• 

  Stromag 821−00114 , type 222R

• 

  Woodward 1765-731 obsolete/replaced by 1765-821

• 

  Woodward 1765-821

• 

  Yamatake Azbil 1LS-J821L

• 

  Asco SCE353A821 24 VDC

• 

  Stromag Periflex 214 R (821−00048)

• 

  Novotechnik TIM 0500-301-821-255

• 

  Leister 4G1.2V2 137.821

• 

  Asco SCE353A821.24/DC

• 

  Matrix POX 821.1XOC2XX.62