MIL-PRF-13789E
3.3.3.3 Grooved. All grooved connections shall be in accordance with AWWA C606-97, table
4 (Cut grooving dimensions - Steel, aluminum, brass, and other metallic pipe of IPS dimensions)
3.3.4 Dimensions. The strainer shall not exceed 36.00 ± 0.25-inches in overall length for 6.00-
inch and smaller connections, or 48.00 ± 0.25-inches for connections over 6.00-inches.
3.4 Performance.
3.4.1 Working and hydrostatic pressures. The strainer shall conform to the working and
hydrostatic pressures listed in table II.
a. The strainer shall not leak or sweat, when subjected to the maximum working or
hydrostatic pressure.
b. The strainer basket shall be easily removed and not collapsed or bulged when
subjected to the maximum hydrostatic pressure and the surging action during
operating conditions.
TABLE II. Working and hydrostatic pressure requirements
Requirement
Class
125/1
150/2
250/1
300/2
600/2
Working pressure for water,
oil, or gas at 100 °F (psi)-
175
275
400
720
1440
Hydrostatic pressure (psi)-
270
410
600
1080
2160
/1 Pressures in accordance with ASME B16.1
/2 Pressures in accordance with ASME B16.5
3.4.2 Environmental.
3.4.2.1 Storage temperature. The strainer shall perform as specified after storage at any
ambient temperature from -60 to 160 degrees Fahrenheit (°F).
3.4.2.2 Operating temperatures. The strainer shall perform as specified at ambient
temperatures from -40 to 125 °F.
3.5 Support and ownership requirements.
3.5.1 Identification marking. Identification markings shall be permanent, legible, and shall
include as a minimum the manufacturer's identification code, the manufacturer's part number, and
the national stock number (NSN) as provided.
3.5.2 Materials. The materials selected for construction are the responsibility of the
contractor. The materials shall be of sufficient durability to meet all the performance requirements
as specified herein. The material shall have no adverse effect on the health of personnel when
used for its intended purpose.
3.5.2.1 Deterioration prevention and control. The strainers shall be fabricated from compatible
materials, inherently corrosion resistant or treated to provide protection against the various forms
of corrosion and deterioration to which the material is susceptible.
4
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