Presenting our state-of-the-art HLPSL and HLPSV load-sensitive proportional multi-way directional spool valves. These pioneering engineering feats seamlessly amalgamate pressure, flow, and directional control into a singular, cohesive unit, ensuring unparalleled performance and reliability. Typically comprising three crucial functional modules-connecting blocks, directional valves, and end plates-these valves are meticulously crafted for integration into premium hydraulic systems, essential in elite engineering machinery. They precisely manage the movement direction and speed of hydraulic cylinders, motors, and other actuators, offering unprecedented precision and control. Standout features include a compact structure, remarkable energy efficiency, and the capability for stepless speed control. Moreover, they enable multiple actuators to operate concurrently under varying loads, delivering unmatched performance and versatility across diverse applications.
The HLPSL valves are meticulously tailored for constant displacement pump systems, ensuring unwavering and reliable operation. In contrast, the HLPSV valves are masterfully engineered for variable pump systems. While HLPSV valves may exhibit a marginally slower response time, they excel in offering exceptional energy-saving performance, rendering them the ultimate choice for applications where efficiency is vital. With their avant-garde 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 Code for Connection Block Set-Up
HLPSL: Fixed Displacement Pump;
HLPSV: Adjustable Displacement Pump;
(2) Connection Block Ports P & R:
2-G3/8;
3-G1/2;
4-G3/4;
5, 55-G1;
6-G1 1/4;
(3)Additional Components:
C,Standard Model;
G,Throttle Valve (Exclusive to HLPSL);
H,Fixed Differential Overflow Valve to Enhance Circulating Pressure (approx. 14 bar, HLPSL);
(4)Pilot Oil Circuit Pressure Options:0: No 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 which pressurizes the pump when power is supplied and unloads the pump when power fails; D: normally closed magnetic ball valve which unloads the pump when power is supplied and pressurizes the pump when power fails;../F. Including Pressure Limiting Valve, it can serve as secondary pressure (F50) with indicated pressure value;
(6)Tool Adjustable Pressure Limiting Valve in the Connection Block: Pressure limiting valve settings such as 63, 120, 210, 280, 315, 350, 400 bar; /NF: without pressure limiting valve (for HLPSV only);
(7)Product Series Options: -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;
(9)Directional valve block inflow controller: 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 symbol of valve core: L, M, F, H, J, B, R, O, N;
(11) Output flow code of ports A & B: Choose from maximum output flows of ports A & B: 3, 6, 10, 16, 25, 40, 63, 80, 120, 160, 210 (L/min);
(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: 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: 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: /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: 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 the length of anti-explosion type cable: 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 within the hydraulic industry. As a distinguished 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 esteemed status as a national 'specialized, refined, and innovative' small giant enterprise underscores our unwavering commitment to technological advancement and superior quality. This dedication firmly positions us as leaders in our field.
Our flagship product, the Load-Sensitive Valve and Control for Hydraulic Crane Technology Systems, represents 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 alliances 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 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, setting new benchmarks of excellence worldwide.
Question:1. What about the lead time?
Answer:The lead time for production is typically one month following receipt of payment. This timeframe allows us to ensure meticulous preparation and stringent quality control for optimal results, ensuring your products are delivered flawlessly.
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Answer: We offer an exceptionally low minimum order quantity. Even a single piece can be ordered for sample checking to meet your specific needs, providing ultimate flexibility for your projects.
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