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 foundational element ensuring steadfast and consistent hydraulic performance.;
HLPSV: Variable Displacement Pump - The ultimate in adaptive performance, responding dynamically to your needs.;
(2) Connection Block Ports P & R Specifications - Reliability and precision personified::
2-G3/8; Ingeniously compact, yet remarkably efficient.
3-G1/2; Synonymous with reliability and robust performance.;
4-G3/4; Ingenious connectivity for exceptional performance.;
5, 55-G1; Delivering exceptional flow rates to ensure optimal fluid dynamics.;
6-G1 1/4; Unparalleled in both performance and reliability.;
(3) Additional Components and Specifications - Revolutionizing system capabilities beyond expectations::
C,Standard Type - A reliable foundation for versatile applications.;
G,Throttle Valve (For HLPSL only) - Precision control at its finest.;
H,Fixed Differential Overflow Valve for Enhanced Circulating Pressure (~14 bar, HLPSL) - Achieving optimal flow management with mastery.;
(4) Pilot Oil Circuit Pressure Options - Custom-tailored pressure control solutions:0 - No pressure reducing valve; 1 - Pressure reducing valve (20 bar); 2 - Pressure reducing valve (40 bar); Meticulously tailored for precise requirements.
(5) 2/2-way Magnetic Ball Valve for System Unloading - Streamlined solutions for enhanced efficiency:C - No magnetic ball valve; F - Normally open magnetic ball valve, powers pressurization and unpowers unloading; D - Normally closed magnetic ball valve, powers unloading and unpowers pressurization; D./F. . , Featuring a pressure limiting valve for secondary pressure (F50) with precise pressure value; Pioneering top-tier safety measures.
(6) Tool Adjustable, Pressure Limiting Valve in Connection Block: Our versatile settings are available at 63, 120, 210, 280, 315, 350, and 400 bar; for those requiring precise calibration, choose /NF for systems without a pressure limiting valve (HLPSV only). Ensuring unparalleled pressure control and safety is our promise to you.
(7) Product Series Classification - Identifying Excellence: Uncover the premium quality and tailored functionality inherent in each series.;-2 2 Series; -3 3 Series; -5 5 Series; Perfectly crafted to meet the diverse needs of every application with unmatched precision.
(8)Thread Size of Directional Spool Valve Ports A & B: Select from sizes that cater to your specific operational demands.2-G3/8; 3-G1/2; 4-G3/4; 5-G1; A, ancillary block or intermediate transition block ZPL 5S(V)/H hydraulic control shut-off valve; Choose the perfect fit for seamless integration and superior performance.
(9)Directional Valve Block Inflow Controller Options: Tailor your system with 1, without inflow controller; 2, standard inflow controller; 4, advanced 3-way flow controllers for precision inlet and outlet management, ideal for N 3/3-way valves; 5, strengthened inflow controller; and 8, pre-selectable for optimal adaptability.
(10) Valve Core Function Symbols: Discover the versatility with symbols like L, M, F, H, J, B, R, O, N, to enhance your control systems.
(11) Output Flow Code for Ports A & B: Choose from an impressive range of maximum output flows: 3, 6, 10, 16, 25, 40, 63, 80, 120, 160, 210 (L/min), designed to meet every specific requirement.
(12) Secondary Pressure Limitation Options: N, for no pressure limiting protection; C, simultaneous pressure limit at actuator ports A & B; A---B---, individual pressure limitation for enhanced control, measured in units (bar).
(13) Function ON/OFF and Pressure Outlet Options: Customizable options include 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, delivering operational flexibility.
(14) Operation Modes: Adapt to your operational needs with modes like A(1,2), manual operation with options for long and short handles; E, electric proportional control; EA(1,2), a blend of electric proportional control and manual operation; D, dynamic electric switching value control; DA(1,2), a hybrid of electric switching and manual operation; M, manual friction positioning; H and F, pure hydraulic control with innovative pilot oil alignment, enhancing operational efficiency and customization.
(15) Ancillary Block Port Sizes: Choose the perfect match with sizes like /2 G3/8; /3 G1/2; /4 G3/4; /5 G1, engineered for precision and reliability.
(16) End Plate Options: E1, standard end plate with external pilot oil discharge and external connection to the oil return control port T; E2, similar to E1 with an additional attachment at port Y; E3, featuring a 2-position 3-way magnetic ball valve for scenarios where system pressure meets safety valve limits, optimizing for peak safety.
E4, similar to E1 with internal pilot oil discharge, sealing port T; E5, resembling E2 with internal pilot oil discharge, sealing port T; E6, akin to E3 with internal pilot oil discharge, sealing port T; each designed to meet unique system specifications and safety standards.
(17) Control Voltage and the Length of Anti-explosion Type Cable Options: G12-12VDC; Ensuring safety and reliability in demanding environments.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 been a beacon of pioneering innovation and unrivaled excellence in the hydraulic industry. As a proud subsidiary of the illustrious China Baoan Group (stock code: 000009), we shine as a recognized national high-tech enterprise. Our core prowess lies in the meticulous research, development, manufacturing, and sales of premium hydraulic components, a testament to our dedication to technological advancement and superior quality. Our esteemed recognition as a national 'specialized, refined, and innovative' small giant enterprise highlights our unwavering resolve to lead in our field.
Our flagship product, the Precision Load Sensitive Valve for Hydraulic Distributor Applications, represents the zenith of advanced hydraulic system control. Meticulously crafted for construction machinery and heavy-duty equipment, this indispensable component is essential for critical applications in emergency rescue operations, tunnel engineering, mining, and municipal service vehicles. We take immense pride in our strategic alliances with numerous leading domestic manufacturers, playing a pivotal role in the localization of core hydraulic components for top-tier mechanical equipment. Anchored by our core philosophy-'serving customers with technology, impressing customers with our attitude, and retaining customers with quality'-we are steadfast in our commitment to delivering outstanding products, services, and solutions. Our mission is to rise as a globally trusted purveyor of premier hydraulic components, establishing new pinnacles of excellence on the world stage.
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.
Question:2. Do you have any MOQ limit for LED light orders?
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.
Question:3. How to proceed with an order for LED lights?
Answer: 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.
Question:4. Is it OK to print my logo on the product?
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.
Audited Supplier 
){kind=link}