Concentric Wafer or Lug Type Ductile Iron Wafer Butterfly Valve

Model NO.
BLYH-00
Working Temperature
Normal Temperature (-40°C<T<120°C)
Material of Seal Surface
Metal Hard Sealed
Valve Body
Casting
Application
Industrial Usage, Water Industrial Usage, Household Usage
Stem
Ss416/Ss431/Ss304/Ss316
Seat
EPDM/NBR/Viton/PTFE
Disc
Ggg40/CF8/CF8m/C954/C958
Body
Gg25/Ggg40/Wcb/Ss304/Ss316
Size
Dn32-Dn1200
Transport Package
Plywood Cases
Specification
CE, SGS Certificate
Trademark
Afcon
Origin
Shandong, China
Production Capacity
3000PCS/Month
Reference Price
$ 4.50 - 90.00
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Product Description

Concentric Wafer or Lug Type Ductile Iron Wafer Butterfly Valve

Size: DN40-600

Body: GG25, GGG40,

Disc: CF8/ CF8M/ GGG40/ Al-Br

Seat: NBR/EPDM/PDFE /VITON

Color: Any color according to customer requirement

Working pressure: PN10/ 16

Flange standard: PN10/ 16/ ANSI150

Brief introduction of wafer type spline butterfly valve

1. Wafer type spline butterfly valve, designed to comply with MSS-SP-67, BS5155, and API609. Compatible with GB, DIN, BS, ANSI flanges. Face to face according to ISO 5752.

2. Characteristic of wafer type spline butterfly valve is to splice the rubber liner on the body, the strength more highly and the seal more reliably for the seat.

3. The spline is between the shaft and disc.

4. Available in size 1.5'-24'.

5. Available with handles, manual gear operators, and electric or pneumatic actuators
  1. 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.  
 
  1. 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 temperature ºC - 15 ºC ~ + 150 ºC
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 Temperature ºC  Applicable Medium
Name
HYPALON - 15 ºC ~ + 120 ºC Water, some kind of oil and moderate chemicals, ozone, fat, animal fat, several of solvents, high and low pressure steam are forbidden.
EPR - 15 ºC ~ + 121 ºC 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 - 15 ºC ~ + 99 ºC Air, water, heavy water, oil, moderate chemicals, acids, ozone, fat, animal fat, several of solvents.
NBR - 15 ºC ~ + 82 ºC 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 - 10 ºC ~ + 50 ºC Mainly suitable for semiliquid and solid powder medium, such as mud, coal slurry, cement powder, coal powder and other powder materials.
VITON - 15 ºC ~ + 135 ºC 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 - 15 ºC ~ + 150 ºC Mainly applicable to the low pressure steam with high temperature, hot & cold water and heat pipes for disposable water treatment.
PTFE   - 18 ºC ~ + 200 ºC Mainly applicable to strong acid, strong alkali and other corrosive medium.
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Butterfly Valve

PNEUTEC.IT, 2023