How to choose a rotor for rotary lobe pump

Donjoy sanitary rotary lobe pump with 6 types as below

Butterfly Rotor:

It’s most common rotor use for rotor pump.Suitable for transporting material, with low particle breakage rate and small pulse. (Recommend )

3-Leaves Rotor:

Suitable for transporting all kinds of material, with particle breakage rate and smaller pulse than butterfly rotor (Recommend)

Spiral Self-priming Rotor:

With strong self-priming capability could transport with particle, gas-liquid, mixture, oil, dairy products, etc. It also extracts and transports all kinds of sewage, sludge, cow dung.

Single Butterfly Rotor:

Suitable for transporting material with large particle, with low particle breakage rate for large particle, large pulse, low pressure and small volume.

2-Leaves Rotor:

Suitable for transporting all kinds of material, with particle breakage rate, large pulse, low pressure and small volume.

5-Leaves Rotor:

Suitable for transporting all kinds of material, with high particle breakage rate, very small pulse and smaller flow.