MIL-C-15730M

Abstract

This specification covers lubricating oil, hydraulic oil, and fresh water coolers for Naval shipboard applications for which standards of resistance to shock and standards of construction are higher than for usual commercial marine use. <br>Coolers shall be of the following types and classes as specified (see <a>6.2</a>). (Type II has no class 1.) </span><pre> Type I - Shell and tube design, with the coolant circulated through the tubes, and the fluid to be cooled passed through the shell. Class 1 - Submarine, seawater cooled, seawater side subject to sea pressure for greater than 200-foot submergence, cyclic life stipulated. Class 2 - Submarine, seawater cooled, seawater side secured for greater than 200-foot submergence. Class 3 - Surface ship, seawater cooled. Class 4 - Submarine, fresh water cooled. Class 5 - Surface ship, fresh water cooled.</pre> <br> <strong>Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving this document should be addressed to: Commander, SEA 03R42, Naval Sea Systems Command, 2531 Jefferson Davis Hwy, Arlington, VA 22242-5160 by using the Standardization Document Improvement Proposal (DD Form 1426) appearing at the end of this document or by letter.</strong> <pre> Type II - Fabricated tube design, with the coolant circulated through the casing, and the fluid to be cooled passed through the tubes. Class 2 - Submarine, seawater cooled, seawater side secured for greater than 200-foot submergence. Class 3 - Surface ship, seawater cooled. Class 4 - Submarine, fresh water cooled. Class 5 - Surface ship, fresh water cooled.</pre> <br> <br><b><u>Intended Use:</u></b> The coolers described in this specification are intended for use on board Navy surface ships and submarines for cooling lubricating oil, hydraulic oil, and fresh water. No one cooler is intended to cool more than one of these three categories of fluid in any one application. The coolers are divided into two types according to their design and to whether the fluid to be cooled is the inner fluid or outer (see <a>1.2</a>). The coolers are also divided into five classes, according to whether they are for use on submarines or surface ships, whether they use seawater or fresh water as cooling medium, and whether they are to be subjected to seawater pressure at depths greater than 200 feet (see <a>1.2</a>). Coolers of type I may be of any class; coolers of type II may be of any class except class 1. <br>