Introducing the avant-garde HLPSL and HLPSV load-sensitive proportional multi-way directional spool valves. These sophisticated engineering masterpieces are designed to seamlessly amalgamate pressure, flow, and directional control into one cohesive unit, offering unparalleled performance and dependability. Constructed with three indispensable functional modules - connecting blocks, directional valves, and end plates - these valves are meticulously engineered for integration into elite hydraulic systems, essential for cutting-edge engineering machinery. They meticulously regulate the movement direction and speed of hydraulic cylinders, motors, and other actuators, ensuring remarkable precision and control. Key features include a compact structure, exceptional energy efficiency, and the ability for stepless speed control. In addition, they allow multiple actuators to function simultaneously under varying loads, delivering unmatched performance and adaptability for any application.
The HLPSL valves are expertly designed for constant displacement pump systems, ensuring consistent and reliable operation. In contrast, the HLPSV valves are masterfully crafted for variable pump systems. Although HLPSV valves may present a slightly slower response time, they excel in providing outstanding energy-saving performance, making them the ultimate choice for applications where efficiency is of utmost importance. With their state-of-the-art engineering and energy-efficient design, HLPSV valves stand out as the premier solution for sophisticated 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 - Showcasing adaptability at its pinnacle.;
(2) Connection Block Ports P & R Specifications - Delivering precision you can trust::
2-G3/8; Engineered for compactness and efficiency.
3-G1/2; Renowned for its reliability and robustness.;
4-G3/4; Offering advanced connectivity solutions.;
5, 55-G1; Ensures superior flow rate efficiency.;
6-G1 1/4; Delivers unmatched performance in every application.;
(3) Additional Components and Specifications - Amplifying system capabilities::
C,Standard Type - A dependable baseline for any operation.;
G,Throttle Valve (For HLPSL only) - Ensuring precision control.;
H,Fixed Differential Overflow Valve for Enhanced Circulating Pressure (~14 bar, HLPSL) - Optimizing flow management seamlessly.;
(4) Pilot Oil Circuit Pressure Options - Offering customizable pressure control:0 - No pressure reducing valve; 1 - Pressure reducing valve (20 bar); 2 - Pressure reducing valve (40 bar); Precisely tailored for your distinctive needs.
(5) 2/2-way Magnetic Ball Valve for System Unloading - Streamlining 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. . , Equipped with a pressure limiting valve for secondary pressure (F50) with a specified pressure value; Elevates safety measures to new heights.
(6) Tool Adjustable, Pressure Limiting Valve in Connection Block: Settings available at 63, 120, 210, 280, 315, 350, 400 bar; /NF: No pressure limiting valve (HLPSV only); Ensures optimal pressure control for enhanced system reliability.
(7) Product Series Classification - Identifying excellence: Explore our diverse array of offerings, each series designed to meet the highest standards of precision and reliability for unparalleled performance and adaptation.;-2 2 Series; -3 3 Series; -5 5 Series; Tailored for every application. These series epitomize customization and flexibility, ensuring seamless integration into any system requirement.
(8)Thread size of directional spool valve ports A & B: Offering precision threading options for flawless connectivity and performance in critical applications.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 from a variety of thread sizes for optimal compatibility.
(9)Directional valve block inflow controller options: 1, without inflow controller; 2, standard inflow controller; 4, 3-way flow controllers for both inlet and outlet (ideal for N 3/3-way valve); 5, strengthened inflow controller; 8, pre-selectable; Select from a range of inflow controllers, each engineered to enhance fluid management and operational efficiency.
(10) Valve core function symbols: L, M, F, H, J, B, R, O, N; These symbols represent a wide array of valve core functionalities, offering tailored solutions for diverse hydraulic requirements.
(11) Output flow code for ports A & B: Available maximum output flows: 3, 6, 10, 16, 25, 40, 63, 80, 120, 160, 210 (L/min); Tailor your system's flow capacity with our extensive range of output flow options, ensuring precision in every application.
(12) Secondary pressure limitation options: N, no pressure limiting protection; C, limit the pressure of actuator ports A & B simultaneously; A---B---, limit the pressure of actuator ports A & B separately, unit (bar); Implement robust secondary pressure limitations with our versatile options, designed to protect and optimize system 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; B, electrical ON/OFF on side B; Customize your hydraulic control with function ON/OFF and pressure outlet options, maximizing utility and control.
(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); Benefit from a spectrum of operation modes, from manual to electric control, each designed for precision and ease of use in complex environments.
(15) Ancillary block port sizes: /2 G3/8; /3 G1/2; /4 G3/4; /5 G1; Choose from multiple ancillary block port sizes for seamless integration and enhanced system compatibility.
(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; Discover end plate configurations designed for optimal oil discharge and system protection, adaptable to specific operational requirements.
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; Enhance system integrity with our end plate options, offering versatile sealing capabilities for internal discharge management.
(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 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.
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.
Audited Supplier 
){kind=link}