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Fire Pump Flow Testing

How to Specify

Capacity Curves, 1/2” & 3/4”

Capacity Curves, 1” & 1 1/4”

Capacity Curves 1 1/2” & 2”

Capacity Curves 2 1/2” & 3”

Capacity Curves 4” & 5”

Capacity Curves 6” & 8”

Capacity Curves 10” & 12”

Capacity Curves 14” & 16”

Capacity Curves 18” & 20”

Capacity Curves 24” & 30”

Installation Instructions

Series V-1 Bronze Threaded Venturi, 1/2”-3”

Series V-5 Steel Welded or Flanged Venturi, 2 1/2 “ -10”

Series V-3 Fabricated Steel Welded or Flanged 12”-30”

Meter Styles and Selection

Temperature Correction Factors

Media Conversion Factors

Typical Specification

Hyspan Venturi Flow
Measurement Systems

The basic element of Hyspan Venturi Flow Measuring Systems (formally Barco Venturi Flow Measuring Systems) is based on the well established engineering principle, Bernoulli’s Theorem, which establishes the relationship of pressure differences with velocity changes. The venturi is a maintenance free, economical and accurate method of flow measurement withthe minimum system pressure loss.

Venturi systems are used for flow measurement and balancing of facility heating and cooling systems, scientific research, and fire pump flow testing. Hyspan venturis are available in nominal pipe sizes ” through 24” with a wide variety of accessories including direct reading meters, portable master meters and special fittings. For increased accuracy, flow calibration services are available.


Hyspan Barco Venturi

Catalog 5000A pdf 9.1 MB
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Series V1 Venturi

Bulletin 5100 Cover

Bulletin 5100 pdf 15 MB
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