AN ISO/IEC - 17025 STANDARD - NABL ACCREDITATION LABORATORY / TRAINING AND CERTIFICATION - MECH - CIVIL - ELECTRICAL & IT COURSES / A to Z LABORATORY TESTING SERVICES / INSPECTION SERVICES / ALL ENGINEERING CONTRACTORS / MORE THAN 1500 SERVICES ...

VACUUM BOX TESTING / BUBBLE LEAK TESTING SERVICES
 
 
 
  • vacuum box has been designed for the operators and to API 650/653 recommendations. Bubble leak (or vacuum box) testing is an integral part of tank inspections as required by the American Petroleum Institute (API) and other international standards associations to establish the condition of tank bottom plate welds and shell-to-bottom plate welds.
  •  
  • Bubble leak testing or vacuum box testing, is an integral part of a tank inspection process as recommended by API and other international standards to establish the condition of a tank bottom plate weld or shell to bottom plate weld.
  •  
  • The latest edition to Silverwing’s vacuum box range is the V750 which has been completely redesigned with the operator and API 650 / 653 inspection standards in mind.
  •  
  • The design incorporates a 750 mm weld inspection length, extremely rugged body, calibrated vacuum gauge and vacuum relief valve, internal LED’s to ensure correct visibility along the test weld and a new seal designed to maximise efficiency and reduce operator fatigue.
  •  
    VACUUM GAUGE AND RELIEF VALVE
     
  • The V750 has an industrial vacuum gauge rated to 30 in Hg as well as a calibrated vacuum relief valve. The use of a calibrated vacuum relief valve ensures the correct vacuum is generated as recommended by international standards.
  •  
  • The advantage of the relief valve is once the required vacuum has been generated (20 or 10 inch Hg) the relief valve opens. This maintains the required vacuum preventing too great a vacuum being generated which can damage the vacuum box and cause injury to the operator.
  •  
    ELECTRIC PUMP OR COMPRESSOR DRIVEN
     
     
  • The vacuum is generated by the use of an electric vacuum pump or by use of an integrated Air Vacuum Generator (AVG) and external compressor. Inspection companies tend to use the electric pump due to its greater flexibility while construction companies tend to use the AVG based systems.
  •  
    HIGH AND LOW VACUUM MODELS
     
  • The vacuum boxes are rated to either 20 inch Hg (10psi/0,7bar) which are recommended for in-services tanks or 10 inch Hg (5psi/0.37bar) which are recommended for new build tanks.
  •  
    V750 KEY FEATURES
     
  • lectric pump, compressor or combined versions
  • High & low vacuum variants
  • Tank bottom and shell to bottom weld inspection models
  • Field proven durability & reliability
  • Integrated LED to maintain correct light level (optional)
  • Higher productivity due to 750 mm length
  • Calibrated vacuum gauge
  • Calibrated relief valve to control vacuum
  • Increased efficiency
  •  
    V750 VACUUM BOX TESTING ADVANTAGES
     
     
  • Provides an immediate indication visual of the location of any leaks present
  • Can detect small leaks within a given area
  •  
    V750 VACUUM BOX TESTING LIMITATIONS
     
  • Size and orientation of any leaks will have to be analyzed with a secondary NDT method
  •  
  • For standard testing surface temperature of the test material must be between 5°C and 50°C. Otherwise, a procedure effective at the temperature range must be demonstrated.
  •  
    Vacuum box testing V750 Features
     
  • Designed to API 650/653 recommendations
  • 750 mm (29.53 in) weld inspection length, improves inspection times and reduces operator fatigue
  • Integrated LED lights provide the required light intensity as specified by API and ASME inspection standards
  • Screen glare and shadows from external light sources are eliminated
  • Calibrated vacuum relief valve ensures the correct vacuum is generated, too high a vacuum can damage the vacuum box and cause injury to the operator
  • Superior build quality with robust cast aluminum body
  • Two-stage seal design to improve initial vacuum, especially on large lap welds
  • Electric vacuum pump or compressor driven
  •  
    LEAK TESTING / LEAK DETECTION SERVICES
     
     
  • We offer leak test services on a contracted basis when investment in instrumentation is not a feasible spend. We work with clients to develop test specifications and carry out leak testing at our site in Nottingham on small batches of parts, on prototypes and where the client may already have leak testing machines in-house that cannot test to specific standards that have been defined. We already have on-site most of the equipment necessary to contract leak test most common parts and we can get hold of additional equipment we might need quickly.
  •  
    Typically our Clients using our leak test services
     
  • • A requirement to leak test prototypes as parts of the R&D process.
  • • A prototype sealing system they are developing, requiring leak testing to be cared out as part of the development.
  • • Produced a small batch of parts that will not go into general production and so need one-off leak testing carrying out (Pre production parts)
  • • A requirement to leak test regular batches of small parts but do not want to commit to the expenditure of investing in their own leak test equipment.
  • • A requirement to leak tests a particular product beyond the range or standards of in-house leak test equipment.
  •  
  • We are specialists in developing bespoke leak testing solutions for a wide range of industries. Our highly experienced in-house engineering staff can develop and write test specifications and procedures to cover any critical testing requirement.
  •  
  • We have standard equipment including a full set of calibrated, traceable leak testing instrumentation (NIST, NAMAS) available for leak testing small quantity batches of parts.
  •  
  • The leak testing equipment covers an extensive range of pressures. Typically, leaks of 10 mm3.Sec-1 can be detected using air decay testing and leaks down to 1×10-8 mbar.l.sec can be traced by using helium leak testing.
  •  
  • Leak test pressures of up to 1095 bar can be developed on a bespoke service basis. Please enquire for a feasibility study on this kind of leak test service that are normally executed via helium tracer gas testing or differential pressure air decay testing, helium sniffing and spraying.
  •  
    Examples of leak test services
     
  • • Helium leak testing of fabrications
  • • Testing of high performance racing brakes, engine parts and under bonnet
  • • Medical device testing of prototypes
  • • Development of sealing for bottle closures
  • • Pressure and leak testing of machined parts
  • • Exhaust pipe leak testing in singular or small batches for specialist vintage cars
  •  
     
    list of ndt testing services in russia
     
    ultrasonic testing services in russia , radiographic testing services in russia , magnetic particle testing services in russia , penetrant testing services in russia , eddy current testing services in russia , visual testing services in russia , ultrasonic thickness measurement testing services in russia , vibration analysis services in russia , time of flight diffraction (tofd) services in russia , phased array ultrasonic testing (paut) services in russia , ndt testing services in russia , non destructive testing services in russia , ndt services in russia , ultrasonic testing services in russia , magnetic particle testing services in russia , dye penetrant testing services in russia , radiographic testing services in russia , eddy current testing services in russia , vibration analysis services in russia , paut – toft services in russia , ultrasonic thickness gauging testing services in russia , helium leak detection services in russia , rfet / nfet / pect testing services in russia , internal rotary inspection system (iris) services in russia , acoustic pulse reflectometry (apr) services in russia , positive material identification testing services in russia , magnetic flux leakage (mfl) testing services in russia , acoustic emission testing services in russia , flouresent leak detection services in russia , long range ultrasonic testing - lrut services in russia , thermography inspection services in russia , leak testing services in russia , tky joints ultrasonic testing services in russia , aws d1.1 structural steel ultrasonic testing services in russia , ndt capabilities for mechanical and civil services in russia , ultrasonic inspection services in russia , time of flight diffraction (tofd) and phased array ut services in russia , magnetic particle testing services in russia , dye penetrant testing services in russia , radiographic testing services in russia , eddy current testing services in russia , weld ability study services in russia , visual inspection and field services in russia...
     
    list of civil ndt testing services in russia
     
    civil ndt testing - non-destructive testing services in russia , concrete for bridges testing services in russia , dams civil testing services in russia ,, building civil ndt services in russia , subway civil testing services in russia , tunnel civil ndt services in russia , ultrasonic pulse velocity testing services in russia , rebound hammer testing services in russia , rebar locator services in russia , depth of concrete services in russia , half cell potential testing services in russia , carbonation testing services in russia , pile integrity testing services in russia , visual inspection and field services in russia , civil ndt - concrete testing services in russia , ultrasonic pulse velocity testing services in russia , rebound hammer testing services in russia , rebar locator services in russia , depth of concrete services in russia , half cell potential testing services in russia , carbonation testing services in russia , pile integrity testing services in russia , visual inspection and field services in russia , in-situ compressive strength testing services in russia , civil design strength services in russia , civil existing structures services in russia , construction materials testing services in russia , pile testing systems services in russia , structural monitoring systems services in russia , asphalt testing systems services in russia , pavement testing services in russia , rock and soil laboratory test systems services in russia , non-destructive tests for concrete services in russia , geotechnical & vibration monitoring systems services in russia , pavement condition monitoring services in russia , concrete and cement lab systems services in russia , civil lab testing concrete and concreting material analysis , civil laboratory testing services in russia , construction material testing services in russia , cement testing services in russia , aggregate testing services in russia , bricks testing services in russia , blocks testing services in russia , tension test on rebars testing services in russia , chemical test on rebars testing services in russia , water analysis services in russia , cube test services in russia , accelerated cube test (act) services in russia , rapid chloride test (rcpt) services in russia , concrete mix design services in russia , fly ash services in russia , slag and silica fume services in russia , self compacting concrete services in russia , temperature controlled concrete services in russia , civil ndt and concrete testing services in russia , civil ndt investigation services in russia , concrete investigation services in russia , coating thickness measurement on concrete structures services in russia , compressive strength testing services in russia , concrete mix design services in russia , bitumen mix design services in russia , core extraction testing services in russia , core sampling testing services in russia , concrete core testing services in russia , concrete cube testing services in russia , chemical analysis services in russia , electrical resistivity testing services in russia , ground penetrating radar survey services in russia , sieve analysis services in russia , ultrasonic low frequency testing services in russia , upv testing services in russia , vibration analysis of building services in russia , leak testing services in russia , ct scan on conctete services in russia , element analysis on concrete services in russia , impact echo testing services in russia , linear polarization testing services in russia , load testing services in russia , permeability testing services in russia , petrography of concrete services in russia , pullout testing services in russia , cut and pullout testing (cpo test) services in russia , impulse response test services in russia , impact echo test services in russia , ground penetrating radar (gpr) services in russia , crack depth measurement services in russia , reinforcement location and corrosion assessments services in russia , reinforcement location by ground penetrating radar (gpr) services in russia , cover assessment services in russia , half cell potential tests services in russia , resistivity tests services in russia , corrosion rate assessment services in russia , carbonation test services in russia , repair quality assessment services in russia , bond test services in russia , anchor rebar pull out strength services in russia , chemical testing services in russia...
     
    list of our services following cities
     
    Afghanistan | Africa | Albania | Algeria | Americas | Andorra | Angola | Anguilla | Antigua and Barbuda | Argentina | Armenia | Aruba | Asia | Australia | Australia and New Zealand | Austria | Azerbaijan | Bahamas | Bahrain | Bangladesh | Barbados | Belarus | Belgium | Belize | Benin | Bermuda | Bhutan | Bolivia (Plurinational State of) | Bosnia and Herzegovina | Botswana | Brazil | British Virgin Islands | Brunei Darussalam | Bulgaria | Burkina Faso | Burundi | Cabo Verde | Cambodia | Cameroon | Canada | Caribbean | Cayman Islands | Central African Republic | Central America | Central Asia | Chad | Chile | China, Hong Kong SAR | China, Macao Special Administrative Region | China, People's Republic of | Colombia | Comoros | Congo | Cook Islands | Costa Rica | Côte d'Ivoire | Croatia | Cuba | Curaçao | Cyprus | Czechia | Democratic People's Republic of Korea | Democratic Republic of the Congo | Denmark | Djibouti | Dominica | Dominican Republic | Eastern Africa | Eastern Asia | Eastern Europe | Ecuador | Egypt | El Salvador | Equatorial Guinea | Eritrea | Estonia | Ethiopia | Europe | Fiji | Finland | Former Czechoslovakia | Former Ethiopia | Former Netherlands Antilles | Former Sudan | Former USSR | Former Yugoslavia | France | French Polynesia | Gabon | Gambia | Georgia | Germany | Ghana | Greece | Greenland | Grenada | Guatemala | Guinea | Guinea-Bissau | Guyana | Haiti | Honduras | Hungary | Iceland | India | Indonesia | Iran, Islamic Republic of | Iraq | Ireland | Israel | Italy | Jamaica | Japan | Jordan | Kazakhstan | Kenya | Kingdom of Eswatini | Kiribati | Kosovo | Kuwait | Kyrgyzstan | Lao People's Democratic Republic | Latin America and the Caribbean | Latvia | Lebanon | Lesotho | Liberia | Libya | Liechtenstein | Lithuania | Luxembourg | Madagascar | Malawi | Malaysia | Maldives | Mali | Malta | Marshall Islands | Mauritania | Mauritius | Melanesia | Mexico | Micronesia | Micronesia (Federated States of) | Middle Africa | Monaco | Mongolia | Montenegro | Montserrat | Morocco | Mozambique | Myanmar | Namibia | Nauru | Nepal | Netherlands | New Caledonia | New Zealand | Nicaragua | Niger | Nigeria | Northern Africa | Northern America | Northern Europe | Norway | Oceania | Oman | Pakistan | Palau | Panama | Papua New Guinea | Paraguay | Peru | Philippines | Poland | Polynesia | Portugal | Puerto Rico | Qatar | Republic of Korea | Republic of Moldova | Republic of North Macedonia | Romania | Russian Federation | Rwanda | Saint Kitts and Nevis | Saint Lucia | Saint Vincent and the Grenadines | Samoa | San Marino | Sao Tome and Principe | Saudi Arabia | Senegal | Serbia | Seychelles | Sierra Leone | Singapore | Sint Maarten (Dutch part) | Slovakia | Slovenia | Solomon Islands | Somalia | South Africa | South America | South Sudan | South-Eastern Asia | Southern Africa | Southern Asia | Southern Europe | Spain | Sri Lanka | State of Palestine | Sub-Saharan Africa | Sudan | Suriname | Sweden | Switzerland | Syrian Arab Republic | Tajikistan | Thailand | Timor-Leste | Togo | Tonga | Trinidad and Tobago | Tunisia | Turkey | Turkmenistan | Turks and Caicos Islands | Tuvalu | Uganda | Ukraine | United Arab Emirates | United Kingdom of Great Britain and Northern Ireland | United Republic of Tanzania: Mainland | United Republic of Tanzania: Zanzibar | United States | Uruguay | Uzbekistan | Vanuatu | Venezuela (Bolivarian Republic of) | Viet Nam | Western Africa | Western Asia | Western Europe | World | Yemen | Yemen: Former Democratic Yemen | Yemen: Former Yemen Arab Republic | Zambia | Zimbabwe ...
     
    list of our services following city
     
    Moscow | Saint Petersburg | Novosibirsk | Yekaterinburg | Kazan | Nizhny Novgorod | Chelyabinsk | Samara | Omsk | Rostov-on-Don | Ufa | Krasnoyarsk | Voronezh | Perm | Volgograd | Krasnodar | Saratov | Tyumen | Tolyatti | Izhevsk | Barnaul | Ulyanovsk | Irkutsk | Khabarovsk | Yaroslavl | Vladivostok | Makhachkala | Tomsk | Orenburg | Kemerovo | Novokuznetsk | Ryazan | Naberezhnye Chelny | Astrakhan | Penza | Kirov | Lipetsk | Balashikha | Cheboksary | Kaliningrad | Tula | Kursk | Stavropol | Sochi | Ulan-Ude | Tver | Magnitogorsk | Ivanovo | Sevastopol | Bryansk | Belgorod | Surgut | Vladimir | Chita | Nizhny Tagil | Arkhangelsk | Simferopol | Kaluga | Smolensk | Volzhsky | Yakutsk | Saransk | Cherepovets | Kurgan | Vologda | Oryol | Podolsk | Grozny | Vladikavkaz | Tambov | Murmansk | Petrozavodsk | Nizhnevartovsk | Kostroma | Sterlitamak | Novorossiysk | Yoshkar-Ola | Khimki | Taganrog | Komsomolsk-on-Amur | Syktyvkar | Nizhnekamsk | Nalchik | Mytishchi | Shakhty | Dzerzhinsk | Engels | Orsk | Blagoveshchensk | Bratsk | Korolyov | Veliky Novgorod | Angarsk | Stary Oskol | Pskov | Lyubertsy | Yuzhno-Sakhalinsk | Biysk | Prokopyevsk | Armavir | Balakovo | Abakan | Rybinsk | Severodvinsk | Norilsk | Petropavlovsk-Kamchatsky | Krasnogorsk | Ussuriysk | Volgodonsk | Novocherkassk | Syzran | Kamensk-Uralsky | Zlatoust | Almetyevsk | Elektrostal | Kerch | Miass | Salavat | Pyatigorsk | Kopeysk | Nakhodka | Khasavyurt | Rubtsovsk | Maykop | Kolomna | Berezniki | Domodedovo | Kovrov | Odintsovo | Neftekamsk | Kislovodsk | Bataysk | Nefteyugansk | Novocheboksarsk | Serpukhov | Shchyolkovo | Derbent | Kaspiysk | Cherkessk | Novomoskovsk | Nazran | Ramenskoye | Pervouralsk | Kyzyl | Orekhovo-Zuyevo | Novy Urengoy | Obninsk | Nevinnomyssk | Dolgoprudny | Oktyabrsky | Dimitrovgrad | Yessentuki | Kamyshin | Yevpatoria | Reutov | Pushkino | Zhukovsky | Murom | Noyabrsk | Novoshakhtinsk | Seversk | Artyom | Achinsk | Berdsk | Arzamas | Noginsk | Elista | Yelets | Khanty-Mansiysk | Novokuybyshevsk | Zheleznogorsk | Sergiyev Posad | Zelenodolsk | Tobolsk | Votkinsk | Mezhdurechensk | Sarov | Serov | Mikhaylovsk | Sarapul | Leninsk-Kuznetsky | Ukhta | Voskresensk | Solikamsk | Glazov | Magadan | Gatchina | Velikiye Luki | Michurinsk | Lobnya | Kansk | Anapa | Kamensk-Shakhtinsky | Kiselyovsk | Gubkin | Buzuluk | Novotroitsk | Yeysk | Zheleznogorsk | Bugulma | Chaykovsky | Ivanteyevka | Kineshma | Yurga | Kuznetsk | Azov | Ust-Ilimsk | Novouralsk | Klin | Yalta | Ozyorsk | Kropotkin | Vidnoye | Bor | Gelendzhik | Usolye-Sibirskoye | Balashov | Chernogorsk | Vyborg | Dubna | Vsevolozhsk | Shadrinsk | Novoaltaysk | Yelabuga | Mineralnye Vody | Troitsk | Yegoryevsk | Verkhnyaya Pyshma | Chekhov | Birobidzhan | Chapayevsk | Belovo | Kirovo-Chepetsk | Dmitrov | Tuymazy | Anzhero-Sudzhensk | Feodosia | Slavyansk-na-Kubani | Minusinsk | Kstovo | Kogalym | Sosnovy Bor | Georgiyevsk | Sunzha | Stupino | Buynaksk | Zarechny | Belogorsk | Murino | Beloretsk | Naro-Fominsk | Kungur | Gorno-Altaysk | Ishim | Ishimbay | Pavlovsky Posad | Gukovo | Klintsy | Asbest | Urus-Martan | Rossosh | Donskoy | Kotlas | Volsk | Leninogorsk | Zelenogorsk | Revda | Budyonnovsk | Tuapse | Polevskoy | Sibay | Izberbash | Lysva | Borisoglebsk | Fryazino | Kumertau | Chistopol | Labinsk | Lesosibirsk | Belebey | Lytkarino | Beryozovsky | Nyagan | Prokhladny | Tikhvin | Neryungri | Krymsk | Alexandrov | Aleksin | Rzhev | Mikhaylovka | Shchyokino | Tikhoretsk | Shuya | Salsk | Pavlovo | Meleuz | Sertolovo | Dzerzhinsky | Krasnoturyinsk | Iskitim | Gudermes | Shali | Apatity | Svobodny | Severomorsk | Liski | Volzhsk | Vyksa | Gus-Khrustalny | Vorkuta | Krasnokamsk | Vyazma | Arsenyev | Snezhinsk | Zhigulyovsk | Belorechensk | Krasnokamensk | Salekhard | Timashyovsk | Kirishi | Solnechnogorsk | Cheremkhovo ...
     
    list of our services following Areas
     
    Moscow (federal city)[3] | Saint Petersburg (federal city)[4] | Novosibirsk Oblast | Sverdlovsk Oblast | Republic of Tatarstan | Nizhny Novgorod Oblast | Chelyabinsk Oblast | Samara Oblast | Omsk Oblast | Rostov Oblast | Republic of Bashkortostan | Krasnoyarsk Krai | Voronezh Oblast | Perm Krai | Volgograd Oblast | Krasnodar Krai | Saratov Oblast | Tyumen Oblast | Samara Oblast | Udmurt Republic | Altai Krai | Ulyanovsk Oblast | Irkutsk Oblast | Khabarovsk Krai | Yaroslavl Oblast | Primorsky Krai | Republic of Dagestan | Tomsk Oblast | Orenburg Oblast | Kemerovo Oblast | Kemerovo Oblast | Ryazan Oblast | Republic of Tatarstan | Astrakhan Oblast | Penza Oblast | Kirov Oblast | Lipetsk Oblast | Moscow Oblast | Chuvash Republic | Kaliningrad Oblast | Tula Oblast | Kursk Oblast | Stavropol Krai | Krasnodar Krai | Republic of Buryatia | Tver Oblast | Chelyabinsk Oblast | Ivanovo Oblast | Sevastopol (federal city) | Bryansk Oblast | Belgorod Oblast | Khanty-Mansi Autonomous Okrug-Yugra | Vladimir Oblast | Zabaykalsky Krai | Sverdlovsk Oblast | Arkhangelsk Oblast | Republic of Crimea [a] | Kaluga Oblast | Smolensk Oblast | Volgograd Oblast | Sakha (Yakutia) Republic | Republic of Mordovia | Vologda Oblast | Kurgan Oblast | Vologda Oblast | Oryol Oblast | Moscow Oblast | Chechen Republic | Republic of North Ossetia-Alania | Tambov Oblast | Murmansk Oblast | Republic of Karelia | Khanty-Mansi Autonomous Okrug-Yugra | Kostroma Oblast | Republic of Bashkortostan | Krasnodar Krai | Mari El Republic | Moscow Oblast | Rostov Oblast | Khabarovsk Krai | Komi Republic | Republic of Tatarstan | Kabardino-Balkar Republic | Moscow Oblast | Rostov Oblast | Nizhny Novgorod Oblast | Saratov Oblast | Orenburg Oblast | Amur Oblast | Irkutsk Oblast | Moscow Oblast | Novgorod Oblast | Irkutsk Oblast | Belgorod Oblast | Pskov Oblast | Moscow Oblast | Sakhalin Oblast | Altai Krai | Kemerovo Oblast | Krasnodar Krai | Saratov Oblast | Republic of Khakassia | Yaroslavl Oblast | Arkhangelsk Oblast | Krasnoyarsk Krai | Kamchatka Krai | Moscow Oblast | Primorsky Krai | Rostov Oblast | Rostov Oblast | Samara Oblast | Sverdlovsk Oblast | Chelyabinsk Oblast | Republic of Tatarstan | Moscow Oblast | Republic of Crimea [a] | Chelyabinsk Oblast | Republic of Bashkortostan | Stavropol Krai | Chelyabinsk Oblast | Primorsky Krai | Republic of Dagestan | Altai Krai | Republic of Adygea | Moscow Oblast | Perm Krai | Moscow Oblast | Vladimir Oblast | Moscow Oblast | Republic of Bashkortostan | Stavropol Krai | Rostov Oblast | Khanty-Mansi Autonomous Okrug-Yugra | Chuvash Republic | Moscow Oblast | Moscow Oblast | Republic of Dagestan | Republic of Dagestan | Karachay-Cherkess Republic | Tula Oblast | Republic of Ingushetia | Moscow Oblast | Sverdlovsk Oblast | Tuva Republic | Moscow Oblast | Yamalo-Nenets Autonomous Okrug | Kaluga Oblast | Stavropol Krai | Moscow Oblast | Republic of Bashkortostan | Ulyanovsk Oblast | Stavropol Krai | Volgograd Oblast | Republic of Crimea [a] | Moscow Oblast | Moscow Oblast | Moscow Oblast | Vladimir Oblast | Yamalo-Nenets Autonomous Okrug | Rostov Oblast | Tomsk Oblast | Primorsky Krai | Krasnoyarsk Krai | Novosibirsk Oblast | Nizhny Novgorod Oblast | Moscow Oblast | Republic of Kalmykia | Lipetsk Oblast | Khanty-Mansi Autonomous Okrug-Yugra | Samara Oblast | Kursk Oblast | Moscow Oblast | Republic of Tatarstan | Tyumen Oblast | Udmurt Republic | Kemerovo Oblast | Nizhny Novgorod Oblast | Sverdlovsk Oblast | Stavropol Krai | Udmurt Republic | Kemerovo Oblast | Komi Republic | Moscow Oblast | Perm Krai | Udmurt Republic | Magadan Oblast | Leningrad Oblast | Pskov Oblast | Tambov Oblast | Moscow Oblast | Krasnoyarsk Krai | Krasnodar Krai | Rostov Oblast | Kemerovo Oblast | Belgorod Oblast | Orenburg Oblast | Orenburg Oblast | Krasnodar Krai | Krasnoyarsk Krai | Republic of Tatarstan | Perm Krai | Moscow Oblast | Ivanovo Oblast | Kemerovo Oblast | Penza Oblast | Rostov Oblast | Irkutsk Oblast | Sverdlovsk Oblast | Moscow Oblast | Republic of Crimea [a] | Chelyabinsk Oblast | Krasnodar Krai | Moscow Oblast | Nizhny Novgorod Oblast | Krasnodar Krai | Irkutsk Oblast | Saratov Oblast | Republic of Khakassia | Leningrad Oblast | Moscow Oblast | Leningrad Oblast | Kurgan Oblast | Altai Krai | Republic of Tatarstan | Stavropol Krai | Chelyabinsk Oblast | Moscow Oblast | Sverdlovsk Oblast | Moscow Oblast | Jewish Autonomous Oblast | Samara Oblast | Kemerovo Oblast | Kirov Oblast | Moscow Oblast | Republic of Bashkortostan | Kemerovo Oblast | Republic of Crimea [a] | Krasnodar Krai | Krasnoyarsk Krai | Nizhny Novgorod Oblast | Khanty-Mansi Autonomous Okrug-Yugra | Leningrad Oblast | Stavropol Krai | Republic of Ingushetia | Moscow Oblast | Republic of Dagestan | Penza Oblast | Amur Oblast | Leningrad Oblast | Republic of Bashkortostan | Moscow Oblast | Perm Krai | Altai Republic | Tyumen Oblast | Republic of Bashkortostan | Moscow Oblast | Rostov Oblast | Bryansk Oblast | Sverdlovsk Oblast | Chechen Republic | Voronezh Oblast | Tula Oblast | Arkhangelsk Oblast | Saratov Oblast | Republic of Tatarstan | Krasnoyarsk Krai | Sverdlovsk Oblast | Stavropol Krai | Krasnodar Krai | Sverdlovsk Oblast | Republic of Bashkortostan | Republic of Dagestan | Perm Krai | Voronezh Oblast | Moscow Oblast | Republic of Bashkortostan | Republic of Tatarstan | Krasnodar Krai | Krasnoyarsk Krai | Republic of Bashkortostan | Moscow Oblast | Sverdlovsk Oblast | Khanty-Mansi Autonomous Okrug-Yugra | Kabardino-Balkar Republic | Leningrad Oblast | Sakha (Yakutia) Republic | Krasnodar Krai | Vladimir Oblast | Tula Oblast | Tver Oblast | Volgograd Oblast | Tula Oblast | Krasnodar Krai | Ivanovo Oblast | Rostov Oblast | Nizhny Novgorod Oblast | Republic of Bashkortostan | Leningrad Oblast | Moscow Oblast | Sverdlovsk Oblast | Novosibirsk Oblast | Chechen Republic | Chechen Republic | Murmansk Oblast | Amur Oblast | Murmansk Oblast | Voronezh Oblast | Mari El Republic | Nizhny Novgorod Oblast | Vladimir Oblast | Komi Republic | Perm Krai | Smolensk Oblast | Primorsky Krai | Chelyabinsk Oblast | Samara Oblast | Krasnodar Krai | Zabaykalsky Krai | Yamalo-Nenets Autonomous Okrug | Krasnodar Krai | Leningrad Oblast | Moscow Oblast | Irkutsk Oblast ...