These are regular floor drains and should not be confused with the Smith SANI-CEPTOR^® with funnel, because the very features which make FUNNEL-CEPTORS outstanding as regular floor drains, such as adjustable strainer heads and adjustable tops, make it impossible to eliminate pockets and crevices. For that reason, we do not recommend them with acid resistant coated interior.

The advantage of this type drain is that the funnel prevents splashing of the discharged waste, while the exposed portion of the grate functions as a floor drain. The Smith method of mounting the funnel allows it to be centered on the grate or placed in any other desired location. Round funnels are used for single pipe discharge (Fig. 23). Oval funnels are usually used for multiple pipe discharge (Fig. 24). Should these drains be used to receive indirect waste from food handling equipment, we recommend that they be specified with galvanized body, as this gives the maximum in sanitation for this type of drain.

The fixed air gap fitting provides a rigid connection to the waste system through a properly sized air gap. One application is for use in the waste line below fixtures which require protection from contamination such as vegetable or food preparation sinks (Fig. 25). If a sewer back-up occurs, the discharge will flow out onto the floor, thus preventing contamination of the fixture. Fixed air gaps are also used when connecting a potable water supply to process equipment or appliances such as the water supply to a tank which contains contaminated liquid. The air gap prevents contaminated liquid backflow into the potable water supply.

These are indirect waste receptors designed expressly to conform to the requirements of plumbing codes which do not permit the condensate and waste flow from roof mounted refrigeration and other equipment to be discharged onto the roof area (Fig. 26). Design includes a high collar which prevents rainwater from entering the receptor and a secured strainer which eliminates the possibility of accidental removal and subsequent line stoppage. ROOF-CEPTORS are installed the same as a regular roof drain, except under conditions in which plumbing codes may require that the receptor be provided with a trap. Accessories for installation are the same as for roof drains, and the type used depends on the type of roof construction. Please refer to Roof Drain Section for details.