Vane pump management points

In addition to preventing dry running and overload, as well as avoiding excessive air inhalation and vacuum suction, there are several other important considerations when working with vane pumps: 1. **Direction of Rotation**: Vane pumps have a specific direction of rotation that must be strictly followed. Reversing the direction can cause improper operation because the rotor slots are angled, and the vanes are designed to function in one direction only. The oil inlet and outlet ports are positioned accordingly. Reversible vane pumps require special design features to ensure proper performance. 2. **Proper Assembly and Positioning**: When assembling the vane pump, it's crucial to align the oil pan and stator correctly using positioning pins. The vanes and rotor must be installed properly to avoid contact with the inner surface of the stator. The suction area is particularly prone to wear. If necessary, you can flip the pump to use the previously worn suction zone as a discharge area, extending its lifespan. 3. **Cleanliness During Disassembly**: Always ensure the work area is clean and that the hydraulic oil used is properly filtered. Contamination can significantly reduce the efficiency and life of the pump. 4. **Vane Clearance in Slots**: The clearance between the vanes and their slots must be carefully maintained. If the gap is too large, it will increase internal leakage, reducing efficiency. If it's too small, the vanes may not expand freely, leading to operational issues and potential damage. 5. **Axial Clearance (ηv)**: The axial clearance has a significant impact on the pump’s volumetric efficiency. - For small pumps: 0.015 to 0.03 mm - For medium-sized pumps: 0.02 to 0.045 mm 6. **Oil Temperature and Viscosity**: The oil temperature should generally not exceed 55°C, and the viscosity should be within the range of 17 to 37 mm²/s. If the viscosity is too high, oil intake becomes difficult; if it's too low, internal leakage increases, which can lead to reduced performance and premature failure. By following these guidelines, you can ensure the reliable and efficient operation of vane pumps, while also prolonging their service life. Always refer to the manufacturer's specifications for exact tolerances and operating conditions.

NM Steel Plate

Besides NM Steel Plate, HP Wear Resistant Group offers various products of wear plates namely Cr-Carbide Weld Clad Plates, Smooth Surface CCO plate, Heat Treated Wear Plates (AR Plate or Q&T Steel), Casting Plates, Tungsten Carbide Coated Plates in various grade and multiple size options.

An abrasion resistant, quenched and tempered, high strength, fine grained steel Wear Plate and Abrasion Resistant Wear Plate offers lower cost wear protection. With a hardness of 250 to 320 BHN, it will outlast hot rolled carbon plate but can still be drilled, punched, or machined for liners and wear plates. Strength characteristics of this plate make it an excellent choice for structural use.

Provides superior hardness to toughness ratio. NM Steel Plate is liquid-quenched and tempered and through-hardened. The result is a plate with excellent abrasion resistance and high impact resistance. The outstanding wear characteristics can be attributed to the balanced chemistry and very fine distribution of Chromium, Boron, Titanium and Molybdenum. The resulting carbides reinforce the plate structure and provide uniform through-hardness.

Provides maximum wear resistance from impact and sliding. The fine grained, thru-hardened alloy steel chemistry makes this plate have the optimum hardness/toughness ratio.

The Standard grade of NM Steel

DIN: XAR300,XAR400, XAR450, XAR500, XAR600, DILLIDUR400V,DILLIDUR450V,DILLIDUR500V; X120Mn12; 1.3401;
SSAB:400,450,500,550,600;WELDOX700,WELDOX900,WELDOX960;
NF: FORA400,FORA500,Creusabro4800,Creusabro8000;
EN: QUARD400,QUARD450,QUARD500 ; RAEX320,RAEX400,RAEX450,RAEX500;
DUrostat400,DUrostat450,DUrostat500;

JIS: JFE-EH360,JFE-EH400,JFE-EH500, WEL-HARD400, WEL-HARD500; SUMIHARD-K340,SUMIHARD-K400,SUMIHARD-K500

GB: NM360,NM400,M450,NM500,NM550,NM600,NR360,NR400,B-HARD360,B-HARD400,B-HARD450,KN-55,KN-60,KN-63.

Thickness: common 2~100 mm (1~300 mm)

Surface: Clean, finishing, blasting and painting according to customer requirement

Application: Widely used in a variety of architectural and engineering structures,such as
1) metal constructions such as buildings, bridges, ships
2) transmission tower, reaction tower

Impact Wear Resistant Steel Plate,NM400 Wear Resistant Steel Plate, Wear-Resistant Steel Plate,Wear-Resistant Steel Plate

HuiFeng Wear Resistant Group , https://www.hpwearsolution.com