Valves - diaphragms

Silicone and Silicone Plus diaphragms

Order a sample
Order a sample

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.

Share

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 range -65 °C to 135 °C-65 °C to 135 °C
Operating temperature range -85 °F to 275 °F-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

Literature

Brochures

  1. ASEPCO weirless radial diaphragm valves (EN).pdf
    PDF - 600.3kb

Datasheet

  1. Silicone Plus Diaphragms datasheet (EN).pdf
    PDF - 144kb
  2. Silicone Diaphragms datasheet (EN).pdf
    PDF - 145.3kb

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

Recommended Products

  1. Insulate valves

    Insulate valves

    Use with freeze tanks or tanks requiring critical temperature control. Extended body and diaphragm.

    Valves - tank valves

  2. Sterillite valves

    Sterillite valves

    An integrated steam valve added to our tank-bottom valve. Allows steam-in-place or flush through, without dead legs.

    Valves - tank valves

  3. Divert valves

    Divert valves

    Designed to allow division and blending of two or three fluid paths in a single assembly. Eliminates dead legs.

    Valves - tank valves

  4. Point-of-use valves

    Point-of-use valves

    Created for low-point draining or sampling in piping systems, this valve eliminates dead legs and helps promote drainage.

    Valves - tank valves

  5. Process valves

    Process valves

    A valve with a simple clamp connection for easy installation. Allows steam-in-place or flush through, without dead legs.

    Valves - tank valves

  6. Retrofit valves

    Retrofit valves

    Used to add ASEPCO valves to existing tanks. Many different designs to fit your specific situation.

    Valves - tank valves

  7. Tangential valves

    Tangential valves

    Off-centre outlet for full drainability when installed on the slope of a vessel head.

    Valves - tank valves

  8. Tank-bottom valves

    Tank-bottom valves

    The leading aseptic tank-bottom valve. Available in multiple configurations including custom-machined.

    Valves - tank valves

  9. Zero dead leg valves

    Zero dead leg valves

    For use in situations where sampling, draining, transferring or directing fluid from a line is necessary.

    Valves - tank valves

  10. I-Sample valves

    I-Sample valves

    Designed with through-the-chamber CIP/SIP via 1/4- to 1/2-inch ports, ensuring a truly representative sample every time.

    Valves - sampling

  11. Sample valves

    Sample valves

    Consistent sampling every time. Behind-the-seat-flow path allows for easy clean-in-place/steam-in-place between samples.

    Valves - sampling

  12. Block-and-bleed valves

    Block-and-bleed valves

    Eliminate the usual dead leg between seal points, in a reliable block-and-bleed valve.

    Valves - inline valves

  13. Inline valves

    Inline valves

    Our best-selling in-line valve featuring a 180 degree install angle with superior drainability in multiple orientations.

    Valves - inline valves

  14. Sterile access valves

    Sterile access valves

    Minimise hold-up volume, with two flow paths in one efficient valve.

    Valves - inline valves

Related Products

  1. EPDM diaphragms

    EPDM diaphragms

    EPDM diaphragms. Not suitable for use with solvents or petroleum agents.

    Valves - diaphragms

  2. PTFE diaphragms

    PTFE diaphragms

    Long-lasting, quick-change diaphragms. Extremely chemical and steam resistant. Only available for tank valves.

    Valves - diaphragms

  3. Viton diaphragms

    Viton diaphragms

    Excellent heat and chemical resistance. Not suitable for use with ketones and esters. Steam resistant version available.

    Valves - diaphragms

Our specialists are here to help you succeed.

To order a product or ask a question

Contact our experts