[PDF] ERIKS nv - O-ring Technical Handbook - Compound Selection

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Sealing Elements

32
All the information in this documentation has been compiled with the gre atest of care. Despite this we can bear no responsibility whatsoever for any errors pre sent in the documentation. The recommendations are inte nded as guidelines. www.eriks.info

Technical Handbook O-rings

Operating conditions

SELECTION

OF A SEAL

COMPOUND

DEPENDS

ON AN

ADEQUATE

DEFINITION

OF THE

OPERATING

CONDITIONS

)N

APPROXIMATE

ORDER OF

APPLICATION

IMPORTANCE

Medium

LUBRICANT

TO BE USED ON THE SEAL

4HEREFORE

WHENEVER

POSSIBLE

IT IS A GOOD

PRACTICE

TO USE THE FLUID BEING

SEALED

AS THE

LUBRICANT

ELIMINATING

ONE

VARIABLE

#ONSIDERATION MUST ALSO BE GIVEN TO THE

EFFECT

OF THE RING

COMPOUND

ON

SYSTEM

FLUIDS

&OR

EXAMPLE

s 4HERE ARE SOME

INGREDIENTS

USED IN

COMPOUNDS

WHICH CAUSE

CHEMICAL

DETERIORATION

OF &REON

REFRIGERANTS

7HEN

CHOOSING

A

COMPOUND

FOR USE WITH &REON IT

SHOULD

NOT

CONTAIN

ANY OF THE

INGREDIENTS

WHICH CAUSE THIS

BREAKDOWN

s #OMPOUNDS ONLY NON TOXIC

INGREDIENTS

s RINGS USED IN

METERS

OR OTHER

DEVICES

WHICH MUST BE READ

THROUGH

GLASS A

LIQUID

OR

PLASTIC

MUST NOT

DISCOLOR

THESE

MATERIALS

AND

HINDER

CLEAR

VISION6. Compound Selection

Temperature

Sealing Elements

33
All the information in this documentation has been compiled with the gre atest of care. Despite this we can bear no responsibility whatsoever for any errors pre sent in the documentation. The recommendations are inte nded as guidelines. www.eriks.info

Technical Handbook O-rings

Low Temperature

elastomer is able to retract 10%.

High Temperature

10°C increase in temperature.

-80°C -60°C -40°C -20°C 0°C

Silicone

Spectrum 7075

0°C

50°C 100°C 150°C 200°C 250°C 300°C 350°C

Silicone

B A

Spectrum 7075

Spectrum 6375

6. Compound Selection

Sealing Elements

34
All the information in this documentation has been compiled with the gre atest of care. Despite this we can bear no responsibility whatsoever for any errors pre sent in the documentation. The recommendations are inte nded as guidelines. www.eriks.info

Technical Handbook O-rings

Pressure

Time limit.

6. Compound Selection

Sealing Elements

35
All the information in this documentation has been compiled with the gre atest of care. Despite this we can bear no responsibility whatsoever for any errors pre sent in the documentation. The recommendations are inte nded as guidelines. www.eriks.info

Technical Handbook O-rings

TABLE 3A-2 STANDARD ERIKS COMPOUNDS

Elastomer

Compound Hardness Temperature Application

Number Shore A±5 °C / °F

applications. c

6. Compound Selection

We have over 130

different compounds for specific applications.

Look at www.o-ring.info

Sealing Elements

36
All the information in this documentation has been compiled with the gre atest of care. Despite this we can bear no responsibility whatsoever for any errors pre sent in the documentation. The recommendations are inte nded as guidelines. www.eriks.info

Technical Handbook O-rings

S

TANDARD

ERIKS C

OMPOUNDS

(V ULC -O- RINGS

Elastomer

Hardness Application

Shore A ±5

6. Compound Selection

Sealing Elements

37
All the information in this documentation has been compiled with the gre atest of care. Despite this we can bear no responsibility whatsoever for any errors pre sent in the documentation. The recommendations are inte nded as guidelines. www.eriks.info

Technical Handbook O-rings

For extreme services

Eriks offers a number of compounds for "extreme" services in their application field

O-rings with homologations

ERIKS has developed a wide range of compounds for contact with food and pharma, drinking water, and gases

6. Compound Selection - specials

Ask our special edition

on FDA and USP O-rings !

FDA & ADI

60-compound 514660

70-compound 514670

70-compound 514642

70-compound 514672

70-compound 514674

A 75-compound 514304

A 75-compound 514172

A 75-compound 514641

75-compound 514312

80-compound 514682

80-compound 514680

90-compound 514690

90-compound 514694

USP

75 514312

KTW

75-compound 559291

WRAS

559291

ACS NSF 3A

A 75-comp. 514304

75-compound 514172

75-compound 514312

Silicone 60 714217

Silicone 69 714330

Silicone 75 714006

EN 549

NEN

GASTEC

DVGW KIWA W-270 Bfr

Sealing Elements

38
All the information in this documentation has been compiled with the gre atest of care. Despite this we can bear no responsibility whatsoever for any errors pre sent in the documentation. The recommendations are inte nded as guidelines. www.eriks.info

Technical Handbook O-rings

O-rings and special applications

/X-Rings E RIKS

O-rings are made using the latest technology.

6. Compound Selection - specials

Sealing Elements

39
All the information in this documentation has been compiled with the gre atest of care. Despite this we can bear no responsibility whatsoever for any errors pre sent in the documentation. The recommendations are inte nded as guidelines. www.eriks.info

Technical Handbook O-rings

Genuine Viton

'Only the best is good enough for you' is products.

How do I make sure that I've got Genuine Viton

one can be assured that the brochure. Relative chemical compatibility and mechanical properties for Viton fluorelastomers Viton Viton

General use types Specialty types

Chemical environment

A B F GBL-S GF-S GLT-S GFLT-S ETP-S

Compression set and

low temperature performance

Resistance to compression set

1 2 2 2 2 2 2 2

6. Compound Selection - Viton

The Viton

families

Sealing Elements

40
All the information in this documentation has been compiled with the gre atest of care. Despite this we can bear no responsibility whatsoever for any errors pre sent in the documentation. The recommendations are inte nded as guidelines. www.eriks.info

Technical Handbook O-rings

Viton

A-compounds for general use

End-use service differences between Types of Viton

Standard and

Low Temp. Compression Set, Fluid Resistance Base Resistance

Speciality

Flexibility O-rings % Volume Increase after 168 h % loss of elongation at break Types

TR-10, °C 70 h/200°C, %

Toluene Fuel C/MeOH Methanol Concentrated 33% solution of ASTM Ref. Oil 105 at 40°C (85/15) at 23°C at 23°C H2SO4 at 70°C KOH 336h/40°C 500h/150° AL -19 20-25 20-25 35-40 85-95 12-15 -50 -80 A -17 12-17 20-25 35-40 85-95 10-12 -45 -80 B -13 25-30 12-15 18-23 25-35 8-10 -25 -70

Table 3A-2d Standard Genuine Viton

A compound

Technical data

51414 51414 514320 514670 514690 514206

black green black black

Compression set % 24h/200°C

green production production also

6. Compound Selection - Viton

Sealing Elements

41
All the information in this documentation has been compiled with the gre atest of care. Despite this we can bear no responsibility whatsoever for any errors pre sent in the documentation. The recommendations are inte nded as guidelines. www.eriks.info

Technical Handbook O-rings

Petrochemical industry

B that meet the

compounds are also

Food industry

Consult our website

www.o-ring.info for our overview of compounds for the food and beverage industry.

Low temperature applications

6. Compound Selection - Viton

Sealing Elements

42
All the information in this documentation has been compiled with the gre atest of care. Despite this we can bear no responsibility whatsoever for any errors pre sent in the documentation. The recommendations are inte nded as guidelines. www.eriks.info

Technical Handbook O-rings

Special compounds

High Purity Compound

Note:

Vulc-O-rings

A O-rings.

Note:

6. Compound Selection - Viton

Sealing Elements

43
All the information in this documentation has been compiled with the gre atest of care. Despite this we can bear no responsibility whatsoever for any errors pre sent in the documentation. The recommendations are inte nded as guidelines. www.eriks.info

Technical Handbook O-rings

Frequently asked questions about Viton

1. Does the compound colour affect the quality of the seal?

compounds.

2. Does the type of carbon black affect the quality of a seal?

3. How fast can you supply odd-size O-rings?

4. What is post-curing?

5. Is there a difference in life among the various compounds?

1

Lifetime Test

100
90
80
70
60
50
40
30
20 10 0

24 h1 h168 h504 h1008 h

2 3 4 1234

6. Compound Selection - Viton

Sealing Elements

44
All the information in this documentation has been compiled with the gre atest of care. Despite this we can bear no responsibility whatsoever for any errors pre sent in the documentation. The recommendations are inte nded as guidelines. www.eriks.info

Technical Handbook O-rings

Frequently asked questions about Viton

6. What is the price difference among these various compounds?

7. How does media temperature affect the life of a Viton

seal? compounds.

8. How do I learn about the chemical resistance of a Viton

seal? www.dupontelastomers.com/crg

Compound Price Factor

A - standard

1 B 5

6. Compound Selection - Viton

204°C

232°C 260°C 287°C 315°C

1000
100
0 temperatures up to 204°C.

Sealing Elements

45
All the information in this documentation has been compiled with the gre atest of care. Despite this we can bear no responsibility whatsoever for any errors pre sent in the documentation. The recommendations are inte nded as guidelines. www.eriks.info

Technical Handbook O-rings

Frequently asked questions about Viton

9. When should I choose Kalrez

4079

Spectrum 7075

Silicone

0

100 200 300 400 500 600 700

100
90
80
70
60
50
40
30
20 10 0

Long term sealing force retention at 204°C

6. Compound Selection - Viton

Sealing Elements

46
All the information in this documentation has been compiled with the gre atest of care. Despite this we can bear no responsibility whatsoever for any errors pre sent in the documentation. The recommendations are inte nded as guidelines.quotesdbs_dbs21.pdfusesText_27

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