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 - The cornerstone of consistent and reliable performance.;
HLPSV: Variable Displacement Pump - The epitome of adaptability and flexibility.;
(2) Connection Block Ports P & R Specifications - Precision that inspires confidence::
2-G3/8; Engineered for compact efficiency and seamless operation.
3-G1/2; Crafted for reliability and robustness in every application.;
4-G3/4; Delivering advanced connectivity solutions.;
5, 55-G1; Ensuring a superior flow rate for optimal performance.;
6-G1 1/4; Designed for unmatched performance and reliability.;
(3) Additional Components and Specifications - Unleashing enhanced system capabilities::
C,Standard Type - The dependable baseline you can count on.;
G,Throttle Valve (For HLPSL only) - Delivering precision control for sophisticated operations.;
H,Fixed Differential Overflow Valve for Enhanced Circulating Pressure (~14 bar, HLPSL) - Optimizing flow management for peak efficiency.;
(4) Pilot Oil Circuit Pressure Options - Tailoring customizable pressure control:0 - No pressure reducing valve; 1 - Pressure reducing valve (20 bar); 2 - Pressure reducing valve (40 bar); Precisely tailored to meet your specific needs.
(5) 2/2-way Magnetic Ball Valve for System Unloading - Ensuring streamlined efficiency: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; Implementing advanced safety measures.
(6) Tool Adjustable, Pressure Limiting Valve in Connection Block: Available settings at 63, 120, 210, 280, 315, 350, 400 bar; /NF: No pressure limiting valve (HLPSV only); Delivering optimal pressure control.
(7) Product Series Classification - Defining the pinnacle of excellence:;-2 2 Series; -3 3 Series; -5 5 Series; Meticulously designed to suit every specific application, offering unparalleled versatility.
(8)Thread size of directional spool valve ports A & B:2-G3/8; 3-G1/2; 4-G3/4; 5-G1; Experience seamless integration with the A ancillary block or the intermediate transition block ZPL 5S(V)/H hydraulic control shut-off valve, assuring precise control and reliability;
(9)Directional valve block inflow controller options: Select from a range of performance-enhancing options: 1, without inflow controller; 2, standard inflow controller; 4, sophisticated 3-way flow controllers for both inlet and outlet (optimal for N 3/3-way valve); 5, reinforced inflow controller for enhanced durability; 8, pre-selectable for tailored operations;
(10) Valve core function symbols: L, M, F, H, J, B, R, O, N;
(11) Output flow code for ports A & B: Choose from our extensive range of available maximum output flows: 3, 6, 10, 16, 25, 40, 63, 80, 120, 160, 210 (L/min), ensuring optimal performance for various demands;
(12) Secondary pressure limitation options: Ensure operational safety with our pressure limitation options: N, no pressure limiting protection; C, comprehensive pressure limitation for actuator ports A & B; A---B---, individualized pressure limitation for actuator ports A & B, unit (bar);
(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; Tailor your control system with precision.
(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 and manual operation (1=without handle, 2=with short handle); D, electric switching value control; DA(1,2), electric switching value control and manual operation (1=without handle, 2=with short handle); M, manual friction positioning with long handle; H, pure hydraulic control (two pilot oil ports align with oil ports A and B); F, pure hydraulic control (two pilot oil ports are perpendicular to oil ports A and B and outward respectively); Experience unmatched flexibility and control.
(15) Ancillary block port sizes: /2 G3/8; /3 G1/2; /4 G3/4; /5 G1;
(16) End plate options: E1, standard end plate, external discharge of pilot oil, connecting oil return control port T externally; E2, similar to E1, external discharge of pilot oil, port Y is additionally attached; E3, external discharge of pilot oil, a 2-position 3-way magnetic ball valve is mounted; in power supply scenarios, the system pressure rises to the safety valve pressure; Tailor your system's functionality with these versatile end plate options,
E4, similar to E1, internal discharge of pilot oil, port T can be sealed; E5, similar to E2, internal discharge of pilot oil, port T can be sealed; E6, similar to E3, internal discharge of pilot oil, port T can be sealed; offering dependable and robust performance.
(17) Control voltage and the length of anti-explosion type cable options: G12-12VDC;G24-24VDC; G24Ex-3m-24VDC; G12Ex-3m-12VDC; G24MA-3m-24VDC; G123d8c99f0
Since our founding in 2009, Jiangsu KM Hydraulic Control System Co., Ltd. has been a beacon of pioneering excellence in the hydraulic industry. As an esteemed subsidiary under the prestigious China Baoan Group (stock code: 000009), we have proudly risen as a national high-tech enterprise of repute. Our prowess is evident in the intricate research, cutting-edge development, and precision manufacturing of superior hydraulic components. Our recognition as a national 'specialized, refined, and innovative' small giant enterprise highlights our steadfast commitment to technological innovation and unmatched quality. This dedication firmly establishes us as trailblazers in the industry.
Our flagship product, the Load-Sensitive Proportional Valve, represents the zenith of advanced hydraulic system control. Meticulously crafted for construction machinery and robust equipment, this adaptable component is crucial for high-pressure applications, including emergency rescue missions, tunnel engineering, mining endeavors, and municipal service vehicles. We pride ourselves on our strategic partnerships with numerous leading domestic manufacturers, significantly contributing to the localization of core hydraulic components for high-end mechanical apparatus. Anchored by our core philosophy-"serving customers with technology, impressing customers with our attitude, and retaining customers with quality"-we are unwavering in our promise to provide exceptional products, stellar services, and innovative solutions. Our mission is to become a globally recognized and trusted supplier of premier hydraulic components, setting new standards of excellence on a global scale.
Customer Inquiry:1. What about the lead time?
Our Response: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.
Customer Inquiry:2. Do you have any MOQ limit for LED light orders?
Our Response: 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.
Customer Inquiry:3. How to proceed with an order for LED lights?
Our Response: Start by informing us of your detailed requirements or applications. We will then provide you with a customized quote based on your needs or our expert recommendations. Once you confirm the drawings and place a deposit, we will formalize the order and arrange production. Every specification will be meticulously met, ensuring a seamless and tailored solution.drawings,and place a deposit to formalize the order. Finally, we will arrange production, ensuring that every specification is met to perfection, delivering a seamless and tailored solution.
Customer Inquiry:4. Is it OK to print my logo on the product?
Our Response: 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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