MIL-DTL-3155D(SH)
TABLE VII. Classification of possible defects in accordance with ANSI/ASQ Z1.4.
Categories
Defects
Critical:
1
None defined.
Major:
101
Model and size of valve not as specified, or not packless type.
102
Thermostat damaged or not the specified model.
103
Materials defective or not as specified.
104
Operating bellows damaged or not protected as specified.
Failure to provide for easy removal of thermostat and replacement by
105
manually operable element.
106
Union connections (inlet and outlet) damaged or not as specified.
107
Thermostat capillary tubing kinked or not protected by armor.
108
Thermostat mounting assembly damaged or not as specified.
Thermostat dial adjustment damaged or not provided with a means of locking
109
at any setting in the operating range (Types L and R thermostats only).
110
Valve incomplete, parts missing or damaged.
Minor:
Marking, manufacturer s name or trademark missing, not permanent, illegible
201
or not as specified.
5. PACKAGING
5.1 Packaging. For acquisition purposes, the packaging requirements shall be as specified in the contract or
order (see 6.2). When packaging of materiel is to be performed by DoD or in-house contractor personnel, these
personnel need to contact the responsible packaging activity to ascertain packaging requirements. Packaging
requirements are maintained by the Inventory Control Point s packaging activities within the Military Service or
Defense Agency, or within the military service s system commands. Packaging data retrieval is available from the
managing Military Department s or Defense Agency s automated packaging files, CD-ROM products, or by
contacting the responsible packaging activity.
6. NOTES
(This section contains information of a general or explanatory nature that may be helpful, but is not mandatory.)
6.1 Intended use. Thermostatic-controlled steam valves are for Navy shipboard ventilation heaters where
service steam is available. These valves operate by self-regulating control, requiring no separate power source such
as electricity or compressed air.
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