Overpressure Protection
Safe-T Whistle
Flow Safe Audio Signaling Devices
The Flow Safe Safe-T Whistle (STW) is designed to provide an audible signal of a system over pressure or upset condition, at a specific pressure. It is designed to operate independently or with the Flow Safe F80 Series Safety relief Valves.
Depending upon the pressure, without the relief valve, sound levels greater than 100 dBA, typically 105-108, can be expected at 30 feet; with the valve, approximately 90dBA.
With the safety valve, whistles can be set to go off at a predetermined pressure at the factory, or easily adjusted in the field. The whistle will signal in an intermittent mode, at approximately 300 signals per minute. This minimizes product loss while at the same time providing an audible signal.
Note: This is not a safety relief valve.
Without the safety valve, the whistle can signal in a continuous mode. Whistles are of heavy-duty, high-quality brass or stainless steel construction, with a 1/2″ male NPT connection.
Safe-T Whistle
| Part Number | Material | Min/Max Pressure, psig | End Connection Size/Type | Whistle Weight, oz. |
| 01-1750-01 | Brass | 10/740 | ½” Male NPT | 12 oz. |
| 01-1750-03 | Stainless Steel | 10/1480 | ½” Male NPT | 16 oz. |
Without the safety valve, the whistle can signal in a continuous mode. Whistles are of heavy-duty, high-quality brass or stainless steel construction, with a 1/2″ male NPT connection.
PRODUCT BRAND
Flow Safe