CST Flow Sensors (Brass Tee)

Flowrates as low as 11 L/M, Maximum Pressure Rating 1723 kpa

The initial offering will be a cast brass 1 1/2 inch sensor— Model FSI-B15-001 which has an operating measurement range of 0.5 fps – 15 fps, equivalent to approximately 3 gpm to 90 GPM in 1 1/2 inch Type L copper tubing.

​FSI flow sensors are designed specifically for irrigation measurement and control applications using metallic piping systems. The tee and retaining nut are cast and machined domestically using a lead free bronze alloy. Pipe connections are FIPT threads. The working pressure rating of this flow sensor series is 250 psi. The B Series brass tee type sensors utilize the same flow sensor insert used in all other CST FSI Series sensors. The standard (001) two-wire flow sensor output is a digital square wave proportional to flow. The sensor signal is compatible with all manufacturers’ irrigation controllers that are designed to receive flow inputs. The flow signal may be transmitted up to 2,000 feet without amplification using a shielded twisted pair cable.

Features designed into the brass tee type sensor include:

Wide flow measurement range beginning at low velocity

• No significant pressure drop
• Proven moisture resistant construction for wet environments or underground installations
• Simple installation – mounting tee uses common pipe threads – sensor design positions impeller correctly in the flow path
• Easy to service — single large retaining nut holds the sensor insert in the housing

Flow Sensors (Brass) Data Sheet

Flow Sensors (Brass) Installation Detail

Flow Sensors (Brass) Installation Guide