Flanged ball valve MODERN (DN 25-50 PN 1,6-4,0 МПа)


for liquid and gaseous media of groups 1 and 2, including aggressive ones. For use in explosive zones, they can be made in explosion-proof design.

Flanged ball valve 700M series – “Modern”, DN 25-50, PN 16 – 40 (1.6 – 4.0 MPa), cast housing, two-part design.
The connection to the pipeline is flanged, at the request of the customer, they can be completed with matching flanges, gaskets and fasteners.

It is recommended by the manufacturer for use on technological lines of the chemical, petrochemical and oil refining industries, thermal power plants, utilities and other industries as a shut-off device.

Features: collapsible maintainable design.

Production: ЗАО «Арматурная Компания «ФОБОС», Россия
Cost: по запросу
Working mediumLiquid and gaseous groups 1 and 2, in relation to which
the materials used are corrosion resistant
Nominal bore, mm25, 32, 40, 50
Working pressure, MPa 1,6; 2,5; 4,0
Working medium temperature
For stainless and low temperature carbon steel– 60°С…+160 °С
The tightness class of the gate according to GOST 9544-2015А
Climatic version according to GOST 15150-69U1 (-40°C…+40°C) or UHL1 (-60°C…+50°C)
Handle turning force, N150 max
Total service life, cycles8000
The full service life10

The ball valve “Modern” consists of a housing 1 and a branch pipe 2, tightened together by studs 7 and nuts 8. At the same time, the fluoroplastic seals 5 are pressed against the floating plug 3, and the ring 6 seals the joint of the housing with the branch pipe. The counter-flying spindle 4 is sealed with a fluoroplastic ring 13, and a package of fluoroplastic rings 9, compressed by disc springs 11 through a sleeve 10 and tightened by a nut 12. A rubber ring is also installed in the groove of the spindle 4. Supply of the working medium – to any of the pipes. The crane is switched manually by turning the handle 16 by 90°. Stopping in extreme positions is provided by the stop 17. The spatial position of the crane on the pipeline is arbitrary.



1Valve bodySteel 12X18N9TL,Steel 20L,Steel 20GL
2Branch pipeSteel 12X18N9TL,Steel 20L,Steel 20GL
3PlugSteel 12X18N10T
4SpindleSteel 14X17N2
5SaddleFluoroplast F4
6RingFluoroplast F4
7Stud(bolt)Steel 14H17N2,Steel 35,Steel 09G2S
8Nut boltSteel 12X18N10T, Steel 20, Steel 09G2S
9RingFluoroplast F4
10BushingSteel 114X17N2
11Poppet springSteel 60X2A
12Nut boltStainless steel
13PuckFluoroplast F4
14RingEP-503 or H-183 (Depending on the working environment)
15Nut boltCoated carbon steel
16HandleZinc coated carbon steel
17StopSteel 20X13


Шаровой кран фланцевый «Модерн» DN 25-50 PN 1,6-4,0 МПаДиаграмма стойкости фторопласта



Download (small catalog)


3D models for design:
You can download it in STEP format (use WinRAR or WinZip to unpack the archives):



NameDNPNØDD1D2LdnНL1Weight . kg3D model
FB 39 210 015 700154015956545130144721452,3


FB 39 210 020 7002040201057558150144741453,4


FB 39 210 025 7002540251158568160144811784,0


FB 39 210 032 70032403214010078180184871785,7


FB 39 210 040 700404038150110882001841262558,0


FB 39 210 050 70050405016512510223018413625510,0


FB 39 010 065 70065166518514512229018815525517,6


FB 39 010 080 70080168020016013831018816735020,5


FB 39 010 100 7001001610022018015835018817940030,0


FB 39 010 150 7001501615028524021248022827054069,0


FB 39 010 200 700*200/15016200340295242600221227054075,5




Flange versions according to GOST 33259-2015
a) – version E; b) – version F; c) – version C, L;

d) – execution D, M.



DN D2 D3  D4D5,D7 D6,D8  h1h2 
25  68 43 57    42   58243
32 78 51 65   50   66
 40 88 61 75   60   763
 50 102 73 87   72   88 

The Modern flange ball valve is a shut-off valve for lines for the transportation of gaseous and liquid media, including aggressive ones. It is recommended for installation on technological lines of industrial and energy enterprises. It is made of corrosion-resistant alloy steels with the use of polymer sealing materials.


General description

The cast housing has a collapsible two-part design with a detachable flange connection. A hollow rotary ball is installed as a locking element. The locking device is driven through a steel rod connected to an external handle. The crane cannot be used for flow control and operates only in two positions – “open-closed”. To stop the rotation of the handle, two locking stops are provided.


Main operational characteristics:

  • working medium pressure – 1.6, 2.5 or 4.0 MPa;
  • temperature from -60°C to +160°C;
  • the diameters of the conditional passage are 15-200 mm;
  • climatic version of UHL1 – from -60°C to +45 ° C;
  • estimated resource 8000 cycles;
  • the service life is at least 10 years.


The design and material of the sealing materials are selected depending on the future operating conditions and characteristics of the transported medium. The crane body can be made of steel grades 12X18N9TL, St20L or St20GL. The base sealing material is fluoroplast F4. Rotary handle made of galvanized carbon steel.



The price of a ball valve flanged “Modern” it varies depending on many factors, including pressure, diameter and material design. Additionally, the individual wishes of the customer are taken into account.

You can buy a ball valve at an affordable price in JSC “RC “Fobos” by making an application by phone 8 (800) 700-62-60 (Moscow and all Russia) or using the services of regional managers, as well as by e-mail

Delivery of ball valves is carried out by the services of transport companies – Business Lines, PEC. Transportation is also carried out by rail Zheldorexpedition and other types of delivery with payment for transport services and cargo insurance services by the buyer.

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