The refrigerant would flush out the contaminants and then evaporate ... and/or requiring the replacement of the impeller, diaphragm, O-rings, or valves. Pumps manufactured with Viton® or Teflon® ...

Flush valves and faucets with Hydro•X Power® technology generate and store energy from flowing water, eliminating the need for batteries or hardwiring. This self-sustaining hydropower system ...

A typical valve is shown in Figure 1. Operation: Conventional TXVs respond to four forces (see Figure 2). Force 1 — Thermal bulb pressure times the diaphragm effective area; this force acts on the top ...