Series 61 Booster Relays
The series 61 Booster Relays reproduce pneumatic signals in a 1:1 ratio for applications where input isolation or increased flow capacity are required.
61H is a High-Capacity Booster Relay designed to improve the stroking speed of large diaphragm valves.
61VH is a High-Capacity Booster Relay designed for use on control valve actuators that require very fast stroking speeds
Both 61H and 61VH feature a stabilizing bypass needle valve between the input and output, which eliminates the need for an externally piped bypass.
Epoxy powder coating provides excellent corrosion resistance
Input pressure acting upon the effective area of the upper diaphragm, produces a force that is opposed by the output pressure exerted upon the effective area of the lower diaphragm. The opposing forces are in a direct 1:1 ratio.
Series 62 Constant-Differential Relays serve as air-flow controllers maintaining a constant air purge for each setting of an integral needle valve.
Series 63 Constant-Differential Relays are used in conjunction with an external needle valve to provide constant volume flow rates of liquids or gases over a continuously adjustable range.
The Model 66 Amplifying and Reducing Relays are used to increase or decrease control-circuit pressure signals.
Series 661 Amplifying Relays are fixed-gain force-balance instruments, which incorporate bias adjustment that amplify pneumatic instrument signals.
Model 91-HF Filter-Regulator
The Model 91-HF Filter-Regulator is designed to provide clean, accurate air pressure to instruments, valves, and other automatic control equipment. The filter regulator has been proven to provide long lasting corrosion resistance in harsh industrial environments. The 91-HF Filter regulator is a quality unit that is ideal as an economical alternative for control of process applications. It is used extensively to supply air to pneumatic controllers, transmitters, transducers, valve positioners, air cylinders, and a wide range of pneumatic control systems.
Stable output and repeatability
Corrosion resistant construction
Low droop at high flow levels
Model 2306 Instrument Air Filter
The Model 2306 instrument air filter is used to remove dirt, oil, water, and other impurities from an instrument-air supply. The highly efficient instrument-air filter uses the principle of coalescence to trap fine particles in a drip well.
A simple petcock permits the filter to be blown down periodically.
Solid brass construction delivers exceptional durability
Natural wool filter medium provides unsurpassed coalescing action
Find your local sales representative for Siemens Process Instrumentation
Customer Care (USA): 1-800-365-8766
USA Service and Support Call Center: 1-800-333-7421