Angus Fire Rimseal Pourers
The Angus Fire Rimseal Pourers are used for the protection of vertical Open Top Floating Roof (OTFR) storage tanks. The RFP50F is a one-piece unit incorporating a flange on the end of the foam inlet pipe. An orifice plate is supplied, which calibrates the flow rate of the unit. The orifice plate is fitted between the flange on the RPF50F, and the corresponding flange on the supply pipe.
The Angus Fire Rimseal Pourers produces expanded foam when supplied with foam solution and delivers the foam gently into the rimseal area.
The orifice plate (orifice disc) calibrates the unit with flow rates from 54 litres/minute at 4 bar to 250 litres/minute at 10 bar g. Each unit is factory-calibrated to deliver a specified flow at a given pressure within the limits shown in the graph opposite.
The Angus Fire Rimseal Pourers is a low-profile unit which protects the foam from high winds and guides it gently on to the tank wall. The front shield allows fully developed foam to emerge in a cohesive blanket that flows intact onto the inside wall of the tank. The stainless steel mesh at the foam exit helps to prevent blockage from insects and nesting birds.
For new tanks, this model can make the most cost-effective use of foam concentrate and water resources by producing the designed foam solution application rate. For retrofit onto existing tanks during refurbishment, the new Angus RFP50F can replace existing units without the need for expensive modification. Accurate factory-calibration ensures full compatibility with existing foam concentrate induction systems, and a 2” ANSI 150 flanged inlet connection.
To further simplify installation, a fitting kit consisting of two clamps is now supplied as an optional extra which facilitates installation to the tank whilst still in use and without the need for hot work.
Angus Rimseal Foam Equipment is suitable for use with Angus low expansion foam concentrates. For hydrocarbon fuels Angus FP70, Tankmaster or Petroseal should be used; but for polar solvent risks Angus Niagara or Alcoseal should be used.
The Angus Rimseal Pourer
Fires in floating roof tanks nearly always start in the rimseal area. The specially designed Angus Fire Rimseal Foam Pourer delivers foam directly into the seal area quickly controlling any fires that could develop into a full surface conflagration.
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