Tank Safety Equipment

Pressure & Vacuum Relief Vents

Pressure and vacuum conservation vents are employed where it is necessary or desirable to reduce evaporation of tank contents to the atmosphere. These vents are used for liquid storage applications in the chemical, petroleum, refining, renewable fuels, pulp and paper and power generation industries. Protectoseal vents feature a patented FEP film diaphragm and a low-leak pallet design and all vents are leak tested prior to despatch from the factory. Conforms to European ATEX Directive 94/9/EC and available in various configurations, materials and sizes. Clamp-on steam jackets are also available for standard vents.

Emergency Pressure Relief Vents

Emergency relief vents are used on tanks and provide a means of venting under extreme cases like tank exposure to fire. Venting requirements for fire far exceed the normal venting requirements. Conforms to European ATEX Directive 94/9/EC and available in various configurations, materials and sizes.

Tank Blanketing Valves

Tank blanketing valves provide an effective means of preventing and controlling explosions in flammable liquid storage tanks. Blanketing valves introduce an inert gas like nitrogen into the tank that forms an inert blanket above the tank contents to prevent explosive mixtures or to prevent contamination of the stored product. Blanketing valves are used on tanks with flammable or high purity liquids. Conforms to European ATEX Directive 94/9/EC and available with various options.

Liquid Level Indicators & Specialty Tank Fittings

Protectoseal Series Nos. 40000/41000 liquid level indicators are used for accurate liquid level gauging of fixed roof tanks storing oil, water, solvents and other products. Ask us about available Protectoseal tank fittings.

Protectoseal Flame Arresters

Flame Arresters

Protectoseal deflagration and detonation arresters can provide an effective means against flame propagation into storage tanks and inside pipelines containing hazardous and flammable vapours, if applied correctly. The Protectoseal range includes end-of-line deflagration arresters through to unstable detonation arresters suitable for short-time burning. Arresters can be supplied in compliance with the stringent USCG specification or to ISO 16852.

Typical Applications:

Deflagration Arresters

Based on the installation position there are two types Deflagration Arresters:

In-line Deflagration Flame Arresters prevent the propagation of flames in the piping systems by locating the arrester in close proximity to the potential source of ignition. It ensures that any flame or explosion is confined to the immediate area.

End-of-line Deflagration Flame Arresters are designed to protect against atmospheric deflagration where the ignition source originates outside of the system.

Series:

Deflagration Arresters Type	Series	Size	NEC group	Temperature range
End-of-line	EHB	up to 24”	D (IEC group llA)	up to 150°C
End-of-line	ESA	up to 24”	C (IEC group llB)	up to 150°C
In-line	LCA	up to 12”	D (IEC group llA	up to 160°C
	LEA	up to 16”	D (IEC group llA)	up to 160°C
	LEB	up to 4”	C (IEC group llB)	up to 160°C

Detonation Arresters

The Protectoseal In-line Unstable Detonation Arresters are designed to prevent the propagation of gas or vapour explosions in pipelines under the most severe conditions of unstable detonation, stable detonation and deflagration. This type of arrester is specified for use in pipeline systems where the distance between the source of ignition and the flame is significant and/or where detonations are possible.

The in-line detonation flame arresters are specifically designed for pipelines that are manifolded or with a significant distance between the ignition source and the flame arrester, or for use where the pipe is rough, bent or obstructed. It can be placed any distance from the ignition source.

Detonation Arresters Type	Series	Size	NEC group	Temperature range
In-line	UCA	up to 18”	D (IEC group llA)	up to 150°C

Flame arrester/breather valve - FAB

The Protectoseal FAB Valve Series serves as both a Pressure/Vacuum Conservation Vent plus a Deflagration Flame Arrester.

The conservation vent provides protection against excessive pressure/vacuum and minimizes vapor loss.
The flame arrester provides additional protection against atmospheric deflagration.