• Marine Valve Concentric Butterfly Valve Without Ear
  • Marine Valve Concentric Butterfly Valve Without Ear

Marine Valve Concentric Butterfly Valve Without Ear

Driving Mode: Electric
Connection Form: Flange
Structure: Centre Sealing
Seal Form: Auto Sealed
Valve Stem: Normal
Work Pressure: Low Pressure (Pn<1.6mpa)
Customization:
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Basic Info.

Model NO.
BWYH-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
Size
Dn700-Dn1200
Body
Gg25/Ggg40/Wcb
Stem
Ss416/Ss431/Ss304/Ss316
Disc
Ggg40/CF8/CF8m/C954/C958
Seat
EPDM/NBR/Viton/PTFE
Transport Package
Excellent Plywood Cases
Specification
CE, SGS, ISO, API
Trademark
Afcon
Origin
Dezhou, Shandong Province
Production Capacity
5000PCS/Month

Product Description

Marine Valve Concentric Butterfly Valve Without Ear
  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 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.
 Marine Valve Concentric Butterfly Valve Without EarMarine Valve Concentric Butterfly Valve Without EarMarine Valve Concentric Butterfly Valve Without EarMarine Valve Concentric Butterfly Valve Without EarMarine Valve Concentric Butterfly Valve Without EarMarine Valve Concentric Butterfly Valve Without EarMarine Valve Concentric Butterfly Valve Without EarMarine Valve Concentric Butterfly Valve Without EarMarine Valve Concentric Butterfly Valve Without EarMarine Valve Concentric Butterfly Valve Without EarMarine Valve Concentric Butterfly Valve Without Ear

 

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Management System Certification
ISO 9001, ISO 9000, HSE