description
Flanged concentric butterfly valve is one type of central lined flanged type butterfly valve, which is the most common type of butterfly valve. Rubber lined butterfly valve is with the central disc and bonded liner. It is featured with a higher strength body and better pressure resistance as safely factor. Prosper Flow can manufacture the double flanged type rubber lined butterfly valve according to AWWA C504 and EN593 with flanged ends of ANSI B16.5, DIN 2501, BS 4504, GB 17241.6, JIS10K, etc.
1. FEATURES
· Bidirectional sealing, small torque
· Linear flow curve, excellent regulation
· Whether vertical or horizontal installation is OK
· Can be used as exhaust valve on the pipeline end
· Quick 90° on-off operation
· Good sealing capability, no leakage
2. TECHNICAL SPECIFICATION
· ANSI 125/150LB, PN1.0/PN1.6MPa
· Size: 2″~96″ (50~2400mm)
· Materials: A126 B (GG25), A536 65-45-12 (GGG40/50)
· Epoxy coating with thickness ≥ 250μm
· Working temperature: 0℃~+80℃
3. STANDARD
· Design & manufacturing: GB12238, AWWA C504, EN593
· Face to face: ISO 5752, AWWA C504, GB12221, EN558-1, ANSI B16.10
· Flanged ends: ANSI B16.5 ANSI 125/150; EN1092-2, DIN 2501 / BS 4504
· Top flange: ISO 5211
· Inspection & testing: API598
4. APPLICATION
· Water works, water projects
· Environment protection
· Public facilities
· Power plant
· Real estate
· Petroleum, chemical industry
· Steel work, metallurgy
· Water treatment plant
