Recent content by hemvig

Hello: Can anyone please let me know the Castinite polymer pump baseplate temperature limits. Can it withstand cold temperature of about - 46 degree celcius. Any advantages and disadvantages of Castinite polymer baseplate? Appreciate your answer Thank you

Hi, I have been asked by the client to modify the existing VS-6 API 610 pumps for the new process conditions. The existing pump had 9 stages and in the new modified pump 4 impellers will be kept at exiting trim, add a stage and 5 impellers will be replaced. Please let me know if a lateral and...

I have a HAZOP question Pump A and B will be installed in parallel with one pump acting as standby spare. Both pumps have tight shut-off orbit type valves on the suction and discharge. If the suction side orbit valve on the spare pump is accidentally closed then I expect the discharge...

Role of washer stiffness in Flange Leakage Design? Please explain. Thank you

Pumpsonly: Thanks for the reply on BB5 pumps. I know how the centerline mounted looks like on BB5, but just wanted to get more information. Also the vendor on the BB5 pumps said it is possible to have a side side arrangement. Does anybody know if there are any drawbacks in having a side side...

What do you mean by Centerline supported pump. Please explain. Please let me know other types of supports for the pumps. Thanks

For a BB5 (Barrel type) is it possible to have a side suction and side discharge nozzles instead of a top suction top discharge. If possible are there any limitations or concerns that needs to be taken care. Thanks in advance for your replies.

What is the minimum continuous stable flow for fire water pump? Is there any requirement if so howmuch in terms of percentage of rated flow? The firewater pump is on an offshore platform. Thanks in advance for you replies.

Does anyone has experience with Side channel pump, If so what are there advantages and disadvantages. I have high pressure application (17387 KPA) or 127 m3/hr flow and head of 4200m, pumping low specific gravity liquid (0.27). Are these pumps suitable to handle high pressures?

Difference between Desiccant type and membrane type Air Dryer? Thx

When should we use a Ellipsoidal head instead of Flat head. I have a pressure vessel with 42" diameter it has a Ellipsoidal head made out of rolled steel and another pressure vessel with 36" has a Flat head (Flanged)The fabricator has used a 36" pipe for the second pressure vessel. Please let...

I have seen people wearing the H2S monitors on the safety helmet, near the collar or clipped to the shirt pocket. Can anyone let me know is it safe to wear the H2S monitor on the safety helmet. Please advise if OSHA has any requirement. Thank you

The vendor quoted the MCSF as zero, Is it ok to run the pump at no flow for longer time? Please explain? Vendor quotes Allowable operating region: from 0 to end of the curve......is it true or is there a catch?

Is there any problem if minimum continuous stable flow is zero for ANSI Centrifugal pumps? If so please explain if there should be some flow or not?

Lean amine Pump flow: 90 gpm head: 329 ft temp 150 F sp. gravity: 0.994 Vapor pr: 2.02 psia Can someone help me with the seal selection which one is good Plan 74 or Plan 52? If so Why? Explain. Thanks in advance