Head & Seat Types

Head Types — U.S. Seal Mfg.

Type A

Type B

Type C

Type D

Type E

Type J

Type K

Type N

Type Q

Type R

Type S

Type T

Type U

Type V

Seat Types — U.S. Seal Mfg.

2

1

3

5

8

20

11

17

14

Type V

Type V

25

27

28

30

9

Material Code

The Material Code is a five character code such as "BCFZF" which is defined by the following parameters. The first character specifies the Elastomer type, the second character specifies the Washer type, etc.

ELASTOMERS

B. Buna

N. Neoprene

Q. EPR

V. Viton®

AFLAS®

WASHERS

METAL PARTS

SEATS

SPRINGS

A. Bronze

C. Carbon

H. Glass Filled TFE

L. Silicon Carbide

M. Molded Plastic

S. Tooled Steel

W. Micarta®

Z. Tungsten Carbide

D. Brass

F. Stainless Steel

E. Monel®

P. Plated Steel

J. Ceramic

K. Ni-Resist

G. Case Iron

L. Silicon Carbide

F. Stainless Steel

E. Monel®

Z. Tungsten Carbide

S. Tooled Steel

P. Plated Steel

Viton® is a registered trademark of DuPont Dow Elastomers LLC.

U.S. Seal Mfg. is a trademark of U.S. Seal Mfg.