Type 2933

5 | 20

Visit product website 

3.

Materials

3.1. Bürkert resistApp

Bürkert resistApp – Chemical resistance chart

You want to ensure the reliability and durability of the materials in your individual application

case? Verify your combination of media and materials on our website or in our resistApp.

Start chemical resistance check

3.2. Material specifications

Note:

Your product variant may differ from this illustration depending on the body and interface options.

3

2

4

5

6

1

No.

Element

Material

1

Handwheel

Polyphenylene sulphide (PPS)

2

Visual position indicator

Polyamide (PA)

3

Valve spindle

Stainless steel 1.4305

4

Diaphragm bonnet

Stainless steel 1.4308,

Polyphenylene sulphide (PPS)

5

Diaphragm

EPDM (AD), PTFE/EPDM (EA),

Advanced PTFE/EPDM (EU),

laminate of GYLON® and EPDM (ER)

6

Valve body

See “1. General technical data” on

page 3.

3.3. Example of available diaphragm materials

The diaphragms have been developed to meet the unique challenges of hygienic and sterile requirements. Bürkert offers diaphragms with

precise material composition and high accuracy. Bürkert diaphragms are available in a wide range of materials which have been tested and

proven in applications in the food and beverage, biotechnology, pharmaceutical and cosmetics industries. Diaphragms are tested during

development and production to ensure reliability under difficult process conditions.

• EPDM (AD)

• PTFE/EPDM (EA)

• Advanced PTFE/EPDM (EU)

• Laminate of GYLON® and EPDM (ER)

For further information please refer to our flyer “Diaphragm competence for hygienic applications” on our website .