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Sampling Valves
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Sealing Identification

 

Continued from Thread Identification...

Step 1 (Thread Measurement) > Step 2 (Sealing Forms) > Step 3 (Dash Sizes)

 

 

Step 2: Sealing Forms

Locate your sealing form on the Chart and use it to find the Checkfluid ID number associated with it

 

Thread Type (click for image) Checkfluid # (F = Female Thread)
Form A Form B Form C Form D Form E Form F Form G Type of Connection ISO #
SAE # DIN # JIS # Seals Sealing Surface
ORB U(F)             Port End

11926

J1926     SAE O-Ring Flare Bore
JIC J(F)             Tube End
J514     Metal Flare
NPT/ NPTF N(F)             Port End
J476     Metal Thread
ORFS F(F)             Tube End
J1453     SAE Face Seal Face
BSPP GB(F)            

 

      Cut Ring  or Copper Washer
Face
BSPP GC(F)    

        Port End

9974

  3852-1 form X or Y   Recess E O-Ring Face
BSPP GCB(F)             Port End

9974

  3852-1 form X or Y   Bonded Washer Face
BSPT GD(F)             Port End

 

  Similar to: 3852-2 form Z B8363 Recess E O-Ring Face
METRIC DIN MA(F)

        Port End

DIN
DIN O-Ring Step Bore
METRIC DIN MB(F)  

          Port End 9974   3852-1   Cut Ring or Copper Washer Face
METRIC BW MCB(F)    

        Port End

9974

  3852-1 form X or Y   Bonded Washer Face
METRIC OR MCA(F)    

        Port End

1179

 

  3852-2 form X or Y   O-Ring + Retaining Ring
Face
METRIC ISO ME(F)             Port End

6149

J2244 3852-3 form "W"   ISO O-Ring Flare Bore
Metric Taper MT(F)      

                Metal Thread
  Form A Form B Form C Form D Form E Form F Form G              
SEALING TYPE Boss/Step O-Ring Face Metal Face O-Ring Thread Metal Boss/C'Bore O-Ring Flare Metal Face O-Ring              
MALE SEALING FORMS

             
FEMALE SEALING FORMS

             

SEALING METHOD

 

(RUBBER) DIN O-Ring
O-Ring boss sealing in the female using a DIN ORing

(METAL/ RUBBER) Flat Seal Cutting Ring
Flat seal bonded or copper washer sealing in the female counter bore

(RUBBER) Recessed Hex Seal
Seals on a flat machined surface

(METAL) Tapered Seal
Seals on thread

(RUBBER) ISO 6149

SAE O-Ring

ISO 11926
O-Ring boss sealing in the female counter bore using an ISO 6149 ORing, SAE ORing

(METAL) SAE 37° Flare seals on internal female flare

O-Ring Face Seal
O-Ring face sealing on the male face groove using an ORFS O-Ring

             

 

  O-Ring DIN/ ISO/ ORFS Flat Rubber Seal Bonded Seal Steel / Rubber  

O-RING STYLES

ORING   

        ID               CS
FlatRubberSealID

 IDBondedSeal

     CS

 

LEGEND

CS=CROSS SECTION

ID= INSIDE DIAMETER

 

 
 

RUBBER SEALING FORM CHARTS

            Form Sealing Type  

 

Form A

 

DIN O-Ring

INSIDE DIAMETER (ID) CROSS SECTION (CS)  
Metric Inch Metric Inch Dash Size/
Fitting Size
Thread Size
6.10 0.24 1.63 0.06 - M8 X 1 
8.00 0.31 1.50 0.06 4 M10 X 1
9.25 0.36 1.78 0.07 6 M12 X 1.5
10.82 0.43 1.78 0.07 8 M14 X 1.5
13.46 0.53 2.08 0.08 10 M16 X 1.5
15.54 0.61 2.62 0.10 12 M18 X 1.5
17.17 0.68 1.78 0.07 - M20 X 1.5
18.77 0.74 1.78 0.07 15 M22 X 1.5
20.35 0.80 1.78 0.07 - M24 X 1.5
21.89 0.86 2.62 0.10 18 M26 X1.5
23.47 0.92 2.62 0.10 - M27 X 2
26.64 1.05 2.62 0.10 22 M30 X 2
28.24 1.11 2.62 0.10 - M33 X 2
31.42 1.24 2.62 0.10 28 M36 X 2
37.77 1.49 2.62 0.10 - M42 X 2
40.94 1.61 2.62 0.10 - M45 X 2 
44.12 1.74 2.62 0.10 - M48 X 2
45.69 1.80 2.62 0.10 - M50 X 2

Form B

Bonded
Seal 

10.40 0.41 2.00 0.08 - 1/8-28
13.70 0.54 2.00 0.08 4 1/4-19
17.30 0.68 2.00 0.08 6 3/8-19
21.50 0.85 2.30 0.09 8 1/2-14
23.50 0.93 2.30 0.09 10 5/8-14
27.10 1.07 2.30 0.09 12 3/4-14
33.90 1.33 2.30 0.09 16 1-11
42.90 1.69 3.30 0.13 20 1 1/4-11
48.40 1.91 3.30 0.13 24 1 1/2-11

Form C

Flat Sealing Ring

           
8.4 0.33 1 0.04 2 G 1/8 A
11.6 0.46 1.5 0.06 4 G 1/4 A
14.7 0.58 1.5 0.06 6 G 3/8 A
18.5 0.73 1.5 0.06 12 G 1/2 A
           

 

 

 

 

 

 

 

 

Form E

ISO O-RING

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SAE

O-RING

6.10 0.24 1.6 0.06 4 M8 X 1 
8.10 0.32 1.6 0.06 5 M10 X 1
9.30 0.37 2.2 0.09 6 M12 X 1.5
11.30 0.44 2.2 0.09 8 M14 X 1.5
13.30 0.52 2.2 0.09 10 M16 X 1.5
15.30 0.60 2.2 0.09 12 M18 X 1.5
19.30 0.76 2.2 0.09 16 M22 X 1.5
23.60 0.93 2.9 0.11 20 M27 X 2
26.60 1.05 2.9 0.11 - M26 X1.5
29.60 1.17 2.9 0.11 22 M30 X 2
34.60 1.36 2.9 0.11 - M38 X 2
38.60 1.52 2.9 0.11 30 M42 X 2
44.60 1.76 2.9 0.11 38 M48 X 2
56.60 2.23 2.9 0.11 - M60 X 2
           
6.10 0.24 1.52 0.06 2 1/8
7.62 .30 1.52 0.06 3 3/16
8.89 .35 1.78 0.07 4 1/4
10.41 .41 1.78 0.07 5 5/16
11.938 .47 2.03 0.08 6 3/8
16.256 .64 2.29 0.09 8 1/2
19.30 .76 2.54 0.10 10 5/8
23.36 .92 3.05 0.12 12 3/4
26.67 1.05 3.05 0.12 14 7/8
29.72 1.17 3.05 0.12 16 1
37.59 1.48 3.05 0.12 20 1 1/4
43.69 1.72 3.05 0.12 24 1 1/2
59.44 2.34 3.05 0.12 32 2
           

Form G

O-Ring Face Seal

9.30 0.37 1.78 0.07 6 3/8
12.40 0.49 1.78 0.07 8 1/2
15.60 0.61 1.78 0.07 10 5/8
18.80 0.74 1.78 0.07 12 3/4
21.80 0.86 1.78 0.07 14 7/8
23.50 0.93 1.78 0.07 16 1
29.90 1.18 1.78 0.07 20 1 3/4
37.80 1.49 1.78 0.07 24 1 1/2
49.00 1.93 2.54 0.10 32 2

 

Elastometric Sealing Specifications and Identification

 

Continue on to Step 3: Dash sizes