Sealless pump stds.

[rotaryguy]

Hi guys,

i was looking for standards applicable to Sealless magnetic drive pumps. I concluded ANSI B73.4 is applicable by stds. googling. however i need the title of ANSI B73.4 where googling failed and even ANSI website have not listed it! strange.... or

if u can provide information on other applicable standards.
service is for phosphoric acid.

thx

 

[rotaryguy]

ok found out this one it can be ASME b73.3 or API 685.

Rotor

 

[pumpking]

Design standards for sealless pumps include ANSI b73.1 and ISO2858 (European spec) which cover dimensional/construction specifications, but the sealless element (whether mag-drive or Canned) is seen as a sealing option as opposed to stand alone pump design to which a standard applies to.