Hello, the IFU in Russian language is enough since you are not a Russian manufacturer to mark the nameplate/label in Russian as well. Kind regards

Hello, please clarify the product type and/or the applicable EU directive (if any) and/or the product standard (EN, DIN, IEC, GOST, etc.). Kind regards

Hello,
the Poverka certification can be done when the instruments are on site in Russia.
Kind regards

Dear Sir!
The Poverka can be mandatory (see chapter 8 of OIML D 3) or voluntary, in this case it's normally called calibration.
The mandatory Poverka is required for legal measurement instruments (see chapter 2.5 of OIML D 1) and its periodicity is specified in the Pattern Approval certificate. In case of the voluntary Poverka or Calibration, the information on such requirements should be specified in the instrument user's manual.
Considering the above mentioned, if the "Instruments that are used for monitoring the mechanical status of a machinery (for predictive maintenance) and are part of the mechanical equipment (fans, pumps, compressors...). For example, vibration and temperature of bearings" are the measuring instruments (see chapter 3.1.4 of OIML D 1:2012) they can be subject to the mandatory or voluntary Poverka (Calibration).
Kind regards

Hello,
if you mean Pipeline Valves the answer is NO.
If "no" then why: THE PIPELINE VALVES ARE NOT A MEASUREMENT INSTRUMENTS.
Kind regards

Hello, in your case the import permit and/or any special labelling are not required.
We also inform you that according to Article 7, point 5, of the Russian Federal Law of 13.03.2006 No. 38-FZ "Law on Advertising" it is prohibited to advertise goods subject to state registration which have not been registered. Kind regards

Hello, the Mandatory periodic verification certificate (terms and definitions according to the chapter 9 of OIML D 3:1979  / aka "Poverka certificate") in the Russian Federation can be issued only by the metrological laboratories accredited within the Russian National Accreditation System (Decree of the Ministry of Industry and Trade of the Russian Federation No. 1815 of 02.07.2015). Kind regards

Hello, the SPDS is the acronym in Russian language of a family of standards which in English stands for "System of design documents for construction". Kind regards.

Hello!
For the definition of term Legal Metrology, please refer to the Section 2.5 of OIML D 1:2012. Regarding the areas, covered by the Legal Metrology in the Russian Federation, see the Article 1, Clause 3, of the Federal Law No. 102-FZ of 26.06.2008.
Kind regards

Hello, as for the Primary Verification Certificate, please refer to the Chapter II, Article 5, of the OIML D 3:1979. As for how it happens in Russia, please refer to the Decree of Ministry of Industry and Trade of the Russian Federation No. 1815 of 02.07.2015. Kind regards