Aeration Blower NRV

[nalinds]

What is the best type of non-return valve for an Blower (wastewater aeration 45kPa, 6000 L/hr) discher line?

 

[nalinds]

Also what type is the best for isolation valve? Same line.

 

[bimr]

These were used on the last project:

Each blower shall be supplied with one 14-inch wafer-style, dual plate check valve that shall be
installed on the discharge line immediately following the discharge cone. Check-valve will be
carbon steel body, Aluminum Bronze Disc, Stainless Steel 316 Spring and Viton Seat. Check valve
shall meet API 594 standard, ANSI 150 lb.

Each blower shall be supplied with an 18-inch manually operated discharge valve. Valve shall be
lug or wafer type, cast iron body, Stainless steel 316 disc, Stainless Steel 316 Stem, EDM seat
suitable for air service and temperature requirements.

 

[nalinds]

Thanks bimr !!!