Diaphragms Seal Specifications

 

Rolling “Top Hat”

 

Maximum Stroke to approximately 1.8 x cylinder bore diameter

Differential pressure capability up to 150 psi

    Pressure applied from one direction only

Must be formed into convoluted shape

 

 

 

Single & Double Coated; Beaded & Flat Flange

Cylinder  Bore  Range

0.25-0.99

1.00-2.50

2.51-4.00

4.01-8.00

over 8.00

Sidewall Thickness

0.013/0.017

0.014/0.020

0.020/0.028

0.030/0.040

0.038/0.052

                                                Double Coated Flat Flange Only: 0.035/0.055                             

 Head/Flange  Thickness

0.015/0.025

0.015/0.025

0.025/0.035

0.030/0.040

0.035/0.055

Piston Radius

0.094

0.125

0.156

0.250

0.250

Double Coated Flat Flange Only: 0.310                            

Flange Radius

0.031

0.062

0.094

0.125

0.125

Double Coated Flat Flange Only: 0.250                             

Convolution Width

0.085

0.094

0.156

0.250

0.250

Bead Width

0.090/0.096

0.122/0.128

0.184/0.190

0.247/0.253

0.247/0.253

Bead Height

0.091/0.097

0.131/0.139

0.195/0.205

0.263/0.277

0.263/0.277

Offset Convoluted

 

Moderate stroke to approximately 0.5 x cylinder bore diameter

Pre-molded shape for easy installation

    Double coating limits diaphragm height while increasing durability when in contact with rough surfaces

 

 

Single Coated

Cylinder  Bore  Range

1.00-2.50

2.51-4.00

4.01-8.00

over 8.00

Sidewall Thickness

0.015/0.025

0.020/0.030

0.030/0.040

0.038/0.052

Head/Flange  Thickness

0.015/0.025

0.020/0.030

0.030/0.040

0.035/0.055

Piston Radius

0.125

0.156

0.250

0.310

Flange Radius

0.062

0.094

0.125

0.188

Convolution Width

0.125

0.156

0.250

0.375

 

Double Coated

Cylinder  Bore  Range

1.00-2.50

2.51-4.00

4.01-8.00

over 8.00

Sidewall Thickness

0.015/0.025

0.020/0.030

0.032/0.048

0.070/0.090

 Head/Flange  Thickness

0.015/0.025

0.020/0.030

0.032/0.048

0.070/0.090

Piston Radius

0.125

0.156

0.250

0.370

Flange Radius

0.094

0.125

0.250

0.250

Convolution Width

0.125

0.156

0.250

0.375

 

Convoluted

Limited stroke to approximately 0.25 x cylinder bore diameter

Pre-molded shape for easy installation

Differential pressure capability to 150 psi

Pressure applied from one direction only

Double coating increases durability when in con- tact with rough sur faces.

 

 

Single Coated; Beaded Flange

Cylinder  Bore  Range

1.00-2.50

2.51-4.00

4.01-8.00

over 8.00

Sidewall Thickness

0.014/0.020

0.020/0.030

0.030/0.040

0.038/0.052

 Head/Flange  Thickness

0.015/0.025

0.025/0.035

0.030/0.040

0.035/0.055

Piston Radius

0.062

0.094

0.125

0.188

Flange Radius

0.062

0.094

0.125

0.125

Convolution Width

0.125

0.156

0.250

0.250

Bead Width

0.122/0.128

0.184/0.190

0.247/0.253

0.247/0.253

Bead Height

0.131/0.139

0.195/0.205

0.263/0.277

0.263/0.277

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Single & Double Coated; Flat Flange

Cylinder  Bore  Range

0.25-0.99

1.00-2.50

2.51-4.00

4.01-8.00

over 8.00

Sidewall Thickness

0.013/0.017

0.014/0.020

0.020/0.030

0.030/0.040

0.038/0.055

 Head/Flange  Thickness

0.017/0.023

0.015/0.025

0.025/0.035

0.030/0.040

0.035/0.055

Piston Radius

(Double Coated)

0.031

0.062

0.062

0.094

0.094

0.125

0.125

0.187

0.125

0.250

Flange Radius

(Double Coated)

0.031

0.062

0.062

0.094

0.094

0.125

0.125

0.187

0.125

0.250

Width

0.085

0.094

0.250

0.250

0.250

 

 

Double-Acting Dished

  • Moderate stroke to approximately 0.5 x cylinder bore diameter
  • Pressure can be applied from both directions
  • Double coating increases durability when in contact with rough sur faces.

 

 

 

 

 

Double Coated; Flat Flange

Cylinder  Bore  Range

1.00-2.50

2.51-4.00

4.01-8.00

over 8.00

Sidewall Thickness

0.020/0.030

0.030/0.040

0.045/0.055

0.070/0.090

 Head/Flange  Thickness

0.020/0.030

0.030/0.040

0.045/0.055

0.070/0.090

Piston Radius

0.094

0.125

0.188

0.250

Flange Radius

0.094

0.125

0.188

0.250

Convolution Width

0.085

0.062

0.870

1.120

 

 

 

 

 

 

 

 

 

Document Download files

 

Hardware and Diaphragm Tolerances (654KB PDF)   Diaphragm Specification Sheets (318KB PDF)