Assortment / System Description

Powers
®
243 Series Pneumatic Relays and Three-way Valve
Powers® 243 MP Multi-Purpose Relay
The Powers RL 243 MP Multi-Purpose Relay is a pneumatic auxiliary device designed to
provide a variety of pneumatic control functions for the typical control system.
Applications include direct and reverse acting amplifying, signal advancing, minimum
pressure relay, and lower pressure transfer. The relay operates on a force balance
principal and is provided with a Powers two-valve design to assure stability and prevent
unnecessary air consumption. Internal relief assembly prevents signal lock-up and
assures fail-safe operation. A single spring adjustment is provided to allow setting the
relay for desired operation.
Part Number: 243-0009
Technical Instructions
Installation Instructions
Powers® 243 BR Balance Retard Relay
The RL-243 Balanced Retard (BR) Relay is a pneumatic auxiliary device used to obtain
special pneumatic signal outputs for use in a pneumatic control system. Standard
applications include signal retarding, balancing action, and signal advancing. The relay
can also be used to obtain several special control functions such as signal hesitation and
pressure limiting. The relay operates on a force-balance principal and is provided with a
Powers’ two-valve design to assure stability and prevent unnecessary air consumption.
Internal relief assembly prevents signal lock-up and assures fail-safe operation. The relay
is also adaptable for flush panel mounting to facilitate manual readjustment if desired.
Part Number: 243-0010
Technical Instructions
Installation Instructions
Powers® 243 A Analog Relay
The RL 243A Analog Relay is a pneumatic auxiliary device designed to assist the
engineer in obtaining specialized control action within a pneumatic control system.
Applications include amplifying, summing, differential pressure, ratio control, higher
pressure, and signal characterization control. The relay operates on a force balance
principle and is provided with a Powers’ two-valve design to assure stability and prevent
unnecessary air consumption. Internal relief assembly prevents signal lock-up and
assures fail-safe operation.
Part Number: 243-0011
Technical Instructions
Installation Instructions
Powers® 243 SW Switching Relay
The Powers 243 SW Switching Relay is a two-position, pilot-operated auxiliary device
used for switching a common part from one pneumatic circuit to another. A mounting
bracket is provided for mounting on a vertical or horizontal surface.
Part Number: 243-0001
Technical Instructions
Installation Instructions
Three-way Electro-Pneumatic (EP) Valve
These rugged and reliable general purpose air valves provide multiple voltage and style
options to meet most any application need. Series 265 Electro-Pneumatic Valve is a
general purpose, electrically operated, two position 3-way valve designed to control
airflow. It can be used for interlock between an electrical system and a pneumatic control
system.
Part Numbers: 265-1021, 265-1022, 265-1024, 265-1027, 265-1028
Technical Instructions
Installation Instructions