Introducing our groundbreaking HLPSL and HLPSV load-sensitive proportional multi-way directional spool valves-engineering marvels that revolutionize hydraulic control. Seamlessly integrating pressure, flow, and directional management into a single, harmonious unit, these valves ensure unmatched performance and reliability. Typically composed of three essential functional modules-connecting blocks, directional valves, and end plates-these precision-crafted components are designed for inclusion in high-end hydraulic systems, essential for top-tier engineering machinery. They precisely govern movement direction and speed of hydraulic cylinders, motors, and other actuators, delivering unmatched precision and control. Key features include a compact structure, superior energy efficiency, and stepless speed control capability. Moreover, they empower multiple actuators to operate in unison under diverse load conditions, offering unrivaled performance and versatility across various applications.
The HLPSL valves are meticulously tailored for constant displacement pump systems, ensuring steadfast and dependable operation. On the other hand, the HLPSV valves are masterfully engineered for variable pump systems. While HLPSV valves may exhibit a marginally slower response time, they deliver exceptional energy-saving performance, making them the pinnacle choice for applications where efficiency reigns supreme. With cutting-edge engineering and energy-efficient design, HLPSV valves stand out as the ultimate solution for advanced 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) Essential Connection Block Codes
HLPSL: Constant Displacement Pump - The key to consistent and reliable performance. This is your foundation for seamless operations.;
HLPSV: Variable Displacement Pump - Adaptability and flexibility at its finest. Experience unparalleled control and efficiency.;
(2) Connection Block Ports P & R Specifications - Precision and reliability you can trust::
2-G3/8; Compact and efficient for streamlined operations. A perfect fit for modern demands.
3-G1/2; Robust and dependable. Engineered for excellence.;
4-G3/4; Advanced connectivity for superior control. Precision and performance in one.;
5, 55-G1; Offering a superior flow rate for high-demand applications. Ensure smooth and consistent operations.;
6-G1 1/4; Delivering unmatched performance in the field. Optimized for peak efficiency.;
(3) Additional Components and Specifications - Elevating system capabilities::
C,Standard Type - A dependable baseline for your needs. Solid and reliable functionality.;
G,Throttle Valve (For HLPSL only) - Ensuring precision control. Achieve fine-tuned modulation.;
H,Fixed Differential Overflow Valve for Enhanced Circulating Pressure (~14 bar, HLPSL) - Optimized flow management to enhance performance. Keep operations smooth and steady.;
(4) Pilot Oil Circuit Pressure Options - Customizable pressure control for various applications:0 - No pressure reducing valve; 1 - Pressure reducing valve (20 bar); 2 - Pressure reducing valve (40 bar); Tailored solutions for your specific needs. Achieve precise pressure adjustments.
(5) 2/2-way Magnetic Ball Valve for System Unloading - Streamlined efficiency and control:C - No 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; Customized to meet the highest safety standards.D/F - With pressure limiting valve for secondary pressure (F50) with specified pressure value; Advanced safety measures for secure operations. Elevate your system to new levels of safety.
(6) Tool Adjustable, Pressure Limiting Valve in Connection Block: Dive into superior pressure management with adjustable settings tailored to your needs, offering a range of choices including 63, 120, 210, 280, 315, 350, 400 bar. For specialized applications, HLPSV-exclusive options like /NF offer flexibility without a pressure limiting valve. This ensures unparalleled pressure accuracy across diverse operational scenarios.
(7) Product Series Classification - Identifying excellence: Discover a series crafted for unparalleled performance, tailored for every application to ensure precision and reliability:;-2 2 Series; -3 3 Series; -5 5 Series; Each series is meticulously designed to cater to distinct demands, ensuring a perfect fit and functionality.
(8)Thread size of directional spool valve ports A & B: Choose from robust thread sizes like 2-G3/8, 3-G1/2, 4-G3/4, 5-G1. Complemented by an ancillary block or intermediate transition block ZPL 5S(V)/H, it provides seamless integration with hydraulic control shut-off valves.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: Experience versatility with various inflow control settings: 1, without inflow controller; 2, standard inflow controller; 4, advanced 3-way flow controllers for both inlet and outlet, ideal for N 3/3-way valves; 5, enhanced inflow controller; 8, pre-selectable for tailored solutions.
(10) Valve core function symbols: L, M, F, H, J, B, R, O, N; Offering a range of core functions to meet specific operational requirements.
(11) Output flow code for ports A & B: Choose from a variety of output flows to match your operational needs, with maximum capacities of 3, 6, 10, 16, 25, 40, 63, 80, 120, 160, 210 (L/min), ensuring optimal performance.
(12) Secondary pressure limitation options: Tailor your pressure management with: N, no pressure limiting protection; C, simultaneous limitation at actuator ports A & B; A---B---, separate pressure limits for ports A & B, measured in units (bar).
(13) Function ON/OFF and pressure outlet options: Versatile options include N, without 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, empowering you with control and precision.
(14) Operation modes: Choose your ideal operation mode: A(1,2), manual operation with long handle (1=without handle, 2=with short handle); E, electric proportional control; EA(1,2), electric and manual operation; D, electric switching value control; DA(1,2), electric and manual operation; M, manual friction positioning with a long handle; H, pure hydraulic control with pilot oil ports aligned to A and B; F, pure hydraulic control with perpendicular pilot oil ports.
(15) Ancillary block port sizes: Options include /2 G3/8; /3 G1/2; /4 G3/4; /5 G1, each providing flexibility to meet specific installation requirements.
(16) End plate options: Delve into a variety of end plate designs for optimal hydraulic performance: E1, standard end plate with external pilot oil discharge; E2, similar to E1, featuring additional port Y; E3, includes a 2-position 3-way magnetic ball valve, raising system pressure to safety valve level upon power supply.
E4, akin to E1 with internal pilot oil discharge and sealable port T; E5, similar to E2 with internal discharge and sealable port T; E6, similar to E3 with internal discharge and sealable port T, ensuring a tailored fit for your hydraulic system needs.
(17) Control Voltage Specifications and Explosive-Proof 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 illuminated the hydraulic industry with groundbreaking innovation and unparalleled excellence. As a prestigious subsidiary of the esteemed China Baoan Group (stock code: 000009), we proudly stand as a distinguished national high-tech enterprise. Our expertise lies in the meticulous research, development, manufacturing, and sales of premium hydraulic components. Our esteemed designation 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 frontrunners 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 component is vital for 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 lead time for production is generally about one month once payment is received. This time frame is essential for us to engage in comprehensive preparations and apply rigorous quality control standards. We meticulously ensure that every detail is perfect, guaranteeing that your products are delivered in excellent condition and ready for use.
Question:2. Do you have any MOQ limit for LED light orders?
Answer: We proudly offer a remarkably low minimum order quantity, which allows you to order even a single piece for sample verification. This flexibility accommodates your unique requirements impeccably, facilitating an effortless initiation of your projects with unmatched convenience.
Question:3. How to proceed with an order for LED lights?
Answer: Begin by communicating your specific requirements or intended applications to us. We will provide a bespoke quotation tailored to your needs or based on our extensive expertise. Upon your approval of the drawings and a deposit payment, we will confirm the order and initiate production. Our commitment is to meet every specification accurately, ensuring a seamless and perfectly customized solution.drawings,and place a deposit to formalize the order. Finally, we will arrange production, ensuring that every specification is met to perfection, delivering a seamless and tailored solution.
Question:4. Is it OK to print my logo on the product?
Answer: Certainly, it is indeed possible. Please formally notify us before the production phase and confirm the design using the sample we provide. This step ensures that your branding is captured with the highest level of precision and excellence.
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