CN401 Spring Check Valve
	NO. Component Material 1 Body Brass & Zinc 2 Spring Stainless Steel 3 Piston PVC or Brass 4 Spring PVC 5 Seal Gasket NBR 6 Bonnet Brass & Zinc

	/mm			/g
G	D	L	H	APPROX.Wb	APPROX.Wz	BOX/CTN
1/2"	33.5	12.5	48.5	120	120	20/200
3/4"	41	13.5	51.5	180	170	15/150
1"	46	14.5	59.5	250	240	10/100
11/4"	56	15	67.5	360	340	8/64
11/2"	64	17.5	72	490	530	5/40
2"	82	21.5	87.5	890	680	4/32
21/2"	94	22	95	1420		4/24
3"	114	23.5	99	1950		2/12
4"	144.5	25	111.5	3000		1/8