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11 

EPDT-213b

 

 

7.2 Precaution for inspection

 

 

 

         

Caution

 

1.  Do not disassemble the bellows while the thermal bulb is heated. 

* Failure to follow this notice may damage the bellows and prevent the product from functioning properly. 

2.  Do not give any shock to the thermal bulb. 

 

          Warning

 

Inspection must be done by experienced professional or valve manufacturer. 
Completely discharge the pressure inside of the product, piping and equipment prior 
to  disassembly  and  inspection.  When  fluid  is  hot,  cool  down  the  product  to  the 
condition that it can be touched with bare hands. 
*  Failure  to  follow  this  notice  may  result  in  scalds,  injury  or  contamination  on  the 
surroundings due to the residual pressure.

 

Содержание OB-30

Страница 1: ...d result in death or serious injury Caution This symbol indicates a hazardous situation that if not avoided may result in minor or moderate injury or may result in only property damage Table of Conten...

Страница 2: ...Pa Material Thermal bulb Copper pipe Nickel chrome plated Capillary tube Copper Flexible tube Stainless steel Standard capillary length 2 m Connection JIS R1 2 screwed Available with thermal well stai...

Страница 3: ...Nominal Size d L Weight kg Capillary length Weight 15A Rc 1 2 75 2 1 2 m 0 6 kg 20A Rc 3 4 80 2 2 25A Rc 1 90 2 4 OB 30U OB 31U OB 30U OB 31U Body mm Sensor Nominal Size d L Weight kg Capillary lengt...

Страница 4: ...lve When the temperature of the bulb lowers the downward force applied to the spindle by the spring 11 opens the valve The set temperature can be adjusted by turning the handle 12 to change the load o...

Страница 5: ...orce to the spindle 7 to open the valve When the temperature of the bulb lowers the downward force applied to the spindle by the spring 11 closes the valve The set temperature can be adjusted by turni...

Страница 6: ...P2 and steam flow rate are 0 2 MPa 0 15 MPa and 20 kg h respectively first find intersection point a of the inlet pressure of 0 2 MPa and the outlet pressure of 0 15 MPa Trace down vertically from th...

Страница 7: ...re and flow rate are 0 3 MPa 0 15 MPa and 1 m3 h respectively first find intersection point a of the differential pressure P of 0 15 MPa 0 3 MPa 0 15 MPa before and after the valve and the flow rate o...

Страница 8: ...Failure to follow this notice hampers correct temperature regulation 11 Do not apply excessive load torque or vibration to the product Failure to follow this notice may result in malfunction or a dra...

Страница 9: ...lve Capillary tube 5 4 Assembly of body and sensor Place the bellows follower 13 which is packaged with the body into the bellows 14 with its flat surface facing downward and then screw it into the lo...

Страница 10: ...r hammer and can heavily damage the main parts of the product Be sure to follow the procedure below 1 Close the stop valves at the inlet and outlet sides of the product Open the bypass stop valve and...

Страница 11: ...t us to retighten the gasket or disassemble the product to replace the part 2 Balance bellows 6 is damaged 2 Please contact us to disassemble the product and replace the part OB 31 OB 31U Trouble Caus...

Страница 12: ...hock to the thermal bulb Warning Inspection must be done by experienced professional or valve manufacturer Completely discharge the pressure inside of the product piping and equipment prior to disasse...

Страница 13: ...improvement without any prior notice After the discontinuation of the product Yoshitake supplies the repair parts for 5 years otherwise individually agreed 3 This warranty does not cover the damage d...

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