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 one harmonious unit, ensuring unmatched performance and reliability. Typically comprised of three essential functional modules-connecting blocks, directional valves, and end plates-these valves are meticulously crafted for high-end hydraulic systems, crucial 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 capacity 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 specifications of directional spool valve ports A & B:2-GOptions: 3/8; 3-G1/2; 4-G3/4; 5-G1. Additionally, incorporate ancillary block or intermediate transition block ZPL 5S(V)/H for hydraulic control shut-off valve.
(9)Inflow controller for directional valve block: 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.
(10) Valve core function symbols: L, M, F, H, J, B, R, O, N.
(11) Output flow codes for ports A & B: Select from the following 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; C - limit pressure at actuator ports A & B simultaneously; A---B--- - limit pressure at actuator ports A & B separately, measured in bar.
(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.
(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 with manual operation (1=without handle, 2=with short handle); D - electric switching value control; DA(1,2) - electric switching value control with 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 options: /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 options: E1 - standard end plate, external discharge of pilot oil, with connecting oil return control port T externally; E2 - similar to E1, with additional port Y; E3 - external discharge of pilot oil, with a 2-position 3-way magnetic ball valve for system pressure rise to safety valve pressure.
E4 - similar to E1 with internal discharge of pilot oil, port T can be sealed; E5 - similar to E2 with internal discharge of pilot oil, port T can be sealed; E6 - similar to E3 with internal discharge of pilot oil, port T can be sealed.
(17) Control voltage and anti-explosion cable length options: G12 - 12VDC; G24 - 24VDC; G24Ex-3m-24VDC; G12Ex-3m-12VDC; G24MA-3m-24VDC.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 stood as a beacon of groundbreaking innovation and unmatched excellence in the hydraulic industry. As a prestigious subsidiary of the renowned China Baoan Group (stock code: 000009), we are proud to be recognized as a 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 load-sensitive proportional valve, epitomizes the pinnacle of advanced hydraulic system control. Expertly 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 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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