Presenting the cutting-edge HLPSL and HLPSV load-sensitive proportional multi-way directional spool valves. These state-of-the-art engineering masterpieces offer an unparalleled combination of pressure, flow, and direction control in a single, flawlessly integrated unit. Designed to ensure supreme performance and dependability, these valves are typically built from three fundamental modules: connecting blocks, directional valves, and end plates. Specifically crafted for hydraulic systems used in elite engineering machinery, they masterfully regulate the movement direction and speed of hydraulic cylinders, motors, and other actuators, ensuring unmatched precision and control. Highlighted features include their compact structure, remarkable energy efficiency, and capability for stepless speed control. Additionally, these valves enable multiple actuators to function harmoniously under varying loads, providing extraordinary performance and adaptability for any application.
The HLPSL valves are meticulously designed for constant displacement pump systems, guaranteeing reliable and consistent operation. In contrast, the HLPSV valves are expertly crafted for variable pump systems. Although HLPSV valves may exhibit a marginally slower response time, they excel in offering exceptional energy-saving performance, making them the ideal choice for applications where efficiency is critical. With their sophisticated engineering and energy-efficient design, HLPSV valves emerge as the premier solution for advanced hydraulic control needs, ensuring top-tier performance and unparalleled energy conservation.
| 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)Basic Code of Connection Block
HLPSL: Constant Displacement Pump;
HLPSV: Variable Displacement Pump;
(2)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:
C,Standard Type;
G,Throttle Valve (only for HLPSL);
H,Fixed Differential Overflow Valve (Improves Circulating Pressure, ~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 (When Powered: Pump Pressurized; When Power Fails: Pump Unloads); D, Normally Closed Magnetic Ball Valve (When Powered: Pump Unloads; When Power Fails: Pump Pressurized); D../F. . , With Pressure Limiting Valve, It Can Serve as Secondary Pressure (F50) with Pressure Value Indicated;
(6)Tool Adjustable Pressure Limiting Valve in the Connection Block: Pressure Limiting Valve Sets Including 63, 120, 210, 280, 315, 350, 400 bar; /NF: Without Pressure Limiting Valve (Only for HLPSV);
(7)Product Series: -2 Series;-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: 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) Function symbol of valve core: L, M, F, H, J, B, R, O, N;
(11) Output flow code of ports A & B: Maximum output flow of ports A & B (typically select 3, 6, 10, 16, 25, 40, 63, 80, 120, 160, 210 (L/min);
(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) Operation manner: 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: /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, 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; G12MA-3m-12VDC (anti-explosion type, length of guide line: 3m, 5m, 10m, etc.)
Since our inception in 2009, Jiangsu KM Hydraulic Control System Co., Ltd. has stood as a beacon of innovation and excellence within 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 the pinnacle of advanced hydraulic system control, specifically engineered for construction machinery and heavy-duty equipment. This versatile and adaptable component is indispensable in critical applications such as emergency rescue operations, tunnel engineering, mining, and municipal service vehicles. We take immense pride in our collaborations with numerous prominent 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 unwavering in our dedication to delivering exceptional products, services, and solutions. Our mission is to ascend as a globally trusted supplier of premier hydraulic components.
Customer Inquiry:1. What about the lead time?
Expert Response:Our standard lead time for production is approximately one month after receiving payment. This timeframe allows us to meticulously prepare and uphold our strict quality control standards.
Customer Inquiry:2. Do you have any MOQ limit for LED light orders?
Expert Response: We accommodate a very low minimum order quantity, even offering the flexibility of a single piece for sample evaluation, ensuring we meet your specific needs.
Customer Inquiry:3. How to proceed with an order for LED lights?
Expert Response: Initially, inform us of your specific requirements or application needs. Next, we will provide a customized quote tailored to your details or recommend expert suggestions. After you review and confirm thedrawings,and place a deposit to formalize the order, we will promptly arrange production, ensuring all your specifications are meticulously met.
Customer Inquiry:4. Is it OK to print my logo on the product?
Expert Response: Absolutely, custom logo printing is available. Please formally inform us before production and approve the design based on the sample we provide, ensuring flawless representation of your brand.
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