HY Material E

HY materials for better sealing solutions

The right material for your application HY22 HY22 is the well-established leader in the field of filled PTFE materials.

HY Grade * Gas

Lube

Operating conditions

HY22

HY50

Non lube wet

PTFE alloy

Resin bonded

Non lube dry

It produces the lowest wear rate in the range of medium to high filled grades. Low thermal expansion and good creep characteristics make it the first choice for low-pressure air and hydrocarbon compressor duties. HY50 HY50, also known as “Nobrac”, is the well-established leader in its field. PTFE is present as a dispersed phase, which together with its unique combination of other materials, offers the advantages of a low friction material with excellent wear resistance at very low dew points, especially for bone dry and boil-off gases. A considerable portfolio of applications

✓ Air

96,000 hours. Typical processes where HY50 excels are pure special gases such as hydrogen, nitrogen, argon and helium, others include boil-off LNG and ethylene. HY54 HY54 is the well-established leader in the field of multi filler filled PTFE. Successful experience in compressor

✓ ✓

O2 NOx N2 Ar or He

✓ ✓ ✓

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✓ CO2

✓ ✓

CO

✓ ✓

Cl2

● ✓

✓

NH3

● ✓

✓ CxHy

● ● ●

✓ ✓

H2 pure

✓ ✓

H2 mixtures

✓

H2S

✓ ✓

✓

HCI SO2 Vinyl chloride & similar SF6 Ethylene

✓ ✓ ✓ ✓

●

✓

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✓ ✓

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✓

Ethylene oxide

✓

Refrigeration

applications covers air, methane, HY79

HY509

HY79 is a grade developed for the

A general purpose lubricated PTFE alloy

HY60

increasing demands in high pressure

for low to medium pressures. Typical

HY60 is a well-proven filled PTFE grade

air compressor applications. Its unique

processes include lubricated service

that provides consistent performance in

combination of special fillers enhances

in hydrocarbons, natural gas, alcohols

pure oxygen or applications containing

its wearing properties to give a low

and air. HY509 can be used non-lube

oxygen. Classified suitable for oxygen

stable wear rate even when operating

against hard surfaces. “BAM” certified.

by the German Federal Institute for

at high temperatures under saturated

Materials Research and Testing

conditions. Typical processes include

within “BAM”.

high pressure stages of PET, general

ethylene, propylene and hydrogen.

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✓

has been established over the last thirty years with some having run in excess of

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✓

high temperature applications, where an upgrade to HY520 is required or in environments with high ambient temperature.

HY54

HY60

HY79

HY509

HY520

HY521

PTFE alloy

PTFE alloy

PTFE alloy

PTFE alloy

PTFE alloy

PTFE alloy

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HY534 High Performance Polymer ●

HY538 PTFE alloy

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HY521 This premium grade is suitable for the majority of non-lube applications and gives much better wear characteristics than that of standard carbon-filled grades, doubling ring life in some cases. This material grade is also suitable

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where the gas is susceptible to condensate or liquid carry over, and also in a lubricated environment. HY521 is

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“BAM”. Typical processes include low pressure stages of PET compressors, wet refinery gas applications e.g. recycle

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suitable for oxygen service, certified by

stages of HDS, olefins, chlorides air, ● ●

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hydrocarbons and refrigeration gases. HY534 HY534 is a high performance polymer material for lubricated high pressure applications. Experience with gases such

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carbon dioxide and ethylene show outstanding results. This grade continues to enjoy world-wide success in reciprocating compressors. HY534 can also be successfully used in combination with

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as hydrogen, ammonia, synthesis gas, ●

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metallic packing rings in high pressure applications. HY538 This high modulus, low creep PTFE compound has been formulated primarily for gas compressor rod

HY520

packings, piston rings and rider bands

For cylinder and packing rings in air and

in non-lube conditions where the gas

oxygen compressors particularly at high

is “dry” with a dew point as low as

discharge temperatures typically found

-40 deg C. It can also be fitted in

in later stages. This material grade is

situations where the ductility of “bone-

also successfully used in high tempe-

dry” gas materials is limiting such as

rature gas applications. Due to its filler

dry ethylene, dry natural gas, hydrogen,

content, the dissipation of heat from

dry HDS service (use HY521 for recycle

its contact surface is better than some

HDS).

other PTFE filled materials. This grade of material is “BAM” certified. Typical processes include high pressure stages

*) Additional grades are available

of PET, general high temperature appli-



for specific applications.

cations or in environments with high



For detailed information please

ambient temperature.



contact your HOERBIGER office.

The advantages of HOERBIGER HY materials Knowledge and experience:

✔

Complete material and design competence from development and



blending to engineering and production



✔

Proven material quality with full process control



✔

Material range for standard applications or engineered solutions



✔

Over 100 years of supplying sealing solutions for critical components



✔

Long term partner of major OEMs

Innovation:

✔

International network of highly qualified R&D engineers



✔

Fully equipped R&D facilities for both material and



product development



✔

Specially designed test rigs for wear test in gas atmosphere



✔

Extensive trials in laboratory test compressors

Partnership:

✔

Working together with the customer to provide dedicated solutions

HOERBIGER – your partner for “Reliable Performance of Compressors”





www.hoerbiger.com

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