Flanged Butterfly Valves

At TWT, we take immense pride in our exceptional butterfly flange valves, making us a renowned manufacturer and supplier in the industry. With our specialization in valve research and development, we have solidified our position as a leading provider of industrial flanged butterfly valves.

Our butterfly flange valves are meticulously crafted with precision and expertise to cater to the diverse needs of industrial applications. We prioritize the use of high-quality materials, ensuring that our valves exhibit remarkable durability and exceptional performance. TWT’s unwavering commitment to manufacturing top-notch valves is evident in our relentless pursuit of producing reliable products that surpass the test of time.

Product Description

 

Basic Information

Driving ModeManualConnection FormFlange
StructureDouble-Eccentric SealingSeal FormAuto Sealed
Valve StemNormalWork PressureLow Pressure (Pn<1.6mpa)
Working TemperatureNormal Temperature (-40°C<T<120°C)Material of Seal SurfaceSoft Sealed
Valve BodyCastingStandardAPI609/DIN3354/BS5155/En593
ApplicationIndustrial Usage, Water Industrial Usage, Household UsageOEM&ODMCustomer Request
Factory History65 Production HistoryOperationWorm gear
SizeDN1400PressurePn16
DesignEn593Flange DrillingEn1092 Pn16
Face to FaceEn558 13 SeriesCoatingEpoxy
MaterialsDuctile IronCertificationISO/CE/BV
Warranty18 MonthesTransport PackageExport Plywood Box

 

Product Description

Nominal Diameter: DN150-DN3600
Nominal Pressure: 10Bar/16Bar/Class 150
Design Standard: API609/EN593/BS5155/DIN3354
Face to face: ASME B16.10,EN558,DIN3202,ISO5752
Flange Connection: ASME B16.1 / ASME B16.47, AWWA C207, EN1092/BS4504
Inspection and Test: EN12266-1/API 598/ISO5208
Top flange: ISO5211

Material List:

1. Body:Ductile Iron: ASTM A536 / GGG40
2. Disc: ASTM A536 / GGG40
3. Stem :Stainless Steel: ASTM A182 304/316/431 / Duplex Stainless Steel

Other Description

Installation without restriction in direction of flow.
Reduced weight and overall dimensions.
Low pressure loss and reduced energy costs.
High KV / CV values.
Easy to clean and disinfect for potable water systems etc.
Self cleaning (no residue will be trapped).
Good resistance to corrosion.
Manul , electric actuator , pneumatic actuator , hydraulic actuator , bare shaft is optional
Wate , drinking water , portable water , Oil , sea water , gas are all available working service.
Size is from DN150-DN3600

Technical Specification

NoItemStandard
1Design and manufacturing   StandardAPI609/EN593/BS5155/DIN3354
2Pressure-Temperature RatingPN6,PN10,PN16, Class125, Class150
3Structure length(Face-Face)ASME   B16.10,EN558,DIN3202,ISO5752
4Flange EndsASME   B16.1 /ASME B16.47,AWWA C207,EN1092/BS4504ASME B16.1 /ASME B16.47,AWWA   C207,EN1092/BS4504
5Inspection&TestAPI598, EN12266-1
6ConnectionFlange type
7Fluid mediumWater, Oil, Gas and various   corrosive media,drinking water ,portable water , sea water
8Operation optionWorm Gear,electric and   pneumatic control device.
9Applicable sizeDN100 ~ DN3600
10Using temperature-10ºC ~ 150ºC
11Normal Pressure(Mpa)PN1.0 ~   2.5MPa(Class150,Class300)
12Connection standardANSI·DIN·API·ISO·BS
13Warranty18 monthes

 

Main Material

NoPartMaterialNoPartMaterial
1BodyDI(A536 65-45-12),GGG40,GGG502DiscDI(A536   65-45-12),GGG40,GGG50/Aluminum bronze,duplex stainless steel
3Up/ Down ShaftStainless Steel(304,416,   420,431) duplex stainless steel4Disc Sealing RingEPDM, NBR
5Body Sealing RingEPDM, NBR6Taper pinStainless   Steel(304,416,420,431)
7Up/ Down Shaft sealing RingNBR8Up/Down BushingDF-1
9Disc Sealing Steel RingSS31610KeySteel
11PackingNBR12YokeDI(A536 65-45-12)

Company Profile

Our Advantages

• More than 60 years of valve production experience
• with advanced processing equipment
• large testing laboratories
• and sufficient raw material reserves

FAQ

Q1.Whether it is a factory?
A:yes, we are China’s leading valve manufacturer and supplier with more than 60 years of valve production experience since 1956
Q2.Can i have any own customized product?
A:yes you are customized requirements for standard,size,colour,packing,nameplate,mark,etc
Q3.Do you provide samples?
A:yes we can provide the samples but do not pay the charge of freight
Q4.What’s your terms of payment?
A:30% in advance 70% balance before shipment
Q5.Is there any testing equipment
A:Yes, we have pressure testing equipment, and large-scale laboratories and non-destructive testing equipment