WW-H-191E
for type II heater shall be a floating head with a one-piece flanged bonnet or flanged shell cover, as applicable. All flanged joint(s) shall be provided with metal jacketed or nonasbestos composition gasket(s).
3.8.5 Saddle support. Unless otherwise specified (see 6.2), saddle support shall be provided.
3.8.6 Impingement protection. Impingement baffle shall be provided at the steam inlet nozzle.
3.8.7 Nozzles. Nozzles, 2 inches (50 mm) Iron Pipe Size (IPS) and smaller, shall be a female pipe thread connection. Nozzles, 2.5 inches (65 mm) IPS and larger, shall be flanged. Unless otherwise specified (see 6.2), nozzle orientation and location shall be in accordance with manufacturer's standard practice.
3.8.8 Vent and drain. A 0.75-inch (20 mm) IPS vent and drain shall be provided.
3.8.9 Instrument connections. A 0.75-inch (20 mm) IPS pressure gage and thermometer connection shall be provided on the pipe stub portion of the flanged nozzles.
3.9 Performance. When connected to the specified source of steam supply, the heater shall be capable of providing a continuous flow of hot water at the rated flow and temperature as specified herein (see 3.7).
3.10 Lifting and tiedown attachments. When specified (see 6.2), the heaters shall be equipped with lifting and tiedown attachments. Lifting and tiedown attachment shall conform to type II or type III of MIL-STD-209. A nonferrous transportation plate shall be provided and mechanically attached to the heaters. Transportation plates shall be inscribed with a diagram showing the lifting attachments and lifting slings, the capacity of each attachment, and the required length and size of each sling cable. A silhouette of the item furnished shown the center of gravity shall be provided on the transportation plate. Tiedown attachments may be identified by stenciling or other suitable marking. Tiedown marking shall clearly indicate that the attachments are intended for the tiedown of the heaters on the carrier when shipped.
3.11 Cleaning, treatment, and painting. Surfaces normally painted in good commercial practice shall be cleaned, treated, and painted as specified herein. The color of the finish coat, conforming to FED-STD-595, shall be as specified (see 6.2). Surfaces to be painted shall be cleaned and
dried to ensure that they are free from contaminants such as oil, grease, welding slag and spatter, loose mill scale, water, dirt, corrosion product, or any other contaminating substances. As soon as practicable after cleaning and before any corrosion product or other contamination can result the surfaces shall be prepared or treated to ensure the adhesion of the coating system. The painting shall consist of at least one coat of primer and one finish coat. The primer shall be applied to a clean, dry surface as soon as practicable after cleaning and treating. Painting shall be
with manufacturer's current materials according to manufacturer's current processes and the total dry film thickness than be not less than 2.5 mils (64 mm) over the entire surface. The paint shall be free from runs, sags, orange peel, or other defects.
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