SPDT DIFFERENTIAL PRESSURE CONTROL
This Johnson Controls 3516 P74 series differential pressure control provides a zero-differential, zero-supply signal to the actuator. Available in 2 different interchangeable mounting bracket configurations for use with air or liquid, or a combination of both.
Johnson Controls 3516 series single-pole, double-throw, differential pressure control has a 8 to 60 adjustable psi differential pressure range and is available in 4-wire (4W) or 3-wire (3W) electrical installation.
The P74 is a differential pressure control used to shut down a motor in the event of an overpressure or underpressure condition. The series P74 uses 1/4" external flare tubing connections. The 3516 is the 16 position version of this control.
The P74 Differential Pressure Controller is ideal for controlling pressure related processes. The compact design uses a standard process connection and requires minimal additional equipment.
The type 3516 is a differential pressure control, single-pole, double-throw, that provides an adjustable flow of process or clean air to a controlled area. It is for normally closed operation with flow through atmosphere, but it can be used for normally open operation with flow against atmosphere.
The JCI 3516 differential pressure control is a single-pole, double-throw pneumatic controller that provides a differential pressure output of 8 to 60 psi. This is a compact instrument suitable for many process control applications in the utility, petroleum, and industrial markets.
A differential pressure control maintains the pressure in a vessel or line to a set value, or is used to provide automatic control of differential pressure. A differential pressure control uses two separate controls to regulate two pressures at the same time. The two controls are called differential controls. Use the 3516 P74 series differential pressure controller for applications with fluid requiring highly accurate, repeatable pressure control.
Ensure constant comfort in temperature-controlled environments with the P74 Series DPC. This Double-Pole, Double-Throw (DPDT) switch, operating in single differential pressure mode, allows the flow of gas when pressure is present on both inputs and blocks the flow when pressure is present on only one input. As a result, this DPC prevents obstructions from affecting downstream equipment attached to the DPC's output. Its scaled diaphragm ensures quick response without compromising accuracy, while guard zones guard against overshoot. The unit is lamp type humidity compensated with an adjustable setpoint that uses external air to
The P74 Series is a low cost, normally open and normally closed differential pressure switch that mounts into a control loop. The control loop serves double duty as both the electrical and fluid passage means of the switch. Differential pressure ranges of 0-8 and 0-60 can be selected on some models.
Controls power attic fans and provides positive air pressure control in tightly sealed buildings 30 to 80 (38 to 176 mbar) adjustable differential pressure range (in. wg) 1/4 in. (6.3 mm) maximum line size Large 1/4 in. (6.3 mm) flare connections provide excellent gas flow capacity Large floating actuating lever accommodates wear and tolerances without binding, contains a magnet for improved positioning, even in dirty environments Adjacent manually operated controls allow the single switch to operate two separate motions Maximum switching capacity: 50 amp at 60/120 VAC, 5 HP motor at
The P74 Series is a pressure control switch designed to control condensate drains, dryers, panel heaters and exhaust fans. With a 35-100 PSID differential pressure range and a 20 amps current rating, these products can handle most applications with ease. A quick-acting plunger helps the condensate pump maintain a low flow limit for your comfort.
Brimming with features, the Johnson Controls 3516 is an economical alternative for all your pressure control applications. Boosts the system to higher pressure.
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