Chamber-type bladder DFS

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Creating a pressure drop when measuring the flow of liquids, gases, water vapor using the differential pressure method.

The DFS-type bladder of version 1 is installed between the end faces of flanges of version 3 under GOST 33259-2015 with the use of a rubberized asbestos fabric.
The DFS-type bladder of version 2 combines a bladder and oval sealing ring (Armco), and is installed between flanges of version 7 under GOST 33259-2015 and does not require additional sealing materials.

Structural design of the disk:

  • Standard bladders for pipelines with an internal diameter greater than or equal to 50 mm (under GOST 8.586.1 (2)); the code is "GOST";
    with a service opening (without diameter boring); the code is "B/R".
  • Online questionnaire.
Использование consumption

ДФС-type bladder

ДФС-type bladder

Key technical characteristics

Internal diameter у, mmD*, mmBladder indication
50 88 ДФС 10-50
65 110 ДФС 10-65
80 121 ДФС 10-80
100 150 ДФС 10-100
125 176 ДФС 10-125
150 204 ДФС 10-150
200 260 ДФС 10-200
250 313 ДФС 10-250
300 364 ДФС 10-300
350 422 ДФС 10-350
400 474 ДФС 10-400

* for version 1 only.

Materials contacting with an operating medium

Material of bladderMaterial code identification
Steel 12Х18Н10Т ГОСТ 5632 Б

Warranty liabilities

ParameterTerm
Warranty service life, months 12 months since their commissioning but not more than 18 months since the date of production

Contents of delivery

NameNumber
Bladder 1
Works certificate 1
Flow restrictor datasheet (ЦСМ)* 1
Bladder estimation (ЦСМ)* 1
Strength calculation 1**
Operation manual 1**
Duplicate of safety analysis 1**

*when ordering a bladder with a boring.
** per set of products.

Order designatiom

ДиафрагмаДФС 10-80Б1ГОСТ
1 2 3 4 5
  1. Name.
  2. Designation (according to the table "Main technical characteristics ").
  3. Code of materials contacting with a processing medium (according to the table "Materials contacting with a processing medium").
  4. Version (see the drawing of the "Technical characteristics" tab).
  5. Disk structural design code.

Chamber-type bladder DFS

Chamber-type bladder DFS. Used to measure the flow of liquids and gases. Compatible used with pressure sensors (pressure transducers) ЭнИ-100, ДД.
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Обработка персональных данных включает согласие с Пользовательским соглашением и Политикой конфиденциальности и Вы принимаете их условия.