*Example: 4-PCFAHCADAA-03A (as shown above) is a 4" Piston Check Valve, Full Port, 316 SST Plug Hard Chrome Plated, 316 SST Seat, Inconel 718 Spring, 316 SST Body, 316 SST Retaining Ring, 300# with NPTF Threaded End Connections, Mounted in Position C

1 Size
.5, .75, 1, 1.25, 1.5, 2, 3, 4, 5, 6, 8, 10

2 Check Valve Series
PC	PC Series - Piston Check Valves
BC	BC Series - Ball Check Valves

3 Port Size
F	Full Port	R	Reduced Port

4 Plug
A	316 Stainless Steel	D	Inconel
T	Titanium	H	Hastelloy
M	Monel	Z	Zirconium
O	Other

5 Plug Coating
HC	Hard Chrome	S	Stellite
C	Colmonoy	CC	Chrome Carbide
O	Other

6 Seat
E	Teflon	A	316 Stainless Steel
D	Inconel	T	Titanium
H	Hastelloy	Z	Zirconium
O	Other

7 Springs
C	301 Stainless Steel	A	316 Stainless Steel
D	Inconel 718	H	Hastelloy
E	None

8 Body Material
A	316 Stainless Steel	H	Hastelloy
B	Carbon Steel	Z	Zirconium
D	Inconel	M	Monel
T	Titanium	O	Other

9 Retaining Ring
A	316 Stainless Steel	D	Inconel
T	Titanium	H	Hastelloy
Z	Zirconium

10 Pressure Class
01	ANSI 150#	03	ANSI 300#
06	ANSI 600#	09	ANSI 900#
15	ANSI 1500#

11 End Connections
A	NPTF Thread	E	Socket Weld End
B	R.F. Flanged	W	Wafer Body
C	Ring Joint Flanged	D	Butt Weld

12 Mounting Position
A	Position A	B	Position B
C	Position C	D	Position D
E	Position E