Introducing the groundbreaking HLPSL and HLPSV load-sensitive proportional multi-way directional spool valves. These engineering masterpieces seamlessly blend pressure, flow, and direction control into a singular, cohesive unit, ensuring peak performance and steadfast reliability. Each valve system is composed of three fundamental functional modules-connecting blocks, directional valves, and end plates-meticulously designed for the hydraulic systems in premier engineering machinery. These advanced valves provide precise management of the movement direction and speed of hydraulic cylinders, motors, and other actuators, offering unparalleled control and precision. Key attributes include a compact structure, extraordinary energy efficiency, and stepless speed control capability. Additionally, they enable multiple actuators to operate in unison under varying loads, delivering exceptional performance and versatility for any application.
The HLPSL valves are precisely crafted for constant displacement pump systems, ensuring unwavering and reliable operation. Conversely, the HLPSV valves are expertly engineered for variable pump systems. Although HLPSV valves might exhibit a marginally slower response time, they shine in delivering superior energy-saving performance, making them the optimal choice for applications where efficiency is vital. With their cutting-edge 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)Basic Code of Connection Block Specifications
HLPSL: Constant Displacement Pump;
HLPSV: Variable Displacement Pump;
(2)Port P & R of the Connection Block Specifications:
2-G3/8;
3-G1/2;
4-G3/4;
5, 55-G1;
6-G1 1/4;
(3)Additional Component Options:
C,Standard Type;
G,Throttle Valve (Only for HLPSL);
H,Fixed Differential Overflow Valve to Enhance Circulating Pressure (Approx. 14 Bar, HLPSL);
(4)Pilot Oil Circuit Pressure Options0: 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../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
(7)Product 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: 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; G122aebd9a5
Since our inception in 2009, Jiangsu KM Hydraulic Control System Co., Ltd. has emerged as a luminary of innovation and excellence in 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 specialize in the research, development, manufacturing, and sales of top-tier hydraulic components. Our accolades include being named a national 'specialized, refined, and innovative' small giant enterprise, accentuating our steadfast commitment to technological advancement and unmatched quality.
Our flagship product, the load-sensitive proportional valve, represents the zenith of advanced hydraulic system control, meticulously designed for construction machinery and heavy-duty equipment. This indispensable and versatile component is essential in vital applications such as emergency rescue operations, tunnel engineering, mining, and municipal service vehicles. We are exceptionally proud of our partnerships with numerous leading domestic manufacturers, playing a pivotal role in the localization of core hydraulic components for high-end mechanical equipment. Driven by our core philosophy of 'serving customers with technology, impressing customers with our attitude, and retaining customers with quality,' we remain dedicated 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.
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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.
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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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