When a toilet is flushed, the wastewater flows into a septic tank or sewage system and from there to a sewage treatment plant. A flush toilet may be colloquially called a lavatory, water closet (abbreviated W.C.), loo, comfort room (abbreviated C.R.), and many other names.
N verify (what is: Y/N?) Infobox references Polyvinylidene fluoride, or polyvinylidene difluoride (PVDF) is a highly non-reactive and pure thermoplastic fluoropolymer produced by the polymerization of vinylidene difluoride. PVDF a synthetic resin produced by the polymerization of vinylidene fluoride (CH 2 =CF 2). A tough plastic that is resistant to flame, electricity, and attack by most chemicals,... Sigma-Aldrich offers Aldrich-427152, Poly(vinylidene fluoride) for your research needs.
A variable-frequency drive (VFD) (also termed adjustable-frequency drive, variable-speed drive, AC drive, micro drive or inverter drive) is a type of adjustable-speed drive used in electro-mechanical drive systems to control AC motor speed and torque by varying motor input frequency and voltage.he VFD controller is a solid-state power electronics conversion system consisting of three distinct sub-systems: a rectifier bridge converter, a direct current (DC) link, and an inverter. Voltage-source inverter (VSI) drives (see 'Generic topologies' sub-section below) are by far the most common type of drives.