Valves - diaphragms

Viton diaphragms

Order a sample
Order a sample

Overview

Viton® diaphragms

Viton® is a class of fluoropolymer elastomer (synthetic rubber) and is well known for its excellent heat, acid and chemical resistance. The performance of fluoroelastomers in aggressive chemicals depends on the grade of the elastomer.

There are three grades of Viton we currently use for our viton diaphragms:

  • Viton A the most commonly used version of Viton, but should not be used with most ketones, esters or extended steam exposure.
  • Viton A (SR) Steam resistant version of Viton A, performs well in conditions with extended steam
  • Viton GF is more chemically resistant than Viton A and offers good steam resistance. However, it should not be used with most ketones and esters.

Features and benefits

  • All our diaphragms are laser-etched with cure dates and batch numbers, ensuring that they are completely traceable
  • Excellent heat and chemical resistance
  • Steam resistant version available
  • Not suitable for use with ketones and esters

Technical summary

Diaphragm variant(s)Bellows, Straight 
Compatible actuatorsAJS, AKS 
Material specificationFluoropolymer elastomer, Peroxide cured F-type gum polymers, Steam resistant Viton A 
StandardsASME BPE, RoHS 

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

Share

Specifications

Technical specifications

Viton A diaphragmsViton A (SR) diaphragmsViton GF diaphragms
ColourCream Black Black 
Diaphragm variant(s)Bellows, Straight Bellows, Straight Straight 
Parylene treatmentNo No No 
Operating temperature range -20 to 177 °C-20 to 177 °C-20 to 177 °C
Operating temperature range -4 to 350 °F-4 to 350 °F-4 to 350 °F
4.8 4.8 4.8 
Max. operating pressure70 psig70 psig70 psig
Compatible actuatorsAJS, AKS AJS, AKS AJS, AKS 
200 200 
2000 2000 
Shelf life4 years4 years4 years
Material specificationFluoropolymer elastomer Steam resistant Viton A Peroxide cured F-type gum polymers 
StandardsASME BPE, RoHS ASME BPE, RoHS ASME BPE, RoHS 
Certification and complianceADCF, BSE/TSE free, FDA 21CFR177.2600, USP <87> ADCF, BSE/TSE free, FDA 21CFR177.2600, USP <87> ADCF, BSE/TSE free, FDA 21CFR177.2600, USP <87> 

Materials of construction

Synthetic rubber compound, Viton® A Cream Fluoropolymer Elastimer, Viton® A Steam Grade 42563, Viton® GF 17340
Inserts304 SS

Literature

Brochures

  1. ASEPCO weirless radial diaphragm valves (US).pdf
    PDF - 605.5kb

Datasheet

  1. Viton A Diaphragms datasheet (US).pdf
    PDF - 204.1kb
  2. Viton A (SR) Diaphragms datasheet (US).pdf
    PDF - 201.3kb
  3. Viton GF Diaphragms datasheet (US).pdf
    PDF - 207.4kb

Recommended Products

  1. Tank-bottom valves

    Tank-bottom valves

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

    Valves - tank valves

  2. 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

  3. 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

  4. 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

  5. Insulate valves

    Insulate valves

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

    Valves - tank valves

  6. 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

  7. 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

  8. Retrofit valves

    Retrofit valves

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

    Valves - tank valves

  9. 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

  10. Tangential valves

    Tangential valves

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

    Valves - tank valves

  11. 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

  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. Sterile access valves

    Sterile access valves

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

    Valves - inline valves

  14. 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

Related Products

  1. EPDM and EPDM plus diaphragms

    EPDM and EPDM plus diaphragms

    EPDM diaphragms. Not suitable for use with solvents or petroleum agents. Parylene surface treated version available.

    Valves - diaphragms

  2. PTFE diaphragms

    PTFE diaphragms

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

    Valves - diaphragms

Our specialists are here to help you succeed.

To order a product or ask a question

Contact our experts