Administrative Code

Virginia Administrative Code
11/27/2021

Part VIII. Compressed Air, Gases, and Boilers—Surface and Underground

4VAC25-40-1100. Boilers and pressure vessels.

Boilers and pressure vessels shall be constructed, installed, and maintained in accordance with the Boiler and Pressure Vessel Regulations (16VAC25-50-10 et seq.). Operators shall, upon request, provide proof that the boiler or pressure vessel meets the Boiler and Pressure Vessel Regulations. Boilers and pressure vessels shall be inspected by an inspector certified by the Virginia Department of Labor and Industry at the time periods specified in the Boiler and Pressure Vessel Regulations. Records of such inspections shall be kept.

Statutory Authority

§§ 45.1-161.3, 45.1-161.294 and 45.1-161.305 of the Code of Virginia.

Historical Notes

Derived from VR480-05-1.2 § 8.1, eff. July 19, 1989; amended, Virginia Register Volume 14, Issue 17, eff. July 1, 1998.

4VAC25-40-1110. Air compressors.

Air compressors shall be equipped with automatic temperature activated shutoff mechanisms set for 400°F or with fusible plugs installed in the compressor discharge lines as near the compressors as possible. Fusible plugs shall melt at temperatures 50° less than the flash points of the lubricating oils.

Statutory Authority

§§ 45.1-161.3, 45.1-161.294 and 45.1-161.305 of the Code of Virginia.

Historical Notes

Derived from VR480-05-1.2 § 8.2, eff. July 19, 1989.

4VAC25-40-1120. Compressed-air receivers.

Compressors and compressed-air receivers shall be equipped with automatic pressure-release valves, pressure gauges, and drain valves.

Statutory Authority

§§ 45.1-161.3, 45.1-161.294 and 45.1-161.305 of the Code of Virginia.

Historical Notes

Derived from VR480-05-1.2 § 8.3, eff. July 19, 1989.

4VAC25-40-1130. Compressor-air intakes.

Compressor-air intakes shall be installed to ensure that only clean, uncontaminated air enters the compressors.

Statutory Authority

§§ 45.1-161.3, 45.1-161.294 and 45.1-161.305 of the Code of Virginia.

Historical Notes

Derived from VR480-05-1.2 § 8.4, eff. July 19, 1989; amended, Virginia Register Volume 14, Issue 17, eff. July 1, 1998.

4VAC25-40-1140. Draining compressed-air receivers.

Compressed-air receivers shall be drained of moisture, oil, or carbon buildup in accordance with manufacturers' recommendations.

Statutory Authority

§§ 45.1-161.3, 45.1-161.294 and 45.1-161.305 of the Code of Virginia.

Historical Notes

Derived from VR480-05-1.2 § 8.5, eff. July 19, 1989; amended, Virginia Register Volume 14, Issue 17, eff. July 1, 1998.

4VAC25-40-1150. Inspection openings in compressed-air receivers.

Compressed-air receivers shall have inspection openings which, when the tanks are over 36 inches in diameter, shall be manholes.

Statutory Authority

§§ 45.1-161.3, 45.1-161.294 and 45.1-161.305 of the Code of Virginia.

Historical Notes

Derived from VR480-05-1.2 § 8.6, eff. July 19, 1989.

4VAC25-40-1160. Operating compressors.

Compressors shall be operated and lubricated in accordance with the manufacturers' recommendations.

Statutory Authority

§§ 45.1-161.3, 45.1-161.294 and 45.1-161.305 of the Code of Virginia.

Historical Notes

Derived from VR480-05-1.2 § 8.7, eff. July 19, 1989.

4VAC25-40-1170. Discharge pipes.

Compressor discharge pipes shall be cleaned periodically.

Statutory Authority

§§ 45.1-161.3, 45.1-161.294 and 45.1-161.305 of the Code of Virginia.

Historical Notes

Derived from VR480-05-1.2 § 8.8, eff. July 19, 1989.

4VAC25-40-1180. (Repealed.)

Historical Notes

Derived from VR480-05-1.2 § 8.9, eff. July 19, 1989; amended, Virginia Register Volume 14, Issue 17, eff. July 1, 1998; repealed, Virginia Register Volume 29, Issue 25, eff. September 26, 2013.

4VAC25-40-1190. Repairs.

Repairs involving the pressure system of compressors, receivers, or compressed-air-powered equipment, shall not be attempted until the pressure has been bled off.

Statutory Authority

§§ 45.1-161.3, 45.1-161.294 and 45.1-161.305 of the Code of Virginia.

Historical Notes

Derived from VR480-05-1.2 § 8.10, eff. July 19, 1989.

4VAC25-40-1200. Improper uses.

At no time shall compressed air be directed towards a person unless a diffuser limiting pressure to no more than 30 pounds per square inch is used.

Statutory Authority

§§ 45.1-161.3, 45.1-161.294 and 45.1-161.305 of the Code of Virginia.

Historical Notes

Derived from VR480-05-1.2 § 8.11, eff. July 19, 1989; amended, Virginia Register Volume 14, Issue 17, eff. July 1, 1998.

4VAC25-40-1210. Locking devices.

Safety chains or suitable safety devices shall be used at connections to machines of high pressure hose lines of 3/4 inch inside diameter or larger, and between high pressure hose lines of 3/4 inch inside diameter or larger, where a connection failure would create a hazard.

Statutory Authority

§§ 45.1-161.3, 45.1-161.294 and 45.1-161.305 of the Code of Virginia.

Historical Notes

Derived from VR480-05-1.2 § 8.12, eff. July 19, 1989; amended, Virginia Register Volume 14, Issue 17, eff. July 1, 1998.

4VAC25-40-1220. Storage of oxygen cylinders.

Oxygen cylinders shall not be stored near oil or grease.

Statutory Authority

§§ 45.1-161.3, 45.1-161.294 and 45.1-161.305 of the Code of Virginia.

Historical Notes

Derived from VR480-05-1.2 § 8.13, eff. July 19, 1989; amended, Virginia Register Volume 14, Issue 17, eff. July 1, 1998.

4VAC25-40-1230. Maintaining regulators.

Gauges and regulators used with oxygen or acetylene cylinders shall be kept clean and free of oil and grease.

Statutory Authority

§§ 45.1-161.3, 45.1-161.294 and 45.1-161.305 of the Code of Virginia.

Historical Notes

Derived from VR480-05-1.2 § 8.14, eff. July 19, 1989.

4VAC25-40-1240. Tank valves to be kept closed.

Valves on oxygen and acetylene tanks shall be kept closed when the contents are not being used.

Statutory Authority

§§ 45.1-161.3, 45.1-161.294 and 45.1-161.305 of the Code of Virginia.

Historical Notes

Derived from VR480-05-1.2 § 8.15, eff. July 19, 1989.

4VAC25-40-1250. Securing cylinders.

Compressed gas or liquid gas cylinders shall be safely secured in an upright position.

Statutory Authority

§§ 45.1-161.3, 45.1-161.294 and 45.1-161.305 of the Code of Virginia.

Historical Notes

Derived from VR480-05-1.2 § 8.16, eff. July 19, 1989; amended, Virginia Register Volume 14, Issue 17, eff. July 1, 1998.

4VAC25-40-1260. Valves and gauges to be protected.

Valves and gauges on compressed gas cylinders shall be protected by covers when being transported and stored, or if a hazard from falling material exists when used.

Statutory Authority

§§ 45.1-161.3, 45.1-161.294 and 45.1-161.305 of the Code of Virginia.

Historical Notes

Derived from VR480-05-1.2 § 8.17, eff. July 19, 1989; amended, Virginia Register Volume 14, Issue 17, eff. July 1, 1998.

4VAC25-40-1270. Use of gauges, regulators and valves.

Pressure gauges, regulators, and reverse flow check valves shall be used on all compressed air and gas cylinders and shall be maintained in safe working condition.

Statutory Authority

§§ 45.1-161.3, 45.1-161.294 and 45.1-161.305 of the Code of Virginia.

Historical Notes

Derived from VR480-05-1.2 § 8.18, eff. July 19, 1989.

4VAC25-40-1280. Boiler equipment and maintenance.

Boilers shall be equipped and maintained as follows:

1. Boilers shall be equipped with guarded, well-maintained water gauges and pressure gauges placed so that they can be observed easily. Water gauges and pipe passages to the gauges shall be kept clean and free of scale and rust;

2. Boilers shall be equipped with automatic pressure-relief valves; valves shall be opened manually at least once a week to determine that they will function properly;

3. Boiler installations shall be provided with acceptable safety devices to protect against hazards of flame outs, fuel interruptions, and low water level; and

4. Blowoff valves shall be piped outside the building and shall have outlets so located or protected that persons passing by, near, or under them will not be scalded.

Statutory Authority

§§ 45.1-161.3, 45.1-161.294 and 45.1-161.305 of the Code of Virginia.

Historical Notes

Derived from VR480-05-1.2 § 8.19, eff. July 19, 1989; amended, Virginia Register Volume 14, Issue 17, eff. July 1, 1998.

4VAC25-40-1290. Welding operations.

Welding operations shall be shielded and well-ventilated.

Statutory Authority

§§ 45.1-161.3, 45.1-161.294 and 45.1-161.305 of the Code of Virginia.

Historical Notes

Derived from VR480-05-1.2 § 8.20, eff. July 19, 1989.

4VAC25-40-1300. (Repealed.)

Historical Notes

Derived from VR480-05-1.2 §§ 9.1, 9.2, eff. July 19, 1989; repealed, Virginia Register Volume 14, Issue 17, eff. July 1, 1998.

Website addresses provided in the Virginia Administrative Code to documents incorporated by reference are for the reader's convenience only, may not necessarily be active or current, and should not be relied upon. To ensure the information incorporated by reference is accurate, the reader is encouraged to use the source document described in the regulation.

As a service to the public, the Virginia Administrative Code is provided online by the Virginia General Assembly. We are unable to answer legal questions or respond to requests for legal advice, including application of law to specific fact. To understand and protect your legal rights, you should consult an attorney.