Introducing the state-of-the-art HLPSL and HLPSV load-sensitive proportional multi-way directional spool valves. These engineering marvels seamlessly integrate pressure, flow, and direction control into one cohesive unit, ensuring peak performance and unparalleled reliability. Comprising three essential functional modules-connecting blocks, directional valves, and end plates-these valves are meticulously crafted for elite hydraulic systems in top-tier engineering machinery. Expertly managing the movement direction and speed of hydraulic cylinders, motors, and other actuators, they guarantee precision and control. Key features include a compact structure, exceptional energy efficiency, and the capability for stepless speed control. Moreover, they enable multiple actuators to operate in unison under varying loads, delivering unmatched performance and versatility for a wide range of applications.
The HLPSL valves are meticulously designed for constant displacement pump systems, ensuring consistent and reliable operation. Conversely, the HLPSV valves are expertly engineered for variable pump systems. Although HLPSV valves may exhibit a slightly slower response time, they excel in delivering superior energy-saving performance. This makes 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, providing unparalleled precision and sustainability.
| 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) Valve Core Function Symbols: 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 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 Options: 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 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 emerged as a beacon of innovation and excellence in the dynamic hydraulic industry. Proudly affiliated with the prestigious China Baoan Group (stock code: 000009) and recognized as a national high-tech enterprise, we specialize in the research, development, manufacturing, and sales of superior hydraulic components. Our national recognition as a 'specialized, refined, and innovative' small giant enterprise underscores our steadfast commitment to technological progression and unmatched quality.
Our flagship product, the load-sensitive proportional valve, stands as the zenith of advanced hydraulic system control, meticulously engineered for construction machinery and heavy-duty equipment. This versatile, adaptable component is vital in critical applications such as emergency rescue operations, tunnel engineering, mining, and municipal service vehicles. We take immense pride in our strategic partnerships with numerous leading domestic manufacturers, significantly contributing to the localization of core hydraulic components for high-end mechanical equipment. Driven by our core philosophy of 'serving customers with technology, impressing customers with our attitude, and retaining customers with quality,' we remain unwavering in our dedication to delivering exceptional products, services, and solutions. Our mission is to ascend as a globally trusted supplier of premier hydraulic components.
Customer Inquiry:1. What is the expected lead time for your products?
Expert Response:Our typical lead time for production is around one month post-payment. This timeframe ensures comprehensive preparation and rigorous quality control, guaranteeing top-notch products.
Customer Inquiry:2. Is there a minimum order quantity (MOQ) for LED light purchases?
Expert Response: We accommodate all order sizes with an exceptionally low minimum order quantity. Even single-piece sample checks are available to meet your specific needs.
Customer Inquiry:3. What are the steps to place an order for LED lights?
Expert Response: Initially, communicate your specific requirements or intended application to us. Subsequently, we will provide a customized quote or expert recommendations. Once you confirm thedesign drawings,and place a deposit to formalize the order, we will proceed with production, ensuring all your specifications are met with precision.
Customer Inquiry:4. Can my logo be printed on the products?
Expert Response: Certainly, your logo can be printed on the products. Please officially communicate your branding requirements before production begins and confirm the design based on the sample we provide. This ensures flawless representation of your brand.
){kind=link}