JIS MARINE VALVE

1. Application

The vacuum relief valve generally used in the relief system of the oil ship and chemical ship according to the current regulations:IMO and IBC. The purpose of the high velocity valve is to provide automatic control of pressure differentials during liquid cargo ship loading, voyage, ballasting and de-ballasting without any manual operation, also, it provides auto-protection against fire and explosions on desk.

2. Material

valve body: stainless steel

valve seat: stainless steel 0Cr18Ni9  SUS304

flame screen: stainless steel 00Cr17Ni14Mo2  SUS316L

Your special material requirement can be met, such as cast steel, stainless steel 304, stainless steel 316L etc.

3. Nominal Size & Pressure

diameter: DN50—DN250

pressure: (1) oil tanker: -3.5Kpa to 14Kpa (2) chemical tanker: -3.5Kpa to 20Kpa.

4. Features

(1). Full lifting and high flow capacity.

(2). No peak pressure over opening pressure.

(3). High quality.

5. Specification(mm)