Introducing our groundbreaking HLPSL and HLPSV load-sensitive proportional multi-way directional spool valves. These revolutionary engineering marvels seamlessly integrate pressure, flow, and directional control into a singular, harmonious unit, guaranteeing unmatched performance and reliability. Typically composed of three essential functional modules-connecting blocks, directional valves, and end plates-these valves are meticulously designed for incorporation into high-end hydraulic systems, pivotal in top-tier engineering machinery. They precisely govern the movement direction and speed of hydraulic cylinders, motors, and other actuators, delivering unparalleled precision and control. Key highlights include a compact structure, superior energy efficiency, and the capability for stepless speed control. Additionally, they allow multiple actuators to operate simultaneously under varying loads, providing unrivaled performance and versatility for any application.
The HLPSL valves are expertly tailored for constant displacement pump systems, ensuring steadfast and reliable operation. Conversely, the HLPSV valves are masterfully engineered for variable pump systems. Although HLPSV valves may exhibit a slightly slower response time, they excel in delivering exceptional energy-saving performance, making them the ultimate choice for applications where efficiency is paramount. With their cutting-edge engineering and energy-efficient design, HLPSV valves emerge as the premier solution for advanced hydraulic control requirements.
| 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)Additional Component Details:
C,Standard Type;
G,Throttle Valve (Applicable Exclusively to HLPSL);
H,Fixed Differential Overflow Valve Enhancing Circulating Pressure (approximately 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 under power, unloads on power failure); D, normally closed magnetic ball valve (unloads under power, pressurized on power failure);../F. Pressure Limiting Valve as secondary pressure (F50) with specified pressure value indicated;
(6)Tool Adjustable Pressure Limiting Valve in the Connection Block: Adjustable to pressure settings such as 63, 120, 210, 280, 315, 350, 400 bar; /NF: without pressure limiting valve (HLPSV only);
(7)Product Series: -2 series;;-3 series; -5 series;
(8)Exquisite Threading Options for Directional Spool Valve Ports A & B: 2-G3/8; 3-G1/2; 4-G3/4; 5-G1; A, includes an ancillary block or an intermediate transition block ZPL 5S(V)/H for a robust hydraulic control shut-off valve experience;
(9)Versatile Directional Valve Block Inflow Controller Options: 1, without inflow controller; 2, our standard inflow controller; 4, efficient 3-way flow controllers for both inlet and outlet, perfect for N 3/3-way valve configurations; 5, fortified inflow controller for demanding applications; 8, pre-selectable for customized control;
(10) Valve Core Function Symbols Available: L, M, F, H, J, B, R, O, N;
(11) Port A & B Output Flow Codes: Select from a range 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 Options: N, opt for no pressure limiting protection; C, enforce simultaneous pressure limits on actuator ports A & B; A---B---, precisely limit pressures for actuator ports A & B individually, unit (bar);
(13) Function ON/OFF and Pressure Outlet Choices: 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) Diverse Operation Manner Selections: A(1,2), manual operation featuring a long handle (1=without handle, 2=with short handle); E, electric proportional control for precision; EA(1,2), combining electric proportional control with manual operation (1=without handle, 2=with short handle); D, electric switching value control; DA(1,2), blending electric switching value control with manual operation (1=without handle, 2=with short handle); M, manual friction positioning with a long handle for stability; H, pure hydraulic control with two pilot oil ports aligned with oil ports A and B; F, advanced pure hydraulic control with two pilot oil ports perpendicular to oil ports A and B oriented outward;
(15) Ancillary Block Dimensions: /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 Variations: E1, standard end plate offering external discharge of pilot oil, facilitating connection of oil return control port T externally; E2, akin to E1 with external discharge, enhanced by additional attachment of port Y; E3, featuring external discharge of pilot oil, outfitted with a 2-position 3-way magnetic ball valve; when powered, the system pressure escalates to the safety valve pressure;
E4, similar to E1, with internal discharge of pilot oil, offering the option to seal port T; E5, comparable to E2 with internal discharge, port T also sealable; E6, like E3 with internal discharge capabilities, sealing port T as needed;
(17) Control Voltage and Anti-Explosion Cable Length Options: G12-12VDC;G24-24VDC; G24Ex-3m-24VDC; G12Ex-3m-12VDC; G24MA-3m-24VDC; G12MA-3m-12VDC; this anti-explosion type offers flexible guide line lengths of 3m, 5m, 10m, and beyond for adaptable usage.
Since our visionary inception in 2009, Jiangsu KM Hydraulic Control System Co., Ltd. has rapidly ascended as a beacon of groundbreaking innovation and unmatched excellence within the hydraulic industry. As a prestigious member of the esteemed China Baoan Group (stock code: 000009), we are duly recognized as a national high-tech enterprise. Our expertise is showcased through our exceptional research, development, manufacturing, and sales of premium hydraulic components. We proudly hold the prestigious title of a national 'specialized, refined, and innovative' small giant enterprise, underscoring our relentless dedication to technological advancement and superior quality. This dedication uniquely positions us as a leader within our field.
Our flagship product, the load-sensitive proportional valve, epitomizes the pinnacle of advanced hydraulic system control. This meticulously engineered component is tailored for construction machinery and heavy-duty equipment, proving indispensable in high-stakes applications like emergency rescue operations, tunnel engineering, mining, and municipal service vehicles. Our reputation for excellence is bolstered by strategic collaborations with numerous leading domestic manufacturers, playing a pivotal role in localizing core hydraulic components for high-end mechanical equipment. Guided 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 is clear: to ascend as a globally trusted supplier of premier hydraulic components, setting new standards of excellence worldwide.
Question:1. What about the lead time?
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.
Question:2. Do you have any MOQ limit for LED light orders?
Answer: We offer an exceptionally low minimum order quantity. Even a single piece can be ordered for sample checking to meet your specific needs, providing ultimate flexibility for your projects.
Question:3. How to proceed with an order for LED lights?
Answer: First, inform us of your detailed requirements or application. Second, we will provide a customized quote based on your needs or our expert recommendations. Third, you confirm thedrawings,and place a deposit to formalize the order. Finally, we will arrange production, ensuring that every specification is met to perfection, delivering a seamless and tailored solution.
Question:4. Is it OK to print my logo on the product?
Answer: Absolutely, it is possible. Please inform us formally before production begins, and confirm the design based on the sample we provide. This ensures your branding is perfectly represented with precision and quality.
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