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CAUTION
Please refer to the manual attached to the product for procedures for installation and operation.
OB-30 series Temperature Regulator – Annex
Disassembly and troubleshooting
Please note that body and sensor are supplied separately. Assemble body and sensor according to the following procedures.
· Installation of body
1. Please be sure not to lose the bellows follower (attached component).
2. Install the body to horizontal piping with the handle facing upward.
3. Check the direction of the product so that the fluid flowing and the arrow marked on the body are in the
same direction.
4. Be sure to install pressure gauges, a strainer and a bypass line to the piping. (See P.
5. The pressure of heating or cooling fluid should be reduced with a reducing valve if it exceeds the maximum
pressure.
6. Before stopping operation of the product for an extended period, completely discharge the condensate
inside the product and piping, and close the stop valves installed at before and after the product.
7. Before leading fluid into the product, be sure to remove foreign substances and scale from the piping
completely by using a bypass line.
· Installation of thermal bulb
1. Although the thermal bulb can be mounted in any posture, make sure that more than 3/4 of its total length
is in direct contact with the fluid to be heated or cooled.
2. Screw in the bushing first, then use the washer of packing to secure the thermal bulb.
3. The bend radius of the capillary tube should be more than 40 mm. Avoid bending at a sharp angle, twisting
or pulling it with force.
4. Install a thermometer close to the thermal bulb.
5. When inserting the thermal bulb into the piping for temperature detection, it should be installed at a point
where the circulation is best.
· Assembly of body and sensor
Place the bellows follower, which is packaged with the body, into the bellows with its flat surface facing downward and then
screw it into the lower surface of the body by the ring. It makes the assembly easier to loosen the handle to direction of the
"L" position. Be sure not to lose the bellows follower because the product does not function properly without it.
Completely discharge the internal pressure from the valves before disassembly.
Temperature Regulator – Annex
Body
Bellows follower
Ring
Bellows
www.yoshitake.jp
OB-30 series
-8 to 10.)
13
-34
13
13
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