Double Eccentric Butterfly Valve Manufacturer and Suppliers-Flowspec Luokai

Double Eccentric Butterfly Valve Descriptions

Double eccentric butterfly valve long type is one type of high performance butterfly valve, which is with eccentric action reduces torque and seat contact during operation, extending valve service life. Its seat can be repaired on site, no needing dis-assembly. The double flanged eccentric butterfly valve is suitable for 90° on-off operation and regulation service. Flowspec Luokai manufactures the double eccentric butterfly valve long type face to face according to ISO5752 series 14 with sizes of 4″~160″ (DN100~4000mm).
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1. FEATURES

Eccentric action reduces torque and seat contact during operation, extending valve service life
Suitable for 90° on-off operation and regulation service
The seat can be repaired on site, no needing dis-assembly
Epoxy coating for corrosion resistance and long service life
Good sealing capability, no leakage

3. STANDARDS

Design & manufacturing: EN593
Face to face: ISO 5752 series 14, DIN3202-F4
Flanged ends: ISO7005-2, EN1092-2, DIN2501
Top flange: ISO 5211
Inspection & testing: EN12266

2. TECHNICAL SPECIFICATIONS

PN6/PN10/PN16/PN25/PN40
Size: 4″~160″ (DN100~4000mm)
Materials: A126 B (GG25), A536 65-45-12 (GGG40), A216 WCB, S.S.304(CF8), S.S.316(CF8M), bronze C95800
Coating: fusion bonded expoxy coating min. thickness ≥250micron
Applicable medium: water, sewage, sea water, air, food, medicine, oil, low corrosive liquids
Applicable temperature: -20℃~+120℃ (higher temperature is available upon request)

4. APPLICATIONS