Page 102 - Vessel Sanitation Program 2018 Construction Guidelines

VSP 2018 Construction Guidelines

entrapment issues; cover/grate secondary layer of protection; related sump
design; and features specific to the RECREATIONAL WATER FACILITY.

28.1.5 Alternate to Marking Field Fabricated Fittings
As an alternate to marking custom/shipyard constructed (field fabricated) drain
cover fittings, the owner of the facility where these fittings will be installed
must be advised in writing by the registered design professional of the
information set forth in section 7.1.1 of ASME A112.19.8-2007.

28.1.6 Accompanying Letter
A letter from the shipyard must accompany each custom/shipyard constructed
(field fabricated) drain cover fitting. At a minimum, the letter must specify the
shipyard, name of the vessel, specifications and dimensions of the drain cover,
as noted above, and the exact location of the RECREATIONAL WATER
FACILITY for which it was designed. The registered design professional’s
name, contact information, and signature must be on the letter.

28.1.7 Antientrapment/Antientanglement Requirements
See Table 28.1.7 for ANTIENTRAPMENT and ANTIENTANGLEMENT
requirements for drains and SUCTION FITTINGS in RECREATIONAL
WATER FACILITIES.

Table 28.1.7 ANTIENTRAPMENT Requirements for RECREATIONAL WATER
FACILITIES
(Does not include facilities designed with zero depth and drains not under direct suction)
Secondary
ANTI-
Option* Type Drainage/Recirculation System Cover Design ENTRAPMENT
1 GRAVITY Multiple drains (2 or more drains Standard design (not Alarm
only greater than 1 meter [3 feet] apart) compliant with ASME
A112.19.8)
2 GRAVITY Multiple drains (2 or more drains ASME A112.19.8 None
only greater than 1 meter [3 feet] apart) compliant cover

3 GRAVITY Single UNBLOCKABLE DRAIN Standard design (not Alarm
only (per ASME A112.19.8) compliant with ASME

4 GRAVITY Single UNBLOCKABLE DRAIN ASME A112.19.8 None
only (per ASME A112.19.8) compliant cover
5 GRAVITY Single BLOCKABLE DRAIN or ASME A112.19.8 GDS
only multiple drains (less than 1 meter compliant cover
[3 feet] apart)
6 SUCTION Multiple drains (2 or more drains ASME A112.19.8 None
FITTING per pump with drains greater than compliant cover
1 meter [3 feet] apart)
7 SUCTION Single UNBLOCKABLE DRAIN ASME A112.19.8 SVRS or APS
FITTING (per ASME A112.19.8-2007) compliant cover

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