.

Ductile Iron

BF Series Rubber Seated

Sizes: 2" - 48"

Body: Ductile Iron

Disc: Ductile Iron Nickle Plated, Ductile Iron Nylon 11, CF8M Stainless Steel, Aluminum Bronze

Stem: 416 S.S. Heat Treated

Resilient Seat: EPDM, NBR, VITON with vulcanization/ back-up

Actuation Options: Worm Gear, Lever, Pneumatic, Electric

Pressure Ratings:2"– 12" 230psi,14"– 48" 150psi

Design and Manufacture Conform to EN 593、 API609

Flange dimensions Conform to EN 1092-2 PN10

Face to Face dimensions Conform to EN558-1

Topwork's dimensions Conform to ISO5211

Testing Conform to API598、EN12266-1

MATERIALS OF PARTS

Number

Part Name

Material

1

Body

ASTM A536 65-45-12/ASTM A126 B

2

Long bushing

PTFE

3

Shaft

SS410/SS304

4

Seat

NBR/EPDM/VITON

5

Disc

DI+NI,CF8/CF8M,C954/C958

6

Taper pins

SS416/SS316

7

Short bushing

PTFE

8

O-ring

NBR/EPDM

9

Key

STEEL



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