You can get a Plan Review by an architect at the Fire Marshalâs Office, and they have satellite offices all over the state.
Primary flow element. A primary flow element is the element of a flow meter that serves to indicate the quantity or velocity of flow. For example, in the case of an orifice flow meter, the differential pressure across the orifice plate is the primary flow element.
These meters are also very easy to install. The flow sensors can be mounted in vertical or horizontal pipes and normally only require a 1-1/2 or 2 NPT female inlet to the pipe. A hot-tap version of a flow sensor allows installation on a pressurized line as well as easy service without depressurization.f the only pipe available is a vertical pipe, a meter in-setter is often used. There are a variety of pipe connection options available for the different pipe materials, sizes and types often used in household plumbing. Most can accommodate meters up to 1-inch in size.