PCV meaning in Chemistry ?

Answer: What is Pressure Control Valve mean?

A valve is a device or natural object that regulates, directs or controls the flow of a fluid (gases, liquids, fluidized solids, or slurries) by opening, closing, or partially obstructing various passageways. Valves are technically fittings, but are usually discussed as a separate category. In an open valve, fluid flows in a direction from higher pressure to lower pressure. The word is derived from the Latin valva, the moving part of a door, in turn from volvere, to turn, roll.

The simplest, and very ancient, valve is simply a freely hinged flap which swings down to obstruct fluid (gas or liquid) flow in one direction, but is pushed up by the flow itself when the flow is moving in the opposite direction. This is called a check valve, as it prevents or "checks" the flow in one direction. Modern control valves may regulate pressure or flow downstream and operate on sophisticated automation systems.

Valves have many uses, including controlling water for irrigation, industrial uses for controlling processes, residential uses such as on/off and pressure control to dish and clothes washers and taps in the home. Even aerosol spray cans have a tiny valve built in. Valves are also used in the military and transport sectors. In HVAC ductwork and other near-atmospheric air flows, valves are instead called dampers. In compressed air systems, however, valves are used with the most common type being ball valves.

reference

Full Form	Category
Punta Chivato	Airport Code
Putnam Convertible Opportunities & Income Trust	Business
Parallel Computer Vision	Business
Petty Cash Voucher	Business
Pressure Control Valve	Chemistry
Presbyterian Children's Village	Community
Peace Corps Volunteer	Community
Pacific Community Ventures	Community
Power Commander V	General
Positive Crankcase Ventilation	General
Personal Commuting Vehicle	General
Piaggio Commercial Vehicles	General
Pollution Control Valve	General
Pajero Club of Victoria	General
Porsche Club of Victoria	General
Pedestrian Controlled Vehicle	General
Passenger Commercial Vehicle	General
Passenger Car Vehicle	General
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Premium Comfort Valve	General
Peugeot Club Vietnam	General
Passo Corto Virtuale	General
Porsche Centre Vancouver	General
Proportioning Control Valve	General
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Personal Commissionable Volume	General
Positive Crankcase Ventialtion	General
Poly Canyon Village	General
Powered Combat Vest	General
Platelet Count Value	General
Positive Crankcase Ventelation	General
Positive Crankcase Ventillation	General
Positive Crackcase Ventilation	General
People Creating Value	General
Post Crank Ventilation	General
Partido Comunista Vasco	Governmental
Passenger Carrying Vehicle	Governmental
Passenger Carrying Vehicles	Governmental
Permanent Capital Vehicle	Governmental
PALAKKODU	Indian Railway Station
Paiement Contre Vérification Or Percevoir	International
Pressure- Controlled Ventilation	Medical
Pneumococcal Conjugate Vaccine	Medical
PolyCythemia Vera	Medical
Polypoidal Choroidal Vasculopathy	Medical
Packed Cell Volume	Medical
Pneumococcal Conjugate Vaccines	Medical
Precheck Verification	Space Science
Purge Control Valve	Space Science