The triple eccentric butterfly valve, which makes use of a metal seat, is therefore able to withstand a greater amount of pressure, compared to resilient seated butterfly valve. The seal of the eccentric disc could be either metal/Graphite multi-layer design, or fully metal-to-metal design. The multi-layer design could achieve zero leakage and simple maintenance, while the metal-to-metal design is more reliable in higher temperature and pressure. Basically speaking, triple eccentric butterfly valve is both applied in shutoff or throttling service.
Flanged butterfly valves have longer face-to-face dimensions and stronger structure, compared with wafer or lug type butterfly valves. The machining process is therefore more complicated than that of wafer or lugged butterfly valves. For butterfly valves size larger than 24", flanged end is recommended for longer service.
Features of Triple Eccentric Butterfly Valves:
Eccentric Disc Design
Multi-layer Disc Seal Standard
Fully Meal-to metal Seal Optional
Wafer Body Type, Lug Type or Flanged Type
Applicable Standards of Triple Eccentric Butterfly Valves:
A) Design & Manufacture: API 609, EN 593, MSS SP-68
B) Face to Face Dimension: API 609, EN 558
C) End Connection: ASME B16.5, EN 1092, JIS B2220
D) Test and Inspection: API 598, EN 12266
Sizes: 2" - 48" or DN50 - DN1200
Pressure Rating: Class 150 - Class 600 or PN10 - PN100
Materials of Valve Body: WCB, LCB, WC6, WC9, CF8, CF3, CF8M, CF3M, etc.
Operated by: Lever, Gear, Pneumatic, hydraulic and Electric actuator
1. We Are Factory: FYV has 3 production bases and 1 foundry which located in Wenzhou, Shanghai and Lishui city of China. The Factory Size in Square Meters: 110, 000. FYV has over 600 staff members, more than 60 technical engineers, a digital process center and more than 350 sets of various middle and large equipments. The annual sales revenue reaches above $80 million US Dollars.
2. Regional Sales: We provide specialized sales service refers to different kind of region all over the world. Each sales team member is good at the local language and well experienced to the responsible market. For example: Russian, German, Spanish, Japanese, etc.
3. Low MOQ: Our factory owns the casting company by itself. We are always ready for providing the sample and producing some small orders, in order to meet the business well.
4. OEM Accepted: We can make the products with the client's demand standard or the custom requirement.
5. Complete Service: We are always ready to hear from you, be responding to your enquiry immediately. Our trade manager is always online for you.
6. Good Quality: We have strict quality control system and amounts of testing equipments for different kind of valve, such as size, pressure, working environment etc. We are winning the market reputation with the time goes by.
7. Quick Delivery: We have the large stock for some hot products.
8. Competitive Prices: We are the manufacturing company which not only has our own manufacturing workshop, but the casting company as well. We provide the straight factory price and service to our customer.
|A216 WCB||A217 LCB||A351 CF8||A351 CF8M||A351 CF3M|
|1||Nether cover||A105||A105||A182 F304||A182 F316||A182 F316L|
|2||Bearing||A182 F6a||A182 F304||A182 F304||A182 F316||A182 F316L|
|4||Body||A216 WCB||A217 LCB||A351 CF8||A351 CF8M||A351 CF3M|
|5||Nut||A194 2H||A194 4||A194 8||A194 8M||A194 8M|
|6||Bolt||A193 B7||A193 B16||A193 B8||A193 B8M||A193 B8M|
|7||Gland||A182 F410||A182 F304||A182 F304||A182 F316||A182 F316L|
|13||Gear action||Nodular cast iron|
|14||Yoke||A216 WCB||A351 CF8|
|15||Shaft packing||Flexible graphite||PTFE|
|17||Tailpiece||A216 WCB||A217 LCB||A351 CF8||A351 CF8M||A351 CF3M|
|18||Seal seat||Flexible graphite||PTFE|
|20||Pin||A276 316||A276 316||A276 316||A276 316||A276 316|
|21||Butterfly board||A351 CF8M||A351 CF8M||A351 CF8M||A351 CF8M||A351 CF3M|
|22||Shaft||A276 316||A276 316||A276 316||A276 316||A276 316L|