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Thankyou to both EdStainless and Steve Jones for the information probided. Very Clear. Was not aware of those IOGP material datasheets. Mark

Hi There, We have been made aware of an Operator that has some Duplex material with very poor toughness (> 0 Deg C). We are aware of this issue with A105 material where the chemical composition and assumed toughness is not true due to manipulation of the chemistry with Boron etc. We have...

Hi All, Sorry if I was not clear. ASME B16.5 is a flange spec. What part of the flange is represented in Fig. #11? I understand the thread depth criteria. I was trying to understand if Fig. #11 pertains to radial (not tangential) holes in the outer edge of a flange - similar to ASME B16.36 -...

Follows on from thread378-436363. I am trying to interpret exactly what is being said in Figure #11 (attached). Nothing in Interpretations 1 through 4. Assume we are looking at the face of a flange and drilling a tangential hole that would go between bolt holes. 2 colleagues thought this was...

Hi rconner, sorry, I should have mentioned these devices are only used for Brownfield work. All piping would have been had NDT and hydrotest previously. Thank you, Mark

Hi All, we have been using Flange Weld Testers and Internal Weld Testers (see Inpipe Products - one of a number of equipment suppliers)to allow hydrostatic testing of individual welds. This technique allows the testing of individual welds rather than testing the whole piping spool or system -...

Hi All, All of the LRPs have a dynamic brake resistor and a smaller version on the beam pumps – they have the counter weight to minimise that effect. Nearly all wells are driven through a VSD/VFD. Thank you for the replies. The overhead 33kV system was designed for 3 times the wells/load...

Hi All, I am not an Electrical Engineer so apologise for any incorrect terminology. We have a 60 well oil field with a mixture of beam pump and LRPs - all about 20-40kW (33kV-415V transformers at each site) each with no harmonic filtering installed. There is also a waterflood with a number of...

Hi All, I have reviewed many threads on this forum and have concluded the consensus is that sealant is required on NPT threads when used on pressured piping up to 300ANSI. An associated thin layer of thread tape is debatable. My question is - what is the best sealant to be used for NPT...