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 single, 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 crafted 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. Furthermore, they enable 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. While 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) Basic Code of Connection Block
HLPSL: Constant Displacement Pump;
HLPSV: Variable Displacement Pump;
(2) Port P & R of the Connection Block:
2-G3/8;
3-G1/2;
4-G3/4;
5, 55-G1;
6-G1 1/4;
(3) Additional Component:
C,Standard Type;
G,Throttle Valve (Only used for HLPSL);
H,Fixed Differential Overflow Valve for Enhancing Circulating Pressure (~14 bar, HLPSL);
(4) Pilot Oil Circuit Pressure Options: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, 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, serves as secondary pressure (F50) with indicated pressure value;
(6) Tool Adjustable, Pressure Limiting Valve in Connection Block: Sets available at 63, 120, 210, 280, 315, 350, 400 bar; /NF: Without pressure limiting valve (HLPSV only);
(7) Product Series: -2 Series;-3 3 Series; -5 5 Series;
(8)Thread size of directional spool valve ports A & B:2-GChoose between the following thread sizes for ports A & B: 3/8; 3-G1/2; 4-G3/4; 5-G1. Additionally, consider the ancillary block or intermediate transition block ZPL 5S(V)/H hydraulic control shut-off valve for enhanced control and flexibility.
(9)Directional valve block inflow controller options: 1, without inflow controller; 2, standard inflow controller; 4, 3-way flow controllers for inlet and outlet, ideal for N 3/3-way valve applications; 5, strengthened inflow controller; 8, pre-selectable control for superior performance.
(10) Flexible function symbols of valve core: L, M, F, H, J, B, R, O, N;
(11) Output flow code of ports A & B: Various output flow rates available, select from 3, 6, 10, 16, 25, 40, 63, 80, 120, 160, 210 (L/min) to meet your specific needs.
(12) Secondary pressure limitation options: N, no pressure limiting protection; C, simultaneous pressure limitation for actuator ports A & B; A---B---, individual pressure limitation for actuator ports A & B, measured in bar.
(13) Function ON/OFF and pressure outlet options: N, no 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 enhanced control.
(14) Operation methods: 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).
(15) Ancillary block port sizes available: /2 G3/8; /3 G1/2; /4 G3/4; /5 G1; Choose the appropriate size for optimal performance.
(16) End plate options: E1, standard end plate with external discharge of pilot oil, connecting oil return control port T externally; E2, similar to E1 with an additional port Y; E3, includes a 2-position 3-way magnetic ball valve for systems where pressure rises to the safety valve pressure under power supply.
E4, similar to E1, with internal discharge of pilot oil and a sealable port T; E5, similar to E2, with internal discharge of pilot oil and a sealable port T; E6, similar to E3, with internal discharge of pilot oil and a sealable port T.
(17) Control voltage and anti-explosion type cable lengths: G12-12VDC;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 epitomized groundbreaking innovation and unmatched excellence in the hydraulic industry. As a prestigious subsidiary of the renowned China Baoan Group (stock code: 000009), we proudly stand as a distinguished national high-tech enterprise. Specializing in the research, development, manufacturing, and sales of top-tier hydraulic components, our esteemed status 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 vanguards in our field.
Our flagship product, the Safety Technology Proportional Valve for Load Sensitive Applications, represents the pinnacle of advanced hydraulic system control. Expertly crafted for construction machinery and heavy-duty equipment, this versatile and adaptable component proves indispensable in 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.
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 the drawings,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.
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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