MIL-V-18436F
6 November 1987
SUPERSEDING
MIL-V-18436E
2 March 1981
MILITARY SPECIFICATION
VALVES, CHECK: BRONZE, CAST-IRON, AND STEEL BODY
This specification is approved for use by the Naval Facilities
Engineering Command, Department of the Navy, and is available for use
by all Departments and Agencies of the Department of Defense.
1. SCOPE AND CLASSIFICATION
1.1 Scope. This specification covers bronze, cast-iron, and steel body
check valves with regrinding, renewable, or regrinding-renewable disks and
seats.
1.2 Classification. The check valves shall be of the following groups,
types, styles, trim, end connections, sizes, and classes, as specified
(see 6.2).
Group A - Bronze-body valves (1/8-4 inch, see table I).
Group B - Cast-iron body valves (1/4-24 inch, see table II).
Group C - Steel-body valves (1/4-12 inch, see table III).
Type I - Lift check, horizontal installation.
Type IS - Lift check, spring-loaded, horizontal installation.
Type II - Lift check, vertical installation.
Type IIS - Lift check, spring-loaded, vertical installation.
Type III - Swing check.
Type IV - Tilting-disk check.
Type V - Butterfly, spring-loaded, dual-disk check.
Style A - Disk type, swing- or post-guided flow control device
(types I, IS, II, IIS, and III).
Style B - Piston type, cylinder-guided, air-cushioned flow control
device (types I and II).
Style C - Ball type flow control device (types I and II).
Beneficial comments (recommendations, additions, deletions) and any pertinent
data which may be of use in improving this document should be addressed to:
Commanding Officer (Code 156), Naval Construction Battalion Center, Port
Hueneme, CA 93043-5000, by using the self-addressed Standardization
Document Improvement Proposal (DD Form 1426) appearing at the end of this
document or by letter.
AMSC N/A FSC 4820
DISTRIBUTION STATEMENT A. Approved for public release; distribution is
unlimited.
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