ST. LOUIS (
April 1, 2011
) – Emerson (NYSE: EMR) today announced it has acquired full ownership of its Fisher Sanmar Limited joint venture from Sanmar Engineering Corporation, expanding the capabilities of Emerson Process Management in India.
Who founded Fisher Controls?
Company founder
William Fisher
was first inspired to create a control device after he and others spent hours trying to keep a city from being engulfed in flames. Fisher had moved to the United States from England at the age of 14. Upon reaching the United States, his family settled in Iowa.
Is Fisher part of Emerson?
Manufactured by Emerson
to meet the highest operational standards, Fisher Control Valves and Regulators are trusted across industries for safe, efficient, and intuitive control. As Emerson’s Impact Partner in the Rocky Mountain Area, we are proud to be your authorized Fisher product brand representative.
Where are Fisher valves made?
The Governor Road facility in Marshalltown, Iowa, USA
, encompasses more than 425,000 square feet, of which 90% is dedicated to parts machining, finishing, and assembly operations. Production activities within the facility are focused on engineered-to-order valves and parts.
How does a Fisher control valve work?
Fisher Control Valves, known for performance and reliability
The control valve manipulates a flowing fluid, such as gas, steam, water, or chemical compounds to compensate for the load disturbance and keeps the regulated process variable as close as possible to the desired set point.
What is a globe valve?
A globe valve
regulates flow in a pipeline
. It is used to control or stop the flow of liquid or gas through a pipe. Globe valves are named for their spherical body shape with the two halves of the body being separated by an internal baffle.
What is the use of control valve?
Control valves are used in many processes
to control flow, pressure, temperature or other variables
. The type of valve used will depend on the size of the pipe, the overall pressure that the system operates, the flowing media, process conditions, and other factors.
What is a valve stroke time?
It is
the time between the solenoid valve is energized (de-energized) and the piston (rod) of a cylinder is reached at the stroke end
.
How many types of control valves are there?
The
two types
of control valves are linear motion and rotary motion.
How much air does a control valve use?
Instrument Air Requirement for Instrumentation
Control valve (CV) – steady state condition:
1 scfm/valve
. Control valve (CV) – transient condition: 6.25 scfm/valve. Shut down valve (SDV) – steady state condition: 0. Shut down valve (SDV) – transient condition: 4.8 scfm/valve.
What is meant by butterfly valve?
Definition of butterfly valve
1 :
a valve consisting of two semicircular clappers hinged to a cross rib that permits fluid flow in only one direction
. 2 : a damper or valve in a pipe consisting of a disk turning on a bisecting axis.
What is bonnet valve?
A valve bonnet
covers the opening through which the internal parts are inserted
. The bonnet serves as the mounting base for the actuator. It includes the seal which prevents fluid leakage along the stem. The bonnet also contains the packing box.
What valve is best for throttling?
Among the most common valves, the
butterfly valve
is the most suitable for throttling. A full quarter turn can open or close the valve. For throttling to happen, it only needs to open a bit for the media to pass.
What are the three types of valve control?
- Snap Trim (also referred to as Quick-Opening trim)
- Nominal Trim (also referred to as Linear trim)
- Equal Percentage Trim.
Which type of control valve is used in steel industry?
Steel Industry Solutions –
Poppet Valves
ROSS poppet valves are the product of choice for the Steel Industry.
What is CV for a control valve?
Valve Flow Coefficient (Cv) is
the flow capability of a control valve at fully open conditions relative to the pressure drop across the valve
. It is defined as the volume of water (GPM in the US) at 60°F that will flow through a fully open valve with a pressure differential of 1 psi across the valve.
