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■EPDT-048

a

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5. Maintenance

 

 

5.1 Precaution for installation 

Caution

 

1. When installing, check the direction of the product so that the fluid flowing and the arrow marked on 

the product are in the same direction.

 

* Setting the product in wrong directions prevents the product from performing as intended.

 

2. When installing, secure the space to remove the screen.

 

* Failure to follow this notice hampers cleaning of the screen.

 

3. Do not apply excessive load, torque or vibration to the product

* Failure to follow this notice may result in fluid leakage. 

4. Do not apply excessive load, torque or vibration to the product.

 

* The foreign matter corresponding to the specified mesh size may not be completely caught 

constitutionally. 

1. Clogging inside the product can be known from the differential pressure measured, when pressure 

gauges are installed in upstream and downstream of the product. [See Fig. 1 in “7. Piping 
Example.”] 

2. The product shall be installed with its cap faced downward. 

* If drainage or similar problem occurs in a steam line, incline the product to the position at which 

the cap is kept horizontally. 

3. If the product can only be installed to run the fluid from the bottom to the top, make sure to install a 

blow valve in order to remove the scale accumulated at the bottom of the riser pipe. [See Fig. 2 in 
“7. Piping Example.”] 

4.When the fluid is steam, connect piping so that the cap faces sideways in order to minimize the 

pooling of drain. [See Fig. 3 in “7. Piping Example.”] 

 
 

5.2 Precaution for operation 

Warning

 

1. When the product is used for hot fluid, do not touch the product with bare hands.

 

* Failure to follow this notice may result in scalds or injury.

 

2. Do not retighten the cap or cover after leading fluid into the product. 

* Failure to follow this notice may damage the gasket and cause outside leakage. 
* Failure to follow this notice may result in scalds or injury.

 

 

Caution

 

1. Use the product under a maximum pressure loss below 0.1 MPa. Periodically clean the screen.

 

* Failure to follow this notice may damage the screen.

 

 

 

 

 
 
 
 
 
 
 
 
 
 
 
 
 

Summary of Contents for SY-17

Page 1: ...lt 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 Contents 1 Specifications 1 2 Dimensions 1 3 Operation 2 4 Nominal Size Selection 4 1 Selection of nominal size 2 4 2 Selection of nominal pipe size 2 4 3 Pressure Loss Chart 3 5 Maintenance 5 1 Precaution for in...

Page 2: ...4P Mesh Standard 80 mesh Connection JIS Rc Screwed If the temperature is over 100 C another material is used for the gasket Please contact us Available with 20 to 100 mesh screens 2 Dimensions mm Nominal size d L H1 A B ds ls Weight kg 15A Rc 1 2 85 55 22 30 20 35 0 40 20A Rc 3 4 100 69 27 38 25 50 0 68 25A Rc 1 115 83 30 44 32 60 1 01 32A Rc 1 1 4 135 92 36 54 40 70 1 48 40A Rc 1 1 2 150 102 41 6...

Page 3: ...l pipe size is smaller the costs of piping and equipment decreases while the pressure loss through the pipe increases to generate disturbances possibly resulting in pipe wear noise and or vibration If the nominal pipe size is too large not only the costs of piping and equipment but also the thermal loss increases As a reference the standard flow velocity is specified in the Japanese Industrial Sta...

Page 4: ...3 EPDT 048a 4 3 Pressure Loss Chart Screen φ2 5 4P Mesh 80 mesh ...

Page 5: ... 2 The product shall be installed with its cap faced downward If drainage or similar problem occurs in a steam line incline the product to the position at which the cap is kept horizontally 3 If the product can only be installed to run the fluid from the bottom to the top make sure to install a blow valve in order to remove the scale accumulated at the bottom of the riser pipe See Fig 2 in 7 Pipin...

Page 6: ...e to the residual pressure 1 After checking the pressure gauge to make certain there is no pressure inside the body 1 remove the cap 2 and screen 3 Clean up the screen 3 by compressed air or water 6 2 Precaution for reassembly Caution 1 Clean the gasket contact surfaces of both the body and the cap Improper cleaning may cause fluid leakage at the gasket resulting in scalds or injury 2 When install...

Page 7: ...r 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 due to any of below 1 Valve seat leakage or malfunction caused by foreign substances inside piping 2 Improper handling or misuse 3 Improper supply conditions such as abnormal water pressure quality 4 ...

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