Key Specifications/Special Features:

Series F170 butterfly valves designed to comply with MSS
SP-67, BS5155 and API 609
Compatible with GB, ANSI, DIN, BS flanges
Face to face according to ISO 5752 basic series 20 (wafer
type short)
Seat of series F170 butterfly valve is designed without back
Tongue-and-groove seat is lower torque and field replaceable O-ring is casted on the seal surface of the seat, no need for flange gaskets
One-piece thru shaft ensures dependability
Square drive disc movement
Available in sizes 1″ to 24″
Available in wafer type body
Available with handles, manual gear operators, and electric or pneumatic actuators

1. Clamping ring
 Zinc-plated steel
 Stainless steel

2. 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

3. Disc
 Ductile cast iron(nickel plated or nylon coated): ASTM A536 65-45-12, DIN 1693 GGG40, EN1563 EN-GJS-400-15, GB12227 QT450-10
Stainless steels: ASTM A351 CF8, CF8M, CF3, CF3M, EN 1.4408, 1.4469, 1.4501
 AL-bronze: ASTM B148 C95400

4. Seat
NBR, EPDM, neoprene, Viton

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

6. O-ring
 NBR, EPDM, neoprene, Viton

7. Screw
Zinc-plated steel
 Stainless steel