Key Specifications/Special Features:

Series F180 butterfly valves designed to comply with MSS SP-67, BS5155 and API 609.Compatible with  ANSI, DIN, BS, JIS flanges. Characteristic of series F180 butterfly valve is to splice the rubber liner on the body, the strength more highly and the seal more reliably for the seat. There is O-ring casted on
the seal surface of the seat, no need for flange gaskets.
Available in size 1½″ to 24″.
Available in wafer type, lug type and U-section wafer type body.
Available with handles, manual gear operators, and electric or pneumatic actuators.

Materials
1. Body:
Cast iron: ASTM A126CL. B , DIN1691 GG25, EN 1561 EN-GJL-200; GB12226 HT200
Ductile cast iron: ASTM A536 65-45-12, DIN 1693 GGG40, EN1563 EN-GJS-400-15, GB12227 QT450-10

2. Stem:
Zinc plated steel
Stainless steel: ASTM A276 type 316, type 410, type 420 ASTM A582 type 416

3. Taper pin:
Stainless steel: ASTM A276 Type 304, type 316 EN 1.4501

4. Disc:
Ductile cast iron (nickel plated): ASTM A536 65-45-12 DIN 1693 GGG40 EN-1563 EN-GJS-400-15,
Stainless steel: ASTM A351 CF8, CF8M CF3, CF3M EN 1.4408, 1.4469 1.4501

5.Liner
NBR, EPDM, Neoprene, Viton

6. O-ring
NBR, EPDM, neoprene, Viton

7. Bushing
PTFE, nylon, lubricated bronze

8. Key
Carbon steel