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. Additionally, 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)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 the Circulating Pressure (about 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, in case of power supply, the pump is pressurized; in case of power failure, the pump carries out unloading; D: normally closed magnetic ball valve, in case of power supply, the pump carries out unloading; in case of power failure, 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: -3 3 Series; -5 5 Series;
(8)Directional Spool Valve Port Thread Sizes (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 Controllers: 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: 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 Options: 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 Options: 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 Options: 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 Anti-Explosion Type Cable Length: G12-12VDC;G24-24VDC; G24Ex-3m-24VDC; G12Ex-3m-12VDC; G24MA-3m-24VDC; G12bb621436
Since our inception in 2009, Jiangsu KM Hydraulic Control System Co., Ltd. has emerged as a beacon of groundbreaking innovation and unparalleled excellence in the hydraulic industry. As a prestigious member of the China Baoan Group (stock code: 000009), we proudly stand as a national high-tech enterprise. Specializing in the research, development, manufacturing, and sales of premium hydraulic components, our distinguished status as a national 'specialized, refined, and innovative' small giant enterprise underscores our unwavering commitment to technological advancement and superior quality. This dedication positions us prominently as leaders in our field.
Our flagship product, the load-sensitive proportional valve, epitomizes the pinnacle of advanced hydraulic system control. Expertly engineered for construction machinery and heavy-duty equipment, this versatile and adaptable component is indispensable in high-stakes applications such as emergency rescue operations, tunnel engineering, mining, and municipal service vehicles. We take pride in our strategic collaborations with numerous leading domestic manufacturers, playing a crucial 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 are resolute in our commitment to delivering exceptional products, services, and solutions. Our mission is to ascend as a globally trusted supplier of premier hydraulic components, setting new benchmarks of excellence worldwide.
Question:1. What about the lead time?
Answer:Our standard lead time for production is generally one month following receipt of payment. This period ensures that we can meticulously prepare and implement stringent quality control measures. Consequently, your products will be delivered with impeccable precision and excellence.
Question:2. Do you have any MOQ limit for LED light orders?
Answer: Our minimum order quantity is exceptionally accommodating, allowing you to place an order for as few as one piece to conduct sample checking. This ultimate flexibility ensures that your specific project needs are met with ease.
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Answer: Begin by providing us with your detailed requirements or intended application. Subsequently, we will craft a tailored quote, leveraging either your specifications or our expert insights. Upon confirming the drawings,drawings,and placing a deposit, the order is formalized. We will then orchestrate production, ensuring each specification is precisely met, delivering a seamless and bespoke solution.
Question:4. Is it OK to print my logo on the product?
Answer: Absolutely! Please formally notify us before production begins and confirm the design based on the sample provided. This process ensures that your branding is meticulously represented with the utmost quality and precision.
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