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 exceptional performance and reliability. Comprised of three essential functional modules-connecting blocks, directional valves, and end plates-these valves are meticulously designed for the hydraulic systems in premium engineering machinery. They expertly manage the movement direction and speed of hydraulic cylinders, motors, and other actuators, guaranteeing precision and control. Key features include a compact structure, remarkable energy efficiency, and the ability for stepless speed control. Additionally, they enable multiple actuators to operate harmoniously under varying loads, delivering unmatched performance and versatility for any application.
The HLPSL valves are meticulously engineered for constant displacement pump systems, ensuring consistent and reliable operation. Conversely, the HLPSV valves are expertly designed 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 ideal 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 for Connection Block
HLPSL: Constant Displacement Pump;
HLPSV: Variable Displacement Pump;
(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)Optional Additional Components:
C,Standard Type;
G,Throttle Valve (Exclusive to HLPSL);
H,Fixed Differential Overflow Valve for Enhanced Circulating Pressure (Approx. 14 Bar, HLPSL);
(4)Pilot Oil Circuit Pressure Options0: No 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 (When Powered, the Pump is Pressurized; When Power Fails, the Pump Unloads); D - Normally Closed Magnetic Ball Valve (When Powered, the Pump Unloads; When Power Fails, the Pump is Pressurized);../F: With Pressure Limiting Valve, Serves as Secondary Pressure (F50) with Indicated Pressure Value;
(6)Tool Adjustable Pressure Limiting Valve in the Connection Block: Sets Available in 63, 120, 210, 280, 315, 350, 400 Bar; /NF: Without Pressure Limiting Valve (Only for HLPSV);
(7)Product Series Range: -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: 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 (commonly 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 anti-explosion cable length: G12-12VDC;G24-24VDC; G24Ex-3m-24VDC; G12Ex-3m-12VDC; G24MA-3m-24VDC; G122aebd9a5
Since our grand inception in 2009, Jiangsu KM Hydraulic Control System Co., Ltd. has rapidly ascended as a beacon of innovation and excellence within the hydraulic industry. We are a distinguished member of the eminent China Baoan Group (stock code: 000009) and proudly hold the title of a national high-tech enterprise. Our expertise spans the research, development, manufacturing, and sales of premier hydraulic components. Among our many accolades, we are celebrated as a national 'specialized, refined, and innovative' small giant enterprise, underscoring our unwavering commitment to technological advancement and unparalleled quality.
Our flagship product, the load-sensitive proportional valve, stands as the pinnacle of advanced hydraulic system control. It is meticulously engineered for construction machinery and heavy-duty equipment, making it an indispensable and versatile component in critical applications such as emergency rescue operations, tunnel engineering, mining, and municipal service vehicles. We are profoundly proud of our 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 of 'serving customers with technology, impressing customers with our attitude, and retaining customers with quality,' we are steadfast in our dedication to delivering superior products, services, and solutions. Our mission is to rise as a globally trusted supplier of premier hydraulic components.
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Expert Answer:Our standard lead time for production is approximately one month post-payment. This timeline allows us to meticulously prepare and ensure rigorous quality control for utmost satisfaction.
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Expert Answer: Certainly! Just inform us formally before production begins, and confirm the design based on the sample we provide. Your branding will be impeccably incorporated.
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