Introducing our groundbreaking HLPSL and HLPSV load-sensitive proportional multi-way directional spool valves. These revolutionary engineering marvels seamlessly integrate pressure, flow, and directional control into a singular, 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 designed 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. Additionally, 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. Although 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 Improving the Circulating Pressure (about 14 bar, HLPSL);
(4)Pilot Oil Circuit Pressure: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, in case of power supply, the pump is pressurized; in case of power failure, the pump carries out unloading; D: normally closed magnetic ball valve, in case of power supply, the pump carries out unloading; in case of power failure, the pump is pressurized; D../F. . , with Pressure Limiting Valve, it can serve as secondary pressure (F50) with pressure value indicated;
(6)Tool Adjustable, Pressure Limiting Valve in the Connection Block: Pressure limiting valve sets such as 63, 120, 210, 280, 315, 350, 400 bar; /NF: without pressure limiting valve (only for HLPSV);
(7)Product Series: -2 series;Choose from either the robust 3 series or the highly reliable 5 series;
(8)Thread size options for 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; Offering versatile connection options.
(9)Directional valve block inflow controller options: 1, without inflow controller; 2, standard inflow controller; 4, 3-way flow controllers for inlet and outlet (optimized for N 3/3-way valve); 5, reinforced inflow controller; 8, pre-selectable;
(10) Valve core function symbols available: L, M, F, H, J, B, R, O, N;
(11) Output flow rates for ports A & B: Select from maximum output flows: 3, 6, 10, 16, 25, 40, 63, 80, 120, 160, 210 (L/min);
(12) Secondary pressure limitation options: N, no pressure limiting protection; C, simultaneous pressure limitation at actuator ports A & B; A---B---, separate pressure limitation for actuator ports A & B, unit (bar);
(13) ON/OFF function and pressure outlet options: 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 methods: A(1,2), manual 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 options: /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, 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, with a 2-position 3-way magnetic ball valve mounted; in power supply scenarios, system pressure rises to the safety valve pressure;
E4, similar to E1 with internal discharge of pilot oil, port T can be sealed; E5, similar to E2 with internal discharge of pilot oil, port T can be sealed; E6, similar to E3 with internal discharge of pilot oil, port T can be sealed;
(17) Control voltage and anti-explosion 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 emerged as a beacon of groundbreaking innovation and unparalleled excellence within the hydraulic industry. As a prestigious 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 distinguished status as a national 'specialized, refined, and innovative' small giant enterprise underscores our unwavering commitment to technological advancement and superior quality. This dedication positions us prominently as leaders in our field.
Our flagship creation, the Hawe PSL Type: Load Sensitive Valve for Advanced Crane Control, epitomizes the pinnacle of sophisticated hydraulic system engineering. 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 partnerships with 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 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.
Customer Inquiry:1. What about the lead time?
Our Response:We typically require approximately one month for lead time following the receipt of payment. This period allows us to engage in meticulous preparation and uphold stringent quality control standards, ensuring that your products are delivered with flawless precision.
Customer Inquiry:2. Do you have any MOQ limit for LED light orders?
Our Response: We provide an extraordinarily low minimum order quantity, allowing you to order even a single piece for sample evaluation. This flexibility ensures that your specific project requirements are met effortlessly.
Customer Inquiry:3. How to proceed with an order for LED lights?
Our Response: Begin by informing us of your precise requirements or application details. We will then offer a tailored quote based on your needs or our expert recommendations. Upon your confirmation of the drawings,drawings,and placement of a deposit to formalize the order, we will proceed with production. Every specification will be meticulously adhered to, delivering a seamless and bespoke solution tailored to your needs.
Customer Inquiry:4. Is it OK to print my logo on the product?
Our Response: Absolutely, this is completely feasible. Please formally notify us before production commences and confirm the design based on the sample we provide. This ensures that your branding is flawlessly represented with the highest quality and precision.
){kind=link}