Yamada makes drum pumps in 3 port sizes. The 3/8” pump is available in Aluminum and Stainless Steel. The 1/2” pump is available in Polypropylene or Kynar. The 3/4” pump is available in Polypropylene, Aluminum or Stainless Steel.
All pumps come with a 2” bung fitting and fit a standard 55 gallon drum. When using a drum pump on flammable products remember to ground the barrel and the pump to eliminate state discharge.
Also, when the barrel is empty they become top heavy so make sure that it is supported properly to prevent tipping over.