Introducing our groundbreaking HLPSL and HLPSV load-sensitive proportional multi-way directional spool valves! These engineering marvels seamlessly integrate pressure, flow, and directional control into a singular, harmonious unit, ensuring exceptional performance and reliability. Comprising three essential functional modules-connecting blocks, directional valves, and end plates-these valves are meticulously crafted for incorporation into high-end hydraulic systems, crucial for top-tier engineering machinery. They precisely manage 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, they enable multiple actuators to operate simultaneously under varying loads, providing unmatched performance and versatility in 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 state-of-the-art engineering and an 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 for Connection Block Configuration
HLPSL: High-Efficiency Constant Displacement Pump;
HLPSV: High-Performance Variable Displacement Pump;
(2)Port P & R Specifications for Connection Block:
2-G3/8;
3-G1/2;
4-G3/4;
5, 55-G1;
6-G1 1/4;
(3)Specifications for Additional Components:
C,Standard Type;
G,Precision Throttle Valve (Exclusive to HLPSL);
H,Fixed Differential Overflow Valve to Optimize Circulating Pressure (approx. 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 during power failure; D- Normally closed magnetic ball valve, unloads pump when powered, pressurizes pump during power failure;../F. , Equipped with Pressure Limiting Valve, functions as secondary pressure (F50) with specified pressure values;
(6)Tool-Adjustable Pressure Limiting Valve in Connection Block: Available pressure settings: 63, 120, 210, 280, 315, 350, 400 bar; /NF- Without pressure limiting valve (Only for HLPSV);
(7)Product Series Options: -2 series;-3 series; -5 series;
(8)Thread size of directional spool valve ports A & B: 2-G3/8; 3-G1/2; 4-G3/4; 5-G1; A, ancillary block or intermediate transition block ZPL 5S(V)/H hydraulic control shut-off valve;
(9)Directional valve block inflow controller: 1, without inflow controller; 2, standard inflow controller; 4, 3-way flow controllers for inlet and outlet (ideal for N 3/3-way valve); 5, strengthened inflow controller; 8, pre-selectable;
(10) Function symbol of valve core: L, M, F, H, J, B, R, O, N;
(11) Output flow code of ports A & B: Choose from maximum output flows of ports A & B: 3, 6, 10, 16, 25, 40, 63, 80, 120, 160, 210 (L/min);
(12) Secondary pressure limitation: N, no pressure limiting protection; C, limit the pressure of actuator ports A & B simultaneously; A---B---, limit the pressure of actuator ports A & B separately, unit (bar);
(13) Function ON/OFF and pressure outlet: 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: 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: /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: E1, standard end plate, external discharge of pilot oil, connecting oil return control port T externally; E2, similar to E1, external discharge of pilot oil, port Y is additionally attached; E3, external discharge of pilot oil, a 2-position 3-way magnetic ball valve is mounted; in power supply scenarios, the system pressure rises to the safety valve pressure;
E4, similar to E1, internal discharge of pilot oil, port T can be sealed; E5, similar to E2, internal discharge of pilot oil, port T can be sealed; E6, similar to E3, internal discharge of pilot oil, port T can be sealed;
(17) Control voltage and the 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, length of guide line: 3m, 5m, 10m, etc.)
Since our inception in 2009, Jiangsu KM Hydraulic Control System Co., Ltd. has swiftly risen as a symbol of groundbreaking innovation and unparalleled excellence in the hydraulic industry. As a prestigious member of the China Baoan Group (stock code: 000009), we are honored to be recognized as a national high-tech enterprise. Our expertise spans the research, development, manufacturing, and sales of top-tier hydraulic components. Our revered status as a national 'specialized, refined, and innovative' small giant enterprise underscores our unwavering commitment to technological advancement and superior quality, firmly establishing us as industry leaders.
Our flagship product, the load-sensitive proportional valve, epitomizes advanced hydraulic system control. Precisely engineered for construction machinery and heavy-duty equipment, this versatile and adaptive component is crucial in high-stakes applications such as emergency rescue operations, tunnel engineering, mining, and municipal service vehicles. We take pride in strategic collaborations with numerous leading domestic manufacturers, significantly contributing to the localization of 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 remain steadfast in our devotion 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 carefully considered timeframe allows us to meticulously prepare and conduct stringent quality control, ensuring your products are delivered flawlessly and meet the highest standards of excellence.
Question:2. Do you have any MOQ limit for LED light orders?
Answer: We offer an exceptionally low minimum order quantity, making even a single piece available for sample checking. This affords you maximum flexibility to meet your specific needs, whether small or large-scale projects.
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Answer: First, inform us of your detailed requirements or application. Second, we will provide a tailored quote based on your needs or our expert recommendations. Third, you confirm thedrawings,and place a deposit to formalize the order. Finally, we will orchestrate production, ensuring that every specification is met with precision, delivering a seamless and customized 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 process ensures your branding is represented with utmost precision and quality, enhancing your product's appeal.
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