Motorised cast steel gate valve DN40 API600 for petrol oil

BODY MATERIALS:As the body is internally fully rubber lined, the body material is protected from corrosion by the medium.

Type of material

Material standard

Example for application

Ductile iron

GGG40, DIN 1693

General application

60-40-18,ASTM A536

400-18, BS 2789

Ductile iron(Heat treated)

GGG40.3 DIN 1693

Heavy applications, Cold applications, petrochemical industries, power stations, alternative for cast steel

Cast stainless steel

CF8, ASTM A351

Medicine, food, drink

CF8M, ASTM A351

Bronze

C-CuSn10Zn, DIN 1705(RG10)

Marine service

C90500, ASTM B584

LG1, BS 1400

DISC MATERIALS:As the disc is in direct contact with medium, the material should be carefully selected

Type of material

Material standard

Example for application

Ductile iron nickel plated

GGG40, DIN 1693

Air, non corrosive hot or cold water

60-40-18,ASTM A536

400-18, BS 2789

Ductile iron nylon coated

GGG40, DIN 1693

Potable water, water(max. 70°C, PH value between 4.5 and 9)

60-40-18,ASTM A536

400-18, BS 2789

400-18, BS 2789

Ductile iron, PTFE coated

GGG40, DIN 1693

Acids, alkalis, oil, water, air

60-40-18,ASTM A536

400-18, BS 2789

Cast stainless steel

CF8M, ASTM A351

Potable water, demineralized water, solvents, industrial water, not recommended for sea water, gas

Duplex stainless steel

1.4462, EN 10088

Potable water, cooling water, sea water, demineralized water, solvents, foodstuff

A181, Grade F51

Aluminum bronze

G-CuAl10Ni, DIN 1714

Sea water, potable water, gas

C99500, ASTM B148

AB2, BS 1400

Hastelloy-C

A494, CW-12MW

Phosphoric, hypochloric, acetic, formic, sulfurous

SHAFT MATERIALS:Materials for shafts are selected on the basic of disc materials

Type of material

Material standard

in combination with disc materials

Stainless steel

SS410

Stainless steel, ductile iron

High strength stainless steel

1Cr17Ni2

Stainless steel, ductile iron

ASTM A431

Stainless steel

SS316

Stainless steel, ductile iron, aluminum bronze

Aluminum bronze

CuA10Ni5Fe4, DIN 17665

Aluminum bronze

C63000, ASTM B150

Monel

NA18, BS 3076

Aluminum bronze(high pressure application)

Hastelloy C276

ASTM B574, N10276

Hastelloy-C

SEAT MATERIALS:It is essential for each individual case that the selection of the type of rubber complies with medium characteristics

Type of material

Material standard

Temp.range

Example for application

Nitrile rubber

NBR

0°C~90°C

Aliphatic hydrocarbons(fuels, low aromatic containing oils, gasses), sea water, compressed air, powders, granular, vacuum, gas supply

Ethylene-propylene rubber

EPDM

-20°C~110°C

Water in general (hot-, cold-, sea-, ozone-, swimming-, industrial-, etc). Weak acids, weak salt solutions, alcohols, ketones, sour gasses, sugar juice

Special ethylene-propylene rubber

Special EPDM

-10°C~70°C

Potable water, foodstuffs, unchlorined drinking water

Special ethylene-propylene rubber

Special EPDM

-30°C~120°C

HVAC, chilled water, food stuffs & sugar juice

Viton

Viton

0°C~200°C

Many aliphatic, aromatic and halogen hydrocarbons, hot gasses, hot water, steam, inorganic acid, alkali

Special viton

Special viton

0°C~130°C

Concentrated acids

PTFE

PTFE

10°C~155°C

Fit for acids, alkalis, oil, not fit for low temperature

NOTE:For use in fluids containing ammonia,all valve parts made from non copper containing materials.