About Series
ALSO GAS Series Steel Ball Valves with an all-welded body are used for installation on pipelines of gas distribution and consumption systems of natural gas, liquefied hydrocarbons and other liquid and gaseous media, in relation to which the valve materials are corrosion resistant.The range of ALSO GAS Series Ball Valves includes products with nominal diameters (DN) from 10 to 600 mm, designed for nominal pressure (PN) from 1.6 to 4.0 MPa.
Variants of execution:
Common execution – body made of carbon steel, for use in temperature range from -40 to +80 °С
Cold resistant execution – body made of low-alloy steel, for use in temperature range from -60 to +80 °С
Corrosion-resistant execution – body made of corrosion-resistant steel, for use in temperature range from -60 to +80 °С
Construction of ALSO GAS Series ball valve
Materials of main parts
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No. |
Part |
Specification of materials by executions |
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|
01 common execution |
02 cold resistant |
03 corrosion-resistant |
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|
1 |
handle |
st. 3 (carbon steel) |
st. 3 (carbon steel) |
st. 3 (carbon steel) |
|
2 |
nut bolt |
galvanized steel |
galvanized steel |
galvanized steel |
|
3 |
sealing ring |
fluorosiloxane |
fluorosiloxane |
fluorosiloxane |
|
4 |
ring |
F4К20 (PTFE +20% С) |
F4К20 (PTFE +20% С) |
F4К20 (PTFE +20% С) |
|
5 |
rod |
AISI 420 |
AISI 420 |
AISI 321 |
|
6 |
spring |
st. 65G (galvanized spring steel) |
st. 65G (galvanized spring steel) |
- |
|
7 |
support ring |
AISI 409 |
AISI 409 |
AISI 409 |
|
8 |
seat seal |
fluorosiloxane |
fluorosiloxane |
fluorosiloxane |
|
9 |
seat |
F4К20 (PTFE +20% С) |
F4К20 (PTFE +20% С) |
F4К20 (PTFE +20% С) |
|
10 |
ball |
DN 10-32: AISI 420 |
DN 10-32: AISI 420 |
AISI 321 |
|
DN 40, 65: AISI 304 |
DN 40, 65: AISI 304 |
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DN 50, 80-300: AISI 409 |
DN 50, 80-300: AISI 409 |
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DN 350-600: AISI 321 |
DN 350-600: AISI 321 |
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|
11 |
neck |
st. 20 (carbon steel) |
st. 09G2S (low-alloy steel) |
AISI 321 (corrosion-resistant steel) |
|
12 |
body |
st. 20 (carbon steel) |
st. 09G2S (low-alloy steel) |
AISI 321 (corrosion-resistant steel) |
|
13 |
branch pipe |
st. 20 (carbon steel) |
st. 09G2S (low-alloy steel) |
AISI 321 (corrosion-resistant steel) |
GAS Series overview
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DN15-600
|
PN16-40
|
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DN10-600
|
PN16-40
|
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DN15-600
|
PN16-40
|
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DN15-600
|
PN16-40
|
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DN15-100
|
PN25-40
|
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DN10-80
|
PN25-40
|
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DN15-600
|
PN16-40
|
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DN10-600
|
PN16-40
|
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DN50-150
|
PN25-40
|
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DN50-100
|
PN25-40
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Special design
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DN50-100
|
PN16-40
|
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DN125-200
|
PN16-25
|
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DN50-200
|
PN16-40
|
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DN15-65
|
PN25-40
|
Isolating ball valves
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DN15-300
|
PN16
|
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DN15-300
|
PN16
|
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DN20-50
|
PN16
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Ball valves for underground installation
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DN25-600
|
PN25-40
|
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DN25-600
|
PN25-40
|
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DN40-250
|
PN25-40
|
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DN32-200
|
PN25-40
|
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DN25-600
|
PN12-16
|
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DN25-600
|
PN12-16
|
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DN100-600
|
PN25
|
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|
DN80-600
|
PN25
|
Download brochure about ALSO GAS Series ball valves