Installation of "RO" down stream of Blow Down Valve

[gad480]

Need Help, what is the suitable distance between Blow Down valve and D/S restriction orifice?

[dbert]

I am not aware of standards discussing this point,
when discharging we expect a critical flow through RO and that is the point to consider,
of course you'll place the BDV upstream (higher density, lower velocity) of RO,
generally I consider easy maintenance operations and max. sound level (which depends from several factors)

[fatass]

[link Point to another website Only the registered members can access]
24" is good practice