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 singular, 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 designed 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. Additionally, they allow 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. Although 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)Fundamental Code of Connection Block: Essential Configuration
HLPSL: Constant Displacement Pump - Engineered for Consistent Flow;
HLPSV: Variable Displacement Pump - Adaptable for Versatile Needs;
(2) Port P & R Specifications of the Connection Block: Tailored for Precision:
2-G3/8; Ideal for Compact Applications
3-G1/2; Perfect for Moderate Flow Systems;
4-G3/4; Designed for Robust Performance;
5, 55-G1; Optimized for Large Scale Operations;
6-G1 1/4; Crafted for Maximum Efficiency;
(3)Additional Component Details: Comprehensive Insights:
C,Standard Type; A Benchmark of Quality;
G,Throttle Valve (Applicable Exclusively to HLPSL); Maximizing Control;
H,Fixed Differential Overflow Valve Enhancing Circulating Pressure (approximately 14 bar, HLPSL); Ensuring Uninterrupted Flow;
(4)Pilot Oil Circuit Pressure: Tailored Pressure Management0 without pressure reducing valve; 1 with pressure reducing valve (20 bar); 2 with pressure reducing valve (40 bar); Choice for Optimal System Balance
(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); Versatile Unloading Options../F. Pressure Limiting Valve as secondary pressure (F50) with specified pressure value indicated; Ensures Safe Operating Parameters
(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); Facilitates Fine-Tuned Pressure Control
(7)Product Series: -2 series; Versatile Portfolio;-3 series; -5 series; Comprehensive Range of Options
(8)Explore the versatility of our directional spool valve ports A & B, perfect for adapting to any threading requirement: 2-G is your go-to choice for seamless integration.Our diverse range includes 3/8; 3-G1/2; 4-G3/4; 5-G1, complemented by the A-type ancillary block or the sophisticated ZPL 5S(V)/H hydraulic control shut-off valve for enhanced performance.
(9)Discover the flexibility of our directional valve block inflow controllers: 1. Choose without inflow controller for a no-fuss setup; 2. Opt for standard inflow controller for balanced performance; 4. Select from 3-way flow controllers tailored for inlet and outlet, ideal for N 3/3-way valve; 5. Strengthened inflow controller for robustness; 8. Pre-selectable options available to suit your specific needs.
(10) Tailor the function symbol of your valve core with options like L, M, F, H, J, B, R, O, N for a personalized touch.
(11) Optimize the output flow of ports A & B with a selection of maximum output flows: 3, 6, 10, 16, 25, 40, 63, 80, 120, 160, 210 (L/min) to match your operational demands.
(12) Manage pressure with precision: N for no pressure limiting protection; C to limit the pressure of actuator ports A & B simultaneously; A---B--- to limit the pressure of actuator ports A & B separately, measured in bar.
(13) Enhance operational efficiency with function ON/OFF and pressure outlet capabilities: N for simplicity without function ON/OFF; X C type for pressure limitation; S/S1 AB type for pressure limitation; A for electrical ON/OFF on side A; B for electrical ON/OFF on side B.
(14) Select your preferred operation manner: A(1,2) for manual operation with a long handle; E for electric proportional control; EA(1,2) combines electric proportional control and manual operation for versatile use; D for electric switching value control; DA(1,2) merges electric switching value control with manual operation; M for manual friction positioning with a long handle; H for pure hydraulic control with two pilot oil ports aligned with oil ports A and B; F for pure hydraulic control with pilot oil ports perpendicular to oil ports A and B and directed outward.
(15) Customize your setup with the right ancillary block: /2 for G3/8 size ports; /3 for G1/2 size ports; /4 for G3/4 size ports; /5 for G1 size ports.
(16) Choose the perfect end plate for your system: E1 offers a standard end plate with external discharge of pilot oil and an external oil return control port T; E2 is similar to E1 but with an additional port Y; E3 features external discharge of pilot oil with a 2-position 3-way magnetic ball valve for system pressure control scenarios.
E4 provides internal discharge of pilot oil with a sealable port T, similar to E1; E5 is akin to E2 with sealable port T; E6 mirrors E3 with internal discharge and sealable port T.
(17) Control voltage and anti-explosion type cable lengths to suit your needs: G12-12VDC;G24-24VDC; G24Ex-3m-24VDC; G12Ex-3m-12VDC; G24MA-3m-24VDC; G12MA-3m-12VDC (anti-explosion type, available in lengths of 3m, 5m, 10m, and more for ultimate flexibility).
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.
Our flagship product, the load-sensitive proportional valve, stands at the pinnacle of advanced hydraulic system control. Meticulously engineered for construction machinery and heavy-duty equipment, this versatile and adaptable component is indispensable in high-stakes applications such as emergency rescue operations, tunnel engineering, mining, and municipal service vehicles. We pride ourselves on strategic collaborations with numerous leading domestic manufacturers, playing a pivotal role in localizing core hydraulic components for 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 steadfast 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 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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