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The connection between sterilizer vent or exhaust openings and the sterilizer vent stack shall be designed and installed to drain to the funnel or basket-type waste fitting. In multiple installations, the sterilizer vent stack shall be drained separately to the lowest sterilizer funnel or basket-type waste fitting or receptor.
Sterilizer vent stack sizes shall comply with Section 18-29-713.11.1 through Section 18-29-713.11.4.
The minimum size of a sterilizer vent serving a bedpan steamer shall be 1 1/2 inches (38 mm) in diameter. Multiple installations shall be sized in accordance with Table 18-29-713.11.1.
Stack Size (inches) | Connection Size | ||
1 1/2" | 2" | ||
Stack Size (inches) | Connection Size | ||
1 1/2" | 2" | ||
1 1/2 a | 1 | or | 0 |
2 a | 2 | or | 1 |
2 b | 1 | or | 1 |
3 a | 4 | or | 2 |
3 b | 2 | or | 2 |
4 a | 8 | or | 4 |
4 b | 4 | or | 4 |
For SI: 1 inch = 25.4 mm.
a. Total of each size.
b. Combination of sizes.
The minimum size of a sterilizer vent stack shall be 2 inches (51 mm) in diameter where serving a utensil sterilizer and 1 1/2 inches (38 mm) in diameter where serving an instrument sterilizer. Combinations of boiling-type sterilizer vent connections shall be sized in accordance with Table 18-29-713.11.1.
Pressure sterilizer vent stacks shall be 2 1/2 inches (64 mm) minimum. Those serving combinations of pressure sterilizer exhaust connections shall be sized in accordance with Table 18-29-713.11.3.
Stack Size (inches) | Connection Size | |||
3/4" | 1" | 1 1/4" | 1 1/2" | |
Stack Size (inches) | Connection Size | |||
3/4" | 1" | 1 1/4" | 1 1/2" | |
1 1/2 a | 3 or | 2 or | 1 | – |
1 1/2 b | 2 and | 1 | – | – |
2 a | 6 or | 3 or | 2 or | 1 |
2 b | 3 and | 2 | – | – |
2 b | 2 and | 1 and | 1 | – |
2 b | 1 and | 1 and | – | 1 |
3 a | 15 or | 7 or | 5 or | 3 |
3 b | 1 and | 1 and 5 and | 2 and | 2 1 |
For SI: 1 inch = 25.4 mm.
a. Total of each size.
b. Combination of sizes.
The minimum diameter of a sterilizer vent stack serving an instrument washer sterilizer shall be 2 inches (50 mm). Not more than two sterilizers shall be installed on a 2-inch (50 mm) stack, and not more than four sterilizers shall be installed on a 3-inch (75 mm) stack.
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