PRO-QUIP, INC.
Volume 1, Issue 1
JUNE,2012
NEWS FOR KNOWLEDGE
What are Thermocouples and RTDs?
INSIDE THIS
ISSUE:
What are Thermocouples
and RTD’s?
1
Website of the Month
2
Flowserve Worcester
Controls
3
Pro-Quip Entering 20th
Year
4
Major
Components of
TWIP:
*Condensing Pot
*Connecting Piping
*Isolating Valves
*Probe Column
*Column Drain and
Drain Valve
*Electronic Control
Unit
*Condensing Pot
Drain
Thermocouples are
based upon an effect
called galvanic action.
Whenever two different
metals come in contact, a
very small voltage
(millivolts) is generated.
The amount of voltage
depends upon the metals
in contact and the
temperature at the point
of metal contact.
Increasing the junction
(point of contact)
temperature increases the
voltage level generated.
A thermocouple is two
wires of different metals
fused (joined) together at
the point where
temperature is to be
measured. The open ends
of the wires are attached
to a device which detects
the voltage level
generated at the fused
end and converts it to a
temperature value.
Resistance Temperature
Detectors (RTD’s) is
another device used to
measure temperature.
They usually consist of a
very small piece of metal
whose electrical
resistance changes in a
predictable way with
changing temperature.
RTD’s are typically more
expensive and slightly
more accurate than
thermocouples. Platinum
is the metal most
commonly used in RTDs
because of the linearity of
its change in resistance
with temperature. Contact
your local Pro-Quip
representative with any
applicable needs!
Turbine Water Induction Protection (TWIP)
Turbine Water Induction
Protection (TWIP) is the broad
category of equipment that is
installed to prevent water
damage to steam turbines.
this issue, and the first
standard was issued in 1972.
ASME publication ASME
TDP-1-1998 is titled
“Recommended Practices for
the prevention of Water
Any connection to the turbine is Damage to Steam Turbines
a potential source of water either used for Electric Power
by induction from external
Generation”. This practice
equipment or by accumulation of covers the design, operation,
condensed steam. Steam
inspection, testing, and
turbine damage by water
maintenance of these
induction is a costly economic,
systems.
safety and reliability concern.
The American Society of
TWIP equipment is installed in
Mechanical Engineers (ASME)
the following power plant
formed a committee to address systems:
Main steam system, piping and
drains; Reheat steam systems,
piping and drains; Reheat
attemperating system; Turbine
extraction systems, piping and
drains; Feedwater heaters, piping
and drains; Turbine drain systems;
Turbine steam seal system, piping
and drains; Main steam
attemperator sprays; Start-up
systems; and Condenser steam
and water dumps.
Please ask your Pro-Quip
representative about Fossil Power
Systems TWIP equipment if you
have any needs!
page 2
PRO-QUIP, INC.
NEWS FOR KNOWLEDGE
Website of the Month – www.weyvalve.com
WEY Valve is a recognized
unique features and design
maintenance is required.
WEY
leader for High Performance
concepts provide a level of
valve has developed a
Knife Gate valve products that
performance previously thought
comprehensive line of High
provide the tightest bi-
unattainable from a knife gate
Performance Knife Gate valves
directional shut off in the
valve. These features and
to service virtually all
industry. WEY valve products
design concepts are put into an
industries. To learn more about
are designed to outperform
extremely maintenance friendly
specific valve models and
conventional style knife gate
package. Wey products will
applications please visit this
valves. Wey valves solve
reduce process down time
website as well as ask your Pro-
jamming issues, prevent leakage
through longer service life and
Quip Representative!
downstream, and stop packing
quicker turn around when
leakage problems. Their
“It is highly
resistant to
thermal
degradation as
well as attack by
both organic and
aqueous
environments.”
What Is PEEK?
Polyether ether ketone
“?
(PEEK) is a colorless
organic polymer
thermoplastic used in
engineering applications.
PEEK is a semicrystalline
thermoplastic with
excellent mechanical and
chemical resistance
properties that are
retained to high
temperatures.
It is highly resistant to
thermal degradation as
well as attack by both
organic and aqueous
environments.
Because of its robustness,
PEEK is used to fabricate
items used in demanding
applications, including
bearings, piston parts,
pumps, HPLC columns,
compressor plate valves,
and cable insulation.
It is one of the few
plastics compatible with
ultra-high vacuum
applications. It is
extensively used in the
aerospace, automotive,
teletronic, and chemical
process industries.
ATTENTION AQUARIAN USERS!
Fossil originated the
Aquarian line of Boiler
Water/Steam Level
products that have been
sold by Yarway™ for 17
years. Fossil now sells
both new and replacement
parts and systems though
authorized representatives
like Pro-Quip! Fossil can
retrofit Clark Reliance
Probes. Using the
Aquarian braze
technology this probe is
designed to retrofit Clark
Reliance Model FG, ZG, V
and T style probes (not
FM approved). Also,
Fossil makes Ported
Gauge Repair Kits
designed to fit the Yarway
Color-Port Gauge. Please
ask your Pro-Quip
representative for more
information.for more
information. Attention
Aquarian Users
Fossil originated the ells
both new and replacement
parts and systems
directly. Please for more
information.
PRO-QUIP, INC.
page 3
NEWS FOR KNOWLEDGE
Flowserve’s Worcester Controls
From standard flanged
ball valves to both
ANSI and DIN
specifications in
reduced and full bore, to
three piece valves for
cryogenic, high
pressure, steam, diverter
or sampling duty, or
high integrity valves,
multi-way designs,
modulating controls or
customized solutions to
specific user problems,
Worcester Controls
supplies valves
throughout the world
for virtually any
application. The metal
seat technology used for
Worcester valves has
opened a new chapter in
the history of
modulating control. It
combines the simplicity
of ball valves with the
revolutionary
characterized seat
concept. The combination
offers state of the art
modulating control valves
that are specifically
designed for today’s
automated production
needs. The new generation
of Worcester valves
virtually eliminates the
problems associated with
traditional control valves.
Ask your Pro-Quip
representative for more
information!
For Your Information–Rockwell Scale
The Rockwell scale is a
hardness scale based on
the indentation hardness
of a material. The
Rockwell test
determines the hardness
by measuring the depth
of penetration of an
indenter under a large
load compared to the
penetration made by a
preload.
There are different
scales, denoted by a
single letter, that use
different loads or
indenters. The result is a
dimensionless number
noted as HRA, where A
is the scale letter.
As previously stated,
hardness numbers have
no units and are
commonly given in the
R, L, M, E and K
scales. The higher the
number in each of the
scales means the harder
the material. As an
example, ceramics can
be 6 to 8 times harder
than stainless steel thus
ceramics will be utilized
in abrasive service
applications.
New Product Line For Pro-Quip: InterApp
Pro-Quip has partnered
with InterApp who
specializes in all types of
Butterfly Valves for
numerous industries!
Headquartered in
Rotkreuz, Switzerland,
InterApp operates their
own research and
development as well as
their manufacturing,
assembly and testing
facilities in Switzerland
and in Spain. With more
than 40 years of
experience, they set
technological standards
with their proprietary
valve and fluid
technology. For more
information, contact your
local Pro-Quip
representative or visit
their website at
www.interapp.net.
“ceramics can be
6 to 8 times
harder than
stainless steel
thus ceramics will
be utilized in
abrasive service
applications.”
page 4
PRO-QUIP, INC.
P R O - QU IP , I N C .
4 Mark Road
Kenilworth, NJ
07033
Phone:
(973) 897-8950
Fax:
(908) 349-8963
E-Mail:
jason@pro-quip.com
We’re on the Web!
See us at:
www.pro-quip.com
NEWS FOR KNOWLEDGE
Pro-Quip Entering 20th Year!
Pro-Quip is now entering
th
its 20 Year as of this past
st
April 1 , 2012! The
company was started by
Paul D’Andrea and Chris
Giust in north New Jersey.
Their mission was and still
is to provide top quality
customer service along
with delivering outstanding
process control products.
Pro-Quip has now
expanded to 11
employees. We service
the Power, PetroChemical, Chemical,
Pharmaceutical, Food &
Beverage, Water and
Wastewater Industries.
We also serve the
following states: New
York, New Jersey,
Delaware, Pennsylvania
(Eastern/Central),
Maryland and Virginia. We
continue to strive to be the
best at what we do and
provide all of our
customers with process
control solutions.