Valves - diaphragms

Silicone and Silicone Plus diaphragms

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Overview

Silicone and Silicone plus diaphragms

Medical grade platinum-cured silicone diaphragms meet USP Class VI and FDA 21 CFR 177.2600 standards.

We provide two different finishes to our silicone diaphragms, white which is made with Q7-4765 and 0.25 % titanium dioxide or clear with no titanium dioxide.

We also offer a Parylene surface treated version doubling the longevity of the diaphragm.

Features and benefits

  • All Silicone diaphragms are laser-etched with cure dates and batch numbers, ensuring that they are completely traceable
  • Widely used in pharmaceutical applications

Technical summary

Diaphragm variant(s)Bellows, Straight 
Compatible actuatorsAJS, AKS 
Compatible valvesRadial, Weirless 
Material specificationMedical grade (platinum cured), Silicone with Parylene surface treatment 
StandardsASME BPE, RoHS 

Technical Summary table lists features available within the range. See ‘Specifications’ tab for model specific information.

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Performance

Performance

Flow Coefficient (under standard configuration)
Tank Valve Size CV KV
0.5" 4.3 3.7
1.0" 15.8 13.7
1.5" 48.0 41.5
2.0" 72.0 62.2
3.0" 170.0 146.9
4.0" 302.0 260.9

Performance

Flow Coefficient (under standard configuration)
Tank Valve Size CV KV
0.5" 4.3 3.7
1.0" 15.8 13.7
1.5" 48.0 41.5
2.0" 72.0 62.2
3.0" 170.0 146.9

Specifications

Technical specifications

Silicone diaphragmsSilicone plus diaphragms
Tank valve sizes0.5", 0.5" Extended, 1.0", 1.5", 2.0", 2.0" Extended, 3.0", 3.0" Extended, 4.0" 0.5", 1.0", 1.5", 2.0" 
Inline valve sizes0.5", 0.75", 1.0", 1.5" 
ColourWhite/Clear White 
Diaphragm variant(s)Bellows, Straight Bellows, Straight 
Parylene treatmentYes Yes 
Operating temperature-65 °C to 135 °C (-85 °F to 275 °F)  -65 °C to 135 °C (-85 °F to 275 °F)  
Compatible actuatorsAJS, AKS AJS, AKS 
Compatible valvesRadial, Weirless Radial 
Actuator typeManual, Pneumatic Manual, Pneumatic 
Curing agentPlatinum Platinum 
Steaming required prior to installationNo No 
ASME BPE appendix K SIP cycle rating100 200 
Total actuations during SIP cycle testing1000 2000 
Shelf life5 years
Material specificationMedical grade (platinum cured) Silicone with Parylene surface treatment 
StandardsASME BPE, RoHS ASME BPE, RoHS 
Certification and complianceADCF, BSE/TSE free, FDA 21CFR177.2600, USP <87>, USP <88> Class VI ADCF, BSE/TSE free, FDA 21CFR177.2600, USP <87>, USP <88> Class VI 
Max. operating pressure varies by size up to maximum indicated

Materials of construction

DiaphragmDuPont Q7-4765, Nusil MED-4065
Inserts304 SS

Documentation

Brochures

  1. ASEPCO weirless radial diaphragm valves (EN).pdf
    PDF - 600,3kb

Datasheets

  1. Silicone plus diaphragms datasheet (EN).pdf
    PDF - 207,8kb
  2. Silicone diaphragms datasheet (EN).pdf
    PDF - 208,9kb

Order Information

Product codes

Silicone diaphragms product codes

Code Product

FS05

Weirless diaphragm .5" Compact Silicone White

IS08

Weirless diaphragm .75" Silicone White

IS10

Weirless diaphragm 1" Silicone White

IS15

Weirless diaphragm 1.5" Silicone White

RS05

Radial diaphragm .5" Silicone White

SC05

Radial diaphragm .5" Silicone Clear

SC10

Radial diaphragm 1" Silicone Clear

SE17

Radial diaphragm extended 1.5" Silicone White

SE20

Radial diaphragm extended 2" Silicone White USP

SE30

Radial diaphragm extended 3" Silicone White USP

SG05

Radial diaphragm extended .5" Silicone White

SL05

Radial diaphragm .5" Silicone White Straight

SL10

Radial diaphragm 1" Silicone White Bellows

SL17

Radial diaphragm 1.5" Silicone White Straight

SL20

Radial diaphragm 2" Silicone White Bellows

SL20-002

Radial diaphragm 2" Silicone White Straight

SL30

Radial diaphragm 3" Silicone White Straight

SL40

Radial diaphragm 4" Silicone White Straight

Silicone plus diaphragms product codes

Code Product

PS05

Radial diaphragm .5" Silicone Plus White with Parylene surface Straight

PS10

Radial diaphragm 1" Silicone Plus White with Parylene surface Bellows

PS17

Radial diaphragm 1.5" Silicone Plus White with Parylene surface Straight

PS20

Radial diaphragm 2" Silicone Plus White with Parylene surface Bellows

PS30

Radial diaphragm 3" Silicone Plus White with Parylene surface Straight

PSE20

Radial diaphragm extended 2" Silicone Plus White with Parylene surface

PSG05

Radial diaphragm extended .5" Silicone Plus White with Parylene surface

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