Cast Iron Lug Butterfly Valve Metal Seat with Worm Gear
1. Size: 50-1200DN;
2. Body: GG25/GGG40 /SS;
3. Dise: GGG40/SS304/SS316;
4. Certification: ISO, CE, SGS;
5. Easy and fast installation, making cost minimized;
6. Environment friendly, non-toxic, good looking.
Brief introduction of Lug type butterfly valve
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. Characteristic of Lug type butterfly valve is to splice the rubber liner on the body, the strength more highly and the seal more reliably for the seat.
4. One-piece thru shaft ensures dependability.
5. Available in size 1"-48".
6. Available in wafer type and lug type body.
7. Available with handles, manual gear operators and electric or pneumatic actuators.
Our service:
Our low price, good quality products, and promised delivery time brought the trust of clients globally. If you are interested in our products, kindly please inform me, we are glad to prepare a quotation for your purchasing reference and quite sure our offer will extend an added advantage over to your current source of supplier. Furthermore, we are also able to process order as per your demand.
| Detailed Description of butterfly valve |
| Series: |
lug type butterfly valve to US standard |
| Design Standard: |
API609/ISO5752 |
| Size: |
DN50-DN300/2" -12" |
| 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. |
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