Coated Varflex Electrical Insulating Sleevings

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Varglas Viton® 231 Sleeving

Viton_Sleeving

Varglas Viton® 231 Sleeving is a braided fiberglass/modified Viton® composite with exceptional physical and electrical properties. It has excellent abrasion and cut-through resistance and offers improved flexibility throughout a wide operating temperature range. Its resistance to solvents, both aromatic and aliphatic; fuels, including JP-5; and oils, including Skydrol; place this fluoroelastomer above other available polymer-coated fiberglass braids.

Specifications

Varglas Viton® 231 Sleeving conforms to, and is listed on the Qualified Products List (QPL) for, MIL-l-3190/7, latest revision (Grade A), and exceeds the requirements of NEMA TF-1 and ASTM-D372.Under the component program of Underwriters Laboratories, Varglas Viton® 231 Sleeving complies with VW-1 flammability requirements under UL File #E53690. It is incorporated in systems work, per UL Safety Standard 1446, to facilitate product acceptance by UL.

Applications

Varglas Viton® 231 Sleeving is used in DC generators and motors to reduce arcing problems and elsewhere when the need to maintain a silicone-free environment is important. Its flame resistance and excellent resistance to abrasion make it ideally suited for the insulation of leads and connections of critical electrical components as well as for wire harnesses in areas where continuous operating temperatures run as high as 220°C. Varglas Viton®231 is also used in transformers where resistance to high impingement velocity oils is required and, generally, where better solvent and oil resistance is needed.

Sizes

AWG #24 through 3 ” l.D. Other sizes subject to inquiry.

Standard Color

Black, White & Natural.

Standard Packaging

Coils, spools or 36” lengths at manufacturer’s option, unless otherwise specified. There is no cutting charge for 36” lengths, but lengths other than 36” are subject to cutting charges. Sizes over 1” l.D. are generally supplied in 36” lengths.

Varglas Viton® Typical Properties

  Property Procedure Performance
Physical
  Tensile Strength, Coating ASTM-D412 2000 psi @ 24°C; 600 psi @ 149°C
  Ultimate Elongation, Coating ASTM-D412 150% @ 24°C; 75% @ 149°C
  Hardness, Coating ASTM-D2240 80 (Durometer, Shore A)
  Flexibility and toughness, Coating UL 1441 Passes (Penetration Test)
Chemical
  Resistance to Atmospheric Oxidation, Sun and Water   — Excellent.
  Resistance to Ozone Concentrations   — Unaffected at levels as high as 100 ppm
  Fungus Resistance MIL-E-5272 Passes
  Solvent*, Chemical and Oil Resistance MIL-I-3190/7 Passes (Excellent)
  * Do not use Ketone type solvents as a cleaning liquid for Varglas Viton® 231. We recommend using V.M. & P. Naphtha.
Electrical
  Dielectric Strength after 48/23/50:
  Grade A NEMA TF-1 7000v min. avg., 5000v min. indiv.
  Grade B NEMA TF-1 4000v min. avg., 2500v min. indiv.
  Grade C-1 NEMA TF-1 2500v min. avg., 1500v min. indiv.
 
  Dielectric Strength after 96/23/96:
  Grade A NEMA TF-1 80% of Original Value.
  Hydrolytic Stability after 336 hrs.
@ 70°C over Constant Water Reflux
MIL-l-3190/7 6000v min. avg.
Thermal
  Thermal Endurance MIL-l-3190/7
CLass 220°C (R)
  Brittleness Temperature ASTM-D350 -70°C
  Flame Resistance UL 1441 Passes (VW-1)
    ASTM-D350 Passes
    NEMA TF-1 Passes
    MIL-I-3190/7 Method A Passes
  Oxygen Index     — 85 °C.
  Radiation Resistance DuPont Bulletin E-37758 Up to 106 rads with little or no effect on physical properties.
  Smoke Density Rohm & Haas SD Test XP-2 Passes; test requires a minimum SDR4 of 15%.
Note:
  Information contained here is precise and reliable. However, being unique, each end-use should be evaluated to satisfy its specific requirements.

Standard Sizes

Sleeving sizes in the following table are based on the size of round conductors that will fit snugly into the product without distortion of the sleeving.

Wire Size Inside DIameter Wall Thickness (minimum)
 
(AWD)
  Maximum
Inches
Nominal
inches
Minimum
Inches
MM Size
(to .5mm)
MM - Dec.
Equivalent
  Grade A
Inches
Grade B
Inches
Grade C
Inches
No. 24   0.027 0.022 0.020 .5 0.01969   0.011 0.007 0.006
No. 22   0.032 0.027 0.025       0.013 0.007 0.006
No. 20   0.039 0.034 0.032       0.013 0.007 0.006
No. 19   0.044 0.038 0.036 1.0 0.03937   0.013 0.007 0.006
No. 18   0.049 0.042 0.040       0.015 0.007 0.006
No. 17   0.055 0.047 0.045       0.015 0.007 0.006
No. 16   0.061 0.053 0.051       0.015 0.007 0.006
No. 15   0.066 0.059 0.057 1.5 0.05906   0.015 0.007 0.006
No. 14   0.072 0.066 0.064       0.015 0.007 0.006
No. 13   0.080 0.076 0.072 2.0 0.07874   0.015 0.007 0.006
No. 12   0.089 0.085 0.081       0.015 0.007 0.006
No. 11   0.101 0.095 0.091 2.5 0.09842   0.018 0.009 0.008
No. 10   0.112 0.106 0.102       0.018 0.009 0.008
No. 9   0.124 0.118 0.114 3.0 0.11811   0.018 0.009 0.008
No. 8   0.141 0.133 0.129 3.5 0.13780   0.018 0.009 0.008
No. 7   0.158 0.148 0.144 4.0 0.15748   0.018 0.009 0.008
No. 6   0.178 0.166 0.162 4.5 0.17716   0.020 0.011 0.010
No. 5   0.198 0.186 0.182 5.0 0.19685   0.020 0.011 0.010
No. 4   0.224 0.208 0.204 5.5 0.21654   0.020 0.011 0.010
No. 3   0.249 0.234 0.229 6.0 0.23622   0.020 0.011 0.010
No. 2   0.278 0.263 0.258 7.0 0.27559   0.020 0.011 0.010
No. 1   0.311 0.294 0.289 7.5 0.29528   0.020 0.011 0.010
5/16"   0.334 0.313 0.313 8.0 0.31496   0.020 0.011 0.010
No. 0   0.347 0.330 0.325 8.5 0.33464   0.025 0.011 0.016
3/8"   0.399 0.375 0.375 10.0 0.39370   0.025 0.017 0.016
7/16"   0.462 0.438 0.438 11.5 0.45276   0.025 0.017 0.016
1/2"   0.524 0.500 0.500 13.0 0.51181   0.025 0.017 0.016
5/8"   0.655 0.625 0.625 16.5 0.64960   0.025 0.017 0.016
3/4"   0.786 0.750 0.750 19.5 0.76772   0.025 0.017 0.016
7/8"   0.911 0.875 0.875 22.5 0.88582   0.025 0.017 0.016
1"   1.036 1.000 1.000 25.5 1.00470   0.025 0.017 0.016
Over 1" Upon Request
Government Specification
and Designation
Varflex Product Test or Qualification Reference Status
MIL-I-3190/2, Class 130°C, Type B,
Category b, All Colors, All Sizes, Grade A
Varflo, B-A-1 N.Y. 6139-1 On QPL for
MIL-I-3190/2
MIL-I-3190/3, Class 155°C, Type A,
Category a, All Colors, All Sizes, Grade A
Varglas Acrylic 343
and 397, F-A-1
Varflex Report No.4203
and Supplement
On QPL for
MIL-I-3190/3
MIL-I-3190/5, Class 200°C, Type C,
Category c, All Colors, All Sizes, Grade A
Varglas Silicone
Resin 500, H-A-1
Varflex Report No.4202
and Supplement
On QPL for
MIL-I-3190/5
MIL-I-3190/6, Class 200°C, Type D,
Category c, All Colors, All Sizes, Grade A
Varglas Silicone
Rubber, H-A-1
Varfiex Report No.4200
and Supplement
On QPL for
MIL-I-3190/6
MIL-I-3190/7, Class 220°C, Type E,
Category c, All Colors, All Sizes, Grade A
Varglas Viton 231,
R-A-1
Varflex Report No.4204 On QPL for
MIL-I-3190/7
MIL-I-3 190/8, Class 220°C, Type D,
Category c, All Colors, All Sizes, Grade A
Varglas ES-4400
Silicone Rubber, R-A-1
Varflex Report No.4201
and Supplement
On QPL for
MIL-I-3190/8
MIL-I-3190/9, Class 240°C, Type D,
Category c, All Colors, All Sizes, Grade A
Varglas 240 Silicone Rubber,S-A-1 Varflex Report No.4205,
Parts I and II
On QPL for
MIL-I-3190/9
MIL-I-631D, Type F, Form U, Grade c*,
Classes I & II, Category 1 (*high temperature)
Vartube SHH-3A and
SHH-6A
U.S. Testing Co.
Report No.51150
On QPL for
MIL-I-631D
MIL-I-631D, Type F, Form U, Grades a & b*,
Classes I & II, Category 1 (*general purpose)
Vartube 120/210 N.Y. 5203-90 On QPL for
MIL-I-631D
 

Definitions

Coated sleeving is a flexible, tubular product braided from cotton, rayon, nylon, glass or other fibers, which is impregnated, coated, or impregnated and coated with an electrical insulating material.


 Nema Grades

A-1

7000* volt average —
5000 volt minimum individual

B-1

4000 volt average —
2500 volt minimum individual

C-1

2500 volt average —
1500 volt minimum individual

C-2

1500 volt average —
800 volt minimum individual

C-3

No dielectric
guarantee
*For sleeving Types 3, 4, and 5, values are 8000 volt average, 6000 volt minimum individual.

For more information, refer to NEMA Standards for Coated Electric Sleeving. Also, ASTM D372.

 

Types & Classes

Coated sleeving is categorized by the type of coating, base fabric material, dielectric breakdown voltage, temperature index, and inside diameter as follows:

Type 2

A flexible treated sleeving made from inorganic-base yarns such as fibrous glass and impregnated or coated with an insulating material which can be shown by applicable experience or accepted test to have at temperature index of 130 (continuous use at 130°C)

Type 3

A flexible treated sleeving made from inorganic-base yarns such as fibrous glass and impregnated or coated with an insulating material, such as polyvinyl chloride, which can be shown by applicable experience or accepted test to have a temperature index of 105 (continuous use at 105°C).

Type 4

A flexible treated sleeving made from inorganic-base yarns such as fibrous glass and impregnated or coated with an insulating material, such as silicone resin or polytetrafluoroethylene, which can be shown by applicable experience or accepted test to have a temperature index of 200 (continuous use at 200°C).

Type 5

A flexible treated sleeving made from inorganic-base yarns such as fibrous glass and impregnated or coated with an insulating material, such as silicone elastomer, which can be shown by experience or accepted test to have a temperature index of 200 (continuous use at 200°C).

Type 6

A flexible treated sleeving made from inorganic-base yarns such as fibrous glass and impregnated or coated with an insulating material, such as epoxies, polyesters, or acrylics, which can be shown by experience or accepted test to have a temperature index of 155 (continuous use at 155°C).


Sample Folder

Contact us for a folder that contains samples of our most popular sleevings.

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