.::: FIVALCO :::.


	Specification Download
Wafer Silent Check Valve PN16/PN25/Class125/Class250	Fig. 5312

Working Pressure and Temperature

Working pressure PN16/PN25/Class125/Class250.
Temperature from -10℃ to 120℃
for EPDM seat O-ring.
Temperature from -10℃ to 82℃
for NBR seat O-ring.
Temperature from -10℃ to 150℃
for Viton seat O-ring.

Flange Types

EN1092-2 PN16/PN25, ANSI B16.1 Class125,
ANSI B16.2 Class250.

Materials Specifications

Part Name	Material	EN Spec.	ASTM Spec.
Body*	Cast Iron	EN-JL1040	A126 Class B
Seat	Stainless Steel	BS970 304S15	A351 CF8
Seat	Bronze	EN1982 CC491K	B62 C83600
Disc	Stainless Steel	BS970 304S15	A351 CF8
Disc	Bronze	EN1982 CC491K	B62 C83600
Spring	Stainless Steel	BS970 304S15	AISI 304
Bushing	Bronze	EN1982 CC491K	B62 C83600
Screw	Stainless Steel	BS970 304S15	AISI 304
Seat O-ring	EPDM/NBR/Viton	Commercial	Commercial

Note*: Body material is ductile iron when valve pressure rating is PN25 or Class250.

Dimensions (mm)

Size		50/2"	65/2.5"	80/3"	100/4"	125/5"	150/6"	200/8"	250/10"	300/12"	350/14"
A	ANSI 125# & 250# Flange	108	127	146	188	213	248	340	410	415	478
A	PN16 & PN25 Flange	108	127	150	167	213	248	340	410	415	478
B		67	73	80	102	118	140	165	216	286	350