ORIFICE SHIELDS

STF-106D Orifice Shield 1.25-1.50 (STF-106D-1.25-1.50)
STF-106D Orifice Shield 2.00 (STF-106D-2.00)

Sim/Tech Filter currently offers two orifice shield designs. The STF-106D is designed for systems that have discharge holes that point down. It also provides a solid surface in the middle to diffuse effluent spray for situations where erosion may be of concern such as drain holes in a pressurized chamber system. The STF-106TDS is designed for systems that have discharge holes that point up.

Why use orifice shields?

Sim/Tech Filter orifice shields are designed to protect the discharge holes in pressurized systems from the outside. Most of these systems are designed with specific flow-rates, pressure heads, etc. to obtain “even distribution” in the drain field and thus allow for proper treatment. Much like our pressure filter prevents debris from obstructing the discharge holes from the inside, our orifice shields prevent blockage on the outside. As shown in the top picture to the left, drain media can block the small discharge holes, throwing the whole design and operation of a system out of whack. The bottom picture to the left shows our standard orifice shield installed on the lateral piping of a system. The orifice shield creates a protective void between the drain media and the discharge hole. The design allows the discharge hole to spray effluent into the shield where the much larger open area of the shield keeps the hole discharging at its designed flow rate.

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ORIFICE SHIELDS

Why use orifice shields?

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