Foam chamber (KNP) "Vega"

Description

The Vega low expansion foam chamber (KNP) with PS type foam pourer is a technical device designed to produce low-expansion foam from 1%, 3% and 6% premix (depending on the type of foam concentrate) and to apply it for firefighting purposes to oil and oil products storage tanks.

Purpose and scope

Vega KNP and foam pourer (PS) are used as part of stationary fire extinguishing installations for applying low-expansion film forming foam from above to the surface of oil or oil product. The following installations are equipped with KNP and PS:

• Vertical steel tanks with a fixed roof (RVS);
• Vertical steel tanks with a fixed roof and a pontoon (RVSP);
• Vertical steel tanks with a floating roof (RVSPK);
• Reinforced concrete tanks (GBR).

Distinctive advantages

• The Vega KNP design provides the application of low-expansion foam in the form of a wide fan, enabling faster coverage of the protected area with foam;
• A sealing element is provided between the Vega KNP body and the foam pourer, which during operation eliminates the release of oil and oil products vapors from the tanks into the chamber body and piping of the fire extinguishing system;
• The Vega KNP is adapted for safe maintenance and testing of a foam fire extinguishing installation without supplying foam to the tank. For that end, an easily removable lid and a set of test assemblies are provided to supply foam to the outside of the tank without dismantling it (delivered on request for testing at one of the tanks);
• The Vega KNP and the PS in the basic version are a single design (built-in PS). If necessary, the Vega KNP and PS can be manufactured as separate products;
• The use of a triple mixing chamber, the accepted ratios of the diameters of the mixing chambers, expansion chambers, and the characteristics of the foam pourers provide an optimal volumetric coefficient of air suction in wide pressure ranges;
• The design of the Vega KNP provides for the possibility of vertical and horizontal installation.

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The Vega KNP with PS foam pourer (RVS)

The Vega KNP with PS foam pourer (RVSP)

The Vega KNP with PS foam pourer (RVSPK)

Note

Items made to order:

• The Vega KNP with the PS (U) foam pourer, which can be used on different types of tanks, providing a point (not fan) application of low-expansion film-forming foam;
• The PS with the Vega KNP in the form of independent structures with independent flange connections.

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Materials of manufacture

Climatic version U, HL, UHL, Т, ОМ: housing of the Vega KNP with the PS is stainless steel, nozzles are made of brass.

Key Specifications

* Depending on the type of foam concentrate and the water quality.

Flow and pressure graphs

To compare two graphs, select both values.

Select pressure: --- 0,5 MPa 0,6 MPa 0,7 MPa 0,8 MPa 0,9 MPa 1,0 MPa

Select pressure: --- 0,5 MPa 0,6 MPa 0,7 MPa 0,8 MPa 0,9 MPa 1,0 MPa

Show all values

Q-H chart for KNP Vega with nominal pressure 0,5 MPa

Q-H chart for KNP Vega with nominal pressure 0,6 MPa

Q-H chart for KNP Vega with nominal pressure 0,7 MPa

Q-H chart for KNP Vega with nominal pressure 0,8 MPa

Q-H chart for KNP Vega with nominal pressure 0,9 MPa

Q-H chart for KNP Vega with nominal pressure 1,0 MPa

Types of fastenings to the Vega KNP piping with PS (RVS, RVSP, RVSPK, U)

Installation of the Vega KNP to the solution supply piping as standard is provided for on the following types of flange connections:

• The Vega KNP-5 – 80-16-01-1 GOST 33259-2015;
• The Vega KNP-10 – 80-16-01-1 GOST 33259-2015;
• The Vega KNP-15 – 80-16-01-1 GOST 33259-2015 (by order 100-16-01-1 GOST 33259-2015);
• The Vega KNP-20 – 100-16-01-1 GOST 33259-2015;
• The Vega KNP-25 – 100-16-01-1 GOST 33259-2015;
• The Vega KNP-30 – 100-16-01-1 GOST 33259-2015.

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