Double Flanged Concentric Butterfly Valve-F4
- Industrial Use
The butterfly valves are widely used in piping of chemical, food, medicine, paper making, water and electricity, shipbuilding, water supply and drainage, metallurgy and energy systems, and is available for regulating and closure devices in a variety of corrosive, non - corrosive gas, liquid, semi-liquid and solid powder pipelines and containers.
- Performance Specification
| Nominal Diameter (DN) |
25(1")~600(24") |
25(1")~600(24") |
DN (inch) |
| Nominal Pressure (PN) |
10 |
16 |
BAR
|
| Test Pressure |
Body |
15 |
24 |
| Sealing |
11 |
17.6 |
| Working temperatureºC |
-15ºC~+150ºC |
| Applicable Mediums |
Fresh water, sewage, sea water, air, steam, food, drug, various oil, acid, alkali, salt, etc. |
Note: Applicable temperature and mediums are depending on the materials of different valve seats, bodies, stems and discs, see table 1 and table 2:
Regular Material of the Main Parts (Table 1)
| Body |
Disc |
Stem |
| Name |
Code |
Name |
Code |
Name |
Code |
| Cast Iron |
GG25 |
Electric-plated
DI |
GGG40+Ni |
Stainless Steel |
416/316 |
| Ductile Iron(DI) |
GGG40 |
AL-Bronze |
C954/C958 |
|
431/17-4 |
| AL-Bronze |
C954/C958 |
Stainless Steel |
CF8/CF8M |
|
|
| Stainless Steel |
CF8/CF8M |
Coating DI |
GGG40+Nylon |
|
|
| Carbon Steel |
WCB |
|
|
|
|
Properties of Valve Seat (Table 2)
| Seat |
Applicable TemperatureºC |
Applicable Medium |
| Name |
| HYPALON |
-15ºC~+120ºC |
Water, some kind of oil and moderate chemicals, ozone, fat, animal fat, several of solvents, high and low pressure steam are forbidden. |
| EPR |
-15ºC~+121ºC |
Ozone, strong and chemical oxidation, several of solvents, alcohol, acid and alkali, low pressure steam, air, water, heavy water, sewage, hot and cold water. |
| CR |
-15ºC~+99ºC |
Air, water, heavy water, oil, moderate chemicals, acids, ozone, fat, animal fat, several of solvents. |
| NBR |
-15ºC~+82ºC |
Water, sea water, air, gases, chemicals, alcohol, the non aromatic agent, kerosene, animal and plant oil, light grinding medium, shall not apply to phosphate series oil and extreme pressure additive oil. |
| DRC |
-10ºC~+50ºC |
Mainly suitable for semiliquid and solid powder medium, such as mud, coal slurry, cement powder, coal powder and other powder materials. |
| VITON |
-15ºC~+135ºC |
Water, sea water, sewage, alcohol, paraffin wax, oxygen, air, etc. High Chemical resistance, especially suitable for aliphatic fragrances in high temperature environment, and animal & plant oil with halogenated hydrocarbon acid. High and low pressure steam is forbidden. |
| EPDM |
X9 |
-15ºC~+150ºC |
Mainly applicable to the low pressure steam with high temperature, hot & cold water and heat pipes for disposable water treatment. |
| PTFE |
|
-18ºC~+200ºC |
Mainly applicable to strong acid, strong alkali and other corrosive medium. |
Materials:
Body:Ductile iron, cast iron, stainless steel and WCB
Disc:Stainless steel, Al-bronze and ductile iron
Shaft:Stainless steel (spline shaft without pins)
Seat:EPDM, NBR, Viton and PTFE
General design:API 609
Face-to-face:API 609 and EN 558 1 to 20 series
Flange drilling:ANSI class 125/150, class 300 and DIN PN10/16/25/40 JIS10K/16K
Actuating form:Hand lever, worm gear, electric actuator and pneumatic actuator
Size:DN25 to 1200
| Size: |
DN40-DN1200 |
| Design Standard: |
DIN API JIS |
| End flange: |
DIN 2501 PN10 / PN16 ; ASME B16.1 / B16.2 / B16.5; CLASS 125 /150 |
| Face to face: |
ISO5752 |
| Body: |
Ductile iron, Stainless Steel, Cast Steel, Cast Iron |
| Disc: |
Ductile iron, Stainless Steel, Aluminum Bronze |
| Stem: |
Stainless steel |
| Seat: |
NBR, EPDM, VITON, PTFE |
| Suitale medium: |
Sewage, Sea water, Air, Foodstuff and Oil |
| Packing: |
Plywood Wooden Cases. |
| Production Capacity: |
20000 Set/Month |
| Trademark: |
Afcon |
| Payment : |
T/T or LC |
| Inspection: |
100% testing before delivery |
Audited Supplier 
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