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GB MARINE VALVE

Marine Cast Iron Flanged Discharging Stop Valve Case GB/T1856-1993

Marine Cast Iron Flanged Discharging Stop Valve CaseGB/T1856-1993:

1.Design standard:GB/T11689.

2.End standard:GB/T2501&GB/T569.

3.End type:Flange.

4.PN:0.6/1.0Mpa.

5.DN:40mm-250mm.

6.Main material:

7.Application:Sea water piping and fresh water piping.

8.Function:Such valve cases are used for on-off duty .

Chart 1 Fundamental dimensions of type R and S:

PN Mpa	DN mm	Structure dimension/mm											Flange connection dimension /mm						Weight kg
		L1	L2	L3		L4		H	H1	B1	B2	d	D	D1	D2	b	Bolt Th.	n-d₀	Weight kg
		L1	L2	R	S	R	S	H	H1	B1	B2	d	D	D1	D2	b	Bolt Th.	n-d₀	R	S
1.0	40	110	160	380	540	210	370	283	48	95	50	13	125	93	74	16	M14	6-15	17.1	24.8
	50	120	180	420	600	230	410	315	58	100	50	15	135	103	84	16	M14	6-15	24.05	36.0
	65	130	180	440	620	230	410	345	73	120	50	15	155	123	104	15	M14	6-15	33.5	50.0
	80	140	200	480	680	260	460	390	89	130	60	17	170	138	118	15	M14	8-15	43.5	64.7
	100	170	230	570	800	290	520	430	110	150	60	17	190	158	138	15	M14	8-15	69.5	102.0
	125	200	250	650	900	310	560	490	135	160	60	17	215	183	164	15	M14	10-15	85.4	125.0
	150	230	280	740	1020	340	620	560	152	175	60	17	240	208	190	16	M14	12-15	125.0	180.5
0.6	200	280	380	940	1320	446	826	720	208	225	80	21	295	264	247	16	M14	12-15	202.0	382.0
0.6	250	400	460	1260	1720	544	1004	870	246	270	80	21	365	327	306	18	M16	14-17	294.0	553.0

Chart 2 Fundamental dimensions of type RS and SS:

PN Mpa	DN mm	Structure dimension/mm											Flange connection dimension /mm						Weight kg
		L1	L2	L3		L4		H	H1	B1	B2	d	D	D1	D2	b	n-d0	Bolt Th.	Weight kg
		L1	L2	RS	SS	RS	SS	H	H1	B1	B2	d	D	D1	D2	b	n-d0	Bolt Th.	RS	SS
1.0	40	115	180	410	590	230	410	283	48	13	8	13	150	110	88	18	4-18	M16	20.5	30.0
	50	125	195	445	640	245	440	315	58	15	8	15	165	125	102	20	4-18	M16	30.0	44.3
	65	145	215	505	720	265	480	345	73	15	9	15	185	145	122	20	4-18	M16	40.0	60.0
	80	155	230	540	770	290	520	390	89	17	9	17	200	160	133	22	8-18	M16	52.6	79.0
	100	175	270	620	890	330	600	430	110	17	10	17	220	180	158	24	8-18	M16	81.05	120.0
	125	200	290	690	980	350	640	490	135	17	10	17	250	210	184	26	8-18	M16	102.6	150.8
	150	225	325	775	1100	385	710	560	152	17	11	17	285	240	212	26	8-22	M20	146.8	212.8
0.6	200	275	380	930	1310	470	850	720	208	21	13	21	320	280	258	22	8-22	M16	223.2	413.9
0.6	250	325	435	1080	1520	535	970	870	246	21	14	21	375	335	312	24	12-18	M16	308.8	575.2