Introducing the state-of-the-art HLPSL and HLPSV load-sensitive proportional multi-way directional spool valves. These engineering marvels seamlessly integrate pressure, flow, and direction control into one cohesive unit, guaranteeing peak performance and unwavering reliability. Composed of three essential functional modules-connecting blocks, directional valves, and end plates-these valves are meticulously designed for the hydraulic systems in elite engineering machinery. They masterfully manage the movement direction and speed of hydraulic cylinders, motors, and other actuators, ensuring unmatched precision and control. Key features include a compact structure, exceptional energy efficiency, and the capability for stepless speed control. Furthermore, they allow multiple actuators to operate harmoniously under varying loads, delivering unparalleled performance and versatility for any high-demand application.
The HLPSL valves are meticulously crafted for constant displacement pump systems, ensuring consistent and reliable operation. Conversely, the HLPSV valves are expertly engineered for variable pump systems. Although HLPSV valves may exhibit a slightly slower response time, they excel in delivering superior energy-saving performance, making them 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 needs.
| 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 Used for HLPSL);
H,Fixed Differential Overflow Valve for Improving Circulating Pressure (Approx. 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, the Pump is Pressurized; When Power Fails, the Pump Unloads; D: Normally Closed Magnetic Ball Valve, When Powered, the Pump Unloads; When Power Fails, the Pump is 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 Such as 63, 120, 210, 280, 315, 350, 400 Bar; /NF: Without Pressure Limiting Valve (Only for HLPSV);
(7)Product Series: -2 Series;Series options available: -3 3 series; -5 5 series;
(8)Thread Size for 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) Valve Core Function Symbols: L, M, F, H, J, B, R, O, N;
(11) Output Flow Code for Ports A & B: Max output flow (L/min) - select from 3, 6, 10, 16, 25, 40, 63, 80, 120, 160, 210;
(12) Secondary Pressure Limitation: N, no pressure limiting protection; C, limit pressure of actuator ports A & B simultaneously; A---B---, limit 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 with long handle (1=without handle, 2=with short handle); E, electric proportional control; EA(1,2), electric proportional and manual (1=without handle, 2=with short handle); D, electric switching control; DA(1,2), electric switching and manual (1=without handle, 2=with short handle); M, manual friction positioning with long handle; H, pure hydraulic (two pilot oil ports align with oil ports A and B); F, pure hydraulic (two pilot oil ports perpendicular to oil ports A and B and outward respectively);
(15) Ancillary Block Port Sizes: /2 G3/8; /3 G1/2; /4 G3/4; /5 G1;
(16) End Plate Options: E1, standard, external discharge of pilot oil, connect oil return control port T externally; E2, like E1 with additional port Y; E3, external discharge, 2-position 3-way magnetic ball valve mounted - system pressure rises to safety valve pressure in power supply scenarios;
E4, like E1 but with internal discharge, port T can be sealed; E5, like E2 but with internal discharge, port T can be sealed; E6, like E3 but with internal discharge, port T can be sealed;
(17) Control Voltage and Cable Length for Anti-Explosion Type: 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 rapidly risen as a beacon of innovation and excellence in the hydraulic industry. As an esteemed member of the prestigious China Baoan Group (stock code: 000009) and proudly recognized as a national high-tech enterprise, we excel in the research, development, manufacturing, and sales of premium hydraulic components. Our accolades include being designated a national 'specialized, refined, and innovative' small giant enterprise, underscoring our unwavering commitment to technological progression and unparalleled 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 essential 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, playing a key 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 are committed 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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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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