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. What's more, 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 equipped with a pressure reducing valve (20 bar); 2 featuring a 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)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, lacking inflow controller; 2, equipped with a standard inflow controller; 4, featuring advanced 3-way flow controllers for both inlet and outlet, perfect for N 3/3-way valve; 5, reinforced inflow controller for robust performance; 8, pre-selectable for custom applications;
(10) Selectable function symbols for valve core: L, M, F, H, J, B, R, O, N;
(11) Output flow code for 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 options: N, no protective pressure limiting; C, simultaneous pressure limitation for actuator ports A & B; A---B---, independent pressure limitation for each actuator port A & B, measured in unit (bar);
(13) Function ON/OFF and pressure outlet capabilities: N, lacks function ON/OFF and pressure outlet; X, C-type pressure limitation; S/S1, AB-type pressure limitation; A, electrical ON/OFF functionality on side A; B, electrical ON/OFF functionality on side B;
(14) Options for operation manner: A(1,2), manual operation featuring a long handle (1=without handle, 2=with short handle); E, electric proportional control; EA(1,2), combined 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 an extended handle; H, purely hydraulic control aligning two pilot oil ports with oil ports A and B; F, purely hydraulic control with two pilot oil ports either perpendicular or outward to oil ports A and B;
(15) Ancillary block port size options: /2 Ancillary block with port size G3/8; /3 Ancillary block with port size G1/2; /4 Ancillary block with port size G3/4; /5 Ancillary block with port size G1;
(16) End plate variations: E1, standard end plate with external pilot oil discharge, connects oil return control port T externally; E2, akin to E1, featuring external pilot oil discharge, with an additional port Y; E3, external pilot oil discharge, equipped with a 2-position 3-way magnetic ball valve; in power supply scenarios, system pressure escalates to the safety valve pressure;
E4, resembling E1, with internal pilot oil discharge, allowing port T sealing; E5, akin to E2, with internal pilot oil discharge, allowing port T sealing; E6, similar to E3, with internal pilot oil discharge, allowing port T sealing;
(17) Control voltage and anti-explosion type cable length options: G12-12VDC;G24-24VDC; G24Ex-3m-24VDC; G12Ex-3m-12VDC; G24MA-3m-24VDC; G12MA-3m-12VDC (anti-explosion type, guide line lengths available: 3m, 5m, 10m, and beyond)
Since our founding in 2009, Jiangsu KM Hydraulic Control System Co., Ltd. has swiftly risen as a beacon of pioneering innovation and unmatched excellence within the hydraulic industry. As a distinguished member of the China Baoan Group (stock code: 000009), we are exceptionally proud to be recognized as a national high-tech enterprise. Our expertise shines in the research, development, manufacturing, and sales of top-tier hydraulic components. Our prestigious recognition as a national 'specialized, refined, and innovative' small giant enterprise underscores our unwavering commitment to technological advancement and superior quality, firmly establishing us as an industry leader.
Our flagship product, the load-sensitive proportional valve, represents the pinnacle of sophisticated hydraulic system control. Masterfully engineered for construction machinery and heavy-duty equipment, this versatile and adaptable component is crucial in high-stakes applications, including emergency rescue operations, tunnel engineering, mining, and municipal service vehicles. We pride ourselves on strategic alliances with numerous leading domestic manufacturers, playing an instrumental 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 unwavering in our commitment to providing exceptional products, services, and solutions. Our mission is to emerge as a globally trusted supplier of premier hydraulic components, steadfast in setting new benchmarks 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.
){kind=link}