Hello everyone
As per our project specification:
"Davits shall be tested to a safe working load 25% greater than the weight to be lifted. The safe working load shall be stamped on the davit following the test."
The contractor claims that this clause is only applicable to the top davit that is...
We are on the go of a central processing facility project.
our contractor claims that in order to match the CV of the conrol valves (as per ASME B16.34) and the manual globe valves (as per API 623) (which serves as a by-pass of the control valves and will be operated only in case of maintenance...
Hello everyone,
I got a tehcnical query from the contractor stating the following:
"At present, in Piping Material Specification, Pipes & Fittings are specified as ASTM D1785 & ASTM F491 respectively.
However, being non-pressurized underground piping, contractor understands that PVC pipes as...
Hello everyone
in our piping material specification we required the material A106-B SMLS (Impact tested) for a specified class (10 Inch and above)
our contractor proposes the use of the material A333-6 SMLS without impact testing justefying that this is a higher material and doesn't need...
Hello everyone
Based on the API 661 standard, there are 4 Plenums types.
I want to know the difference between the first two types:
a) Forced draught- Box plenum
b) Forced draught- Transition plenum
Advantages, disadvantes.
thx in advance
Hello everyone
I would like to have your help about this technical query
In our project specification, we said the following:
when required, hardness test shall be performed on.... "see page 3 of 3 in the attached file"
The contractor is proposing the following:
For P1 material weld and HAZ...
Hello everyone
I wanna your opinion about deviations made by the vendors regarding our project specification:
---------------------------------------------------------
1. SPECIFIED REQUIREMENT
Seat Material -RPTFE
1*. COMMENTS / DEVIATIONS OFFERED BY SUPPLIER
"vendor valves has offered Devlon...
Hello everyone, I received a technical clarification from the contractor about Performance Testing of Gaskets and I want your opinions:
"Dear Sir
This is regarding procurement of Spiral Wound Gaskets.( as per ASME B 16.20 2017 Edn )
We are in the process of placing Orders(Manufacturer of Spiral...
Hello everyone
In our project specification we have set the MOC for the control valve to be Die Cast Aluminium. However the vendor is suggesting "Anodized Aluminium - Low copper content (< 0.4 %)"" in-place of ""Die Cast Aluminium"
what are your thoughts
Hello everyone
Today I have received a technical query and I want your opinion about it.
Requirement of metal seated ball valve:
1) As per Clause No ..... of Piping material specification, metal seated ball valve shall be considered for operating temperature ≥ 121 Deg C.
2) As per Clause No...
Hello everyone, as per our project specification
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“Production casting (Body, Bonnet, and Cover) and forging (Body, Bonnet, and Cover) shall be examined in accordance with ASME B16.34 Paragraph 8”.
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Unquote
As per the contractor...
Hello everyone
I had a clarification from the contractor saying the following:
"This clarification is related to Produced Water Buffer Pumps
As per Process datasheet, given service requires "low shearing pump" and pump mentioned for this service is Centrifugal type.
Please note that for a...
Hello everyone
in Our project specification, we requested supplying vibration switch on each air fin cooler. so if the vibration exceed the limit set, the fan will stop. However the contractor would like to give proposal for vibration Transmitter instead of vibration switch however It is...
Hello everyone
Can anyone tell me the major differences between API 617 7th edition vs 8th edition, especially about the point of the complete unit test 'string test'.
Thx in advance
Hello everyone
With reference to our project specification “Filters shall be provide with davit and quick opening closure, if weight of the cover exceeds 25 kg or if the elements require frequent inspections”.
the contractor claimed that he understood " davit shall be provided for package...
Hello everyone
In our project specification we required API 610 centrifugal pumps for condensate.
having these parameters:
Flow 0.7-0.8(m3/h)
Suction pressure: 2.2 bar
Discharge pressure: 35.8 bar
The contractor claimed that there is no centrifugal pumps available on the market that can...
Hello everyone
as per our (client) specification All ferritic materials shall be supplied in the normalized condition.
the contractor propose the slug catcher material as "SA 537 CL.2 + SS 316L SS Clad".
SA 537 CL.2 will be quench and tempered (Q&T) as per ASME SEC II part A Ed.2017 and the...
Hello everyone.
during the bidding stage we clarified that our turbocompressors shall be subject to a string test (complete unit test).
after selecting the contractor he said the following:
1) CA specify string test and does not specify full load string test.
2) Note that as per General...
