1.1 This specification covers mechanical end-face seals for centrifugal and positive displacement pumps for shipboard use.
1.2 The following types of seals are not included in this specification: lip seals, oil seals, circumferential seals, or labyrinth seals.
1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. A companion hard metric standard is in the process of preparation.
1.4 Special requirements for U.S. Navy Shipboard Pump Applications are included in Supplement S1.
This specification covers mechanical end-face seals for centrifugal and positive displacement pumps for shipboard use. Mechanical seals shall be classified by type, grade, and class. Types: type A - inside single mounted seals, type B - outside single mounted seals, type C - double seals, type D - tandem seals, type E - gas seal, and type F - special arrangement/applications vacuum or gas seal. Grades: grade 1 - basic end face seal, grade 2 - cartridge seal, and grade 3 - split seal. Classes: class 0 - nonsplit seal assembly, class 1 - partial split seal assembly, solid gland, class 2 - partial split seal assembly, split gland, class 3 - fully split seal assembly, solid gland, and class 4 - fully split seal assembly, split gland. Seal life shall be defined in terms of the time period in which the mechanical seal functions properly under its specified service.
SDO | ASTM: ASTM International |
Document Number | F1511 |
Publication Date | May 1, 2009 |
Language | en - English |
Page Count | 26 |
Revision Level | 09 |
Supercedes | |
Committee | F25.11 |