Bellofram Precision Controls
Servo Pressure Controllers
Marsh Bellofram designs and manufactures a complete line of servo pressure controllers, including both traditional and analog circuit card models, to suit a variety of OEM, industrial, HVAC and medical device and equipment process control applications.
Analog Circuit Cards Type 3110 & Type 3120
The Marsh Bellofram Type 3110 and Type 3120 are a series of highly compact single- (3110) and double-loop (3120) electro-pneumatic analog circuit-card servo pressure transducers, designed to provide high-performance, economical air pressure monitoring capabilities within a variety of OEM, industrial process control, and medical device and equipment applications.
Analog Circuit Card HVAC Units
The Type 3111 Compact Analog Circuit Card Pressure Regulator is an economical version of the T3100 series, expressly designed for use within HVAC industry applications. Jumper selections include AC/DC power and several control signal ranges. Manual output pressure adjustment and differential control signals are also available upon request.
Digital Circuit Card Units
The Marsh Bellofram Type 3410 (one-loop) and 3420 (two-loop) Circuit-Card Pressure Regulators are perfect for size-conscious OEM's without sacrificing any of the high-end performance normally associated with full-size I/P's.
Analog Enclosure Regulators
Marsh Bellofram analog enclosure regulators provide high-performance electro-pneumatic pressure monitoring capabilities within a rugged, waterproof enclosure. Users can order custom configured standard models with such parameters as the number of power loops, logic output, analog control signal, pressure units of measure, supply and output ports and accessories to suit individual application requirements.
Digital Enclosure Units
Marsh Bellofram digital electro-pneumatic servo pressure controller enclosure units combine the advantages of reliable solenoid valves and digital control. Available with a local keypad programming option or RS-485 digital communications for PLC or PC control, these precision controllers allow the user the ability to set and extract data directly from the transducer with a PC or automation system.
Mounting Options and Accessories
To ensure the best performance capabilities of our pressure regulators and controllers, Marsh Bellofram offers a variety of directly compatible cordsets, converters, power suppliers, control knobs, external volume boosters and other accessories. All are field tested and proven for their reliability and durability.
