What are the materials of slurry pump and how to choose wear resistance or corrosion resistance? According to the common saying in the industry, there are two kinds of slurry pump materials: metal material and rubber material. Metal and rubber material can be divided into many kinds. Different slurry pump materials should be selected according to different working conditions. The common metal material is A05 and rubber material is R55.

What are the materials of slurry pump

Metals: A05, A07, A33, A49, cr30, 304 stainless steel, 316 stainless steel, duplex stainless steel

Rubber category: R55, EPDM, hepalon

Resins: polyurethane, polyether ester

The above categories are various materials often used in slurry pumps, among which A05, A49 and R55 are most widely used.

The characteristics of the slurry pump determine the selection of the material of the slurry pump. The slurry pump is a centrifugal pump for conveying the slurry containing solid particles. It should not be pure liquid, so it is generally required to have good wear resistance.

Therefore, the first attribute of the slurry pump material above should be wear resistance.

However, under many special working conditions, we have to give up certain wear resistance and sacrifice wear resistance.

Selection of corrosion resistant medium for slurry pump transportation

In many cases, the slurry we transport contains not only solid particles, but also corrosive characteristics

When selecting the material of slurry pump, it must be determined according to the characteristics of conveying slurry. The expensive one is not necessarily good, but the suitable one is good

For example, we take stainless steel to transport slurry with strong abrasiveness, which is very wasteful and the effect is very poor;

It is also undesirable for us to use A05 slurry pump to transport highly corrosive slurry.

For example, nitrate, sulfuric acid and strong alkali pastes are very corrosive, generally between ph0-3 and ph12-14

Because the corrosion resistance of materials with good wear resistance is not necessarily good, at this time, we must give up A05 and R55 materials and choose A49, cr30, 304 stainless steel, 316 stainless steel, duplex stainless steel, EPDM and hepalon materials with better corrosion resistance. The price of these materials is generally 1-3 times higher than that of ordinary materials, or even more.

How to choose the material of slurry pump

1. Slurry with small acidity and alkali and sharp angular particles: A05 and A07, which are common in metal mines and coal washing. The main application models of slurry pump are ZJ slurry pump, ah slurry pump and ZGB slurry pump;

2. Slurry without sharp corners of particles with small acidity and alkalinity: R55 rubber material, common in metal mines and coal washing, mainly used in slurry pump model: ah slurry pump;

3. Slurry with high acidity and alkalinity and more particles and strong corrosivity: A49 and cr30, which are common in power plant desulfurization industry;

4. Slurry with strong acidity and alkalinity, low temperature and certain abrasiveness: EPDM rubber and haparene rubber are selected, and nitrate transportation is common;

5. Slurry with strong acidity and alkali, low abrasiveness and low temperature: stainless steel;

The material selection of slurry pump is based on the principle of high cost performance and suitability!