Controlair Type Transducer
Fairchild Type TransducerPetrochemical And Refining
Refinery and petrochemical duty is where the transducer population is largest and where the consequences of a slow spare are worst. The PT 700 series is specified for exactly this service, providing the interface between an electro-pneumatic positioner and a pneumatic actuator in chemical, petro-chemical and refinery applications.
What Makes This Application Difficult
Area classification limits what can be installed
Most of the unit is classified, so an instrument that needs a separate power feed is a problem before it is a solution.
Import lead times do not match turnaround windows
A turnaround is planned months ahead and executed in days. A transducer on a twelve week lead time is not a spare, it is a risk.
Mixed instrument populations
Units built at different times carry different patterns, so one plant can hold four or five incompatible transducer families.
Vibration near compressors and pumps
An instrument whose output moves with the structure it is bolted to will show up as a loop tuning problem long before anyone suspects the transducer.
How The Range Addresses It
EAA covers the Controlair, Marsh Bellofram, Fairchild, Flowserve and EPC patterns from one workshop, so a mixed population becomes one purchase order. For classified areas the PT700 runs two-wire with ATEX II 1 G EEx ia IIC T4, and the T1000 is available in an explosion proof build. Where vibration is the issue, the T7800 holds output regardless of vibration or position through internal electronic feedback.
Products For This Industry
Flowserve Type TransducerPT700 Electro Pneumatic Transducer
Two-wire piezoelectric microvalve transducer, ATEX EEx ia IIC T4, IP66
View specifications →
Fairchild Type TransducerT7800 Electro Pneumatic Transducer
Piezoelectric precision transducer, 0.25% full scale accuracy, NEMA 4X and IP65
View specifications →
Marsh Bellofram Type TransducerT1000 Electro Pneumatic Transducer
Force balance I/P transducer with a built-in volume booster, four build classes
View specifications →
EPC Type TransducerEPC1000 Electro Pneumatic Transducer
Direct moving E/P converter with a power amplifying relay, EAA's own EPC pattern
View specifications →Questions From Petrochemical And Refining Buyers
Which model suits a classified area with no local power
The PT700 on the PT715 build: two-wire operation with ATEX II 1 G EEx ia IIC T4 and IP66 ingress protection.
Do you supply explosion proof transducers
Yes. The T1000 is catalogued in an explosion proof class, and the T6000 catalog number carries an explosion-proof and dust ignition-proof approval class including NEMA 4X and IP65.
Can one supplier cover all the transducer patterns on our site
The five patterns listed on this site are built in the same workshop, which is the point of holding them as one range rather than as separate product lines.
Get A Recommendation For Your Petrochemical Loop
Describe the loop, the actuator and the area classification, and we will name the models that fit and the ones that do not.