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, ensuring peak performance and reliability. Typically composed of three essential functional modules-connecting blocks, directional valves, and end plates-these valves are designed specifically for hydraulic systems in top-tier engineering machinery. They expertly manage the movement direction and speed of hydraulic cylinders, motors, and other actuators, guaranteeing precision and control. Key features include: a compact structure, exceptional energy efficiency, and the capability for stepless speed control. Furthermore, they enable multiple actuators to operate in unison under varying loads, delivering unmatched performance and versatility for any application.
The HLPSL valves are meticulously tailored for constant displacement pump systems, ensuring consistent and reliable operation. In contrast, the HLPSV valves are expertly engineered for variable pump systems. While 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 Specifications
HLPSL: Constant Displacement Pump (Effective and Reliable);
HLPSV: Variable Displacement Pump (Versatile and Adjustable);
(2) Port P & R of the Connection Block:
2-G3/8 (Standard)
3-G1/2 (Reliable);
4-G3/4 (Enhanced Capacity);
5, 55-G1 (Robust);
6-G1 1/4 (High Flow);
(3)Additional Component Options:
C,Standard Type;
G,Throttle Valve (Only for HLPSL);
H,Fixed Differential Overflow Valve (Enhances Circulating Pressure, Approx. 14 Bar, HLPSL);
(4)Pilot Oil Circuit Pressure Options:0: Without Pressure Reducing Valve; 1: With 20 Bar Pressure Reducing Valve; 2: With 40 Bar Pressure Reducing Valve;
(5)2/2-Way Magnetic Ball Valve for System Unloading: C: Without Magnetic Ball Valve; F: Normally Open Magnetic Ball Valve (Pressurizes with Power, Unloads without Power); D: Normally Closed Magnetic Ball Valve (Unloads with Power, Pressurizes without Power); D../F. , With Pressure Limiting Valve (Functions as Secondary Pressure with F50, Pressure Value Indicated);
(6)Tool Adjustable Pressure Limiting Valve in the Connection Block: Pressure Limiting Valve Sets (63, 120, 210, 280, 315, 350, 400 Bar); /NF: Without Pressure Limiting Valve (Only for HLPSV);
(7)Product Series: -2 Series;Choose from our diverse series options to meet your specific needs: -3 3 series; -5 5 series;
(8)Thread size options for directional spool valve ports A & B: 2-G3/8; 3-G1/2; 4-G3/4; 5-G1; Plus, an ancillary block or intermediate transition block featuring 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) Customize valve core functionality with these symbols: L, M, F, H, J, B, R, O, N;
(11) Output flow code for ports A & B: Achieve optimal performance with max output flow options 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 the pressure of actuator ports A & B simultaneously; A---B---, limit the pressure of actuator ports A & B separately, measured in units of bar;
(13) Function ON/OFF and pressure outlet choices: 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 versatility: 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 specifications: /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 configurations: E1, standard end plate, external discharge of pilot oil, connecting oil return control port T externally; E2, similar to E1, with port Y additionally attached; E3, featuring a 2-position 3-way magnetic ball valve; ensures system pressure rises to safety valve pressure upon power supply;
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 lengths: G12-12VDC;G24-24VDC; G24Ex-3m-24VDC; G12Ex-3m-12VDC; G24MA-3m-24VDC; G12d3f82b00
Since 2009, Jiangsu KM Hydraulic Control System Co., Ltd. has been a beacon of innovation and excellence in the hydraulic industry. As a proud member of the China Baoan Group (stock code: 000009) and a national high-tech enterprise, we excel in the research, development, manufacturing, and sales of premium hydraulic components. Our accolades include recognition as a national 'specialized, refined, and innovative' small giant enterprise, underscoring our commitment to technological advancement and quality.
Our flagship product, the load-sensitive proportional valve, represents cutting-edge hydraulic system control, meticulously engineered for construction machinery and heavy-duty equipment. This versatile component is vital in emergency rescue operations, tunnel engineering, mining applications, and municipal service vehicles. We proudly collaborate with leading domestic manufacturers, significantly advancing the localization of core hydraulic components for high-end mechanical equipment. Guided by our core philosophy of 'serving customers with technology, impressing customers with our attitude, and retaining customers with quality,' we remain steadfast in our dedication to delivering exceptional products, services, and solutions. Our mission is to become a globally trusted supplier of premier hydraulic components.
Question1. What is the standard lead time for your products?
Answer:Typically, our production lead time is one month from the date of payment receipt, ensuring you receive high-quality products promptly.
Question2. Are there any minimum order quantity (MOQ) requirements for LED light orders?
Answer: We are pleased to offer a very low MOQ. You can even order a single piece for sample evaluation.
Question3. What are the steps to place an order for LED lights?
Answer: First, communicate your specific requirements or intended application. Next, we will provide a tailored quote based on your needs or our expert recommendations. After you confirmthe drawings and place a deposit, we will formalize and proceed with the order, ensuring smooth and efficient production.
Question4. Can we print our logo on the products?
Answer: Absolutely! Please inform us formally before we commence production and confirm the design with the provided sample.
){kind=link}