Introducing the cutting-edge HLPSL and HLPSV load-sensitive proportional multi-way directional spool valves. These engineering masterpieces seamlessly combine pressure, flow, and direction control into one integrated unit, ensuring outstanding performance and reliability. Comprising three critical functional modules-connecting blocks, directional valves, and end plates-these valves are meticulously crafted for the hydraulic systems in top-tier engineering machinery. They efficiently manage the movement direction and speed of hydraulic cylinders, motors, and other actuators, guaranteeing precision and control. Highlighted features include a compact structure, extraordinary energy efficiency, and the ability for stepless speed control. Furthermore, they enable multiple actuators to operate concurrently under varying loads, providing unmatched performance and versatility across a wide range of applications.
The HLPSL valves are meticulously designed for constant displacement pump systems, ensuring consistent and reliable operation. Conversely, 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, establishing them as 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 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)The Fundamental Code of the Connection Block
HLPSL: Reliable Constant Displacement Pump;
HLPSV: Efficient Variable Displacement Pump;
(2) Port P & R Specifications for the Connection Block:
2-G3/8;
3-G1/2;
4-G3/4;
5, 55-G1;
6-G1 1/4;
(3)Supplementary Component Options:
C,Standard Type;
G,Precision Throttle Valve (Exclusive for HLPSL);
H,Fixed Differential Overflow Valve for Enhanced Circulating Pressure (Approx. 14 Bar, HLPSL);
(4)Pilot Oil Circuit Pressure Control: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 Optimized System Unloading: C: Without Magnetic Ball Valve; F: Normally Open Magnetic Ball Valve (Pressure on Power, Unloads on Failure); D: Normally Closed Magnetic Ball Valve (Unloads on Power, Pressurizes on Failure); D../F: With Pressure Limiting Valve, Serving as Secondary Pressure (F50) with Specified Pressure Value;
(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 (Exclusively for HLPSV);
(7)Product Line Series: -2 Series;Explore our versatile series options: -3 3 series; -5 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, 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;
(10) Diverse function symbols for valve cores: L, M, F, H, J, B, R, O, N;
(11) Output flow code of ports A & B: Choose from maximum output flows (L/min): 3, 6, 10, 16, 25, 40, 63, 80, 120, 160, 210;
(12) Secondary pressure limitation: 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: 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) Various operation manners: 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 options: /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 configurations: E1, standard end plate, external discharge of pilot oil, connecting oil return control port T externally; E2, similar to E1, external discharge of pilot oil, port Y is additionally attached; E3, external discharge of pilot oil, a 2-position 3-way magnetic ball valve is mounted; in power supply scenarios, the system pressure rises to the safety valve pressure;
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 the 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 charted a course of relentless innovation and unparalleled excellence within 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 excel in the research, development, manufacturing, and sales of premier hydraulic components. Our accolades include being named a national 'specialized, refined, and innovative' small giant enterprise, underscoring our unwavering commitment to technological advancement and superior quality.
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 indispensable and versatile component is crucial in critical applications such as emergency rescue operations, tunnel engineering, mining, and municipal service vehicles. We take immense pride in our collaborations with numerous leading domestic manufacturers, significantly contributing to 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 are steadfast in our commitment to delivering superior products, services, and solutions. Our mission is to ascend as a globally trusted supplier of premier hydraulic components.
Customer Enquiry:Q1. What is the typical lead time for your products?
Expert Answer:Our standard lead time for production is approximately one month post-payment. This timeline allows us to meticulously prepare and ensure rigorous quality control for utmost satisfaction.
Customer Enquiry:Q2. Is there a minimum order quantity (MOQ) for LED light orders?
Expert Answer: We offer a remarkably low MOQ, even accommodating single-piece orders for sample checks. This flexibility is designed to meet your unique requirements.
Customer Enquiry:Q3. What are the steps to place an order for LED lights?
Expert Answer: First, detail your specific requirements or intended application. Next, we will provide a tailored quote or our expert advice. Once you approve thedrawings,and place a deposit, your order will be formalized. We then proceed with production, strictly adhering to your specifications.
Customer Enquiry:Q4. Can I customize the product with my logo?
Expert Answer: Certainly! Just inform us formally before production begins, and confirm the design based on the sample we provide. Your branding will be impeccably incorporated.
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