Type 8750

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2.

Materials

2.1. Chemical Resistance Chart – 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.

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2.2. Material specifications

ELEMENT version, actuator M (70 mm), N (90 mm), P (130 mm)

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No. Element

Material

1

Pilot air ports

Push-in connector PP

2

Actuator

PPS

3

Cover

Stainless steel 1.4561 (316Ti)

4

Piston seal

FKM

5

Spring

Stainless steel 1.4310

6

Pipe

Stainless steel 1.4401 (316)

7

Spindle sealing

PTFE V-Rings (filled), with spring compensa-

tion

8

Spindle

Stainless steel 1.4401 (316)/1.4404 (316L)

9

Spindle guide

Stainless steel 1.4404 (316L), PTFE filled

10

Body seal

Graphite or PTFE

11

Control cone

Stainless steel 1.4571

12

Spring straight pin

Stainless steel 1.4310

13

Seat seal

PTFE

14

Valve seat with O-Ring

Stainless steel 1.4571, EPDM

15

Valve body

Stainless steel CF3M (316L)

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Pipe for inlet and outlet section1.)

Stainless steel 1.4404 / 1.4435

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Pressure sensor sleeve1.)

Stainless steel 1.4404

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Connection flange1.)

Stainless steel 1.4404 (316L)

1.) Not shown in the drawing.