Cast Steel Self-Closing Drain Valve CB/T601-92 Type U

Design Standard:CB/T601-92

Test Standard: GB600

Thread Standard: CB3019

Type U- one side is with flange, another side is with thread

Type F- two sides are flange connection.

Type	Name	Nominal pressure(Mpa)	Nominal Diameter(mm)
A	flange size as per GB569	0.25	15,25,40
AS	flange size as per GB2501

Body: Bronze / Cast Steel

Seat: Bronze

Disc: Bronze

Stem: Bronze

Spring: Carbon spring steel wire

For Type A : (Flange size ad per GB569, DN15 size as per the drawing)

nominal diameter	Structure Dimension						Flange							screw end			Lift Range m	Weight (kg)
	L	L1	L2	H	H1	δ	D	D1	D2	b	f	n	d	Th.	d1	d2
25	136	183	130	168	62	6	105	73	56	12	1	4	13	M42×2	39	29	10	3.1
40	170	203	140	195	80	7	125	93	74	13	1	6	15	––	–	–	13	6.9

For Type AS (Flange size as per GB2501):

nominal diameter	Structure Dimension						Flange							screw end			Lift Range m	Weight (kg)
	L	L1	L2	H	H1	δ	D	D1	D2	b	f	n	d	Th.	d1	d2
15	130	165	120	146	46	4	80	55	40	12	2	4	11	M30×2	27	19	7	1.75
25	160	183	130	168	62	6	100	75	60	14	2	4	11	M42×2	39	29	10	3.64
40	200	203	140	195	80	7	130	100	80	16	3	4	14	––	–	–	13	6.93