Tek-Tips is the largest IT community on the Internet today!

Members share and learn making Tek-Tips Forums the best source of peer-reviewed technical information on the Internet!

Register Log in
  • Congratulations cowski on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

Recent content by sam01

  1. sam01

    WWTP Sodium Hypochlorite System

    Utilize CPVC schedule 80 piping, they also use cpvc ball valves where the ball of the valve is drilled on one side to prevent gassing of the hypochlorite. I have used CPVC piping in the past which works well, also use compatible adhesives for installation of the piping.
  2. sam01

    Welding Steel Pipe

    Have a 66 inch steel discharge header at a pump station. Want to connect a 36 inch pipe perpindicular to the 66 inch. The outer edge of the 36 inch intersects a mitered welded elbow of the 66 inch discharge header. Is there a minimum clearance required by code between the two welded joints?
  3. sam01

    Seismic Code Requirements

    Does anyone know or can reference the seismic code requirements for mechanical equipment. This would involve a new york city wastewater treatment plant where the building is design to withstand seismic loads but what happens to ancillary equipment such as inlet air ductwork for a back up power...
  4. sam01

    Hastalloy or C/S PTFE for Hypo

    Current wastewater treatment plants use PVC or CPVC piping to convey sodium hypochlorite at 15% solution. This is the most economical choice.
  5. sam01

    Storage tank safety

    The air that is utilized from the tanker truck to transfer the polymer goes through a descicant drier that is installed on the truck. The air is pressurized by an air compressor installed on the truck. The flow rate of air from the air compressor is minimal during the liquid transfer from the...
  6. sam01

    Storage tank safety

    The liquid is emulsion polymer which is highly viscous with a specific gravity of 1.06. The storage tanks are vented through a descicant drier that prevents any moisture from entering the tanks. The desicant drier is the restriction due to the pressure drop across the descicant. The polymer from...
  7. sam01

    Booster Pumping System, Control Strategy

    The pumping system consists of pumping effluent water from the final effluent tanks at a wastewater treatment plant. The largest demands are spray water which I'd like to maintain at 40 psi. Some of the other demands throughout the plant include cooling water, pipe flushing(intermittent), There...
  8. sam01

    Booster Pumping System, Control Strategy

    I'm trying to develop the control strategy for a booster pumping sytem. There are 4 booster pumps three operating and one standby, each pump operates at 130 TDH at 3500 gpm. the maximum flow rate for the system would be 10500 gpm. The pumps are controled by a variable frequency drives. The...
  9. sam01

    Booster Pumping System

    The effluent system will be utilized for spray water, cooling water, and flushing water at various locations around the plant. Actually my sytem curve shows about 50 feet of additional head at max flow 10,500 gpm with three pumps operating together. Including my static head of 60 psi(138.6 feet)...
  10. sam01

    Booster Pumping System

    I would like to develop a booster pump system that would maintain a system pressure of 60 psi at a municipal plant. The system will distribute effluent water at various locations. My suction header is drawing off of an effluent channel. A positive suction head of 14 feet plus atmospheric. I want...
  11. sam01

    Variable Frequency Drives

    Thanks for everyone's help. I would like to maintain a system pressure of 60 psi at the plant. The effluent water will be utilized at various locations. My suction header is drawing off of an effluent channel. A positive suction head of 14 feet plus atmospheric. I want to set up a pipe network...
  12. sam01

    Storage tank safety

    The problem is not the liquid pumping but when the last drop of liquid leaves the tanker truck. Then you have a pressurized vessel of air that can displace a huge volume of air. The receiving storage tank has a desicant type of dryer on the vent thats rated for 150 cfm @ 2" water pressure.
  13. sam01

    Storage tank safety

    What is typically installed on fiberglass storage tanks to prevent surges in backpressure during chemical tank loading using air loading practices for tanker trucks. These trucks utilize compressed air to transfer liquid volume from tanker to storage vessels. The fiberglass storage tanks are...
  14. sam01

    Variable Frequency Drives

    I need information on putting together a booster pump system utilizing effluent water for a municipal plant. Initially the minimum demand is about 3300 gpm. The final maximum demands are about 12000 GPM. The system needs to supply effluent water at a pressure of 60 psi. The total number of pumps...
  15. sam01

    Determining Air Flow.

    Thanks for everyone's help, sorry I didn't get back to this sooner. Haf can you please send me the formulas or tables for choke flow. Thanks again.
See more

Part and Inventory Search

Back
Top