2022HoseCatalog

CHOOSING A FIRE HOSE

APPLICATION Use these symbols to help you choose the best hose for your application.

HOW TO MEASURE A MALE FIRE HOSE THREAD Take a strip of paper about 1" wide and wrap it around the male thread snugly so that it overlaps. Where the two ends overlap, use a pin to pierce the paper so that there is a hole in both ends. Press your thumb against the paper so that the threads leave an impression. Remove the paper and measure the distance between the pinholes. This distance, divided by 3.1416, equals the thread O.D. Count the number of thread impressions showing on the paper and divide by the total width of the impressions (in inches). This figure is the pitch in threads per inch.

FORESTRY

MUNICIPAL

INDUSTRIAL

HOSE SIZE & END FITTINGS Below 1" I.D... Garden Hose Thread:

***Choose your couplings from the list below and insert the appropriate code.

Fire hoses under 1" I.D. are typi- cally found on small portable pumps and backpack pumps and come complete with garden hose thread end fittings for easy attachment to hose bibs and water thieves for filling.

Code Region

Description

O.D.

Pitch

BCST British Columbia Standard Thread & AMA Alberta Mutual Aid combined*

BAT BC & Alberta

2.990" 8

CSA Ontario

Canadian Standards Association 3.125" 5

NS1 Nova Scotia Nova Scotia Zone 1

3.234" 5 3.031" 7

QST Quebec

Quebec Standard Thread

Saskatchewan & Manitoba

Western Canadian Fire Underwriters Association

WCT

3.250" 6

1" & 1 1 ⁄ 2 " I.D... Forestry Instantaneous & NPSH Parallel Pipe Thread: In Canada, most 1" & 1 1 ⁄ 2 " I.D. fire hoses are supplied with either forestry instantaneous threads or NPSH parallel pipe threads. Forestry instantaneous ends are interchangeable (there are no male or female ends) and connections

*BAT threads are designed to function with both BCST and AMA fittings. To accomplish this, the BAT male is cut to suit the smallest thread O.D., which is the AMA fitting at 2.99", while the female coupling is machined to fit the largest I.D.

are made with a simple quarter-turn. NPSH straight iron parallel pipe threads often feature pin lugs or rocker lugs on the female end. In the USA and on international ships, thread on 1 1 ⁄ 2 " hose will most likely be NST, also known as NH or ANSI thread.

2 1 ⁄ 2 " I.D... Regional Thread:

For 2 1 ⁄ 2 " I.D. fire hose, threads can vary by region and so users need to ensure that the threaded fittings are compatible with the hydrant or standpipe to which the hose will be coupled. Mu- nicipalities and fire departments in different regions choose from a variety of available threads. Use the

Fire

thread measurement information and table provided to determine which thread you need.

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