Okla. Admin. Code § 380:25-5-28

Current through Vol. 42, No. 6, December 2, 2024

Section 380:25-5-28 - Water gage glasses

(a) Each steam boiler shall have one or more water gage glasses attached to the water column or boiler by means of valved fittings. The lower fitting shall be provided with a drain valve of the straightway type with opening not less than 1/4 inch diameter to facilitate cleaning. Gage glass replacement shall be possible while the boiler is under pressure.

(b) Transparent material, other than glass, may be used for the water gage provided that material has proved suitable for the pressure, temperature and corrosive conditions encountered in service.