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skaushi
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Join Date: Jan 2018
Posts: 13

RP4 Pump Outlet Size

06/24/2018 6:21 AM

Dear All,

In the given specification of a borehole pump (Grundfos SP 60 -7R), the pump outlet size has been given as "RP4". I would be grateful if someone could help me to understand this size mm.

Thanks & Regards,

Kaushika
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Pathfinder Tags: RP4 Pump outlet size
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Rixter
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#1

Re: RP4 Pump Outlet Size

06/24/2018 10:49 AM

I'm guessing it's British Standard pipe thread, internal parallel pipe thread, 4"...

"These standard pipe threads are formally referred to by the following sequence of blocks:

  • the words, Pipe thread,
  • the document number of the standard (e.g., ISO 7 or EN 10226)
  • the symbol for the pipe thread type:
    • G, external and internal parallel (ISO 228)
    • R, external taper (ISO 7)
    • Rp, internal parallel (ISO 7/1)
    • Rc, internal taper (ISO 7)
    • Rs, external parallel
  • the thread size

Threads are normally right-hand. For left-hand threads, the letters, LH, are appended.

Example: Pipe thread EN 10226 Rp 2 1⁄2 "

https://en.wikipedia.org/wiki/British_Standard_Pipe
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SolarEagle
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#2

Re: RP4 Pump Outlet Size

06/24/2018 12:48 PM

101.6mm

https://www.lenntech.com/grundfos/SPFAM/14A01903/SP-60-3.html

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skaushi
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Join Date: Jan 2018
Posts: 13
#3

Re: RP4 Pump Outlet Size

06/24/2018 10:21 PM

Dear All,

Thank you very much for helping me.

Thanks & Regards,

Kaushika
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PWSlack
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United Kingdom - Member - Indeterminate Engineering Fields - Control Engineering - New Member

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#4

Re: RP4 Pump Outlet Size

06/25/2018 7:41 AM

A simple phone call to the pump manufacturer is all it takes...

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tonyhemet
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#5
In reply to #4

Re: RP4 Pump Outlet Size

06/25/2018 4:52 PM

Asking a question here must be simpler or more enjoyable.
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tonyhemet
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#6
In reply to #5

Re: RP4 Pump Outlet Size

06/25/2018 4:55 PM

It's either answer questions here or head over to the bothy.
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PWSlack
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#7
In reply to #5

Re: RP4 Pump Outlet Size

06/26/2018 2:48 AM

...and infinitely more time-consuming.

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PWSlack
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#8
In reply to #5

Re: RP4 Pump Outlet Size

06/26/2018 3:07 AM

Instead of going directly to the source of the information, one can waste time by voting post replies off-topic, for example. It's all in a day's work for some people...

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Codemaster
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#9
In reply to #4

Re: RP4 Pump Outlet Size

06/27/2018 8:54 AM

But Grundfos might reply that Rp4 (not RP4) is a recognised pipe thread designation, and suggest the OP does his homework .

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PWSlack
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#10
In reply to #9

Re: RP4 Pump Outlet Size

04/09/2024 7:08 AM

<...Grundfos...> and CR4 might be in agreement, then.

Isn't that what the telephone is for - i.e. to be used for telephony?

A search on the term gives the answer in the manufacturer's image of the pump; it would be best for the original poster to learn how to do research, of course.

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Codemaster (1); PWSlack (4); Rixter (1); skaushi (1); SolarEagle (1); tonyhemet (2)

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