Pneumatically actuated ball valves (DN 10-200 PN 1.6-10.0 MPa)


as shut-off devices with remote control and are designed to automate the control of technological processes in many industries.

Pneumatically actuated ball valves FB39 are intended to be fitted as automated devices in the process lines chemical and oil-refining plants, at pulp-and-paper mills and other production facilities using fluid, gaseous as well as corrosive working media. Standard industrial and explosion-proof versions are available. Distinctive features of these valves are reliability and mean time to failure.

Production: ЗАО «Арматурная Компания «ФОБОС», Россия
Cost: по запросу
Working medium Media where the valve material is corrosion-resistant
Nominal bore, mm1,6; 2,5; 4,0; 6,3; 10,0
Working medium temperature
For stainless and low temperature carbon steel– 60°С…+160 °С
For carbon steel– 40°С…+160 °С
The tightness class of the gate according to GOST 9544-2015А
Climatic version according to GOST 15150-69U1 (-40°С … +40°С)
UHL (-60°С … +50°С)
Handle turning force, N150 max
Connection to the pipelineflanged, coupler-joined
Total service life, cycles8000
The full service life10
Management methodmanual

The valve consists of the following principal components: the body (1), the caps (2), the ball (3), and the stem (4). The valve body (1) and the ball (3) are sealed with ball seats (5) and joint gaskets (7) compressed by the bolting of the caps by stud bolts (12). The stem (5) is sealed with stem packing (8) and stem seal (9). The pneumatic actuator consists of the housing and two pistons, which are seated at the ends of the rack. The ratchet latch planted on the shaft meshes with the rack. When supplying compressed air into the actuator housing the pistons turn the ratchet latch and the shaft. The torque passes on the stem by the adaptor, and the latter turns the ball. The top of the pneumatic actuator accommodates the electro pneumatic regulator. The valve can be mounted on the pipeline in any attitude position required.


Download (small catalog)


DesignationMaterials used in various valve versions
Basic version-02-03
1Valve bodySteel 321H (X12CrNiTi 18 9)Steel 1023 (C 22)cold-resistant steel
2Branch pipe
3Valve ballSteel 321H (X12CrNiTi 18 9)
4Valve stemSteel 431Т
5Ball seatPTFE
6Joint gasketSteel 321H (X12CrNiTi 18 9)
8Stem packing
9Stem seal
10Stem nutSteel 321H (X12CrNiTi 18 9)
11Thrust washerSteel 321H (X12CrNiTi 18 9)
12Stud boltSteel 1023 (C 22)X13Steel 35cold-resistant steel
13AdaptorSteel 321H (X12CrNiTi 18 9)Steel 1023 (C 22)


Fluoroplast resistance diagram

10NZH634P, 10S634P1, 10NZH634P1, 10S634P3, 10NZH634P2, 10S634P5

The dimensions and standard size of the drive are conditional, because they are specified for a two-way drive, PN16 and a compressed air pressure of 5.6 bar. For other PN and compressed air pressures other than 5.6 bar, as well as for a single-acting drive, the dimensions and size of the drive will differ. Also, pneumatic actuators can be equipped with a manual doubler, a pneumatic distributor, a filter reducer, a positioner, shaft position sensors, which leads to significant differences in design and dimensions from those indicated in the figure. In addition to flanged valves, pneumatic drive can be equipped with coupling and welded cranes, the dimensions of which are indicated in the relevant sections of the catalog.

When ordering, it is mandatory to fill out a questionnaire,
after which the overall and connecting dimensions are specified for a specific order





* reduced bore


The ball valve with pneumatic drive belongs to the category of remotely controlled shut-off and control valves. It is widely used in automated process control systems of industrial enterprises. An important feature of the design is the presence of a pneumatic drive. It is able to create a significant force on the rotary rod with more precise and smooth regulation.


General description

Structurally, the valve with a pneumatic actuator of the FB39.012 series is an inter-flange locking device, which includes two clamping nozzles and a pneumatic actuator. Main assembly parts:

  • steel body;
  • locking plug (ball);
  • rotary spindle (stem);
  • two welded, coupling or flange connections;
  • 4 tightening studs with nuts;
  • sealing elements made of fluoroplast;
  • pneumatic actuator with a square mounting flange.


The outer metal surface of all the constituent elements is painted with polymer paint on the ground.


The case has 3 versions depending on the steel grade used:

  • stainless 12X18H10T;
  • carbon steel St20;
  • frost-resistant 09G2S.

Rotary spindle made of 14X17N2T alloy.


Features of ordering

When submitting an application for the purchase of a ball valve with a pneumatic actuator, it is necessary to fill out a questionnaire in which it is indicated:

  • diameter of the conditional passage of the valve;
  • operating pressure and temperature;
  • type of pipes;
  • drive characteristics;
  • the need to supply additional equipment.

The questionnaire form is provided on the website. Additional information by phone.



The price of a ball valve with a pneumatic actuator varies depending on many factors, including the design of pressure, diameter and material. Additionally, the individual wishes of the customer are taken into account.

You can buy a ball valve at a low 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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