Double Flange Double Eccentric Butterfly Valve
Double eccentric butterfly valve is further improved on the basis of single eccentric butterfly valve. Its structure is characterized in that the shaft axis deviates from both the center of the butterfly plate and the center of the body. Double eccentricity allows the valve to be opened immediately after the butterfly plate out of the seat, greatly eliminate the butterfly plate and seat unnecessary over-extrusion, scraping phenomenon, reduce the opening resistance, reduce wear, improve seat life. The scraping is greatly reduced, and the double eccentric butterfly valve can also use metal seat to improve its application in high temperature field.
Type Available: Flanged type
Inspection & Testing: API 598
Basic Design: ANSI/AWWA C504
Materials Standard: Others on request
Face to Face Dimension: BS5155 Short, ISO5752 (Series 13), DIN 3202F16
Flanged End Dimension: DIN PN10/16/25, ANSI B16.1, BS4504, ISO PN10/16, JIS B2212/2213
A216 Gr. WCB, WCC, WCA, etc
Low temperature steel
A352 Gr. LCB, LCC, LC1, etc
A217 Gr. WC6, WC9, C5, C12, C12A, etc
A351 Gr. CF8, CF8M, CF3, CF3M, CF8C, etc
CN7M alloy 20, CN3M alloy 20 modified, CT15C, etc
A995 Gr. 4A, 5A, CE8MN, CD6MN, CD3MN, etc
B148 C95500, C95600, C95800, etc
M30C, M35-1, CZ100, etc
CY40 inconel 600, etc
CW2m Hastelly C4, N12MV Hastelloy B, etc
CU5MCuC Incoloy 825, CW6MC Incoloy 625, etc
Payment & Shipment
Payment :30%T/T with order ,70% T/T before the shipment .
Package :carton case or wooden case .
Shipment : 25-45days after payment.
Shipping: by air ,by train mby sea .
Port :Ningbo,Shanghai .
1.quick delivery, high quality and reasonable price.
2. We can make products according to the needs of customers.
3. Welcome to inquiry and purchase later in the day for us.
4. Strict quality control system .welcome third party for quality checking
5.We are a factory who focus on produce valves. Adhere to
quality is our belief.
6.All valves according the drawing to produce and 100% pressure
testing, 100%material inspection.