SIZE TYPE PRESSURE
RATING
BODY/DISC MATERIAL
Suffix ASTM Grade Category

2″

21/2″

3″

4″

5″

6″

8″

10″

12″

14″

16″

18″

20″

24″

30″

36″

CI-Cast Iron

CSR-Cast Steel, Rubber Seat

CSM-Cast Steel, Metal Seat

SSR-Stainless Steel, Rubber Seat

SSM-Stainless Steel, Metal Seat

12-125#

15-150#

30-300#

60-600#

90-900#

150-1500#

250-2500#

W – WCB

A – A126-B

F – CF8M

CN – CN7M

C8 – CF8

C3 – CF3

CC- CF8-C

CT – CF8-T

D – CD4MCu

CM – CF3M

G8- CG8M

G3 – CG3M

HM – N12MV

CW – CW12MW

CY – CY40

L – LCC

M1 – M35-1

M2 – M35-2

M3 – M35-H

CZ – CZ100

CK – CK3M CuN

01- Cast Steel

02- Cast Iron

03- 316

04- Alloy 20

05- 304

06- 304L

07- 347

08- 321

09- Duplex-SS

10- 316L

11- 317

12- 317L

13- Hastelloy B

14- Hastelloy C

15- Inconel

16- LCC

17- Monel

18- Monel

19- Monel

20- Nickel

21- 254SMO

SEAT SPRING OPTIONS Examples

M-Metal

B-Buna

E-EPDM

V-Viton

T-Teflon

1-Inconel X-750

2-316

3-Monel

4-Hastelloy C

5-Alloy 20

RTJ – End Connection

LUG – Lugged Body

FE – Flanged Body

NACE – NACE

To order a 4″ 600# RTJ SS metal-seated

Wafer Check valve with Inconel X-750

spring and 304 SS disc, use FIG. Number

4SSM60W05M1RTJ

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