Introducing our groundbreaking HLPSL and HLPSV load-sensitive proportional multi-way directional spool valves, a true testament to innovative engineering. These remarkable devices seamlessly unify pressure, flow, and directional control into one cohesive unit, ensuring unparalleled performance and reliability. Comprising three fundamental modules - connecting blocks, directional valves, and end plates - they are precisely crafted for integration into elite hydraulic systems, crucial in high-end engineering machinery. These valves expertly manage the movement direction and speed of hydraulic cylinders, motors, and other actuators, providing unmatched precision and control. Key features include a compact design, exceptional energy efficiency, and the ability for stepless speed control. Additionally, they empower multiple actuators to function concurrently under diverse loads, offering unrivaled performance and adaptability for any application.
The HLPSL valves are expertly designed for constant displacement pump systems, guaranteeing steady and dependable operation. On the other hand, the HLPSV valves are meticulously engineered for variable pump systems. Although HLPSV valves may have a slightly slower response time, they shine in offering remarkable energy-saving performance, making them the ideal choice for applications where efficiency is of utmost importance. With their advanced engineering and energy-efficient design, HLPSV valves stand out as the premier solution for sophisticated hydraulic control needs.
| 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, ensuring every operation runs smoothly and efficiently.;
HLPSV: Variable Displacement Pump - Embodying adaptability at its pinnacle, this pump is designed to meet diverse requirements with unparalleled efficiency.;
(2) Connection Block Ports P & R Specifications - The epitome of precision you can trust, crafted to perfection for your hydraulic needs::
2-G3/8; Compact in design, yet highly efficient, offering superior flow control in a small package.
3-G1/2; Renowned for its reliability and robustness, providing steadfast performance under demanding conditions.;
4-G3/4; Advanced connectivity for superior performance, enhancing your system's overall capabilities.;
5, 55-G1; Exceptional flow rate ensuring optimal fluid dynamics, facilitating smooth and uninterrupted operations.;
6-G1 1/4; Unmatched in performance and reliability, this port promises exceptional service longevity and minimal maintenance.;
(3) Additional Components and Specifications - Elevating system capabilities to new heights with advanced features::
C,Standard Type - A dependable baseline for all applications, offering a robust foundation for system configurations.;
G,Throttle Valve (For HLPSL only) - Offers unparalleled precision control, ensuring smooth operation and precise adjustments.;
H,Fixed Differential Overflow Valve for Enhanced Circulating Pressure (~14 bar, HLPSL) - Masterfully optimized flow management for efficient system performance.;
(4) Pilot Oil Circuit Pressure Options - Customizable pressure control tailored to your specific needs, offering flexibility and precision:0 - No pressure reducing valve; 1 - Pressure reducing valve (20 bar); 2 - Pressure reducing valve (40 bar); Tailored for your precise requirements, ensuring optimal system efficiency.
(5) 2/2-way Magnetic Ball Valve for System Unloading - Ensuring streamlined efficiency and effectiveness, optimizing 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 that redefine reliability.
(6) Introducing our versatile Tool Adjustable, Pressure Limiting Valve embedded within our Connection Block. Enjoy the flexibility of settings at 63, 120, 210, 280, 315, 350, and 400 bar, ensuring you have the right fit for every situation. The option /NF indicates models without a pressure limiting valve (exclusive for HLPSV), effortlessly guaranteeing optimal pressure control and unwavering safety.
(7) Product Series Classification - Unveiling Excellence in Every Model:;-2 2 Series; -3 3 Series; -5 5 Series; Meticulously engineered to cater to diverse applications with precision.
(8)Thread size options available for directional spool valve ports A & B include:2-G3/8; 3-G1/2; 4-G3/4; 5-G1, catering to different hydraulic needs whether an ancillary block or an intermediate transition block. ZPL 5S(V)/H hydraulic control shut-off valve, designed for precision and reliability.
(9)Directional valve block inflow controller options are as follows: 1, without inflow controller; 2, standard inflow controller; 4, state-of-the-art 3-way flow controllers for both inlet and outlet, perfect for N 3/3-way valves; 5, reinforced inflow controller for high-demand usage; 8, pre-selectable to meet customized requirements.
(10) Valve core function symbols: L, M, F, H, J, B, R, O, N, each symbolizing distinct function characteristics tailored to your needs.
(11) Output flow code options for ports A & B with maximum flows available: 3, 6, 10, 16, 25, 40, 63, 80, 120, 160, 210 (L/min), engineered to deliver precise fluid control.
(12) Secondary pressure limitation options include: N, without pressure limiting protection; C, simultaneous limitation on actuator ports A & B; A---B---, separate pressure limitation on actuator ports A & B, measured in bar, ensuring safety and control.
(13) Advanced Function ON/OFF and pressure outlet options: N, devoid of 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, expertly designed for precision.
(14) Diverse Operation Modes: A(1,2), manual operation with long handle; E, electric proportional control; EA(1,2), combined electric proportional control and manual operation; D, electric switching value control; DA(1,2), integrated electric switching value control and manual operation; M, manual friction positioning with long handle; H, pure hydraulic control with alignment of two pilot oil ports to oil ports A and B; F, pure hydraulic control with perpendicular orientation of pilot oil ports to oil ports A and B.
(15) Options for Ancillary Block Port Sizes: /2 G3/8; /3 G1/2; /4 G3/4; /5 G1, ensuring compatibility with various setups.
(16) End Plate Options for optimal efficiency: E1, standard end plate with external pilot oil discharge; E2, similar to E1 with additional port Y; E3, with 2-position 3-way magnetic ball valve for scenarios requiring system pressure escalation to safety valve levels;
E4, similar to E1 with internal pilot oil discharge; E5, similar to E2 with internal discharge; E6, similar to E3, featuring internal discharge with the option to seal port T, delivering versatile and reliable performance.
(17) Dive into the versatility of control voltage options and the robust length of anti-explosion type cables designed to suit your needs: G12-12VDC;G24-24VDC; G24Ex with a 3-meter cable - 24VDC; G12Ex with a 3-meter cable - 12VDC; G24MA with a 3-meter cable - 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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