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  2. Pella (company) - Wikipedia

    en.wikipedia.org/wiki/Pella_(company)

    In 1992, Pella entered the national retail market with windows and patio doors, adding select lumberyard distribution in 1994. In 2001, Pella introduced Pella Design Centers to mainstream market customers, as a “ store-within-a-store inside Lowe's stores and staffed by Lowe's employees.

  3. Air flow meter - Wikipedia

    en.wikipedia.org/wiki/Air_flow_meter

    An air flow meter is a device similar to an anemometer that measures air flow, i.e. how much air is flowing through a tube. It does not measure the volume of the air passing through the tube, it measures the mass of air flowing through the device per unit time, though Thus air flow meters are simply an application of mass flow meters for the ...

  4. Piping and instrumentation diagram - Wikipedia

    en.wikipedia.org/wiki/Piping_and_instrumentation...

    Example of a single industrial control loop; showing continuously modulated control of process flow. Piping and instrumentation diagram of pump with storage tank. Symbols according to EN ISO 10628 and EN 62424. A more complex example of a P&ID. A piping and instrumentation diagram (P&ID) is defined as follows:

  5. Louver - Wikipedia

    en.wikipedia.org/wiki/Louver

    Modern louvers are often made of aluminum, metal, wood, or glass.They may be opened and closed with a metal lever, pulleys, or through motorized operators. [3]The Australian Standard specifies requirements for the construction of buildings using louver in bushfire-prone areas in order to improve their resistance to bushfire attack from burning embers, radiant heat, flame contact and ...

  6. Blower door - Wikipedia

    en.wikipedia.org/wiki/Blower_door

    The blower door fan is temporarily sealed into an exterior doorway using the door panel system. All interior doors are opened, and all exterior doors and windows are closed. HVAC balancing dampers and registers are not to be adjusted, and fireplaces and other operable dampers should be closed.

  7. Sliding glass door - Wikipedia

    en.wikipedia.org/wiki/Sliding_glass_door

    Sliding glass door frames are often made from wood, aluminum, stainless steel, or steel, which also have the most strength. The most common material is PVC plastic. Replacement parts are most commonly needed for the moving-sliding parts of the door, such as the steel rollers that glide within the track and the locking mechanisms.