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Butterfly valve zBUT Fig. 494

Przepustnica 494

Material: Nodular cast iron

Nominal pressure: 16 bar

Nominal diameter: 50-200 mm

Temperature range: 0...+110°C

Working position: Any

Application

Industrial water

Industrial water

Steering

Bare shaft

Bare shaft

Manual operation

Manual operation

Electric actuator

Electric actuator

Electric actuator

Hydraulic / pneumatic actuator

Electric actuator

Auger gear

Features

  • high tightness
  • seat materials EPDM/NBR
  • central disc bearing
  • environment-friendly
  • easy to install

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Sealing

APPLICATION MATERIAL
TEMPERATURE RANGE:
DESIGNATION

ISO 1629

water, sea water, weak acids and basis Ethylene Propylene – 40°C + 110 °C EPDM
Heating without Steam Water Ethylene Propylene high temperature + 80 °C + 130 °C EPDM
Nourishing products Nitrile Hydroganated – 10 °C + 90 °C NBR
Abrasive powder products Flucast AB / P – 10 °C + 90 °C
Oxygenated solvents Ketones Esters with abrasion Flucast AB / E – 20 °C + 95 °C
Mineral or vegetable Oils  and greases Abrasives Flucast AB / N – 10 °C + 100 °C
Air and Hot water without steam. High and low temperatures Silicone – 60 °C + 200 °C MVQ
Nourishing and milky products Food Silicone – 60 °C + 200 °C MVQ
Low pressure steam water Steam Silicone – 60 °C + 140 °C MVQ
Acids/High temperature Viton – 15 °C + 210 °C FPM
Biodiesel/ Acids, Steam water Viton-Biodiesel – 5 °C + 210 °C FPM
Oxygened Gasoline Viton GF Gasolines – 5 °C + 210 °C FPM
Water/ Diluted bases. Diluted non oxidation acids Hypalon – 25 °C + 120 °C CSM
Brine systems, low temperature and resistance to gas, oil and fuel Epichlorohydrin – 40 °C + 125 °C ECO
Sea water Neoprene – 25 °C + 80 °C CR
Low Permeability to inert gases: Nitrogen, Air, Oxygen Butyl – 10 °C + 95 °C IIR

Disc

APPLICATION MATERIAL STANDARD FEATURES
BASIC
CODE
Chemical and Nourishing products Stainless steel ASTM A 351/A351M CF 8
(equivalent AISI 304)
Very good
chemical and
corrosion resistance
1
Demineralized water. Chemical products.
Nourishing products.
Stainless steel ASTM A 351/A351M CF 8M
(equivalent AISI 316)
Very good
chemical and
corrosion resistance
5
Chemical and Nourishing products. Sea water and
demineralized water
Stainless steel ASTM A 351/A351M CF 3M
(equivalent AISI 316L)
High good
chemical and
corrosion resistance
9
Cold water/ Air Aluminium EN – AC – 44100 Moderate corrosion
resistance
2
Sea water Bronze Tin 1705 (Rg 10) dla DN < 350 Good chemical
and corrosion resistance
4
Sea water Bronze-Aluminium 1982 for DN < 350 Good chemical
and corrosion resistancet
4
Water and gas Cast steel GP 240 GH Good mechanical
resistance
6
Hot water(max 90°C), Air and Gas Nodular cast iron EN – GJS 400-15 Good machanical
stength sililar
to cast steel
3
Powdery products. Pneumatic transport. Sea water Nodular cast iron
+EPDM
EN – GJS 400-15 + EPDM Very good
abrasion resistance
7
Chemical products Duplex ASTM A 351/A351M CD4MCu
NORIDUR
Very good abresive
and corossion
resistance
8
Sea water and corrosive atmospheres Super Duplex URANUS B6
(equivalent 904L)
Very good
chemical and corrosion
resistance
10