched pressure control and safety, tailored to your hydraulic needs.
(7) Product Series Classification - Identifying excellence in every model:;-2 2 Series; -3 3 Series; -5 5 Series; Each series meticulously tailored for diverse applications, ensuring perfect fit for varied demands.
(8)Thread size of directional spool valve ports A & B:2-G3/8; 3-G1/2; 4-G3/4; 5-G1; With options like A, ancillary block or intermediate transition block ZPL 5S(V)/H for seamless hydraulic control shut-off valve transitions;
(9)Directional valve block inflow controller options: 1, without inflow controller; 2, standard inflow controller; Versatile 4, 3-way flow controllers for both inlet and outlet (perfect match for N 3/3-way valve); 5, reinforced inflow controller; 8, pre-selectable;
(10) Valve core function symbols: L, M, F, H, J, B, R, O, N; Tailor your system with these diverse symbols ensuring customized functionality.
(11) Output flow code for ports A & B: Choose from available maximum output flows: 3, 6, 10, 16, 25, 40, 63, 80, 120, 160, 210 (L/min); for optimized system performance.
(12) Secondary pressure limitation options: N, no pressure limiting protection; C, simultaneous pressure limitation of actuator ports A & B; A---B---, distinct pressure limitation of actuator ports A & B, unit (bar); to ensure safety and performance.
(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 for precision; B, electrical ON/OFF on side B; Customize your functionality to suit application needs.
(14) Operation modes: A(1,2), manual operation with long handle (1=without handle, 2=with short handle); E, electric proportional control; EA(1,2), electric proportional control paired with manual operation (1=without handle, 2=with short handle); D, electric switching value control; DA(1,2), electric switching value control combined with manual operation (1=without handle, 2=with short handle); M, manual friction positioning with long handle; H, pure hydraulic control (two pilot oil ports parallel with oil ports A and B); F, pure hydraulic control (two pilot oil ports perpendicular and outward from oil ports A and B respectively); Choose the operational style that best complements your system.
(15) Ancillary block port sizes: /2 G3/8; /3 G1/2; /4 G3/4; /5 G1; Offering seamless adaptability for varied connection requirements.
(16) End plate options: E1, standard end plate with external pilot oil discharge, enabling control port T to connect externally for efficient oil return; E2, akin to E1, but with additional attachment of port Y for enhanced operations; E3, featuring a 2-position 3-way magnetic ball valve for heightened control in power scenarios, elevating system pressure to the safety valve level;
E4, mirroring E1 with internal pilot oil discharge, allowing port T to be sealed; E5, echoing E2's design with internal discharge and sealable port T; E6, paralleling E3 with internal discharge and sealable port T; for comprehensive system integrity.
(17) Control voltage and the length of anti-explosion type cable options: Providing versatile voltage choices, we offer the G12 at 12VDC for your specific needs;G24-24VDC; For enhanced safety and reliability, our options include G24Ex with 3m cable at 24VDC and G12Ex with 3m cable at 12VDC; Plus, we have the G24MA option with a 3m cable at 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. 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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