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 reliability. Typically composed of three essential functional modules-connecting blocks, directional valves, and end plates-these valves are designed 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 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 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 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)Fundamental Code of Connection Block
HLPSL: Constant Displacement Pump;
HLPSV: Variable Displacement Pump;
(2) Port P & R Specifications of the Connection Block:
2-G3/8;
3-G1/2;
4-G3/4;
5, 55-G1;
6-G1 1/4;
(3)Optional Additional Component:
C,Standard Type;
G,Throttle Valve (only for HLPSL);
H,Fixed Differential Overflow Valve for Enhanced Circulating Pressure (approx. 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: pressurized with power supply, unloading with power failure; D: Normally Closed Magnetic Ball Valve: unloading with power supply, pressurized with power failure; D../F. . , with Pressure Limiting Valve for Secondary Pressure (F50), pressure value indicated;
(6)Tool-Adjustable Pressure Limiting Valve in Connection Block: Pressure setting options include 63, 120, 210, 280, 315, 350, 400 bar; /NF: Without Pressure Limiting Valve (only for HLPSV);
(7)Product Series: -2 Series;Series options available: -3 3 series; -5 5 series;
(8)Thread size options for directional spool valve ports A & B: 2-G3/8; 3-G1/2; 4-G3/4; 5-G1; Also available: 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 settings;
(10) Valve core function symbols: L, M, F, H, J, B, R, O, N;
(11) Output flow codes for ports A & B: Maximum output flow for ports A & B (options typically include 3, 6, 10, 16, 25, 40, 63, 80, 120, 160, and 210 L/min);
(12) Secondary pressure limitation settings: 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 methods: 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 port sizes: /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 with external discharge of pilot oil, connecting oil return control port T externally; E2, similar to E1 with external discharge of pilot oil, port Y is additionally attached; E3, external discharge of pilot oil with a 2-position 3-way magnetic ball valve; in power supply scenarios, the system pressure rises to the safety valve pressure;
E4, similar to E1 with internal discharge of pilot oil, port T can be sealed; E5, similar to E2 with internal discharge of pilot oil, port T can be sealed; E6, similar to E3 with internal discharge of pilot oil, port T can be sealed;
(17) Control voltage and anti-explosion type cable length: G12-12VDC;G24-24VDC; G24Ex-3m-24VDC; G12Ex-3m-12VDC; G24MA-3m-24VDC; G122ec38095
Since our inception in 2009, Jiangsu KM Hydraulic Control System Co., Ltd. has emerged as a beacon of innovation and excellence in 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 unwavering commitment to technological advancement and unparalleled quality.
Our flagship product, the load-sensitive proportional valve, epitomizes cutting-edge hydraulic system control, meticulously engineered for construction machinery and heavy-duty equipment. This versatile component is indispensable in emergency rescue operations, tunnel engineering, mining applications, and municipal service vehicles. We are proud to collaborate with numerous prominent domestic manufacturers, significantly advancing 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 remain steadfast in our dedication to delivering exceptional products, services, and solutions. Our mission is to establish ourselves as a globally trusted supplier of premier hydraulic components.
Question1. What about the lead time?
Answer:The lead time for production typically takes around one month after receiving payment. This ensures meticulous attention to quality and detail.
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Answer: We offer a remarkably low minimum order quantity, allowing even a single piece for sample checking. Experience our exceptional quality with no large commitments.
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