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 that ensures your machinery operates at peak efficiency.;
HLPSV: Variable Displacement Pump - Embodying adaptability at its pinnacle, this technology shifts with your dynamic needs.;
(2) Connection Block Ports P & R Specifications - The epitome of precision you can trust, crafted for excellence in every application::
2-G3/8; Compact in design, yet highly efficient, offering streamlined performance.
3-G1/2; Renowned for reliability and robustness, a trusted choice for professionals.;
4-G3/4; Advanced connectivity for superior performance, designed to exceed expectations.;
5, 55-G1; Exceptional flow rate ensuring optimal fluid dynamics and seamless operation.;
6-G1 1/4; Unmatched in performance and reliability, this component epitomizes engineering excellence.;
(3) Additional Components and Specifications - Elevating system capabilities to new heights with state-of-the-art technology::
C,Standard Type - A dependable baseline for all applications, ensuring consistency and quality.;
G,Throttle Valve (For HLPSL only) - Offers unparalleled precision control, enhancing your system's versatility.;
H,Fixed Differential Overflow Valve for Enhanced Circulating Pressure (~14 bar, HLPSL) - Masterfully optimized flow management for improved efficiency.;
(4) Pilot Oil Circuit Pressure Options - Customizable pressure control tailored to your specific needs, offering flexibility and control:0 - No pressure reducing valve; 1 - Pressure reducing valve (20 bar); 2 - Pressure reducing valve (40 bar); Tailored for your precise requirements, catering to diverse operational demands.
(5) 2/2-way Magnetic Ball Valve for System Unloading - Ensuring streamlined efficiency and effectiveness with cutting-edge design: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 and performance optimization.
(6) Tool Adjustable, Pressure Limiting Valve in Connection Block: Our system offers precise settings at 63, 120, 210, 280, 315, 350, and 400 bar. Choose /NF if no pressure limiting valve is needed (HLPSV only). This ensures optimal pressure control and enhances safety measures.
(7) Product Series Classification - Identifying Excellence:;-2 2 Series; -3 3 Series; -5 5 Series; Precisely engineered to meet diverse application demands.
(8)Thread Size of Directional Spool Valve Ports A & B:2-G3/8; 3-G1/2; 4-G3/4; 5-G1; Featuring an ancillary block or an intermediate transition block ZPL 5S(V)/H hydraulic control shut-off valve.
(9)Directional Valve Block Inflow Controller Options: Choose 1 for a system without an inflow controller; 2 for a standard inflow controller; 4 for advanced 3-way flow controllers suitable for both inlet and outlet (ideal for N 3/3-way valve); 5 for an enhanced inflow controller; or 8 for pre-selectable features.
(10) Valve Core Function Symbols: A diverse selection including L, M, F, H, J, B, R, O, N; each designed for specific operational needs.
(11) Output Flow Code for Ports A & B: Maximum output flows available are 3, 6, 10, 16, 25, 40, 63, 80, 120, 160, and 210 L/min, ensuring adaptability to various flow demands.
(12) Secondary Pressure Limitation Options: N, for no pressure limiting protection; C, to limit the pressure of actuator ports A & B simultaneously; A---B---, to limit the pressure of actuator ports A & B separately, unit (bar), offering tailored protection.
(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, featuring electrical ON/OFF on side A; B, featuring electrical ON/OFF on side B, to meet various control needs.
(14) Operation Modes: A(1,2), manual operation with long handle; E, electric proportional control; EA(1,2), combining electric proportional control and manual operation; D, electric switching value control; DA(1,2), merging electric switching value control with manual operation; M, manual friction positioning with long handle; H, pure hydraulic control with aligned pilot oil ports; F, pure hydraulic control with perpendicular pilot oil ports.
(15) Ancillary Block Port Sizes: /2 G3/8; /3 G1/2; /4 G3/4; /5 G1, accommodating various connection needs.
(16) End Plate Options: E1, standard end plate with external discharge of pilot oil, externally connecting oil return control port T; E2, similar to E1 with port Y; E3, adds a 2-position 3-way magnetic ball valve for scenarios where system pressure aligns with safety valve pressure;
E4, similar to E1 with internal discharge of pilot oil and sealable port T; E5, similar to E2 with internal discharge and sealable port T; E6, akin to E3 with internal discharge of pilot oil and sealable port T, ensuring robust system integrity.
(17) Control voltage and length options for anti-explosion type cables: G12-12VDC;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.
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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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