Medical Gas Design — EMGS Internal Tools

Air & Vacuum Source Sizing

Name of Facility

Project Number

Cylinder Manifold Sizing

ASPE V3 — Tables 2-7, 2-8, 2-9, 2-10

Size cylinder manifolds for Oxygen, Nitrous Oxide, Carbon Dioxide, and Nitrogen systems per ASPE Plumbing Engineering Design Handbook, Volume 3.

OXYGEN MANIFOLD CALCULATOR

Number of Beds

Anesthetizing Locations

Monthly Usage (CF/bed) Outpatient ~400 / Hospital ~1000 CF/bed/month

OXYGEN SIZING METHOD

1. Determine bed count + anesthetizing locations
2. Multiply beds by 400-1000 CF/bed/month
3. Divide monthly total by 4 for weekly consumption
4. Use Table 2-7 to size the manifold
Cylinders changed max once per week. Equal primary & reserve banks.

TABLE 2-7 — SIZING OF OXYGEN CYLINDER MANIFOLD

CF Consumed / Week	Total Cylinders	Cyl. per Side
1,800	4	2
2,700	6	3
3,600	8	4
4,600	10	5
5,500	12	6
6,400	14	7
7,300	16	8
8,200	18	9
9,200	20	10
10,000	22	11
11,900	24	12
11,900	26	13
12,800	28	14

Locations Piped with N₂O	Total Cylinders	Cyl. per Side
4	4	2
6	6	3
8	8	4
10	10	5
12	12	6
14	14	7
16	16	8
18	18	9
20	20	10
22	22	11
24	24	12
26	26	13
28	28	14

Locations	Daily Consumption (L)	Total Cyl.	Cyl. per Side
4	3,400	4	2
6	5,300	6	3
8	7,000	8	4
10	8,700	10	5
12	11,000	12	6
14	12,000	14	7
16	14,000	16	8
18	16,000	18	9
20	18,000	20	10
22	19,000	22	11
24	21,000	24	12
26	23,000	26	13
28	24,000	28	14

Operating Rooms Piped with N₂	Total Cylinders	Cyl. per Side
1	4	2
2-4	4	2
5-8	8	4
9-12	12	6
13-16	16	8
17-20	20	10
21-24	24	12
25-28	28	14

Locations Piped with N₂O	Total Cylinders	Cyl. per Side
4	4	2
6	6	3
8	8	4
10	10	5
12	12	6
14	14	7
16	16	8
18	18	9
20	20	10
22	22	11
24	24	12
26	26	13
28	28	14

Locations Piped with N₂O	Total Cylinders	Cyl. per Side
4	4	2
6	6	3
8	8	4
10	10	5
12	12	6
14	14	7
16	16	8
18	18	9
20	20	10
22	22	11
24	24	12
26	26	13
28	28	14