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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

APPLICATIONMATERIAL
TEMPERATURE RANGE:
DESIGNATION

ISO 1629

water, sea water, weak acids and basisEthylene Propylene– 40°C+ 110 °CEPDM
Heating without Steam WaterEthylene Propylene high temperature+ 80 °C+ 130 °CEPDM
Nourishing productsNitrile Hydroganated– 10 °C+ 90 °CNBR
Abrasive powder productsFlucast AB / P– 10 °C+ 90 °C
Oxygenated solvents Ketones Esters with abrasionFlucast AB / E– 20 °C+ 95 °C
Mineral or vegetable Oils  and greases AbrasivesFlucast AB / N– 10 °C+ 100 °C
Air and Hot water without steam. High and low temperaturesSilicone– 60 °C+ 200 °CMVQ
Nourishing and milky productsFood Silicone– 60 °C+ 200 °CMVQ
Low pressure steam waterSteam Silicone– 60 °C+ 140 °CMVQ
Acids/High temperatureViton– 15 °C+ 210 °CFPM
Biodiesel/ Acids, Steam waterViton-Biodiesel– 5 °C+ 210 °CFPM
Oxygened GasolineViton GF Gasolines– 5 °C+ 210 °CFPM
Water/ Diluted bases. Diluted non oxidation acidsHypalon– 25 °C+ 120 °CCSM
Brine systems, low temperature and resistance to gas, oil and fuelEpichlorohydrin– 40 °C+ 125 °CECO
Sea waterNeoprene– 25 °C+ 80 °CCR
Low Permeability to inert gases: Nitrogen, Air, OxygenButyl– 10 °C+ 95 °CIIR

Disc

APPLICATIONMATERIALSTANDARDFEATURES
BASIC
CODE
Chemical and Nourishing productsStainless steelASTM A 351/A351M CF 8
(equivalent AISI 304)
Very good
chemical and
corrosion resistance
1
Demineralized water. Chemical products.
Nourishing products.
Stainless steelASTM 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 steelASTM A 351/A351M CF 3M
(equivalent AISI 316L)
High good
chemical and
corrosion resistance
9
Cold water/ AirAluminiumEN – AC – 44100Moderate corrosion
resistance
2
Sea waterBronze Tin1705 (Rg 10) dla DN < 350Good chemical
and corrosion resistance
4
Sea waterBronze-Aluminium1982 for DN < 350Good chemical
and corrosion resistancet
4
Water and gasCast steelGP 240 GHGood mechanical
resistance
6
Hot water(max 90°C), Air and GasNodular cast ironEN – GJS 400-15Good machanical
stength sililar
to cast steel
3
Powdery products. Pneumatic transport. Sea waterNodular cast iron
+EPDM
EN – GJS 400-15 + EPDMVery good
abrasion resistance
7
Chemical productsDuplexASTM A 351/A351M CD4MCu
NORIDUR
Very good abresive
and corossion
resistance
8
Sea water and corrosive atmospheresSuper DuplexURANUS B6
(equivalent 904L)
Very good
chemical and corrosion
resistance
10