Check Valve

Size mm (inch)	Class-150			Class-300			Class-600
	A	B	(Wt 1)	A	B	(Wt 1)	A	B	(Wt 1)
	A	B	(Wt 1)	A	B	(Wt 1)	A	B	FE	BWE
50	203	115	11.5	267	120	18	292	138	25	21
(2)	(8.0)	(4.5)	(25)	(10.5)	(4.7)	(40)	(11.5)	(5.4)	(55)	(46)
65	216	120	23	292	132	33	330	145	40	30
(21/2)	(8.5)	(4.7)	(51)	(11.5)	(5.2)	(73)	(13.0)	(5.7)	(88)	(66)
80	241	135	28	318	150	47	356	165	48	35
(3)	(9.5)	(5.3)	(62)	(12.5)	(5.9)	(104)	(14.0)	(6.5)	(106)	(77)
100	292	150	51	356	170	62	432	190	85	59
(4)	(11.5)	(5.9)	(112)	(14.0)	(6.7)	(137)	(17.0)	(7.5)	(187)	(130)
125	330	170	61	400	210	95	508	220	131	95
(5)	(13.0)	(6.7)	(135)	(15.7)	(8.3)	(209)	(20.0)	(8.7)	(289)	(209)
150	356	195	80	444	210	120	559	255	172	108
(6)	(14.0)	(7.7)	(176)	(17.5)	(8.3)	(265)	(22.0)	(10.0)	(379)	(238)
200	495	220	120	533	255	181	660	300	295	202
(8)	(19.5)	(8.7)	(265)	(21.0)	(10.0)	(399)	(26.0)	(26.0)	(650)	(650)
250	622	260	218	622	305	325	787	335	475	365
(10)	(24.5)	(10.2)	(481)	(24.5)	(12.0)	(717)	(31.0)	(13.2)	(1047)	(805)
300	698	310	228	711	305	405	838	395	580	555
(12)	(27.5)	(12.2)	(502)	(28.0)	(13.8)	(893)	(33.0)	(15.6)	(1279)	(1224)
350	787	365	342	838	390	522	889	440	755	605
(14)	(31.0)	(14.4)	(754)	(33.0)	(15.4)	(1151)	(1960)	(970)	(1665)	(1334)
400	864	505	465	864	530	695	-	-	-	-
(16)	(34.0)	(19.9)	(1025)	(34.0)	(20.9)	(1532)	-	-	-	-
450	978	565	565	978	590	1120	-	-	-	-
(18)	(38.5)	(22.2)	(1246)	(38.5)	(23.2)	(2469)	-	-	-	-
500	978	610	1005	1016	655	1320	-	-	-	-
(20)	(38.5)	(24.0)	(2216)	(40.0)	(25.8)	(2910)	-	-	-	-
600	1295	740	1455	1346	790	1865	-	-	-	-
(24)	(51.0)	(29.1)	(3208)	(53.0)	(31.1)	(4112)	-	-	-	-

Body/Cover / Hinge / bracket	ASTM A216 Gr. WCB, A217 Gr. WC6/WC9/C12A, A352 Gr. LCB,A351 Gr. CF8/CF8M/CF3/CF3M
Disc / Seat Ring	ASTM A216 Gr. WCB, A351 Gr. CF8/CF8M/CF3/CF3M
Gasket	Spiral Wound 316 / 316L Graphite filled
Stud/ Nut	ASTM A193 Gr. B7/B16/B8/B8M/A194 Gr. 2H/7/8/8M

Pressure rating 2	Class 150	Class 300	Class 600
Hyd. Shell	30 (435)	77 (1117)	155 (2248)
Seat	22 (319)	57 (827)	113 (1639)
Min. Seat	5.5 (80)	14 (203)	28 (406)