Mich. Admin. Code R. 408.41875 - L.P. containers and equipment
Rule 1875.
(1)
Containers in use shall be in compliance with all of the following provisions:
(a) Each system shall have containers,
valves, connectors, manifold valve assemblies, and regulators of an approved
type.
(b) Filling of fuel
containers for trucks or motor vehicles from bulk storage containers shall be
performed not less than 10 feet from the nearest masonry-walled building, or
not less than 25 feet from the nearest building or other construction and, in
any event, not less than 25 feet from any building opening.
(c) Filling of portable containers or
containers mounted on skids from storage containers shall be performed not less
than 50 feet from the nearest building.
(d) All of the following provisions apply to
multiple container systems:
(i) Valves in the
assembly of multiple container systems shall be arranged so that replacement of
containers can be made without shutting off the flow of gas in the system. This
provision shall not be construed as requiring an automatic changeover
device.
(ii) Heaters shall be
equipped with an approved regulator in the supply line between the fuel
cylinder and the heater unit. Cylinder connectors shall be provided with an
excess flow valve to minimize the flow of gas in the event the fuel line
becomes ruptured.
(iii) Regulators
and low-pressure relief devices shall be rigidly attached to the cylinder
valves, cylinders, supporting standards, the building walls, or otherwise
rigidly secured, and shall be so installed or protected from the
elements.
(2)
When damage to LP-Gas systems from vehicular traffic is a possibility, the
employer shall ensure that precautions against such damage are taken.
(3) Piping, pipe and tubing fittings, and
valves used to supply utilization equipment within the scope of this standard
shall be acceptable for services as approved by the manufacture of the
equipment.
(4) Welding is
prohibited on containers.
(5)
Valves, fittings, and accessories connected directly to the container,
including primary shut off valves, shall have a rated working pressure of at
least 250 p.s.i.g. and shall be of material and design suitable for LP-Gas
service.
(6) Connections to
containers, except safety relief connections, liquid level gauging devices, and
plugged openings, shall have shutoff valves located as close to the container
as practicable.
(7) All cylinders
shall meet the provisions of the Department of Transportation Title 49 C.F.R.
Part 178, "Shipping Container Specifications," as adopted in
R
408.41802.
(8) When operational requirements make
portable use of containers necessary, and their location outside of buildings
or structures is impracticable, containers and equipment shall be permitted to
be used inside of buildings or structures in accordance with
R
408.41884(12), (13), and (16), and
the following rules:
(a) Systems utilizing
containers having a water capacity greater than 2 1/2 pounds, nominal 1 pound
LP-Gas capacity, shall be equipped with excess flow valves. Such excess flow
valves shall be either integral with the container valves or in the connections
to the container valve outlets.
(b)
Regulators shall be either directly connected to the container valves or to
manifolds connected to the container valves. The regulator shall be suitable
for use with LP -Gas. Manifolds and fittings connecting containers to pressure
regulator inlets shall be designed for not less than 250 p.s.i.g. service
pressure.
(c) Valves on containers
having water capacity greater than 50 pounds, nominal 20 pounds LP-Gas
capacity, shall be protected from damage while in use or storage.
(d) Aluminum piping or tubing shall not be
used.
(e) Hose shall be designed
for a working pressure of at least 250 p.s.i.g. Design, construction, and
performance of hose, and hose connections shall have their suitability
determined by listing by a nationally recognized testing agency. The hose
length shall be as short as practicable. Hoses shall be long enough to permit
compliance with spacing provisions of this rule and
R 408.41884(6),
(7), (8), (12), (13), and (16), without
kinking or straining, or causing hose to be so close to a burner as to be
damaged by heat.
(f) Containers
having a water capacity greater than 2 1/2 pounds, nominal 1 pound LP-Gas
capacity, connected for use shall stand on a firm and substantially level
surface and, when necessary, shall be secured in an upright position.
(g) The maximum water capacity of individual
containers shall be 245 pounds (nominal 100 pounds L.P. gas
capacity).
Notes
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No prior version found.