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. For available sizes click here Without the safety valve the whistle can signal in a continuous mode. F84L Liquid Pressure Relief Valves Liquid service valves with carbon steel or stainless steel construction with Teflon or other type plastic seats.
Valves are ideal for all liquid relief applications including positive displacement pump service.
Standard trim of 316SS provides a high degree of corrosion resistance for a large range of lading fluids. For available sizes, click here For design details, click here F70U Unloader Valves Unloader valves suitable for continuous cycling applications, gas or liquid. Features a unique piston seal design. Ideal for batch processing where rugged, high cycle service and minimum maintenance is required. Ideal for natural gas regulator and meter protection, and positive displacement blower protection.