Chemicial Tanker High Velocity Relief Valve

Chemicial Tanker High Velocity Relief Valve

1. Application

Chemicial Tanker High Velocity Relief Valve allows your oil tanker and chemical tanker to breathe in and out within specified vacuum and pressure levels, relieving both pressure and vacuum build ups with superior sealing performance.

2. Material

valve body: cast

valve seat: 0Cr18Ni9  SUS304

flame screen: 00Cr17Ni14Mo2  SUS316L

remarks: the materials mentioned before are basic materials, ship-owners can choose better materials, such as SUS304, SUS304L, SUS316L.

3. Nominal Size & Pressure

diameter：DN50—DN250

pressure: (1) oil tanker:-3.5Kpa—14Kpa; (2) chemicial tanker: -3.5Kpa—20Kpa.

4. Features

(1). Adjustable outside opening and closing pressure without exhausting vapor gas.

(2). Full lifting and high flow capacity.

(3). Clearly visible vacuum disc operation.

Serial No.	DN	D2	D1	D	L	H	Flange Hole
1	50	90	110	140	255	485	4xφ14
2	65	110	130	160	255	485	4xφ14
3	80	128	150	190	285	535	4xφ18
4	100	148	170	210	285	565	4xφ18
5	125	178	200	240	380	665	8xφ18
6	150	202	225	265	385	710	8xφ18
7	200	268	295	340	455	850	8xφ18
8	250	320	350	395	460	860	12xφ22

6. IACS Certificate: ABS, CCS, BV, LR, RINA

7. Chemicial Tanker High Velocity Relief Valve in factory: