JIS MARINE 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.

5. Specification(mm)