rotork YT-2700, Product Manual

Page: 24 / 51

Smart Positioner
YT-2700 Product Manual
Ver. 1.18
24
4 Connection - Air
4.1 Safety
➢
Supply pressure should be clean and dry air
– avoiding moisture, oil and dust.
➢
Always recommended to use air filter regulator (i.e. YT-200 series).
➢
Rotork YTC Limited
has not tested positioner’s operation with any other gases other than
clean air. Please contact Rotork YTC Limited for any questions.
4.2 Supply Pressure Condition
➢
Dry air with dew point of at least 10
℃
lower than ambient temperature.
➢
Avoid from dusty air. Use 5 micron or smaller filter.
➢
Avoid oil.
➢
Comply with ISO 8573-1 or ISA 7.0.01.
➢
Supply pressure range is 0.14 ~ 0.7 MPa (1.4 ~ 7 bar)
➢ Set air filter regulator’s pressure level 10% higher than actuator’s spring range pressure.
4.3 Piping Condition
➢
Ensure inside of pipe is clean of obstructions.
➢
Do not use pipeline that is squeezed or shows any type of damamges.
➢
The length of pipeline system should not be extremely long. Longer pipeline system may affect
flow rate due to the friction inside of the pipeline.
Fig. 4-1: Linear type on a right yoke Fig. 4-2: Linear type on a left yoke Fig. 3-20: Rotary type