| (II) The riser pipe break-away shall be designed to
direct the transfer hose from vertical to prevent binding or kinking
of the hose.
(8) In lieu of a minimum 12-inch nipple on a vertical
bulkhead, swivel-type piping (breakaway loading arm) may be installed.
The swivel-type piping shall meet all applicable provisions of the
rules in this chapter. The swivel-type piping may also be used for
loading, unloading, or product transfer, but shall not be used in
lieu of ESVs. The swivel-type piping shall be installed and maintained
according to the manufacturer's instructions.
(9) AFS may require additional bulkhead protection
if the installation is subject to exceptional circumstances or located
in an unusual area where additional protection is necessary to protect
the health, safety, and welfare of the general public.
(f) The bulkheads, internal valves, backflow check
valves, and ESVs shall be kept in working order at all times in accordance
with the manufacturer's instructions and the rules in this chapter.
If the bulkheads, internal valves, backflow check valves and ESVs
are not in working order in accordance with the manufacturer's instructions
and the rules in this chapter, the licensee or operator of the installation
shall immediately remove them from LP-gas service and shall not operate
the installation until all necessary repairs have been made.
(g) In addition to NFPA 58 §§5.11.6 and 6.11.6.1,
by February 1, 2003, rubber flexible connectors which are 3/4-inch
or larger in size installed in liquid or vapor piping at an existing
liquid transfer operation shall have been replaced with a stainless
steel flexible connector. Stainless steel flexible connectors shall
be 60 inches in length or less, and shall comply with all applicable
rules in this chapter. Flexible connectors installed at a new installation
after February 1, 2001, shall be stainless steel.
(h) If necessary to increase LP-gas safety, AFS may
require a pneumatically-actuated or electrically-actuated internal
valve equipped for remote closure and automatic shutoff through thermal
(fire) actuation to be installed for certain liquid and/or vapor connections
with an opening of 3/4 inch or one inch in size.
(i) Stationary LP-gas installations with individual
or aggregate water capacities of 4,001 gallons or more are exempt
from subsections (a) through (c) of this section provided:
(1) each container is filled solely through a 1 3/4
inch double back check filler valve installed directly into the container;
(2) at least one clearly identified and easily accessible
manually operated remote emergency shutoff device shall be located
between 25 and 100 feet from the point of transfer in the path of
egress to close the primary discharge valves in the containers; and
(3) the LP-gas installation is not used to fill an
LP-gas transport.
|
| Source Note: The provisions of this §9.143 adopted to be effective February 1, 2001, 26 TexReg 947; amended to be effective September 29, 2003, 28 TexReg 8318; amended to be effective September 1, 2005, 30 TexReg 4810; amended to be effective February 1, 2008, 33 TexReg 122; amended to be effective December 24, 2012, 37 TexReg 9913; amended to be effective January 6, 2020, 45 TexReg 127; amended to be effective July 18, 2022, 47 TexReg 4119 |
