Lug Type Metal Hard-faced Butterfly Valve
Summary:
American standard butterfly valve uses 3D eccentric oblique conical valve seat seal. Butterfly plate seal is made of new metal sheet and elastic material, which is embedded on butterfly plate and matched with valve seat. The sealing surface is tightly sealed by means of butterfly plate swing pressure, so the friction resistance of the sealing surface is small. When closed, the sealing performance is reliable. When opened, the sealing surface is completely out of contact, so that the sealing surface is not damaged. American standard butterfly valve structure features exclude other types of butterfly valve opening position and can not seal the shortcomings, and can be used normally in high pressure, overcome other types of valves in high temperature due to thermal expansion and easy leakage shortcomings.
Adoption Standard:
Design standard : API609-83
Flange connection dimension: ANSI B 16.5
Structure length : ANSI B 16.10-1992
Pressure testing: API 598-82
| Main Technical Parameters |
| Nominal diameter |
DN(in) |
2"----36" |
2"----36" |
| Nominal pressure |
PN(MPa) |
150Lb |
300Lb |
| Pressure testing |
Strength testing |
3.0 |
7.5 |
| Sealing testing |
2.2 |
5.5 |
| Applicable medium |
Water, steam, oil, acid and alkali, sea water, etc |
| Working temperature |
-40ºC-+425ºC |
| Material of Main Parts |
| Parts name |
Material |
| Body |
WCB; CE8; CF8M |
| Disc |
WCB; CE8; CF8M |
| Stem |
304,316,1Cr13 |
| O-ring |
304; 316 |
| Packing |
Flexible graphite, fluoroplastics |
Outline Drawing and Appearance Dimension
American Standard Butterfly Valve 815W Series
American Standard Butterfly Valve 815L Series
American Standard Butterfly Valve 830W Series
American Standard Butterfly Valve 830L Series
Machining Process
Company Introduction:
Zhitai Valve Co., Ltd is a member of Valve Association of Longwan District, is located in Longwan Central Industrial Zone, Wenzhou City. It'a professional technology company integrated with development, manufacturing, sales, and after-sales services of valve actuators and and self-controlled valves. Presently, our main products include: pneumatic actuators, pneumatic valves and pneumatic control valves; electric actuators, electeic valves and eletric control valves; automatic control products. Our products are widely applied in natural gas, electricity, petroleum, chemical, metallurgical, construction, pharmacy, paper, printing and dying. Zhitai series actuators and valves are the best choice for automatic fluid control engineering and equipment manufacturing. We sincerely welcome customers from home and abrode to visit us for supervision, communication and cooperation. It's a great honor for us to cooperate with you.
Audited Supplier 
){kind=link}