Introducing our groundbreaking HLPSL and HLPSV load-sensitive proportional multi-way directional spool valves. These revolutionary engineering marvels integrate pressure, flow, and directional control into a single, 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 crafted 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. Furthermore, 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. While 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 Enhancing Circulating Pressure (~14 bar, HLPSL);
(4)Pilot Oil Circuit Pressure Options: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, pressurizes pump when powered, unloads pump when unpowered; D - normally closed magnetic ball valve, unloads pump when powered, pressurizes when unpowered; D./F. . , with Pressure Limiting Valve, serves as secondary pressure (F50) with indicated pressure value;
(6)Tool Adjustable, Pressure Limiting Valve in Connection Block: Sets available at 63, 120, 210, 280, 315, 350, 400 bar; /NF: without pressure limiting valve (HLPSV only);
(7)Product Series: -2 series;-3 3 series; -5 5 series;
(8)Thread size of directional spool valve ports A & B:2-GAvailable sizes: 3/8, 3-G1/2, 4-G3/4, 5-G1. 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) Function symbols of valve core: L, M, F, H, J, B, R, O, N.
(11) Output flow code for ports A & B: Select from maximum output flows of 3, 6, 10, 16, 25, 40, 63, 80, 120, 160, 210 (L/min).
(12) Secondary pressure limitation options: N - No pressure limiting protection; C - Limit pressure of ports A & B simultaneously; A---B--- - Limit pressure of 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 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 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 end plate, external discharge of pilot oil, connecting oil return control port T externally; E2 - Similar to E1, external discharge of pilot oil with additional port Y; E3 - External discharge of pilot oil with a 2-position 3-way magnetic ball valve; in power supply scenarios, system pressure rises to 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 cable length options: 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 been a beacon of groundbreaking innovation and unmatched excellence in the hydraulic industry. As a prestigious subsidiary of the renowned China Baoan Group (stock code: 000009), we proudly stand as a distinguished national high-tech enterprise. Specializing in the research, development, manufacturing, and sales of top-tier hydraulic components, our esteemed status as a national 'specialized, refined, and innovative' small giant enterprise underscores our unwavering commitment to technological advancement and superior quality. This relentless dedication positions us as vanguards in our field.
Our flagship product, the load-sensitive proportional valve, represents the pinnacle of advanced hydraulic system control. Expertly crafted 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 immense pride in our strategic collaborations with numerous leading domestic manufacturers, playing a pivotal 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:The typical lead time for production is approximately one month upon receipt of payment. This period allows us to meticulously prepare and implement stringent quality control measures to guarantee stellar results. Our commitment ensures your products are delivered flawlessly.
Question:2. Do you have any MOQ limit for LED light orders?
Answer: We offer an exceptionally low minimum order quantity, allowing you to order even a single piece for sample checking. This flexibility caters specifically to your unique project needs, ensuring you have the ultimate freedom to test and refine.
Question:3. How to proceed with an order for LED lights?
Answer: First, communicate your detailed requirements or intended application. Next, we will provide a tailored quote based on your specifications or our expert recommendations. Once you confirm the drawings,drawings,and place a deposit to formalize the order, we will commence production. We ensure every specification is met to perfection, delivering a seamless and customized solution.
Question:4. Is it OK to print my logo on the product?
Answer: Absolutely, it is possible. Please formally inform us before production begins and confirm the design based on the sample we provide. This ensures your branding is represented with impeccable precision and quality.
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