Introducing the pinnacle of hydraulic innovation: our groundbreaking HLPSL and HLPSV load-sensitive proportional multi-way directional spool valves. These revolutionary engineering marvels seamlessly merge pressure, flow, and directional control into a singular, harmonious unit, guaranteeing unmatched performance and unwavering reliability. With an intricate design, they typically consist of three essential functional modules-connecting blocks, directional valves, and end plates-crafted meticulously for seamless integration into high-end hydraulic systems, which are pivotal in top-tier engineering machinery. These valves precisely govern the movement direction and speed of hydraulic cylinders, motors, and other actuators, offering unparalleled precision and refined control. Key highlights include an elegantly compact structure, superior energy efficiency, and the capability for stepless speed control. Additionally, they enable multiple actuators to operate simultaneously under varying loads, delivering unrivaled performance and ultimate versatility for any application.
The HLPSL valves are expertly tailored to ensure steadfast and reliable operation within constant displacement pump systems. On the other hand, 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, solidifying their position as the ultimate choice for applications where efficiency is paramount. With their cutting-edge 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)Thread Size for Directional Spool Valve Ports A & B: Precision-engineered with meticulous detail, ensuring optimal fit and function. Choose from the industry-standard options that cater to your specific requirements: 2-G,3/8; 3-G1/2; 4-G3/4; 5-G1; Including options such as ancillary block or intermediate transition block ZPL 5S(V)/H hydraulic control shut-off valve, offering versatility and adaptability in complex hydraulic systems.
(9)Directional Valve Block Inflow Controller: Tailored solutions for diverse hydraulic needs. Our range includes: 1, No inflow controller for basic configurations; 2, Standard inflow controller for reliable performance; 4, Advanced 3-way flow controllers ideal for N 3/3-way valve applications; 5, Reinforced inflow controller for enhanced capacity; 8, Pre-selectable options for customized control.
(10) Valve Core Function Symbols: A variety of configurations to suit specific operational demands: L, M, F, H, J, B, R, O, N.
(11) Output Flow Code for Ports A & B: Choose maximum output flows to match your system's requirements: Options include 3, 6, 10, 16, 25, 40, 63, 80, 120, 160, 210 (L/min) ensuring precision and efficiency.
(12) Secondary Pressure Limitation: Offers comprehensive pressure management with options like N, no pressure limiting protection; C, simultaneous limitation for actuator ports A & B; A---B---, separate limitation for each port, all measured in units of bar.
(13) Function ON/OFF and Pressure Outlet: Flexible configurations to suit individual needs: 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 Manner: Diverse control options tailored to specific operational preferences: A(1,2), manual operation with long handle (1=without handle, 2=with short handle); E, electric proportional control for precision; EA(1,2), combination of electric proportional control and manual operation; D, electric switching value control for dynamic application; DA(1,2), integrated electric switching and manual operation; M, manual friction positioning with long handle for stability; H, pure hydraulic control (alignment with oil ports); F, pure hydraulic control (perpendicular alignment to oil ports).
(15) Ancillary Block: Customized auxiliary options to enhance functionality: /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: Comprehensive end plate configurations for optimal system integration: E1, standard design with external pilot oil discharge; E2, enhanced variant of E1 with additional port Y; E3, equipped with 2-position 3-way magnetic ball valve, ensuring system pressure rises to safety valve pressure when powered.
E4, similar to E1, features internal pilot oil discharge with sealable port T; E5, variant of E2 with internal oil discharge, sealable port T; E6, akin to E3 with internal oil discharge, sealable port T for enhanced system integrity.
(17) Control Voltage and Anti-Explosion Type Cable Length: Precision voltage control with robust anti-explosion cable options: G12-12VDC;G24-24VDC; G24Ex-3m-24VDC; G12Ex-3m-12VDC; G24MA-3m-24VDC; providing reliable performance in challenging environments.12MA-3m-12VDC (anti-explosion type, available in guide line lengths of 3m, 5m, 10m, etc.) catering to diverse operational needs.
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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