GNAX - 300# Non-Asbestos Gasket

Valve Catalog

GNAX - 300# Non-Asbestos Gasket

• 300# Non-Asbestos Gasket
• 1/16"
• Sizes 2" - 8"

Non-Asbestos

Red Rubber

Gasket: APG style CNA-750

  • Constructed of aramid and other synthetic fibers and bonded with nitrile rubber (NBR).
  • Max temperature rating: 750 degrees F
  • (Continuous temp max: 460 degrees F)
  • Max pressure limit: 1595 PSI
  • (Continuous pressure max: 725 PSI)
  • Suitable for: Water, air, and a variety of industrial gases and fluids; suitable for steam depending on operating conditions
  • Meets ASTM F152
  • Comparable products: Klinger C-4401, Garlock 3000
  • Bolts: ASTM A307 Grade A zinc plated carbon steel
  • Minimum tensile strength: 60,000 PSI

Nuts: ASTM A563 zinc plated carbon steel finished hex nut

  • (There is another class of nut designated as “heavy hex” which is also used in industry. Our kits contain “finished hex” which is consistent with many other bolt & gasket set producers.)

Packaging:

  • Box: Folding tab white mottled boxes
  • Bolts are packaged in sealed poly bags
  • Nuts are packaged in sealed poly bags 

Gasket: APG style 0700

  • Constructed of SBR (Styrene Butadiene Rubber)
  • “Smooth” red rubber finish as opposed to rough “cloth” finish
  • Max temperature rating: -20 to 170 degrees F, 210 degrees F intermittent
  • Tensile Strength: 500 PSI
  • Suitable for: hot & cold water, air, and neutral fluids
  • Meets ASTM D-1330

Bolts: ASTM A307 Grade A zinc plated carbon steel

  • Minimum tensile strength: 60,000 PSI

Nuts: ASTM A563 zinc plated carbon steel finished hex nut

  • (There is another class of nut designated as “heavy hex” which is also used in industry. Our kits contain “finished hex” which is consistent with many other bolt & gasket set producers.)

Packaging:

  • Box: Folding tab white mottled boxes
  • Bolts are packaged in sealed poly bags
  • Nuts are packaged in sealed poly bags

A.S.A Flanged Fittings
Class 125 Cast Iron Flanges and Fittings
Dimensions of Cast Iron Flanges, Bolts, and Ring Gaskets

Nominal Pipe Size Diam. of Flange Thickness¹ of Flanges (Min.) Diam. of Bolt Circle Number² of Bolts Diam. of Bolts Diam.² of Bolt Holes Length3,4 of Bolts Size of Flat Ring Gasket Size of Full Face Ring Gasket
1/2       4 1/2       27/32 x 3-1/2
3/4       4 1/2       1-1/6 x 3-7/8
1 4 1/4 7/16 3 1/8 4 1/2 5/8 1 3/4 1 x 2-5/8 1-5/16 x 4-1/4
1 1/4 4 5/8 1/2 3 1/2 4 1/2 5/8 2 1-1/4 x 3  
1 1/2 5 9/16 3 7/8 4 1/2 5/8 2 1-1/2 x 3-3/8 1-29/32 x 5
2 6 5/8 4 3/4 4 5/8 3/4 2 1/4 2 x 4-1/8 2-3/8 x 6
2 1/2 7 11/16 5 1/2 4 5/8 3/4 3 2-1/2 x 4-7/8 2-7/8 x 7
3 7 1/2 3/4 6 4 5/8 3/4 3 3 x 5-3/8 3-1/2 x 7-1/2
3 1/2 8 1/2 13/16 7 8 5/8 3/4 3 3-1/2 x 6-3/8  
4 9 15/16 7 1/2 8 5/8 3/4 3 4 x 6-7/8 4-1/2 x 9
5 10 15/16 8 1/2 8 3/4 7/8 3 5 x 7-3/4 5-9/16 x 10
6 11 1 9 1/2 8 3/4 7/8 3 1/2 6 x 8-3/4 6-5/8 x 11
8 13 1/2 1 1/3 11 3/4 8 3/4 7/8 3 1/2 8 x 11 5-5/8 x 13-1/2
10 16 1  3/16 14 1/4 12 7/8 1 4 10 x 13-3/8 10-3/4 x 16
12 19 1 1/4 17 12 7/8 1 4 12 x 16-1/8 12-3/4 x 19
14 OD 21 1 3/8 18 3/4 12 1 1 1/8 4 1/2 14 x 17-3/4 14 x 21
16 OD 23 1/2 1  7/16 21 1/4 16 1 1 1/8 4 1/2 16 x 20-1/4 16 x 23-1/2
18 OD 25 1  9/16 22 3/4 16 1 1/8 1 1/4 5 18 x 21-5/8 18 x 25
20 OD 27 1/2 1 11/16 25 20 1 1/8 1 1/4 5 20 x 23-7/8 20 x 27-1/2
24 OD 32 1 7/8 29 1/2 20 1 1/4 1 3/8 5 1/2 24 x 28-1/4 24 x 32

A.S.A Flanged Fittings
Class 300 Cast Iron Flanges
Dimensions of Cast Iron Flanges, and Bolts

Nominal Pipe Size Diam. of Flange Thickness of Flanges (Min.) Diam. of  Bolt Circle Number of Bolts Diam. of Bolts Diam. of Bolt Holes Length of Bolts
1/2 3 3/4 - 2.62 4 0.50 0.62 -
3/4 4 5/8 - 3.25 4 0.62 0.75 -
1 4 7/8 - 3.50 4 0.62 0.75 -
1 1/4 - - 3.88 4 0.62 0.75 -
1 1/2 6 1/8 - 4.50 4 0.75 0.88 -
2 6 1/2 5/8 5.00 8 0.62 0.75 3
2 1/2 7 1/2 3/4 5.88 8 0.75 0.88 3 1/4
3 8 1/4 3/4 6.62 8 0.75 0.88 3 1/2
3 1/2 - - 7.25 8 0.75 0.88 -
4 10 3/4 7.88 8 0.75 0.88 3 3/4
5 11 3/4 9.25 8 0.75 0.88 4
6 12 1/2 3/4 10.62 12 0.75 0.88 4 1/4
8 15 7/8 13.00 12 0.88 1.00 4 3/4
10 17 1/2 - 15.25 16 1.00 1.12 -
12 20 1/2 - 17.75 16 1.12 1.25 -
14 23 - 20.25 20 1.12 1.25 -
16 25 1/2 - 22.50 20 1.25 1.38 -
18 28 - 24.75 24 1.25 1.38 -
20 30 1/2 - 27.00 24 1.25 1.38 -
24 36 - 32.00 24 1.50 1.62 -

Tightening Torque Values

Nominal Dia (in) Threads per inch Clamp Load (Lbs) ASTM A307 Grade A
Tightening Torque
  K = 0.15 (Lubricated) K = 0.17 (Plated) K = 0.20 (Plain)
1/2" 13 3831 24 27 32
5/8" 11 6102 48 54 64
3/4" 10 9030 85 96 113
7/8" 9 12467 136 155 182

 

 

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