Presenting the revolutionary HLPSL and HLPSV load-sensitive proportional multi-way directional spool valves. These engineering masterpieces seamlessly blend pressure, flow, and direction control into a unified system, ensuring unmatched performance and dependability. Crafted from three pivotal modules-connecting blocks, directional valves, and end plates-these valves are meticulously tailored for hydraulic systems in top-tier engineering machinery. They masterfully regulate the movement and speed of hydraulic cylinders, motors, and other actuators with precision and finesse. Key features include a space-efficient design, outstanding energy efficiency, and the ability for stepless speed control. Additionally, they enable multiple actuators to function synergistically under various loads, offering unparalleled performance and adaptability across a range of applications.
The HLPSL valves are precision-engineered for constant displacement pump systems, guaranteeing steadfast and dependable operation. Conversely, the HLPSV valves are adeptly designed for variable pump systems. While HLPSV valves might show a marginally slower response, they excel in delivering exceptional energy-saving capabilities, making them the ideal choice for efficiency-critical applications. With cutting-edge engineering and an energy-efficient architecture, HLPSV valves stand out as the ultimate solution for advanced hydraulic control demands.
| 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 Configurations
HLPSL: Constant Displacement Pump System;
HLPSV: Variable Displacement Pump System;
(2) Port Specifications for the Connection Block:
2-G3/8;
3-G1/2;
4-G3/4;
5, 55-G1;
6-G1 1/4;
(3)Additional Components and Options:
C,Standard Type Configuration;
G,Throttle Valve (Exclusive for HLPSL Models);
H,Fixed Differential Overflow Valve for Enhanced Circulating Pressure (Approx. 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 (Pressurized when powered, unloads when power fails); D - Normally Closed Magnetic Ball Valve (Unloads when powered, pressurized when power fails);../F - With Pressure Limiting Valve, Can Serve as Secondary Pressure (F50) with Pressure Value Indicated;
(6)Tool-Adjustable, Pressure Limiting Valve in the Connection Block: Pressure Settings such as 63, 120, 210, 280, 315, 350, 400 Bar; /NF: Without Pressure Limiting Valve (Only for 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, enhanced 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 (commonly available options: 3, 6, 10, 16, 25, 40, 63, 80, 120, 160, 210 (L/min);
(12) Secondary pressure limitation: N, without pressure limiting protection; C, simultaneous pressure limitation of actuator ports A & B; A---B---, individual pressure limitation for actuator ports A & B (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 with long handle (1=without handle, 2=with short handle); E, electric proportional control; EA(1,2), electric proportional control with manual (1=without handle, 2=with short handle); D, electric switching value control; DA(1,2), electric switching value control with manual (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 perpendicular to oil ports A and B, respectively outward);
(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, with additional external discharge port Y; E3, external discharge of pilot oil with a 2-position 3-way magnetic ball valve, in power supply scenarios, system pressure reaches safety valve level;
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; G122aebd9a5
Since our inception in 2009, Jiangsu KM Hydraulic Control System Co., Ltd. has emerged as a luminary of innovation and excellence in the hydraulic industry. As a proud member of the prestigious China Baoan Group (stock code: 000009) and honored as a national high-tech enterprise, we specialize in the research, development, manufacturing, and sales of top-tier hydraulic components. Our accolades include being named a national 'specialized, refined, and innovative' small giant enterprise, accentuating our steadfast commitment to technological advancement and unmatched quality.
Our flagship product, the load-sensitive proportional valve, represents the zenith of advanced hydraulic system control, meticulously designed for construction machinery and heavy-duty equipment. This indispensable and versatile component is essential in vital applications such as emergency rescue operations, tunnel engineering, mining, and municipal service vehicles. We are exceptionally proud of our partnerships with numerous leading domestic manufacturers, playing a pivotal role in 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 dedicated to delivering superior products, services, and solutions. Our mission is to ascend as a globally trusted supplier of premier hydraulic components.
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