Introducing the groundbreaking HLPSL and HLPSV load-sensitive proportional multi-way directional spool valves by Jiangsu KM Hydraulic Control System Co., Ltd. These engineering masterpieces seamlessly integrate pressure, flow, and direction control into a single, cohesive unit, ensuring peak performance and unyielding reliability. Comprising three fundamental functional modules-connecting blocks, directional valves, and end plates-these valves are meticulously designed for hydraulic systems in top-tier engineering machinery. They expertly manage the movement direction and speed of hydraulic cylinders, motors, and other actuators, guaranteeing precision and control. Notable features include a compact structure, exceptional energy efficiency, and the capability for stepless speed control. Furthermore, they enable multiple actuators to operate in unison under varying loads, delivering unmatched performance and versatility for any application.
The HLPSL valves are meticulously tailored for constant displacement pump systems, ensuring consistent and reliable operation. In contrast, the HLPSV valves are masterfully engineered for variable pump systems. While HLPSV valves may exhibit a slightly slower response time, they excel in delivering unparalleled energy-saving performance, making them the optimal choice for applications where efficiency is paramount. With their advanced engineering and energy-efficient design, HLPSV valves stand out as the premier solution for sophisticated hydraulic control needs.
| 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 improving the circulating pressure (about 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, in case of power supply, the pump is pressurized; in case of power failure, the pump carries out unloading; D: normally closed magnetic ball valve, in case of power supply, the pump carries out unloading; in case of power failure, the pump is pressurized; D../F. . , with pressure limiting valve, it can serve as secondary pressure (F50) with pressure value indicated;
(6)Tool adjustable, pressure limiting valve in the connection block: Pressure limiting valve sets such as 63, 120, 210, 280, 315, 350, 400 bar; /NF: without pressure limiting valve (only for HLPSV);
(7)Product series: -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. 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 options: L, M, F, H, J, B, R, O, N;
(11) Output flow code of ports A & B: Maximum output flow of ports A & B typically selectable from 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 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 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 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, connecting oil return control port T externally; E2. Similar to E1, with port Y 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, with internal discharge of pilot oil, where port T can be sealed; E5. Similar to E2, with internal discharge of pilot oil, where port T can be sealed; E6. Similar to E3, with internal discharge of pilot oil, where port T can be sealed;
(17) Control voltage and the length of anti-explosion type cable options: G12. 12VDC;G24-24VDC; G24Ex-3m-24VDC; G12Ex-3m-12VDC; G24MA-3m-24VDC; G12MA-3m-12VDC (anti-explosion type, length of guide line options: 3m, 5m, 10m, etc.)
Since our establishment in 2009, Jiangsu KM Hydraulic Control System Co., Ltd. has stood as a paragon of innovation and excellence in the hydraulic industry. As a distinguished member of the China Baoan Group (stock code: 000009) and a recognized national high-tech enterprise, we excel in the research, development, manufacturing, and sales of top-tier hydraulic components. Our accolades include being designated as a national 'specialized, refined, and innovative' small giant enterprise, highlighting our unwavering dedication to technological advancement and superior quality.
Our flagship product, the load-sensitive proportional valve, represents the pinnacle of advanced hydraulic system control and is meticulously engineered for construction machinery and heavy-duty equipment. This versatile component is crucial for emergency rescue operations, tunnel engineering, mining applications, and municipal service vehicles. Our esteemed collaborations with numerous prominent domestic manufacturers underscore our significant role in the localization of core hydraulic components for high-end mechanical equipment. Driven by our core philosophy-'serving customers with technology, impressing customers with our attitude, and retaining customers with quality'-we remain steadfast in our commitment to delivering exceptional products, services, and solutions. Our mission is to become a globally trusted supplier of premier hydraulic components.
Question1. What about the lead time?
Answer:Our production lead time is typically one month from the date we receive your payment, ensuring timely and reliable delivery.
Question2. Do you have any MOQ limit for LED light orders?
Answer: We proudly offer a very low minimum order quantity, making it possible for you to even order a single piece for sample evaluation.
Question3. How to proceed with an order for LED lights?
Answer: First, provide us with your specific requirements or the intended application. Second, we will give you a quotation tailored to your needs or suggest an optimized solution. Third, confirm thedrawings and place a deposit to formalize your order. Finally, our team will initiate the production process.
Question4. Is it OK to print my logo on the product?
Answer: Absolutely! Please inform us formally before production begins and we will ensure the design is finalized based on the sample provided.
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