Water Handling Equipment Guide - National Wildfire Coordinating ...

WATER DELIVERY COMPONENTS AND ACCESSORIES
Fittings and Connections
E. Fittings and Connections
1. General
Connections and fittings considered in this
Guide are those that are normally connected
by hand or spanner wrenches. Threads are
varied, and each fire agency has its own
standards. The NFPA standards are
prevalent. Construction materials are brass,
aluminum, or others as specified by
purchaser. Lugs are rocker, pin, or longhandled
type. Gaskets are usually located with
each female hose thread connection. Quickconnect
type couplings are in service. Water
handling technical specifications are available
from the GSA website at fss.gsa.gov/fire.
2. Lugs, threads, couplings, and gaskets
a. Lugs
Pin hole lug
The photograph illustrates the many
variations found among lugs made by
different manufacturers. Other types of
lugs include the pin, pinhole, and long
handle. A knurled, nonslip surface is often
used on the base of a nozzle to assist in
breaking the connection. Two or three lugs
are required on the swivel section of
couplings, connections, valves, and wyes.
Lugs are acceptable, but not required, on
male coupling sections.
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