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Recent content by geirkvaale

  1. geirkvaale

    API 6FB Testing With or Without Bending

    Hi, Hope somebody can help me with this: We are planning to fire test our product (a pipe connector) according to API 6FB. Our product will be tested under part II (offshore well bay conditions.) After reviewing this test specification, it is not clear to me if bending is a requirement or...
  2. geirkvaale

    Design/Safety Factors for Hydraulic Cylinders

    Thanks Zebra. I have previously looked into all the standards you mentioned: EN 982 is apparently withdrawn and replaced by ISO 4413.. ISO 4413 has no clearly stated factor to use. PED (97/23/EC) has no factors to use either, and doesn't apply either, since we are covered by the machinery...
  3. geirkvaale

    Design/Safety Factors for Hydraulic Cylinders

    Thanks for very helpful answers... The cylinders we make are only used in a specific application (cold forming of metal - failure other than burst is not critical in any way) There are basically no dynamic/impact loads. We have safety PRV on the pump supplied with the cylinders, so it should...
  4. geirkvaale

    Design/Safety Factors for Hydraulic Cylinders

    Hi, Hope somebody can help me with this. What safety factors are most common for hydraulic cylinders? Especially for Europe, so refference to an EN standard would be great. So far I have just found the following factors to use: Pressure test at 1,5 times rated pressure (ISO 10100) Yield...
  5. geirkvaale

    A333 Grade 6 Vs. A106 Grade B

    thread725-287736 Ref. earlier discussed question: Can A333 always be used to replace A106? I have almost the same question: Does steel A333 Grade 6 always satisfy the requirements for A106 Grade B? We do all testing for our products on A106 Grade B pipes and with this assume that results...
  6. geirkvaale

    Definition of "gasket seating surface" (ASME PCC-1 Appendix D)

    Of course... :) Thanks a lot for your help! I om only used to working with sheet gaskets, and they basically cover the entire RF - that is what confused me... Didn't think about spiral-wound gaskets. Anyway, thanks again!
  7. geirkvaale

    Low Temp Elongation Properties for Titanium (Grade 2)

    Hi, I am looking for the low temp elongation properties for Titanium (Grade 2 - unalloyed - "comercially pure") In room temp the mimimum elongation value is 20% (for seamless pipe according to ASME B861), but how does it change at lower temperatures? Anybody konws? Hope somebody can help me...
  8. geirkvaale

    Definition of "gasket seating surface" (ASME PCC-1 Appendix D)

    Hi, Are there anybody out there who knows the technical definition of this term? "gasket seating surface" (gray region marked in Fig D-2 in attachment) It appears from the figure to be about half of the raised face area, but I cannot find anything written in PCC-1 to back up that assumption...
  9. geirkvaale

    AISI 316 ok for Subsea Hose Clamp?

    Thanks for your answer strider6! Anybody knows about hose clamps made in these kinds of steels / titanium / CuNi or other materials suited for subsea applications? I have googled a lot but can only find worm-gear titanium hose clamps. I need a a T-bolt type... Or could an option be anodic...
  10. geirkvaale

    AISI 316 ok for Subsea Hose Clamp?

    Hi, I want to use a standard hose clamp (attached example) for a subsea application. (Permanent installation, about 20 years life time). Problem is, the only corrosion resistant steel I can find for hose clamps is AISI 316. I would prefer to use a higher quality steel, like 6Mo, AL-6XN or...
  11. geirkvaale

    DIN Flange Standards (2630, 2631, 2632, 2633 etc...)

    Thaks a lot micalbrch! What you say is also the same as I have experienced. I ordered some EN flanges with designation according to EN 1092-1, but received flanges with DIN Stamps... Very confusing to learn about "DIN" flanges when you are new to it.. "Same but different" standards, different...
  12. geirkvaale

    DIN Flange Standards (2630, 2631, 2632, 2633 etc...)

    Hi, I am trying to find out a bit about the history of DIN flange standards. When was the latest revision issued? The latest I have found is March 1975... Is there no later issue? When was it withdrawn? Did ISO 7005 replace it in 1992? And then EN 1092 in 2001? The withdrawn DIN standards are...
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