Listings and approvals

The KCA ratio controller is FM Approved and/or UL Listed as part of a fire extinguishing system combining designated foam concentrates, bladder tanks and discharge devices. Approved and Listed system components can be found at www.approvalguide.com and www.database.ul.com.

• FM Approved – Low expansion foam systems (FM5130)
• UL Listed – GHXV.EX26572 (UL162)

Notice: Other international approval certificates may be available upon request.

Technical data – Construction features

• Available in 2” (DN50), 2-1/2” (DN65), 3” (DN80), 4” (DN100), 6” (DN150), 8” (DN200)
• Brass construction or nickel aluminium bronze construction for superior corrosion protection
• Horizontal or vertical installation
• Direction of flow indicator on body
• For use with fresh or salt water
• Identification tag plate

Technical data – Ordering information

1. Select the foam concentrate type in table 3.4.1 in the datasheet.
2. The minimum and maximum flow demand of the sprinkler/deluge system must be known to ensure correct selection of the ratio controller. The required minimum flow rate should be higher than the minimum flow rate shown in table 3.4.1 for the Foam Type selected in Step 1). The required higher flow rate should be lower than the maximum flow rate shown in table 3.4.1. If more than one size of ratio controller is suitable then size selection can then be based on the size of the riser or supply pipework into which the ratio controller will be installed. Note: The flow rates in the FM Approval and UL Listing sometimes differ. Please check the flow range data in table 3.4.1 according to the FM Approval or UL Listing.
3. After selecting the size, check the appropriate graph in section 7.2.1 to ensure the required flows are possible at the available system pressure. If not, it may be necessary to increase to the next pipe size. Note: Nickel aluminium bronze ratio controllers are standard for EMEA and Asia sales regions and brass is standard for the Americas. Ordering example: A ratio controller is required with a minimum flow rate of 65 GPM and maximum flow rate of 570 GPM using AFFF 3%S foam concentrate in a 3” wet system. The ordering part number is VRC089JAB in EMEA/Asia and F20152B in the Americas.

Ordering example: A ratio controller is required with a minimum flow rate of 65 GPM and maximum flow rate of 570 GPM using AFFF 3%S foam concentrate in a 3” wet system. The ordering part number is VRC089JAB in EMEA/Asia and F20152B in the Americas.