Introducing our state-of-the-art HLPSL and HLPSV load-sensitive proportional multi-way directional spool valves. These innovative engineering marvels seamlessly integrate pressure, flow, and directional control into one superior unit, ensuring unparalleled performance and reliability. Typically comprised of three fundamental functional modules-connecting blocks, directional valves, and end plates-these valves are meticulously crafted for integration into high-end hydraulic systems, which are crucial in top-tier engineering machinery. They precisely regulate the movement direction and speed of hydraulic cylinders, motors, and other actuators, providing unparalleled precision and control. Key features include a compact structure, exceptional energy efficiency, and the ability to achieve stepless speed control. Additionally, they enable multiple actuators to operate simultaneously under varying loads, delivering unmatched performance and versatility for any application.
The HLPSL valves are expertly tailored for constant displacement pump systems, ensuring steadfast and reliable operation. 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 providing outstanding energy-saving performance, making them the optimal choice for applications where efficiency is critical. 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)Essential 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)Optional Additional Component:
C,Standard Type;
G,Throttle Valve (Exclusive for HLPSL);
H,Fixed Differential Overflow Valve for Enhanced Circulating Pressure (about 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 (pump pressurized with power, unloading without power); D: Normally closed magnetic ball valve (pump unloading with power, pressurized without power);../F. . , with Pressure Limiting Valve, serving as secondary pressure (F50) with specified pressure value;
(6)Tool Adjustable, Pressure Limiting Valve in Connection Block: Adjustable pressure limiting valve settings such as 63, 120, 210, 280, 315, 350, 400 bar; /NF: Without pressure limiting valve (exclusive for HLPSV);
(7)Product Series Options: -2 series;-3: 3 series; -5: 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 options: 1. Without inflow controller; 2. Standard inflow controller; 4. Three-way flow controllers for inlet and outlet (ideal for N 3/3-way valve); 5. Strengthened inflow controller; 8. Pre-selectable;
(10) Function symbols for valve core: L, M, F, H, J, B, R, O, N;
(11) Output flow codes for 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 options: 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 variations: 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 options: 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: /2 G3/8; /3 G1/2; /4 G3/4; /5 G1;
(16) End plate descriptions: 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 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 emerged as a beacon of groundbreaking innovation and unparalleled excellence in the hydraulic industry. A prestigious member of the China Baoan Group (stock code: 000009), we proudly stand as a national high-tech enterprise. With a specialized focus on the research, development, manufacturing, and sales of premium hydraulic components, our distinguished status as a national 'specialized, refined, and innovative' small giant enterprise underscores our unwavering commitment to technological advancement and superior quality. This dedication firmly positions us as leaders 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 pride in our strategic collaborations with numerous leading domestic manufacturers, playing a crucial 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.
Customer Inquiry:1. What is the lead time for your products?
Response:The lead time for production is generally around one month following receipt of payment. This period allows us to engage in meticulous preparation and stringent quality control, ensuring that the final products are delivered flawlessly and meet the highest standards of excellence.
Customer Inquiry:2. Do you have a minimum order quantity (MOQ) for LED light orders?
Response: We offer an exceptionally low MOQ, allowing you to order even a single piece for sample checking. This provides ultimate flexibility, enabling you to meet your specific project needs with ease.
Customer Inquiry:3. What is the process to place an order for LED lights?
Response: Begin by informing us of your detailed requirements or application. Next, we will provide a customized quotation based on your needs or our expert recommendations. Once you confirm the design drawings,drawings,and place a deposit, the order becomes formalized. We then arrange production, ensuring every specification is met to perfection, delivering a seamless and tailored solution.
Customer Inquiry:4. Can I have my logo printed on the product?
Response: Absolutely. Inform us formally before production begins and confirm the design based on the sample provided. This ensures your branding is represented with precision and high quality, enhancing your product's appeal.
){kind=link}