Trap Seal Primer Devices – Potable Water Supplied, Drainage Types and Electronic Design Types

 

The ASSE Standards are the nationally recognized standard for trap primers. The ASSE Standard is referenced in Plumbing Codes. Trap Primers are designed primarily to supply water to floor drain traps which have infrequent use and in which water evaporation would allow sewer gas to enter the premises.

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ASSE 1018

This method of priming traps uses a potable water supply to the trap primer device. The devise shall provide intermittent discharge to the trap in response to the flow or pressure changes in the supply line.

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ASSE 1044

The type of device covered by the ASSE Standard is designed to supply water to a drain trap to provide and maintain its water seal using a supply from a fixture drain line, ballcock, or flushometer valve tailpiece or an electronic primer device. The rate of water flow to the trap can be fixed or adjustable.

There are four (4) types covered by the standard:
 

a)

Those which are installed on waste line tail pieces from fixtures, such as lavatories, sinks and similar fixtures where grease is not normally generated;
 

b)

Those which are used in conjunction with ballcock assemblies;
 

c)

Those which receive flow from flushometer valves; and
 

d)

Those electronics devices which discharge water automatically and which are upstream of the air gap or vacuum breaker.

 

Manufacturers

 

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Jay R Smith Mfg. Co.

www.jrsmith.com

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Josam Company

www.josam.com/catalog/line/TA

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Mifab Inc.

www.mifab.com/products-category/trap-seal-primers

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Wade Drains

www.wadedrains.com

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Watts Regulator Company

www.watts.com

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Zurn Industries, Inc.

www.zurn.com/Products/Building-Drainage/Traps-Primers-Specialties