Yoshitake CF-90 Product Manual Download Page 1

EPDT-337a

 

MODEL CF-90 

Constant Flow Valve 

 

PRODUCT MANUAL

 

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Thank you very much for choosing the Yoshitake’s product. To ensure the correct and safe use of the product, 

please read this manual before use. This manual shall be kept with care for future references. 
The symbols used in this manual have the following meanings. 

 

          Warning 

This  symbol  indicates  a  potentially  hazardous  situation  that,  if  not  avoided, 
could 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 Contents 

 

1. Specifications···························································· 1 

2. Structure, Dimensions and Weight ································· 2 

3. Performance characteristic chart 

3.1 Noise characteristic chart ······································· 3 

3.2 Flow rate characteristic chart ·································· 3 

4. Precautions for installation ··········································· 4 

5. Precautions for operation ············································· 5 

6. Maintenance 

6.1 Troubleshooting ··················································· 6 

6.2 

Precautions for maintenance and inspection ·············· 6 

Warranty Information 

 

 

 

 

 

 

 

 

 
 
 
 
 
 

 

 
 

 

Summary of Contents for CF-90

Page 1: ...us situation that if not avoided could 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...

Page 2: ...Connection JIS Rc screwed Installation posture Horizontal or vertical installation The product conforms to the standard of the Japanese Water Supply Act NPb treated Caution Please confirm that the in...

Page 3: ...C type retaining rings internal 3 Cartridge 4 Label 5 JWWA label 6 Spacer 7 Needle 8 Needle plate Parts No 6 is only for 20A Parts No 7 and 8 is only for 25A mm Nominal size d L A Weight kg 15A Rc 1 2...

Page 4: ...ise characteristic chart 3 2 Flow rate characteristic chart Fig 3 2 Flow rate characteristic chart Noise Differential pressure Differential pressure Flow rate The chart shows the noise level at the ma...

Page 5: ...annot flow due to closed piping situation of the product fluid temperature rise expands volume of fluid in the piping and damages the product 7 Secure enough space needed for maintenance and inspectio...

Page 6: ...foreign substances such as scale material leads to prevent the product from functioning properly 3 If case of a possible frozen line take proper measures to remove water inside the piping or equip the...

Page 7: ...cartridge is clogged Clean the cartridge The cartridge is broken Replace the product The set flow rate is wrong Confirm the flow rate with the indications on the product Stop valves before and after...

Page 8: ...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 forei...

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