Page 302 - Peter Paul 2019 Catalog

COIL OPTIONS
Encapsulated Diode Spade Coil for
Series 15 Solenoid Valves
A full wave bridge is encapsulated into the coil assembly Series 15 solenoid valves. Each encapsulated coil contains a diode circuit that converts common 50/60Hz voltage to DC. Running the coil on DC eliminates the in-rush current, thus limiting the excessive heat build-up encountered with frequently cycled valves. The DC coil voltage also allows the use of an elastomeric damper within the valve in itself. This damper reduces the audible click which occurs on actuation as well as increases the life of the valve.
Electrical Connectors
Solenoid valves can be configured with numerous coil options, voltages, orifice sizes, pressure ratings, elastomers, footprints, and more. There are a wide range of attachments and add-ons such as splice boxes, mounting brackets, manifolds, etc. to enhance the utility of the solenoid valve.
Solenoid valves are factory equipped with required pin connectors and specified leads and lead lengths to allow installation of the valves by maintenance personal without the need for an electrical engineer. Electrical connectors include male or female pins and connectors, custom lead lengths, junction box connectors, and other simple fasteners which can be handled on the floor or in the field. Typical electrical connectors include pin styles, receptacles, housing flag connectors, and two-or three- pin flange connectors.
Time Delay Coils
Check Process Before Media Flow
The Series 30 solenoid valves are for time delay coils with built-in thermistor employed on many oil burners. The thermistors circuit in the solenoid valve coil delays the pickup of the valve plunger from 2 to 6 seconds. This allows the solenoid to be certain of the process parameters before media flow commences.
An example is the start-up sequence for an oil burner. If there is no flame, oil flow may flood the burner, often requiring maintenance of an extended period of time before a re-start can be initiated. When the call activates the burner, the solenoid valves time delay function allows the pump and fan/motor to reach operating speed before starting fuel flow.
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