Flow Switches for Turbulent Flow

Flow Switches for Violent Flows

PEECO perforated and shrouded paddles are used on Flow Switches for Turbulent Flow.

The Pivoted Connection with special paddle is ideal for violent flows or heavy paddles.  We utilize a pivot at the base of the switch, with the stem and paddle hanging on this pivot.  Above the pivot, the stem ends in a socket which operates a ball attached to the upper stem.  This construction can be used for flow and reverse flow applications.  For over 24″ stem extensions, this design is mandatory.  It cannot be used in small tees.  The paddle can be a solid or hollow cylinder, perforated, bar paddle, or another special design.

PEECO Flow Switch
Model EP-S Shown

Available on our Series N Flow Switch – these units are furnished with a slip-on steel cover.  This .062 thick housing is NEMA 4X weather proof, by utilizing a special “O” ring seal fitted into a mechanical groove in the body; a standard on all of the non-explosion proof models. The housing & cover are both made of heat treated aluminum T-356 and are epoxy coated (for extra protection). Each of the four basic styles shown are adaptable to many other fittings and configurations.

Available on our Series E Flow Switch – All explosion proof models are rugged, heavy duty units exceeding all UL Code requirements. Each of the four basic styles are adaptable to many other fittings and configurations. Utilizing 1/4″ thick Heat treated aluminum cover (shown at right) with 5 fully engaged threads, these units are designed to encapsulate any internal explosion. All explosion proof models meet Class 1, Group D requirements for use in hazardous locations; all NEMA classifications available. The housing & cover are both made of heat treated aluminum T-356 and are epoxy coated (for extra protection). Other classes and groups are available. Conduit outlet: 1/2″ NPT on all models; 3/4″ and metric sizing available.

Available on our Series H Flow Switch – Utilizing ¼” thick Heat Treated aluminum cover with 5 fully engaged threads, all units are designed to encapsulate any internal explosion. In lieu of a bellows assembly a solid rod extends through a flexure tube brazed or welded into a S.S. ball fixture. Unit has been successfully field tested up to 10,000psi. Wall thickness of the flexure tube will vary with pressure requirements. This model is recommended for all pressures over 600 psi. Each of the four basic styles shown are adaptable to many other fittings and configurations.

Related page – see Dash Pot option

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