Introducing our groundbreaking HLPSL and HLPSV load-sensitive proportional multi-way directional spool valves, a beacon of innovation in hydraulic engineering. These marvels seamlessly marry pressure, flow, and directional control into a single, coherent unit, ensuring performance and reliability that is second to none. Typically crafting their structure from three cardinal functional modules-connecting blocks, directional valves, and end plates-these valves are meticulously engineered to integrate perfectly into high-end hydraulic systems. They play a pivotal role in elite engineering machinery, precisely orchestrating the movement direction and speed of hydraulic cylinders, motors, and other actuators with unrivaled precision. Key highlights include a compact structure, superior energy efficiency, and the capability for stepless speed control. Moreover, they empower multiple actuators to operate simultaneously under varying loads, providing unparalleled performance and versatility for any application.
The HLPSL valves are meticulously crafted for constant displacement pump systems, ensuring unwavering and steadfast operation. On the other hand, the HLPSV valves are masterfully designed for variable pump systems. While HLPSV valves might exhibit a marginally slower response time, their forte lies in delivering extraordinary energy-saving performance, making them the quintessential choice for applications where efficiency takes precedence. With their state-of-the-art engineering and energy-optimized design, HLPSV valves ascend as the premier solution for advanced 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 - The Essential Power Source;
HLPSV: Variable Displacement Pump - For Precision Control;
(2) Specifications for 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 Details to Enhance System Functionality:
C,Standard Type - The Reliable Choice;
G,Throttle Valve (Exclusively for HLPSL) for Optimized Flow;
H,Fixed Differential Overflow Valve Enhancing Circulating Pressure (approximately 14 bar, HLPSL) - Ensures System Stability;
(4)Pilot Oil Circuit Pressure Settings:0 - No pressure reducing valve; 1 - Pressure reducing valve at 20 bar; 2 - Pressure reducing valve at 40 bar; offering flexibility in pressure control.
(5)2/2-way Magnetic Ball Valve for System Unloading: C - without magnetic ball valve; F - normally open (pressurized under power, unloads on power failure); D - normally closed (unloads under power, pressurized on power failure); providing versatile control options.../F. Pressure Limiting Valve as a secondary pressure control (F50) with a precise pressure value indicated; ensuring operational safety and efficiency.
(6)Tool Adjustable Pressure Limiting Valve in the Connection Block: Adjustable to specific pressure settings such as 63, 120, 210, 280, 315, 350, 400 bar; /NF: absence of pressure limiting valve (HLPSV only); tailor-made for your precise requirements.
(7)Product Series: A range of series to meet diverse needs -2 series;;-3 series; -5 series; advanced solutions for varied applications.
(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, equipped with a standard inflow controller; 4, state-of-the-art 3-way flow controllers for both inlet and outlet, perfect for N 3/3-way valve systems; 5, strengthened inflow controller for enhanced performance; 8, pre-selectable for customized needs;
(10) Function symbol of valve core: L, M, F, H, J, B, R, O, N;
(11) Output flow code of ports A & B: Select from an array of maximum output flows for ports A & B: 3, 6, 10, 16, 25, 40, 63, 80, 120, 160, 210 (L/min);
(12) Secondary pressure limitation: N, no pressure limiting protection; C, comprehensive pressure limitation for actuator ports A & B; A---B---, separate pressure limitation for actuator ports A & B, unit (bar);
(13) Function ON/OFF and pressure outlet: N, system operates without function ON/OFF and pressure outlet; X C type pressure limitation; S/S1 AB type pressure limitation; A, electrical ON/OFF for side A; B, electrical ON/OFF for side B;
(14) Operation manner: A(1,2), manual operation with options for long handle (1=without handle, 2=with short handle); E, advanced electric proportional control; EA(1,2), fusion of electric proportional control with manual operation (1=without handle, 2=with short handle); D, electric switching value control; DA(1,2), a combination of electric switching value control and manual operation (1=without handle, 2=with short handle); M, manual friction positioning, equipped with a long handle; H, pure hydraulic control aligning two pilot oil ports with oil ports A and B; F, pure hydraulic control where two pilot oil ports are oriented perpendicularly and outward with respect to oil ports A and B;
(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 design featuring external discharge of pilot oil and external connection of oil return control port T; E2, mirrors E1 with added port Y for enhanced functionality; E3, external pilot oil discharge, integrates a 2-position 3-way magnetic ball valve for automatic pressure elevation to safety valve level during power supply;
E4, mirrors E1 with internal pilot oil discharge, allowing port T to be sealed; E5, similar to E2, offers internal pilot oil discharge with sealable port T; E6, comparable to E3, features internal pilot oil discharge and sealable port T;
(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, available in guide line lengths: 3m, 5m, 10m, etc.)
Since our inception in 2009, Jiangsu KM Hydraulic Control System Co., Ltd. has emerged as a beacon of groundbreaking innovation and unmatched excellence in the hydraulic industry. As a prestigious member of the China Baoan Group (stock code: 000009), we stand proud as a national high-tech enterprise. Our expertise shines in the realms of research, development, manufacturing, and sales of premium hydraulic components. The esteemed national recognition we hold as a 'specialized, refined, and innovative' small giant enterprise underscores our relentless commitment to technological advancement and superior quality, setting us apart as leaders in the field.
Our flagship product, the load-sensitive proportional valve, epitomizes the pinnacle of advanced hydraulic system control. Meticulously engineered for construction machinery and heavy-duty equipment, this component is versatile and indispensable in high-stakes applications, including emergency rescue operations, tunnel engineering, mining, and municipal service vehicles. We proudly engage in strategic collaborations with numerous leading domestic manufacturers, playing a pivotal role in localizing core hydraulic components for high-end mechanical equipment. Anchored by our core philosophy-'serving customers with technology, impressing customers with our attitude, and retaining customers with quality'-we remain steadfast in our commitment to delivering exceptional products, services, and solutions. Our mission extends to becoming a globally trusted supplier of premier hydraulic components, setting new standards of excellence worldwide.
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Answer:The lead time for production is typically one month following receipt of payment. This timeframe allows us to ensure meticulous preparation and stringent quality control for optimal results, ensuring your products are delivered flawlessly.
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