Introducing our groundbreaking HLPSL and HLPSV load-sensitive proportional multi-way directional spool valves, the epitome of innovation in hydraulic control technology. These extraordinary engineering achievements seamlessly blend pressure, flow, and directional control into one cohesive, elegant unit that promises unparalleled performance and reliability. Typically consisting of three essential functional modules-connecting blocks, directional valves, and end plates-these valves are meticulously crafted for integration into high-end hydraulic systems, crucial in elite engineering machinery. They precisely regulate the movement direction and speed of hydraulic cylinders, motors, and other actuators, offering unmatched precision and control. Key highlights include a compact structure, outstanding energy efficiency, and the ability for stepless speed control. Furthermore, they empower multiple actuators to operate simultaneously under diverse loads, providing unrivaled performance and versatility across any application.
The HLPSL valves are expertly crafted for constant displacement pump systems, ensuring steadfast and reliable operation. Meanwhile, the HLPSV valves are ingeniously designed for variable pump systems. Although HLPSV valves may exhibit a slightly slower response time, they excel in delivering extraordinary energy-saving performance, making them the ultimate choice for applications where efficiency is paramount. With their state-of-the-art engineering and energy-efficient design, HLPSV valves stand out 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
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)Essential Thread Size for Directional Spool Valve Ports A & B: 2-G3/8; 3-G1/2; 4-G3/4; 5-G1; A, embrace the versatility of the ancillary block or intermediate transition block ZPL 5S(V)/H in the hydraulic control shut-off valve;
(9)Directional Valve Block Inflow Controller Options: 1, Opt for precision without inflow controller; 2, Standard inflow controller; 4, 3-way flow controllers for both inlet and outlet for optimal N 3/3-way valve performance; 5, Strengthened inflow controller for enhanced management; 8, Pre-selectable for customized control;
(10) Varied Functional Symbols of Valve Core: L, M, F, H, J, B, R, O, N;
(11) Output Flow Capacity of Ports A & B: Select from a range of maximum output flows: 3, 6, 10, 16, 25, 40, 63, 80, 120, 160, 210 L/min;
(12) Secondary Pressure Limitation Options: N, no pressure limiting protection for uninhibited operation; C, simultaneous pressure limitation at actuator ports A & B; A---B---, separate pressure limitation for each actuator port A & B, unit measured in bar;
(13) Function ON/OFF and Pressure Outlet Choices: N, without function ON/OFF and pressure outlet; X C-type pressure limitation; S/S1 AB-type pressure limitation; A, electrical ON/OFF conveniently on side A; B, electrical ON/OFF strategically on side B;
(14) Diverse Operation Modes: A(1,2), manual operation with an extended handle (1=without handle, 2=with short handle); E, electric proportional control for seamless operation; EA(1,2), combined electric proportional control and manual operation (1=without handle, 2=with short handle); D, electric switching value control for precise adjustments; DA(1,2), electric switching value control coupled with manual operation (1=without handle, 2=with short handle); M, manual friction positioning utilizing a long handle; H, pure hydraulic control with two pilot oil ports aligned with oil ports A and B; F, pure hydraulic control with two pilot oil ports perpendicular to oil ports A and B and outward respectively;
(15) Ancillary Block Specifications: /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;
(16) End Plate Variants: E1, standard end plate with external pilot oil discharge, connection to oil return control port T externally; E2, akin to E1 with external pilot oil discharge and additional port Y; E3, external discharge of pilot oil, featuring a 2-position 3-way magnetic ball valve for controlled system pressure rise to safety valve pressure in power supply scenarios;
E4, similar to E1 with internal discharge of pilot oil, port T sealable; E5, similar to E2 with internal discharge of pilot oil, port T sealable; E6, similar to E3 with internal discharge of pilot oil, port T sealable;
(17) Control Voltage and Length of Anti-Explosion Type Cable: G12-12VDC;G24-24VDC; G24Ex-3m-24VDC; G12Ex-3m-12VDC; G24MA-3m-24VDC; G12MA-3m-12VDC (anti-explosion type, available in guide line lengths of 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.
Our flagship product, the load-sensitive proportional valve, stands at the pinnacle of advanced hydraulic system control. Meticulously engineered to serve 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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