Introducing a new era in hydraulic control technology with our groundbreaking HLPSL and HLPSV load-sensitive proportional multi-way directional spool valves. These engineering marvels seamlessly integrate pressure, flow, and directional control into one cohesive unit, ensuring unparalleled performance and reliability. Crafted with precision, these valves are composed of three essential functional modules: connecting blocks, directional valves, and end plates, all meticulously designed for integration into high-end hydraulic systems vital in elite engineering machinery. They expertly manage the movement direction and speed of hydraulic cylinders, motors, and other actuators, delivering unmatched precision and control. Key highlights include their compact structure, superior energy efficiency, and the ability for stepless speed control. Moreover, they permit multiple actuators to operate concurrently under varying loads, offering unmatched performance and versatility for any application.
The HLPSL valves are expertly tailored for systems with constant displacement pumps, ensuring constant and reliable operation. On the other hand, the HLPSV valves are ingeniously engineered for systems with variable pumps. Although HLPSV valves might show a slightly slower response time, they stand out with their exceptional energy-saving performance, making them the ultimate choice for applications where efficiency is key. With their cutting-edge engineering and energy-efficient design, HLPSV valves rise as the premier solution for advanced hydraulic control demands.
| 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)Fundamental Code of Connection Block
HLPSL: Constant Displacement Pump;
HLPSV: Variable Displacement Pump;
(2) Port P & R Specifications of the Connection Block:
2-G3/8;
3-G1/2;
4-G3/4;
5, 55-G1;
6-G1 1/4;
(3)Additional Component Details:
C,Standard Type;
G,Throttle Valve (Applicable Exclusively to HLPSL);
H,Fixed Differential Overflow Valve Enhancing Circulating Pressure (approximately 14 bar, HLPSL);
(4)Pilot Oil Circuit Pressure:0 without pressure reducing valve; 1 with pressure reducing valve (20 bar); 2 with pressure reducing valve (40 bar);
(5)2/2-way Magnetic Ball Valve for System Unloading: C, without magnetic ball valve; F, normally open magnetic ball valve (pressurized under power, unloads on power failure); D, normally closed magnetic ball valve (unloads under power, pressurized on power failure);../F. Pressure Limiting Valve as secondary pressure (F50) with specified pressure value indicated;
(6)Tool Adjustable Pressure Limiting Valve in the Connection Block: Adjustable to pressure settings such as 63, 120, 210, 280, 315, 350, 400 bar; /NF: without pressure limiting valve (HLPSV only);
(7)Product Series: -2 series;;-3 series; -5 series;
(8)Precision Thread Size Options for Directional Spool Valve Ports A & B: Standard Size 2-GVersatile Options: 3/8; 3-G1/2; 4-G3/4; 5-G1. Includes A, ancillary block or intermediate transition block ZPL 5S(V)/H hydraulic control shut-off valve;
(9)Enhanced Directional Valve Block Inflow Controllers: 1, without inflow controller; 2, standard inflow controller; 4, 3-way flow controllers for inlet and outlet, optimal for N 3/3-way valve configurations; 5, strengthened inflow controller; 8, pre-selectable options for tailored performance;
(10) Comprehensive Function Symbol of Valve Core: L, M, F, H, J, B, R, O, N for diverse applications;
(11) Tailored Output Flow Options for Ports A & B: Select from maximum output flows - 3, 6, 10, 16, 25, 40, 63, 80, 120, 160, 210 (L/min), ensuring optimal flow management;
(12) Sophisticated Secondary Pressure Limitation: N, no pressure limiting protection; C, simultaneous pressure limit for actuator ports A & B; A---B---, separate pressure limit for actuator ports A & B, unit (bar), for precision control;
(13) Advanced Function ON/OFF and Pressure Outlets: 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, for customizable utility;
(14) Diverse Operation Manner: 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 flexibility and precision;
(15) Adaptable Ancillary Block Sizes: /2 Ancillary block port size G3/8; /3 Ancillary block port size G1/2; /4 Ancillary block port size G3/4; /5 Ancillary block port size G1, for seamless integration;
(16) Versatile End Plate Configurations: 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, ensuring robust performance;
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, for enhanced flexibility and reliability;
(17) Customized Control Voltage and Anti-Explosion Type Cable Lengths: G12-12VDC;G24-24VDC; G24Ex-3m-24VDC; G12Ex-3m-12VDC; G24MA-3m-24VDC; G12MA-3m-12VDC (anti-explosion type, lengths of guide line available: 3m, 5m, 10m, etc.)
Since our inception in 2009, Jiangsu KM Hydraulic Control System Co., Ltd. has emerged as a beacon of groundbreaking innovation and unmatched excellence in the hydraulic industry. As a prestigious member of the China Baoan Group (stock code: 000009), we are proud to be recognized as a national high-tech enterprise. Our forte lies in the research, development, manufacturing, and sales of premium hydraulic components. Our esteemed status as a national 'specialized, refined, and innovative' small giant enterprise signifies our relentless dedication to technological advancement and superior quality, positioning us as a leader in the field.
Introducing our flagship marvel, the load-sensitive proportional valve, expertly crafted to redefine advanced hydraulic system control. Designed with precision for construction machinery and robust heavy-duty equipment, this versatile component is critical in high-stakes applications, including emergency rescue operations, tunnel engineering, mining, and municipal service vehicles. We establish strategic collaborations with leading domestic manufacturers, pivotal for localizing core hydraulic components in high-end mechanical equipment. Anchored by our core philosophy-'serving customers with technology, impressing customers with our attitude, and retaining customers with quality'-we are unwavering in our commitment to delivering exceptional products, services, and solutions. Our mission is to rise as a globally trusted supplier of premier hydraulic components, setting unprecedented standards of excellence worldwide.
Question:1. What about the lead time?
Answer:The lead time for production is typically one month following receipt of payment. This timeframe allows us to ensure meticulous preparation and stringent quality control for optimal results, ensuring 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. Even a single piece can be ordered for sample checking to meet your specific needs, providing ultimate flexibility for your projects.
Question:3. How to proceed with an order for LED lights?
Answer: First, inform us of your detailed requirements or application. Second, we will provide a customized quote based on your needs or our expert recommendations. Third, you confirm thedrawings,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. Please inform us formally before production begins, and confirm the design based on the sample we provide. This ensures your branding is perfectly represented with precision and quality.
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