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GB MARINE VALVE

Marine Cast Iron Flanged Suction Stop Check Valve Case GB/T1855-1993

Marine Cast Iron Flanged Suction Stop Check Valve Case GB/T1855-1993:

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 and preventing refluence.

Chart 1 Fundamental dimensions of type R and S:

PN/ Mpa	DN/ mm		Structure dimension/mm										Flange connection dimension											Weight/ kg
	DN/ mm		L₁	L₂	L₃		L₄		H	B₁	B₂	d	Inlet DN1					Outlet DN2					Bolt Th.	Weight/ kg
	DN1	DN2	L₁	L₂	R	S	R	S	H	B₁	B₂	d	D	D₁	D₂	b₁	n₁-d₁	D₃	D₄	D₅	b₂	n₂-d₂	Bolt Th.	R	S
1.0	40	50	110	160	380	540	210	370	236	95	50	13	125	93	74	15	6-15	135	103	84	16	6-15	M14	16.1	24.4
	50	65	120	180	420	600	230	410	256	100	50	15	135	103	84	15	6-15	155	123	104	15	6-15	M14	25.2	36.0
	65	80	130	180	440	620	230	410	277	120	50	15	155	123	104	15	6-15	170	138	118	15	8-15	M14	33.0	48.7
	80	100	140	200	480	680	260	460	304	130	60	17	170	138	118	15	8-15	190	158	138	15	8-15	M14	40.3	60.2
	100	125	170	230	570	800	290	520	325	150	60	17	190	158	138	15	8-15	215	183	164	15	10-15	M14	58.8	91.0
	125	150	200	250	650	900	310	560	366	160	60	17	215	183	164	16	10-15	240	208	190	16	12-15	M14	72.8	108.6
	150	200	230	280	740	1020	340	620	416	175	60	17	240	208	190	16	12-15	295	264	247	16	12-15	M14	105.7	151.6
0.6	200	250	280	380	940	1320	446	826	543	225	80	21	295	264	247	16	12-15	365	327	306	18	14-17	M14	211.0	318.1
0.6	250	300	400	460	1260	1720	544	1004	623	270	80	21	365	327	306	18	14-17	430	386	360	19	14-21	M16	305.2	461.5

Chart 2 Fundamental dimensions of type RS and SS:

PN/ Mpa	DN/ mm		Structure dimension/mm										Flange connection dimension											Weight/ kg
	DN/ mm		L₁	L₂	L₃		L₄		H	B₁	B₂	d	Inlet DN1					Outlet DN2					Bolt Th.	Weight/ kg
	DN1	DN2	L₁	L₂	RS	SS	RS	SS	H	B₁	B₂	d	D	D₁	D₂	b₁	n₁-d₁	D₃	D₄	D₅	b₂	n₂-d₂	Bolt Th.	RS	SS
1.0	40	50	115	180	410	590	230	410	236	105	50	13	150	110	88	18	4-18	165	125	102	20	4-18	M16	20.6	30.0
	50	65	125	195	445	650	245	440	256	115	50	15	165	125	102	20	4-18	185	145	122	20	4-18	M16	31.2	44.7