Products > Chemical Process Equipment: Vessel Specialties

Blanketing

Vessel Specialties, Pad-Depad Blanketing. The term PAD (tank blanketing) is the process of replacing the vapor of a storage tank with an inert gas. The term DEPAD (vapor recovery) is the process of relieving or venting the vapor space in the event of a pressure rise. A pad-depad valve is a self-contained, pilot-operated vlve that maintains a blanket of inert gas on top of a stored product to protect it from atmospheric contamination. This reduces combustibility, decreases vaporization, controls vapor space pressure during in and out pumping operations, and helps to prevent the tank from entering a vacuum condition causing it to collapse.

Things to Consider When Purchasing This Product:

Pad: Body size, Temperature capabilities for materials of construction, Maximum operating inlet pressure, Maximum main valve inlet pressure, Minimum main valve inlet pressure, Pressure registration; Depad: Body sizes, Temperature capabilities for materials of construction; Weights; Accessories: Gauges, purge meters, pressure switches, and check valves