About Series
ALSO RS Series Steel Ball Valves with an all-welded body are designed for water in external and internal heating networks at a carrier temperature of up to 200 °C. They are used as well for installation on pipelines and structures on them, transporting non-aggressive natural gas, liquefied hydrocarbons, oil products and other liquid and gaseous media, in relation to which the valve materials are corrosion resistant.The range of ALSO RS 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:
Cold resistant execution – body made of low-alloy steel, for use in temperature range from -60 to +200 °С
Corrosion-resistant execution – body made of corrosion-resistant steel, for use in temperature range from -60 to +200 °С
Construction of ALSO RS Series ball valve
Materials of main parts
|
No. |
Part |
Specification of materials by executions |
|
|
02 cold resistant |
03 corrosion-resistant |
||
|
1 |
handle |
st. 3 (carbon steel) |
st. 3 (carbon steel) |
|
2 |
nut bolt |
galvanized steel |
galvanized steel |
|
3 |
sealing ring |
fluorosiloxane |
fluorosiloxane |
|
4 |
ring |
F4К20 (PTFE +20% С) |
F4К20 (PTFE +20% С) |
|
5 |
rod |
AISI 420 |
AISI 321 |
|
6 |
spring |
st. 65G (galvanized spring steel) |
- |
|
7 |
support ring |
AISI 409 |
AISI 409 |
|
8 |
seat seal |
fluorosiloxane |
fluorosiloxane |
|
9 |
seat |
F4К20 (PTFE +20% С) |
F4К20 (PTFE +20% С) |
|
10 |
ball |
DN 10-32: AISI 420 |
AISI 321 |
|
DN 40, 65: AISI 304 |
|||
|
DN 50, 80-300: AISI 409 |
|||
|
DN 350-600: AISI 321 |
|||
|
11 |
neck |
st. 09G2S (low-alloy steel) |
AISI 321 (corrosion-resistant steel) |
|
12 |
body |
st. 09G2S (low-alloy steel) |
AISI 321 (corrosion-resistant steel) |
|
13 |
branch pipe |
st. 09G2S (low-alloy steel) |
AISI 321 (corrosion-resistant steel) |
RS Series overview
|
|
DN15-600
|
PN16-40
|
||
|
DN10-600
|
PN16-40
|
|||
|
|
DN15-600
|
PN16-40
|
||
|
DN15-600
|
PN16-40
|
|||
|
|
DN15-100
|
PN25-40
|
||
|
DN10-80
|
PN25-40
|
|||
|
|
DN15-600
|
PN16-40
|
||
|
DN10-600
|
PN16-40
|
Special design
|
|
DN15-200
|
PN16-40
|
Ball valves for underground installation
|
|
DN25-600
|
PN25-40
|
||
|
DN25-600
|
PN25-40
|
|||
|
|
DN40-250
|
PN25-40
|
||
|
DN32-200
|
PN25-40
|
