China Suppliers Factory DN900 PN16 DI Double Eccentric Butterfly Valve with Worm Gear - Over 60 Years Experience
Basic information
| Model NO. | D342X | Media | Water |
| Driving Mode | Manual | Connection Form | Flange |
| Structure | Double-Eccentric Sealing | Seal Form | Auto Sealed |
| Valve Stem | Normal | Work Pressure | Low Pressure (Pn<1.6mpa) |
| Working Temperature | Normal Temperature (-40°C<T<120°C) | Material of Seal Surface | Soft Sealed |
| Valve Body | Casting | Standard | API609/DIN3354/BS5155/En593 |
| Application | Industrial Usage, Water Industrial Usage, Household Usage | OEM&ODM | Customer Request |
| Factory History | 65 Production History | Operation | Worm gear |
| Size | DN900 | Pressure | Pn16 |
| Design | En593 | Flange Drilling | En1092 Pn16 |
| Face to Face | En558 13 Series | Coating | Epoxy |
| Materials | Ductile Iron | Certification | ISO/CE/BV |
| Warranty | 18 Months | Transport Package | Export 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:
- Body: Ductile Iron: ASTM A536 /GGG40
- Disc: ASTM A536/ GGG4
- 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.
- Manual, electric actuator, pneumatic actuator, hydraulic actuator, bare shaft is optional.
- Water, drinking water, portable water, Oil, sea water, gas are all available working service.
- Size is from DN150-DN3600.
Technical specification
| No | Item | Standard |
|---|---|---|
| 1 | Design and manufacturing Standard | API609/EN593/BS5155/DIN3354 |
| 2 | Pressure-Temperature Rating | PN6,PN10,PN16, Class125, Class150 |
| 3 | Structure length(Face-Face) | ASME B16.10,EN558,DIN3202,ISO5752 |
| 4 | Flange Ends | ASME B16.1 /ASME B16.47,AWWA C207,EN1092/BS4504ASME B16.1 /ASME B16.47,AWWA C207,EN1092/BS4504 |
| 5 | Inspection&Test | API598, EN12266-1 |
| 6 | Connection | Flange type |
| 7 | Fluid medium | Water, Oil, Gas and various corrosive media, drinking water, portable water, sea water |
| 8 | Operation option | Worm Gear, electric and pneumatic control device. |
| 9 | Applicable size | DN100 ~ DN3600 |
| 10 | Using temperature | -10ºC ~ 150ºC |
| 11 | Normal Pressure(Mpa) | PN1.0 ~ 2.5MPa(Class150, Class300) |
| 12 | Connection standard | ANSI·DIN·API·ISO·BS |
| 13 | Warranty | 18 months |
Main Material
| No | Part | Material | No | Part | Material |
|---|---|---|---|---|---|
| 1 | Body | DI(A536 65-45-12),GGG40,GGG50 | 2 | Disc | DI(A536 65-45-12),GGG40,GGG50/Aluminum bronze, duplex stainless steel |
| 3 | Up/ Down Shaft | Stainless Steel(304,416, 420,431) duplex stainless steel | 4 | Disc Sealing Ring | EPDM, NBR |
| 5 | Body Sealing Ring | EPDM, NBR | 6 | Taper pin | Stainless Steel(304,416,420,431) |
| 7 | Up/ Down Shaft sealing Ring | NBR | 8 | Up/Down Bushing | DF-1 |
| 9 | Disc Sealing Steel Ring | SS316 | 10 | Key | Steel |
| 11 | Packing | NBR | 12 | Yoke | DI(A536 65-45-12) |
Company profile
Introducing Tianjin Tanggu TWT Valve Co., Ltd. (TWT®), a renowned pioneer in valve technology, established in 1956 in the heart of Tianjin Binhai District, China's renowned valve production hub. Leveraging modern design principles, cutting-edge manufacturing technologies, and a state-of-the-art testing facility, TWT® specializes in the development and manufacture of valves across 1000 diverse categories.
Certification
Our Advantages
More than 60 years of valve production experience with advanced processing equipment, large testing laboratories, and sufficient raw material reserves.
FAQ
Q1: Is this a factory?
A: Yes, we are a valve manufacturer with over 60 years of experience in valve production since 1956.
Q2: Can I have a customized product?
A: Yes, we can accommodate your customized requirements for standard, size, color, packing, nameplate, mark, etc.
Q3: Do you provide samples?
A: Yes, we can provide samples, and there is no charge for freight.
Q4: What are your payment terms?
A: Our payment terms are 30% in advance and 70% balance before shipment.
Q5: Do you have testing equipment?
A: Yes, we have pressure testing equipment, large-scale laboratories, and non-destructive testing equipment.









