James Andrew
New Member
I am actually working out a design for irrigation using above ground storage tanks , and I want to check two things: 1) HP Size of the sprinkler pump 2) Cycle Stop Valve PSI
Current Plan:
Setting up sprinkler zone with 1 1/4 (poly) main line to feed 3 different control boxes.
--The main line is a direct line extending 320 feet. 1st Control box- 70 feet from pump, 2nd -150ft, 3rd- 320 ft (Friction Loss in 300' 1 1/4 poly pipe= 3psi)
-- Each zone will be configured up to 10-12 gpm in sprinkler head output, extending laterally no than 100ft of 1 inch poly pipe. (Friction Loss in 1 =3.82) Mostly rainbird rotary sprinklers, some smaller emitting heads too for flower beds.
Therefore Total Friction Loss in Piping= -6.83 psi at furthest zone, -4.5 psi at closest zones
-NO ELEVATION issues
-I am not sure what if any friction loss will be caused by the irrigation control valve itself. I cannot see to find any stats on that at all.
Conclusion-Question:
So I am thinking a 60 psi Cycle Stop Valve with 2 hp pump, 50-70 pressure switch, 4 gallon pressure tank. Does this sound right?
Current Plan:
Setting up sprinkler zone with 1 1/4 (poly) main line to feed 3 different control boxes.
--The main line is a direct line extending 320 feet. 1st Control box- 70 feet from pump, 2nd -150ft, 3rd- 320 ft (Friction Loss in 300' 1 1/4 poly pipe= 3psi)
-- Each zone will be configured up to 10-12 gpm in sprinkler head output, extending laterally no than 100ft of 1 inch poly pipe. (Friction Loss in 1 =3.82) Mostly rainbird rotary sprinklers, some smaller emitting heads too for flower beds.
Therefore Total Friction Loss in Piping= -6.83 psi at furthest zone, -4.5 psi at closest zones
-NO ELEVATION issues
-I am not sure what if any friction loss will be caused by the irrigation control valve itself. I cannot see to find any stats on that at all.
Conclusion-Question:
So I am thinking a 60 psi Cycle Stop Valve with 2 hp pump, 50-70 pressure switch, 4 gallon pressure tank. Does this sound right?