Introducing the pinnacle of innovation with our HLPSL and HLPSV load-sensitive proportional multi-way directional spool valves. These engineering wonders artfully blend pressure, flow, and directional control into one seamless, cohesive unit, ensuring exceptional performance and reliability. Crafted from three core functional modules - connecting blocks, directional valves, and end plates - these valves are engineered for integration into elite hydraulic systems, essential in top-tier engineering equipment. They expertly regulate the movement direction and speed of hydraulic cylinders, motors, and other actuators, delivering unparalleled precision and control. Standout features include a compact design, outstanding energy efficiency, and the ability for stepless speed control. Additionally, they support simultaneous operation of multiple actuators under varying loads, offering extraordinary performance and versatility for any application.
The HLPSL valves are meticulously designed for constant displacement pump systems, ensuring unwavering and dependable operation. On the other hand, the HLPSV valves are intelligently crafted for variable pump systems. Despite a marginally slower response time, HLPSV valves shine in providing remarkable energy-saving performance, making them the top choice for efficiency-critical applications. With their state-of-the-art engineering and energy-efficient design, HLPSV valves stand out as the leading 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 - The key to consistent and reliable performance.;
HLPSV: Variable Displacement Pump - Adaptability and flexibility at its finest.;
(2) Connection Block Ports P & R Specifications - Precision and reliability you can trust::
2-G3/8; Compact and efficient for streamlined operations.
3-G1/2; Robust and dependable.;
4-G3/4; Advanced connectivity for superior control.;
5, 55-G1; Offering a superior flow rate for high-demand applications.;
6-G1 1/4; Delivering unmatched performance in the field.;
(3) Additional Components and Specifications - Elevating system capabilities::
C,Standard Type - A dependable baseline for your needs.;
G,Throttle Valve (For HLPSL only) - Ensuring precision control.;
H,Fixed Differential Overflow Valve for Enhanced Circulating Pressure (~14 bar, HLPSL) - Optimized flow management to enhance performance.;
(4) Pilot Oil Circuit Pressure Options - Customizable pressure control for various applications:0 - No pressure reducing valve; 1 - Pressure reducing valve (20 bar); 2 - Pressure reducing valve (40 bar); Tailored solutions for your specific needs.
(5) 2/2-way Magnetic Ball Valve for System Unloading - Streamlined efficiency and control: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; Advanced safety measures for secure operations.
(6) Tool Adjustable, Pressure Limiting Valve in Connection Block: Offering versatile adjustable settings at 63, 120, 210, 280, 315, 350, 400 bar; /NF: No pressure limiting valve (HLPSV only); Ensures optimal pressure control tailored to diverse scenarios, enhancing operational efficiency and safety.
(7) Product Series Classification - Identifying excellence in engineering:;-2 2 Series; -3 3 Series; -5 5 Series; Custom-engineered to meet every application need, offering a perfect fit for specific operational requirements.
(8)Precision 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 intermediate transition block ZPL 5S(V)/H hydraulic control shut-off valve for enhanced versatility and seamless integration.
(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; Offering a comprehensive range of inflow controller options to ensure precision and adaptability across various operations.
(10) Valve core function symbols: L, M, F, H, J, B, R, O, N; Providing diverse functional symbols for valve cores to meet specific application needs with flexibility and precision.
(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); Offering a wide range of flow rates to accommodate various industrial requirements with ease and efficiency.
(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); Tailored secondary pressure limitation options for precise control and safety in critical applications.
(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; Offering a variety of function ON/OFF and pressure outlet options for enhanced control and customization.
(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); Offering a diverse range of operation modes for maximum flexibility, precision, and adaptability in various high-demand scenarios.
(15) Ancillary block port sizes: /2 G3/8; /3 G1/2; /4 G3/4; /5 G1; Providing varied ancillary block port sizes for seamless integration and enhanced compatibility with different systems.
(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; Offering a comprehensive array of end plate options designed to optimize performance and secure system safety under diverse operational conditions.
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; Featuring innovative end plate designs with internal and external discharge options to ensure versatility and reliability in complex setups.
(17) Control voltage and the length of anti-explosion type cable options: G12-12VDC; Offering robust control voltage solutions with anti-explosion cable options to ensure safety and durability in high-risk 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 groundbreaking innovation and unmatched excellence within the hydraulic industry. As a proud subsidiary of the illustrious China Baoan Group (stock code: 000009), we are recognized as a distinguished national high-tech enterprise. Our core expertise encompasses the precise research, development, manufacturing, and sales of top-tier hydraulic components. Our prestigious recognition as a national 'specialized, refined, and innovative' small giant enterprise highlights our steadfast commitment to pioneering technology and exceptional quality. This unwavering dedication firmly positions us as leaders in our industry.
Our flagship creation, the load-sensitive proportional valve, represents the zenith of sophisticated hydraulic system control. Meticulously designed for construction machinery and heavy-duty equipment, this indispensable component is critical for high-risk operations including emergency rescue missions, tunnel engineering projects, mining ventures, and municipal service vehicle operations. We are immensely proud of our strategic alliances with numerous leading domestic manufacturers, as we play an essential role in the localization of 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 unwavering in our dedication to delivering outstanding products, services, and solutions. Our mission is to rise as a globally trusted supplier of premier hydraulic components, setting new standards of excellence on the world stage.
Inquiry:1. What about the lead time?
Response:Our production lead time generally spans about one month after the payment is received. This duration allows us to conduct thorough preparations and implement rigorous quality control protocols. We meticulously manage every aspect, ensuring your products arrive with impeccable precision.
Inquiry:2. Do you have any MOQ limit for LED light orders?
Response: We provide an extraordinarily low minimum order quantity, granting you the liberty to order even a single piece for sample evaluation. This flexibility is designed to perfectly accommodate your unique requirements, facilitating a smooth commencement of your projects.
Inquiry:3. How to proceed with an order for LED lights?
Response: Begin by conveying your detailed requirements or intended applications to us. We will craft a tailored quote based on your specifications or guided by our expert advice. Upon confirmation of the drawings and receipt of a deposit, we will finalize the order and initiate production, ensuring every detail is adhered to with precision for a customized 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.
Inquiry:4. Is it OK to print my logo on the product?
Response: Absolutely, you can have your logo printed. Simply inform us officially before production commences and confirm the design based on the sample we supply. This assures that your branding is represented with impeccable precision and quality.
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