Crown Boiler 24-07 用户手册

39

NOTES: 1. 

All piping is schedule 40.

2. 

To prevent condensate from being trapped in header

, do not reduce  

 

equalizer elbow at header connection. 3. 

Ball valve preferable, gate valve acceptable alternative 

 

(supplied by others).

 

• Minimum valve size per 

ASME code is 3/4” NPT

 24-03/24-04; 

 

 1” NPT

 24-05/24-08; 1-1/4” NPT

 24-09/24-12.

 

• Increasing the valve size will improve the blowdown operation. 

 

• In all cases, piping connecting blowof

f valve to boiler shall be full  

 

 

size to the point of discharge.

4. 

Header piping may be run over top of the boiler if space does not  

 

 

allow for piping arrangement shown. Increased service 

 

requirements will  

result however

.

5. 

Supply from the boiler header must be connected between the fi

rst  

 

boiler riser and the header drip (or Hartford Loop). Do not connect  

 

supply between risers or opposite end of boiler header

.