JIS MARINE VALVE

1. Application

Marine cast steel high velocity relief valve is generally used in the relief system of the oil tanker and chemical tanker. 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 deck.

2. Material

valve body: cast steel

valve seat: stainless steel 0Cr18Ni9  SUS304

flame screen: stainless steel 00Cr17Ni14Mo2  SU316L

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 to 14Kpa; (2) chemical tanker: -3.5Kpa to 20Kpa.

4. Features:

(1). No peak pressure over opening pressure.

(2). Full lifting and high flow capacity.

(3). High quality.

5. Specification(mm)