Double Flanged Butterfly Valve Catalogue

The TWT butterfly valve in double flange configuration is meticulously engineered to deliver precise flow control and reliable leak-tight sealing. The valve’s disc is thoughtfully designed with a resilient EPDM seat, ensuring a secure closure and minimizing pressure loss. This careful disc positioning and tight sealing capability enable efficient flow regulation, preventing unintended fluid leakage. As a result, operational downtime and maintenance requirements are significantly reduced, promoting uninterrupted plant operations.

By choosing TWT’s butterfly valve double flange type, you can confidently enhance your flow control systems with a valve that offers precise regulation, leak-tight sealing, easy installation, and streamlined maintenance. TWT’s commitment to quality and customer satisfaction ensures that their butterfly valve is a reliable choice for optimizing your industrial processes.

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