Fabrics For Diaphragms

A key component of rolling diaphragms is the fabric reinforcement selected to ensure the diaphragm will withstand the application pressure and cycle life expectations. DiaCom has developed a comprehensive selection of standard fabric styles, each with specific physical characteristics that are selected based on weave patterns, tensile strength, formability and chemical and heat resistance capabilities, as well as other variables. DiaCom technical personnel are available to assist in selecting the proper fabric for a specific application.

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Learn About Dia Tuff Diaphragm Seals

 

DiaCom
Material
Designation
Fabric Style
Fabric
Gauge
(Inches)
Fabric
Gauge
(mm)
Maximum
Recommended Operating Temperature
Fabric
Tensile
Strength
(PSI)
Fabric
Tensile
Strength
(BAR)
General Physical Properties
FA-0321
FA-0503
FA-0708
Polyester
Polyester
Polyester
.0031-.0040
.0020-.0052
.0078-.0086
.0787-.1016
.0508-.1321
.1981-.2184
302°F (150°C)
302°F( 150°C)
302°F (150°C)
34
66
154
.0234
.0455
.1062
Light weight, special applications
General purpose, high stability, good processability
Heavy duty, high stability
FA-0801
FA-0806
FA-0919
Polyester
Polyester
Polyester
.0085-.0105
.0085-.0105
.0075-.0095
.2159-.2667
.2159-.2667
.1905-.2413
302°F (150°C)
302°F (150°C)
302°F (150°C)
35
35
80
.0241
.0241
.0552
Light to medium duty, good formability
Light to medium duty, good formability
Tight weave, high-strength
FA-0920
FA-1202
FA-1601
Polyester
Polyester
Polyester
.0075-.0095
.0088-.0128
.0140-.0160
.1905-.2413
.2235-.3251
.3556-.4064
302°F (150°C)
302°F (150°C)
302°F (150°C)
80
114
70
.0552
.0786
.0483
Tight weave, high-strength
Heavy duty, good formability
Medium duty, good formability
FA-1602
FB-0408
FB-0812
Polyester
Nylon
Nylon
.0140-.0160
.0030-.0050
.0060-.0090
.3556-.4064
.0762-.1270
.1524-.2286
302°F (150°C)
250°F (120°C)
250°F (120°C)
70
65
210
.0483
.0448
.1448
Medium duty, good formability
Good sensitivity, medium strength, unbalance weave
High strength, limited formability
FB-1109
FB-2806
FC-0604
Nylon
Nylon
Nomex
.0142-.0154
.0250-.0280
.0068-.0077
.3607-.3912
.6350-.7112
.1727-.1956
250°F (120°C)
250°F (120°C)
500°F (260°C)
275
825
115
.1896
.5688
.0793
High strength, good formability
Extreme heavy duty, good abrasion resistance
High temperature, heavy duty
FC-0702
FC-0905
FV-1001B
Nomex
Nomex
Dia.Tuff
.0073-.0091
.0084-.0096
.0090-.0130
.1854-.2311
.2134-.2438
.2286-.3302
500°F (260°C)
500°F (260°C)
500°F (260°C)
42
105
600
.0290
.0724
.4137
High temperature, light to medium duty, good formability
High temperature, heavy duty, limited formability
Extreme heavy duty, good formability

 

 

General Chemical Compatibility

Property
Silk
Cotton
Nylon
Polyester
Nomex
Dia.Tuff
Relative Tensile Strength
Moderate
Moderate
Very High
High
High
Extreme
Resistance to:
 
Heat Degradation
Low
Good
Very Good
Very Good
Excellent
Excellent
Mildew
Fair
Poor-Fair
Good
Good
Excellent
Excellent
Alkalis
Poor
Good
Good
Fair
Good
Good
Weak Acids
Fair
Good
Fair
Good
Fair
Excellent
Strong Acids
Poor
Poor
Poor
Fair-Good
Poor
Excellent
Oxidizing Agents
Poor
Fair
Fair
Good
Poor
Excellent
Organic Solvents
Poor
Excellent
Very Good
Good
Good
Excellent
Costs:
 
Relative Cost
Mod-High
Moderate
Moderate
Moderate
High
Very High

 

 

 

 

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