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. Crafted with precision, these valves are typically composed of three essential functional modules-connecting blocks, directional valves, and end plates-meticulously designed to integrate into high-end hydraulic systems, vital 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, these valves enable multiple actuators to operate simultaneously under varying loads, offering 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
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)Thread size of directional spool valve ports A & B: 2-GWith a range of thread sizes available, you can choose from 3/8, 3-G1/2, 4-G3/4, and 5-G1. Enhance your system with options like an ancillary block or intermediate transition block ZPL 5S(V)/H hydraulic control shut-off valve.
(9)Directional valve block inflow controller: Choose the best fit for your needs from options such as 1 (without inflow controller), 2 (standard inflow controller), 4 (3-way flow controllers for both inlet and outlet, perfect for N 3/3-way valve configurations), 5 (strengthened inflow controller), and 8 (pre-selectable).
(10) Function symbol of valve core: With diverse function symbols to cater to different operational needs, select from L, M, F, H, J, B, R, O, and N.
(11) Output flow code of ports A & B: Tailor your solution with output flows from ports A & B available in options of 3, 6, 10, 16, 25, 40, 63, 80, 120, 160, and 210 (L/min). Experience optimal performance tailored to your operations.
(12) Secondary pressure limitation: Choose your secondary pressure protection with options like N (no pressure limiting protection), C (limiting the pressure of actuator ports A & B simultaneously), and A---B--- (limiting the pressure of actuator ports A & B separately), measured in units of (bar).
(13) Function ON/OFF and pressure outlet: Customize your valve control with options such as 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), and B (electrical ON/OFF on side B).
(14) Operation manner: Select the operation manner that best suits your application including A(1,2) (manual operation with a 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 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: Enhance connectivity with our ancillary block port sizes, including /2 (G3/8), /3 (G1/2), /4 (G3/4), and /5 (G1).
(16) End plate: From standard to advanced configurations, select the optimal end plate such as E1 (standard with external discharge of pilot oil and 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 mounted for scenarios where system pressure rises to safety valve pressure).
For internal discharge needs, consider E4 (similar to E1 with port T sealable), E5 (similar to E2 with port T sealable), and E6 (similar to E3 with port T sealable).
(17) Control voltage and the length of anti-explosion type cable: Select the perfect match for your application with G12-12VDC, G24-24VDC, or anti-explosion types like G24Ex-3m-24VDC, G12Ex-3m-12VDC, G24MA-3m-24VDC, and G12MA-3m-12VDC. Choose from diverse guide line lengths including 3m, 5m, 10m, etc.G24-24VDC; G24Ex-3m-24VDC; G12Ex-3m-12VDC; G24MA-3m-24VDC; G12MA-3m-12VDC (anti-explosion type, length of guide line: 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 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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