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PRODUCT CODE: VB/VB VBH/VBH VBG/VBG
Our customers have grown to expect only the highest quality
products from PMC A Division of R-SCC. These constructions are designed to operate
in applications to withstand continuous temperatures as high as1600°F
(871°C).
Siliflex® has been used as high as 2325°F (1274°C) when
not subjected to flexing or abrasion. Siliflex is being used under conditions where beaded ceramic or sheathed thermocouples previously were necessary. Siliflex
was developed to be a Refrasil® equivalent product. Siliflex is produced
in an environment designed to reduce impurities so often found in silica fiber insulation. It is further tested for impurities prior to being applied
to the wire (or jacket). Thus virtually eliminating the possibility of a reaction
with the chromel leg occasionally experienced with competitive products of this
type.
Siliflex is flexible and less expensive that Ceramaflex® however,
since saturant is not used, it is not recommended for abrasive applications
without a metal overbraid covering. The Siliflex product contains a white viteous
silical fiber braid over each conductor and as a jacket over the parallel pair.
It is available in three different constructions to meet the rigors of a variety
of applications. Each design is also available with an optional red tracer
of one carrier of pre-dyed vitreous silical fiber to identify the negative
leg for ease of installation. The dye used is inorganic and contains no salts.
You will find our
qualified sales and engineering staff eager to assist in selecting a
design to meet the requirements of our specific application. Variations
of this construction are available upon request.
Product
Type |
Grade
of
Wire |
Gauge
Size |
Wire
Type |
Part
Numbers |
| Type
K |
Type
N |
|
VB/VB
|
THERMOCOUPLE
THERMOCOUPLE
|
16
20
|
Solid
Solid
|
K-VB/VB-16
K-VB/VB-20
|
N-VB/VB-16
N-VB/VB-20
|
|
VBH/VBH
|
THERMOCOUPLE
THERMOCOUPLE
|
16
20
|
Solid
Solid
|
K-VBH/VBH-16
K-VBH/VBH-20
|
N-VBH/VBH-16
N-VBH/VBH-20
|
|
VBG/VBG
|
THERMOCOUPLE
THERMOCOUPLE
|
16
20
|
Solid
Solid
|
K-VBG/VBG-16
K-VBG/VBG-20
|
N-VBG/VBG-16
N-VBG/VBG-20
|
|
|
Thermocouple
Type
|
Color
Code |
Initial
Calibration Tolerances |
| Wire
Alloys |
ANSI
Symbol |
+/-
Individual |
Temperature
Range |
Standard
Limits |
Special
Limits |
|
CHROMEL® (+) vs.
*ALUMEL® (-)
|
K |
White/White |
-330°F
(-200°C) to -165°F (-110°C)
-165°F (-110°C) to+32°F (+0°C)
+32°F (+0°C) to +545°F (+285°C)
+545°F (285°C) to +2300°F (+1250°C)
|
±
2%
± 4°F (2.2°C)
± 4°F (2.2°C)
± .75% |
±
2°F (1.1°C)
± .4% |
|
Nicrosil(+)vs. Nisi(-)
|
N |
White/White |
+32°F
(0°C) to +545°F (+285°C)
+545°F (285°C) to +2300°F (+1250°C)
|
±
4°F (2.2°C)
± .75% |
±
2°F (1.1°C)
± .4% |
|
| NOTE: |
Percent
limits apply directly to temperature in °C units, but for °F equivalents
are applied to the numbers of °F above or below the ice point (+32°F).
(i.e. Limit (°F) = (Temp. °F-32°F) x Percentage) |
 |
Thermocouple
wire cannot be expected to meet the limits of error at temperatures
below the ice point unless specified at time of purchase. |
| * |
Magnetic |
|
CHROMELŪ
and ALUMELŪ are registered trademarks of Hoskins Manufacturing Company. |
| Characteristics |
Insulation |
Jacket |
| Abrasion
Resistance |
Poor |
Poor |
| Moisture
Resistance |
Fair |
Fair |
| Solder
Iron Resistance |
Excellent |
Excellent |
| Service
Temperature |
1600°F(871°C)
continuous 2000°F (1093°C) single exposure |
1600°F(871°C)
continuous 2000°F (1093°C) single exposure |
| Flame
Test |
Non-flammable |
Non-flammable |
|
|
VB/VB is
the standard construction
(VT/VB
provides
optional red tracer on the negative leg)
VBH/VBH
provides a heavier wall of SILIFLEX for applications requiring
greater overall protection
(VTH/VBH
provides
optional red tracer in the negative leg)
VBG/VGB
provides
the heaviest wall for the most demanding applications
(VTG/VBGprovides optional red tracer in the negative leg)
|
|
Product
Type
|
Gauge
Size
|
Nominal
Insulation
Wall (inches)
|
Nominal
Jacket
Wall (inches)
|
Nominal
Diameter
(inches)
|
Approx.
Ship
Weight LBS.
per 1000 Ft.
|
|
VB/VB
VB/VB
|
16
20
|
0.017
0.017
|
0.020
0.020
|
.114
X .183
.095 X .145
|
21
10
|
|
VBH/VBH
VBH/VBH
|
16
20
|
0.017
0.017
|
0.020
0.020
|
.119
X.188
.100 X .150
|
22
11
|
|
VBG/VBG
VBG/VBG
|
16
20
|
0.019
0.019
|
0.020
0.020
|
.129
X .205
.110 X .165
|
23
12
|
|
|
| Pricing
Policy: |
Shipments
will be invoiced at PMC's prices in effect at time of shipment.
Quotations are given with an escalation clause and prices, terms,
and conditions are subject to change without prior notice. PMC will
however, make every attempt to hold to current quoted prices. All
prices are in United States currency, and shall be subject to correction
for errors, unless otherwise stated in writing to PMC. |
| Reels,
Spools & Coils: |
All
shipments, unless specified otherwise by PMC, are make on non-returnable
reels, spools or coils in one continuous length. |
| Shortages
& Returns: |
All
claims for shortage or incorrect material must be made within 10
days after receipt of the goods to which such claim pertains. Goods
may only be returned for credit within 1 month of the date of authorization.
Goods that are special in any way shall not be returned to PMC.
Material returned for any reason, without written authorization
will be refused a n returned at shipper's expense. A return request
must be processed through our Manchester, N.H. sales office. |
| Tolerances: |
Due
to allowances in manufacturing processes for wire, cable and similar
products, PMC-A Division of R-SCC reserves the right to ship variation
of ± 10% from the quantity of such goods ordered. Physical
tolerances shown are nominal. Shipping weights are an average
of all types of conductors and are listed for estimation only.
These weights can vary substantially due to different types of
spools, reels and/or conductors.
The
material contained in the document is presented in good faith
and believed to be reliable and accurate. However, because testing
conditions may vary and material quality or information that may
be provided in whole or part by others may be beyond our control,
no warranty, expressed or implied, is given PMC-A Division of
R-SCC can assume no liability for results obtained or damages
incurred through the application of the data tests presented.
Note: PMC-A Division of R-SCC reserves the right to substitute
an equal product on all registered trademark items.
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