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  1. ullas2711

    Max Presuure in Brazed Copper Piping

    Hi All, Please let me know that the maximum pressure that a brazed copper piping of size 1 1/4" can withstand. Thanks in advance
  2. ullas2711

    Laying of CS pipe in Concrete

    @littleinch Thank you for the feedback.
  3. ullas2711

    Laying of CS pipe in Concrete

    Thankyou for the feedback.@ Little Inch The pipe tape used was of brand Petro and was coated with adhesive like grease. but we had not coated this tape with polyethylene coating.The corrosion developed at the outer layer of pipe.
  4. ullas2711

    Laying of CS pipe in Concrete

    Dear All, We have laid 1" CS Sch 40 pipe for transporting engine oil at a depth of 50 cm. The pipe was wrapped with tape and was then buried. The pipe developed corrosion within a year and now we have to replace it. Now we are planning to pour concrete in the trench then lay the pipe wrapped...
  5. ullas2711

    Pump Head Calculation

    Hello All, i have read in many articles that the head of a centrifugal pump is equal to the difference of discharge and suction pressure. if so, how can we calculate the hesd for submersible pumps which are also of centrifugal type? Thanks in advance.
  6. ullas2711

    Supporting of Pipe

    Dear all Thanks for the feedback. I don't have any other points to support the pipe. The only option is to use the purlin in the roof. I have come across Gripple support system which uses cables to support the pipe. U can find more info at www.gripple.com. But not sure how effective it...
  7. ullas2711

    Supporting of Pipe

    Dear All, I need to run a 1" Galvanized air pipe in a ware house of height 9 mtr. The pipe will be running at a height of 4 mtr from the ground. My question is regarding the supporting of this pipe. Can I use a threaded rod for a length of 5 mtr to support this pipe from the ceiling? If...
  8. ullas2711

    Pressure Testing of PVC Pipe

    Can anyone help me in calculating friction drop in looped pipes? thanks in advance........
  9. ullas2711

    Pressure Testing of PVC Pipe

    Hi All, Thanks very much for the response. We have decided to install isolation valves at an interval of 500 mtr and then test the pipe. The working pressure is 10 bar and will be tested at 15 bar.
  10. ullas2711

    Pressure Testing of PVC Pipe

    Hi All, I want to hydro test a 6" Sch 80 PVC pipe. The pipe is of 3000 mtr length with 340 no's of 2" branches. The pipe don't have any intermediate valves. The pipe is used to convey water for irrigation. Please let me know the procedure to test this pipe. Thanks in advance
  11. ullas2711

    Brass Valve

    Hi, It will be used to regulate the flow to a fountain nozzle Service fluid is water Max pressure will be 2 bar and max temp will be around 50 degree celcius (yes water temp) Water depth is 0.4 mtr Yes there is access to repair The company says it is safe to use it
  12. ullas2711

    Brass Valve

    Hello All, Is it ok to use Brass Gate Valve (Pegler Make) for under water applications?
  13. ullas2711

    Location of Strainer and its orientation

    Hi, Thank you all for the replies. Yes the pump is drawing from the bottom of the pool and we have put a screen cover over the pool (OASE suction fitting). Now it is not possible to modify the suction line as it is already casted in the concrete. I have found some TORO filters and planning...
  14. ullas2711

    Location of Strainer and its orientation

    Hi, Thanks for the reply. Yes the discharge line is vertical and is of 3" size. You suggested to install the "Y" strainer backwards. Isn't direction of flow important for "Y" strainer?
  15. ullas2711

    Location of Strainer and its orientation

    Dear All, We have recently installed a Lowara pump for feeding the fountain nozzles in an outdoor application. But due to space constraint, were unable to install a strainer in the pump suction line. As the fountain is located outdoors, we are continuously facing the problem of nozzles...
  16. ullas2711

    Pump Suction Piping

    Dear All, I need to install a pump having a suction size of 3". The suction is taken from a tank and because of lack of space, it is not possible to install a 3" line. So we are thinking to install 2 numbers of 2" pipe and connect them to a 3" tee and then connect to the pump. Is it feasible...
  17. ullas2711

    Air pressure needed at compressor outlet

    Dear All, Suppose I have a 5 storey building and air at 5 bar is needed at the 5th floor where height of each floor is 3 mtr, what should be the pressure at the compressor discharge which is placed at the ground floor? In general whether elevation plays a role in determining the discharge...
  18. ullas2711

    Pumps connected in Parallel

    Yes I am running them in parallel
  19. ullas2711

    Pumps connected in Parallel

    Hi All, I have installed two submersible pumps of same make and specification in a tank and connected the discharge of both of them to a common header. I want to know what will be the pressure at the header if the pump discharge pressure is 2 bar. Whether the pressure in the header remain 2...
  20. ullas2711

    Minimum Pressure Required to open a spring loaded Check Valve

    Dear All, I would like to know what is the minimum pressure required to open a spring loaded check valve. Thanks in advance...

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