AST - Spherical ball
AST - Spherical ball
Hartmann Valves valves of the AST series are designed for use as high-pressure valves. With our unique and entirely metallic sealing systems they are equally suitable as reliably sealing shut-off valves for liquid as well as gaseous media with solid particle components.
Information sheet ball valves:
https://www.hartmann-valves.com/wp-content/uploads/2018/11/HARTMANN-Bohrlochkoepfe-EN1.pdf
Video: Mettalic sealing system:
https://www.youtube.com/watch?v=m0QRafwLe7E
Video: Why ball valves instead of gate valves:
https://www.youtube.com/watch?v=O8PgRii_FqU
Technical characteristics
Design according to DGRL 2014/68/EU, API 6D or API 6A
Entirely metallic sealing
0-bubble leak rate
Two- and three part housings (split body) made of forged material
Trunnion-mounted ball
Blowout-safe operating spindle
Float-mounted, self-centering seat rings with pre-tensioned spring elements
Automatic housing pressure relief
Sealing force dependent on line pressure
Double Block and Bleed (DBB)
Exchangeability of upper operating spindle seal at full line pressure
No electrostatic charge-up
Fire safe according to DIN EN ISO 10497 / API 607
Maintenance free
Optional design
Upon request we manufacture and deliver the ball valves of the AST series for you:
with Double Piston Effect (DIB)
made of special materials for extreme application areas
soft sealing
with and without drainage and ventilation connections
with purely metallically sealing drainage ball valves
as reduced bore ball valves
with special interior and exterior coatings
for underground use with a shaft extension of up to 6 meters Length
with electric, pneumatic, or electro-hydraulic drives
fail-safe close or fail-safe open
as a special design for your special application case
Manufacturing program
DGRL 2014/68/EU und API 6D: DN 25 – DN 300 (1“ – 12“) bis PN 420 (ANSI 2500) further nominal widths and pressure stages on request!API 6A: 1 13/16“ – 7 1/16“ bis API 10.000 9“ – 11“ x 10“ bis API 5.000 13 5/8“ – 16 3/4″ bis API 3.000 PSL 1 – PSL 3G Temp. Class K – Y further nominal widths and pressure stages on request!
Hartmann Valves valves of the AST series are designed for use as high-pressure valves. With our unique and entirely metallic sealing systems they are equally suitable as reliably sealing shut-off valves for liquid as well as gaseous media with solid particle components.
Information sheet ball valves:
https://www.hartmann-valves.com/wp-content/uploads/2018/11/HARTMANN-Bohrlochkoepfe-EN1.pdf
Video: Mettalic sealing system:
https://www.youtube.com/watch?v=m0QRafwLe7E
Video: Why ball valves instead of gate valves:
https://www.youtube.com/watch?v=O8PgRii_FqU
Technical characteristics
Design according to DGRL 2014/68/EU, API 6D or API 6A
Entirely metallic sealing
0-bubble leak rate
Two- and three part housings (split body) made of forged material
Trunnion-mounted ball
Blowout-safe operating spindle
Float-mounted, self-centering seat rings with pre-tensioned spring elements
Automatic housing pressure relief
Sealing force dependent on line pressure
Double Block and Bleed (DBB)
Exchangeability of upper operating spindle seal at full line pressure
No electrostatic charge-up
Fire safe according to DIN EN ISO 10497 / API 607
Maintenance free
Optional design
Upon request we manufacture and deliver the ball valves of the AST series for you:
with Double Piston Effect (DIB)
made of special materials for extreme application areas
soft sealing
with and without drainage and ventilation connections
with purely metallically sealing drainage ball valves
as reduced bore ball valves
with special interior and exterior coatings
for underground use with a shaft extension of up to 6 meters Length
with electric, pneumatic, or electro-hydraulic drives
fail-safe close or fail-safe open
as a special design for your special application case
Manufacturing program
DGRL 2014/68/EU und API 6D: DN 25 – DN 300 (1“ – 12“) bis PN 420 (ANSI 2500) further nominal widths and pressure stages on request!API 6A: 1 13/16“ – 7 1/16“ bis API 10.000 9“ – 11“ x 10“ bis API 5.000 13 5/8“ – 16 3/4″ bis API 3.000 PSL 1 – PSL 3G Temp. Class K – Y further nominal widths and pressure stages on request!
Types
Title | Ductile Iron | Denomination | Stainless Steel |
|---|
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