Coated Varflex Electrical Insulating Sleevings

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Varglas Double Wall Acrylic Sleeving

Varglas_Acrylic_Double-Wall_Sleeving

Varglas Double Wall Acrylic Sleeving is a Grade A, acrylic coated fiberglass sleeving that has been overbraided with a secondary fiberglass braid which, in addition to providing increased physical protection, affords motor manufacturers, as well as rewinders, employing vacuum pressure impregnation with both interior and exterior surfaces that are highly suitable for the absorption and retention of the low-viscosity, solvent-type and solventless resins utilized during the impregnation and drain cycles.

Because of its acrylic lineage, Varglas Double Wal Acrylic Sleeving is resistant to most acids, organic solvents, oils and water and exhibits fair resistance to alkalies. It is compatible with modified polyester, acrylic, epoxy, phenolic and formvar wire enamels and is designed to perform for long periods in a 155°C range without loss of any electrical or physical properties. Since it is Grade A, it provides a minimum average short-time dielectric strength of 7000 volts before vacuum impregnation.

Specifications

The mainstay in this composite is our standard Grade A Varglas A397 Acrylic Sleeving which conforms to MIL-I-3190/3, latest revision; NEMA TF-1, Type 6; and ASTM-D372.

Under the Component Program of Underwriters Laboratories, this acrylic coated sleeving is recognized for 155°C, 600 volt service under UL File #E63450. CSA International certifies its use for 155°C, 600 volt service under CSA File #LR-58486. It also is recognized in systems work, per UL Safety Standard 1446, to facilitate product acceptance by UL.

Applications

Varglas Double Wall Acrylic Sleeving is used primarily to insulate the coil and phase leads in random-wound and formed-coil motors which are to be resin-impregnated, after assembly, utilizing vacuum pressure impregnation processes. However, because of the increased physical protection provided by the fiberglass overbraid, Varglas Double Acrylic Wall Sleeving can also be used whenever additional abrasion resistance and insulation system compatibility are required in applications subjected to continuous operating temperatures of 155°C.

Sizes

AWG #8 through 2 1/2 l.D. Other sizes subject to inquiry.

Standard Color

Natural.

Standard Packaging

Spools.

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.

Downloads

Accreditations

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