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 engineered 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)Fundamental Connection Block Codes
HLPSL: Constant Displacement Pump;
HLPSV: Variable Displacement Pump;
(2) Port P & R Specifications for the Connection Block:
2-G3/8;
3-G1/2;
4-G3/4;
5, 55-G1;
6-G1 1/4;
(3)Additional Components Included:
C,Standard Type;
G,Throttle Valve (Only for HLPSL);
H,Fixed Differential Overflow Valve for Enhancing Circulating Pressure (Approx. 14 Bar, HLPSL);
(4)Pilot Oil Circuit Pressure: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 (Pump Pressurizes with Power Supply, Unloads Without); D: Normally Closed Magnetic Ball Valve (Pump Unloads with Power Supply, Pressurizes Without); D../F. With Pressure Limiting Valve, Can Serve as Secondary Pressure (F50) with Specified Values;
(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;-3: 3 Series; -5: 5 Series;
(8)Thread size of 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, enhanced inflow controller; 8, pre-selectable;
(10) Valve core function symbols: L, M, F, H, J, B, R, O, N;
(11) Output flow codes for ports A & B: Maximum output flow rates for ports A & B typically range from 3, 6, 10, 16, 25, 40, 63, 80, 120, 160, to 210 L/min;
(12) Secondary pressure limitation options: N, no pressure limiting protection; C, simultaneous pressure limitation for actuator ports A & B; A---B---, separate pressure limitation for actuator ports A & B; unit: bar;
(13) Function ON/OFF and pressure outlet options: N, no 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 modes: A(1,2), manual with long handle (1=without handle, 2=with short handle); E, electric proportional control; EA(1,2), electric proportional control plus manual (1=without handle, 2=with short handle); D, electric switching value control; DA(1,2), electric switching value control plus manual (1=without handle, 2=with short handle); M, manual friction positioning with long handle; H, pure hydraulic control with two pilot oil ports aligned with oil ports A and B; F, pure hydraulic control with two pilot oil ports perpendicular to oil ports A and B and outward respectively;
(15) Ancillary block port sizes: /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 with external discharge of pilot oil and external oil return control port T; E2, similar to E1 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 the safety valve pressure;
E4, similar to E1 with internal discharge of pilot oil and sealable port T; E5, similar to E2 with internal discharge of pilot oil and sealable port T; E6, similar to E3 with internal discharge of pilot oil and sealable port T;
(17) Control voltage and anti-explosion cable length: G12-12VDC;G24-24VDC; G24Ex-3m-24VDC; G12Ex-3m-12VDC; G24MA-3m-24VDC; G12MA-3m-12VDC (anti-explosion type, guide line lengths available: 3m, 5m, 10m, etc.)
Since our inception in 2009, Jiangsu KM Hydraulic Control System Co., Ltd. has emerged as a beacon of innovation and excellence within the hydraulic industry. As a distinguished member of the China Baoan Group (stock code: 000009) and honored as a national high-tech enterprise, we specialize in the research, development, manufacturing, and sales of top-tier hydraulic components. Our accolades include recognition as a national 'specialized, refined, and innovative' small giant enterprise, underscoring our unwavering commitment to technological advancement and unparalleled quality.
Our flagship product, the load-sensitive proportional valve, represents the zenith of advanced hydraulic system control, meticulously engineered for construction machinery and heavy-duty equipment. This versatile and indispensable component is crucial in critical applications such as emergency rescue operations, tunnel engineering, mining, and municipal service vehicles. We take immense pride in our collaborations with numerous prominent 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 ascend as a globally trusted supplier of premier hydraulic components.
Question:1. What about the lead time?
Answer:Our lead time for production is generally around one month from the time payment is received. This period allows us to ensure comprehensive preparation and stringent quality control.
Question:2. Do you have any MOQ limit for LED light orders?
Answer: We provide an exceptionally low minimum order quantity, allowing you to even order a single piece for sample evaluation, tailoring to your specific needs.
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Answer: Begin by communicating your specific requirements or application to us. Next, we will offer a customized quote based on your needs or provide expert recommendations. Once you confirm thedrawings,and place a deposit, the order is formalized. Finally, we will manage the production, ensuring all your specifications are meticulously met.
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Answer: Absolutely, it is possible. Please inform us formally before production commences and approve the design based on the sample we provide to ensure your branding is flawlessly represented.
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