Gas Therapy

Published on 01/06/2015 by admin

Filed under Pulmolory and Respiratory

Last modified 01/06/2015

Print this page

rate 1 star rate 2 star rate 3 star rate 4 star rate 5 star
Your rating: none, Average: 0 (0 votes)

This article have been viewed 2584 times

Gas Therapy

Medical, Laboratory, and Therapeutic Gases and Mixtures

II Flammable Gases

III Nonflammable Gases

IV Gases That Support Combustion

Gas Cylinders

Cylinder types and composition

Cylinder markings: Markings are located at the neck of the cylinder in two groupings (Figure 33-1).

Cylinder size

Cylinder capacities for oxygen

Maximum filling pressure of 3AA oxygen cylinders: 2015 psi plus 10% (2200 psi)

Calculation of duration of flow from oxygen and compressed air cylinders

1. One cubic foot of gas = 28.3 L

2. The volume of gas in liters in a full cylinder = cubic foot volume × 28.3 L/ft3

3. Dividing the aforementioned determined value by the maximum filling pressure of 2200 psi results in the calculation of a factor indicating the number of L/psi:

< ?xml:namespace prefix = "mml" />Factor for duration of flow=(ft3vol)(28.3L/ft3)2200psi=L/psi (1)

image (1)

4. For a D-sized cylinder:

(12.7ft3)(28.3L/ft3)2200psi=0.16L/psi

image

5. L/psi factors for oxygen cylinders

6. Calculation of duration of flow in minutes

Color code for E cylinders (Color coding is mandatory for E-sized cylinders only; other sizes of cylinders are not required to follow any coding system.)

Hydrostatic testing of cylinders

Cylinder stem pop-off valves

Gas cylinder storage and handling

Buy Membership for Pulmolory and Respiratory Category to continue reading. Learn more here