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CB MARINE VALVE

Marine Oil Tank Breather Valve CB/T692-1994

Marine Oil Tank Breather Valve CB/T692-1994:

1.Design standard:CB/T692-1994.

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

3.End type:Flange.

4.PN:

Pressure valve:PN≤0.021Mpa;
Vacuum valve:PN＜-0.007Mpa.

5.DN:80/100mm,100/150mm.

6.Main material:

Body/Bonnet:HT200/ZG230-450;
Seat:SS410/BC6;
Stem:SS410/BRASS;
Disc:SS410/BC6.

7.Application:Oil cabin ventilation pressured vacuum pipes.

8.Function:Such valves are used for pressure balance.

9.Fundamental dimensions of Marine Oil Tank Breather Valve CB/T692-1994

Chart 1 Fundamental dimensions of type A:

DN mm	Face to face		Oil tank flange				Outlet flange				Weight/kg
DN mm	L/mm	L1/mm	D1/mm	C1/mm	n₁/mm	d₁/mm	D2/mm	C2/mm	n₂/mm	d2/mm	Iron	Steel
80/100	260	135	190	158	4	18	190	170	4	18	25.7	23.26
100/150	300	140	210	170	4	18	240	225	8	18	38.32	35.54

Chart 2 Fundamental dimensions of type AS:

DN mm	Face to face		Oil tank flange				Outlet flange				Weight/kg
DN mm	L/mm	L1/mm	D1/mm	C1/mm	n₁/mm	d₁/mm	D2/mm	C2/mm	n₂/mm	d₂/mm	Iron	Steel
80/100	260	135	190	158	4	18	210	170	4	18	29.97	28.86
100/150	300	140	210	170	4	18	265	225	8	20	44.86	43.05

Chart 3 Fundamental dimensions of type B:

DN mm	Face to face		Oil tank flange				Outlet flange				Weight/kg
DN mm	L/mm	L1/mm	D1/mm	C1/mm	n₁/mm	d₁/mm	D2/mm	C2/mm	n₂/mm	d₂/mm	Iron	Steel
80/100	380	220	170	138	8	15	190	158	8	15	25.7	50.1
100/150	500	304	190	158	8	15	240	208	12	15	38.32	81.96

Chart 4 Fundamental dimensions of type BS:

DN mm	Face to face		Oil tank flange				Outlet flange				Weight/kg
DN mm	L/mm	L1/mm	D1/mm	C1/mm	n₁/mm	d₁/mm	D2/mm	C2/mm	n₂/mm	d₂/mm	Iron	Steel
80/100	380	220	190	158	4	18	210	170	4	18	58.28	28.86
100/150	500	304	210	170	4	18	265	225	8	20	93.92	43.05