Lug Butterfly Valve Hard Back Seat with Electric Actuator
1. Size: DN50-500;
2. Body: Cast iron/Ductile iron/Stainless steel;
3. Dise: Ductile iron/Stainless steel;
4. Tength more highly, seal more reliably for seat;
5. Easy and fast installation, making cost minimized.
Brief introduction of lug type butterflt valve with double axis
1. Lug type butterfly valve designed to comply with MSS-SP-67, BS 5155 and API609. Compatible with GB, DIN, BS, ANSI125/150 flanges. 2. Face to face according to ISO5752.
3. The seat of double axis butterfly valve is designed in to without back, the touque-and-groove seat is lower torque and replaceable.
4. There is O-ring casted on the seal surface of the seat, negates need for flange gaskets.
5. Available in wafer type and lug type.
6. Available with handles, manual gear operators and electric or pneumatic actuators.
More information about wafer type spline butterfly valve.
Our butterfly valve conform to the international standard like GB, ANSI/API, DIN, BS as well as client's special specifications. The butterfly valves have met with warm reception based on excellent quality, good shipment and timely delivery time all over the world. Butterfly valves are widely sold in America, Germany, UK, Italy, Spin, Holland, Sweden, United Arab Emirates, Singapore etc.
| Detailed Description of butterfly valve |
| Series: |
lug type butterfly valve with double axis |
| Design Standard: |
API609/ISO5752 |
| Size: |
DN50-500 |
| Flange: |
PN6, PN10, PN16, PN25, ANSI150, ANSI125, JIS 10K, TABLE" D" , TABLE" E" |
| Face to face: |
ISO 5752 |
| Body: |
Cast Iron/Ductile Iron/Stainless Steel |
| Disc: |
Ductile Iron/Ni-plated ductile iron/Stainless steel/Al-Bronze |
| Stem: |
Zine Plated Steel/ Stainless Steel |
| Seat: |
EPDM/NBR/PTTE |
| Application: |
petroleum, chemical industry, water and electricity, foodstuff, medicament, light textile, paper making, metallurgy etc. |
| Certification: |
ISO9001: 2008, CE, SGS |
- 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.
- 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. |
If you need the below valves with good quality and most favorable price,please contact us.
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Audited Supplier 
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