National, state and local anti-pollution laws, either existing or proposed, generally include maximum temperature limitations for waste water drained into lakes, streams, etc. These restrictions may include storm drains as well as direct discharge into public waters. Most areas have long had such limitations with regard to sanitary sewers. Anti-pollution laws may require modification of many existing boiler blowdown arrangements, as well as consideration in design of new facilities.
NOTES:
1. TOP OF VENT SHOULD BE ABOVE HEAD HEIGHT (7′-0″).
2. DRAIN MUST HAVE FREE FLOW TO SEWER.
3. TEMPERATURE OF DRAIN LIQUID IS CONTROLLED BY COLD WATER SUPPLY.
4. CONNECTIONS CAN BE FURNISHED THREADED, FLANGED OR BEVELED FOR WELDING.
4. TEMPERATURE OF COLD WATER °F
1. BOILER BLOWDOWN VALVE SIZE INCHES
3. PRESSURE OF COLD WATER SUPPLY PSIG
2. BOILER OPERATING PRESSURE PSIG
DATA REQUIRED FOR SIZING
5. DESIRED DRAIN DISCHARGE TEMPERATURE °F
6. IF USED FOR CONTINUOUS BLOWDOWN LBS/HR
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