46 C.F.R. § 63.15-5 Strainers.
Title 46 - Shipping
(a) Strainers must be installed in the fuel supply line. Each strainer must be self-cleaning, fitted with a bypass, or be capable of being cleaned without interrupting the fuel oil supply. (b) The strainer must not allow a quantity of air to be trapped inside which would affect the rate of fuel flow to the burner or reduce the effective area of the straining element. (c) The strainer must meet the requirements for strainers found in ANSI/UL 296 and the requirements for fluid conditioner fittings found in §56.15–5 of this chapter.
Title 46: Shipping
PART 63—AUTOMATIC AUXILIARY BOILERS
Subpart 63.15—General Requirements
§ 63.15-5 Strainers.
