Marine Cast Steel Pneumatic Quick Closing Valve

Marine Cast Steel Pneumatic Quick Closing Valve:

China Marine Cast Steel Pneumatic Quick Closing Valve:

Marine Cast Steel Pneumatic Quick Closing Valve is air-actuated, and also can be controlled by the rope, used as the emergency shut-off valve for marine fresh water, fuel oil, lubrication oil pipe system. It also can be opened/closed by the handwheel as the stop valve. When in emergency, it can be closed by hand on the spot, or remotely.

Technical Specification:

Design Standard: GB/T5744-2008

Test Standard: GB600

Nominal Pressure: 0.6Mpa~2.5Mpa

Flange Standard: GB2501

Working Pressure of Cylinder: 0.3~0.7Mpa

Main Parts & Material:

Body-Cast Steel

Bonnet-Cast Steel

Disc-Carbon Steel

Stem-Stainless Steel

Piston-Brass

Air Cylinder---Stainless Steel

Main Size(mm):

Nominal Size	Structural Size					Handwheel	Lift Range	Flange													Cylinder Volume
Nominal Size	L		H		L0	Handwheel	Lift Range	b	PN6			PN10			PN16			PN25			Cylinder Volume
DN	Type A	Type B	Type A	Type B	L0	Do	m	b	D	D1	n-d	D	D1	n-d	D	D1	n-d	D	D1	n-d	L
15	130	90	205	220	198	80	8	14	80	55	4-11	95	65	4-14	95	65	4-14	95	65	4-14	0.075
20	150	95	210	220	198	80	8	16	90	65	4-11	105	75	4-14	105	75	4-14	105	75	4-14
25	160	100	230	220	198	80	9	16	100	75	4-11	115	85	4-14	115	85	4-14	115	85	4-14
32	180	105	230	220	198	100	9	18	120	90	4-14	140	100	4-18	140	100	4-18	140	100	4-18
40	200	115	260	265	235	120	13	18	130	100	4-14	150	110	4-18	150	110	4-18	150	110	4-18
50	230	125	290	265	240	140	16	20	140	110	4-14	165	125	4-18	165	125	4-18	165	125	4-18	0.166
65	290	145	315	290	245	140	19	22	160	130	4-14	185	145	8-18	185	145	8-18	185	145	8-18
80	310	155	330	300	245	160	23	22	190	150	4-18	200	160	8-18	200	160	8-18	200	160	8-18
100	350	175	385	335	245	180	30	22	210	170	4-18	220	280	8-18	220	280	8-18	235	190	8-22
125	400	200	442	365	255	180	40	22	240	200	8-18	250	215	8-22	250	215	8-22	270	220	8-26
150	480	225	485	400	260	200	44	24	265	225	8-18	285	240	8-22	285	240	8-22	300	250	8-26
200	600	275	605	510	280	320	64	24	320	280	8-18	340	295	8-22	340	295	12-22	360	310	12-26