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O-Ring Design

The PLUG DIAMETER (H) must be figured using the minimum clearance gap as given in Figure 20 and the maximum clearance gap as shown in Figure 22.







 
 

PLUG DIAMETER (H)

 
 

PLUG DIAMETER (H)

The PLUG DIAMETER (H) for an o-ring must be figured using the minimum clearance gap as given in Figure 20 and the maximum clearance gap as shown in Figure 22. The plug diameter can also be calculated by subtracting the minimum gap from the minimum bore giving the maximum plug diameter. The minimum plug diameter can be calculated by subtracting the maximum gap (see Figure 22) from the maximum bore dimension. By using this method, it allows the use of softer compounds without the possibilities of encountering extrusions.

Description

STATIC FEMALE OR TUBE seals (Figure 24) are based upon the following:

  • Throat (Bore) Dimensions (E)
  • Tube Dimensions (c)
  • Groove Dimension (D)
  • Groove Width (G)
Static Seal Design

Maximum Radial Clearance Gap to Prevent Extrusion

Maximum Pressure PSI

"O" Ring Hardness (Shore A)
50 60 70 80 90

100
250
500

1,000
1,500
2,000
3,000
4,000
5,000

.008"

.005"
.003"

.001"
.000"

.009"
.008"
.005"

.003"
.001"
.000"

.010"
.009"
.008"

.005"
.003"
.002"
.000"

.013"
.012"
.010"

.008"
.005"
.004"
.002"
.000"

.016"
.014"
.012"

.010"
.008"
.005"
.003"
.001"
.000"

 

Section 1 | Section 2 | Section 3 | Section 4 | Section 5 | Section 6 | Section 7 | Section 8 | Section 9 | Section 10

American Seal & Packing 1537 E. McFadden Ave. Suite A, Santa Ana, CA. 92705
714-361-1435          Fax: 714-593-9701              Web: http://www.americansealandpacking.com/

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