Company Background

The company manufactures and distributes a range of pressure

Pressure

Pressure is the force per unit area applied in a direction perpendicular to the surface of an object. Gauge pressure is the pressure relative to the local atmospheric or ambient pressure.- Definition :...

 control devices for the oil

Oil

An oil is any substance that is liquid at ambient temperatures and does not mix with water but may mix with other oils and organic solvents. This general definition includes vegetable oils, volatile essential oils, petrochemical oils, and synthetic oils....

 and gas

Gas

Gas is one of the three classical states of matter . Near absolute zero, a substance exists as a solid. As heat is added to this substance it melts into a liquid at its melting point , boils into a gas at its boiling point, and if heated high enough would enter a plasma state in which the electrons...

 industry including adjustable choke valve

Choke valve

A Choke valve is a type of valve designed to create choked flow in a fluid. Over a wide range of valve settings the flow through the valve can be understood by ignoring the viscosity of the fluid passing through the valve; the rate of flow is determined only by the ambient pressure on the upstream...

s and hydraulic  stepping actuators.

In 1958, the company was founded as Best Industries. In 1977, Varco International purchased Best Industries and changed the name to Varco/Best Flow Products. In 1992, the Shaffer Company was purchased by Varco International and the product lines were merged.

Best Flow Products’ flagship adjustable choke valve

Choke valve

A Choke valve is a type of valve designed to create choked flow in a fluid. Over a wide range of valve settings the flow through the valve can be understood by ignoring the viscosity of the fluid passing through the valve; the rate of flow is determined only by the ambient pressure on the upstream...

 is the Maximum Performance Cage choke (MPC) which sets the industry standard for choke valve engineering. The valve features a patented seat wear monitor that detects washout in the sear sleeve before erosion can damage the body of the choke. Its patented closed cage completely encloses the areas of the cage which are susceptible to turbulence created by the pressure drop

Pressure drop

Pressure drop is a term used to describe the decrease in pressure from one point in a pipe or tube to another point downstream. "Pressure drop" is the result of frictional forces on the fluid as it flows through the tube. The frictional forces are caused by a resistance to flow. The main...

 and utilize principles of flow impingement to dissipate the energy of the flow stream, thereby extending the service life of the product by reducing cavitational and erosional wear within the valve. This design also has a secondary benefit of reducing noise levels in the choke to under 85 dBA

A-weighting

A Weighting curve is a graph of a set of factors, that are used to 'weight' measured values of a variable according to their importance in relation to some outcome. The most commonly known example is frequency weighting in sound level measurement where a specific set of weighting curves known as A,...

. For highly corrosive or erosive environments, tungsten carbide

Tungsten carbide

Tungsten carbide is an inorganic chemical compound containing equal parts of tungsten and carbon atoms. Colloquially, tungsten carbide is often simply called carbide. In its most basic form, it is a fine gray powder, but it can be pressed and formed into shapes for use in industrial machinery,...

 or inconel

Inconel

Inconel is a registered trademark of Special Metals Corporation that refers to a family of austenitic nickel-chromium-based superalloys. Inconel alloys are typically used in high temperature applications. It is often referred to in English as "Inco"...

throttling and plug components are utilized to provide the highest level of wear resistance possible.