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Virginia Administrative Code
Title 16. Labor And Employment
Agency 25. Safety And Health Codes Board
Chapter 50. Boiler and Pressure Vessel Regulations
12/26/2024

16VAC25-50-500. Boiler door latches.

A. A water tube boiler shall have the firing doors of the inward-opening type, unless such doors are provided with substantial and effective latching or fastening devices or otherwise so constructed as to prevent them, when closed, from being blown open by pressure on the furnace side.

B. These latches or fastenings shall be of the positive self-locking type. Friction contacts, latches, or bolts actuated by springs shall not be used. The foregoing requirements for latches or fastenings shall not apply to coal openings of downdraft or similar furnaces.

C. All other doors, except explosion doors, not used in the firing of the boiler, may be provided with bolts or fastenings instead of self-locking latching devices.

D. Explosion doors, if used and if located in the setting walls within seven feet of the firing floor or operating platform, shall be provided with substantial deflectors to divert the blast.

Statutory Authority

§§ 40.1-22 and 40.1-51.5 et seq. of the Code of Virginia.

Historical Notes

Derived from VR425-01-75 § 4.12, eff. July 1, 1974; amended, eff. November 1, 1978; July 1, 1991; September 1, 1993.

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