Introducing the state-of-the-art HLPSL and HLPSV load-sensitive proportional multi-way directional spool valves, exclusively designed for peak performance and reliability. These engineering marvels seamlessly integrate pressure, flow, and direction control into a single, cohesive unit. Typically composed of three essential functional modules-connecting blocks, directional valves, and end plates-these valves are precision-engineered specifically for hydraulic systems in top-tier engineering machinery. They expertly manage the movement direction and speed of hydraulic cylinders, motors, and other actuators, guaranteeing unmatched precision and control. Key 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 unparalleled performance and versatility across any application.
The HLPSL valves are meticulously tailored for constant displacement pump systems, ensuring consistent and reliable operation. In contrast, the HLPSV valves are expertly engineered for variable pump systems. While HLPSV valves may exhibit a slightly slower response time, they excel in delivering superior 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 configurations
HLPSL: Designed for constant displacement pumps;
HLPSV: Tailored for variable displacement pumps;
(2) Port P & R specifications for the connection block::
2-G3/8;
3-G1/2;
4-G3/4;
5, 55--G1;
6--G1 1/4;
(3)Additional component options::
C,standard type;
G,featuring a throttle valve (specific to HLPSL);
H,equipped with a fixed differential overflow valve to enhance circulating pressure (approximately 14 bar, for HLPSL);
(4)Pilot oil circuit pressure options:0 - without pressure reducing valve; 1 - with 20 bar pressure reducing valve; 2 - with 40 bar pressure reducing valve;
(5)2/2-way magnetic ball valve for system unloading options: C - without magnetic ball valve; F - normally open magnetic ball valve (pressurizes pump when powered, unloads when power fails); D - normally closed magnetic ball valve (unloads pump when powered, pressurizes when power fails); D../F. , includes a pressure limiting valve, can function as secondary pressure (F50) with specified pressure values;
(6)Tool adjustable, pressure limiting valves in the connection block include: 63, 120, 210, 280, 315, 350, 400 bar options; /NF: without pressure limiting valve (specific to 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: Maximum output flow of ports A & B (typically select 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 been a beacon of innovation and excellence within the hydraulic industry. As an esteemed member of the China Baoan Group (stock code: 000009), and honored as a national high-tech enterprise, we excel in the research, development, manufacturing, and sales of superior hydraulic components. Our recognition extends to being designated as a national 'specialized, refined, and innovative' small giant enterprise, underlining our commitment to technological advancement and quality.
Our flagship product, the load-sensitive proportional valve, epitomizes advanced hydraulic system control, specifically engineered for construction machinery and heavy-duty equipment. This adaptable component is indispensable in emergency rescue operations, tunnel engineering, mining applications, and municipal service vehicles. We proudly collaborate with numerous prominent domestic manufacturers, significantly contributing to the localization of core hydraulic components for high-end mechanical equipment. Guided by our core philosophy of 'serving customers with technology, impressing customers with our attitude, and retaining customers with quality,' we are unwavering in our dedication to delivering exceptional products, services, and solutions. Our mission is to become a globally trusted supplier of premier hydraulic components.
Customer Inquiry1. What about the lead time?
Response:Typically, the production lead time is one month following receipt of payment.
Customer Inquiry2. Do you have any MOQ limit for LED light orders?
Response: We offer a minimal order quantity requirement; even a single piece is available for sample evaluation.
Customer Inquiry3. How to proceed with an order for LED lights?
Response: First, inform us of your specific requirements or application. Next, we will provide a tailored quote based on your needs or our expert recommendations. Then, confirm thedrawings and place a deposit to formalize the order. Finally, we will initiate production.
Customer Inquiry4. Is it OK to print my logo on the product?
Response: Absolutely! Please inform us formally before production begins and confirm the design based on the sample we provide.
){kind=link}