HY materials for better sealing solutions

HY79

HY79 is a grade developed for the

increasing demands in high pressure

air compressor applications. Its unique

combination of special fillers enhances

its wearing properties to give a low

stable wear rate even when operating

at high temperatures under saturated

conditions. Typical processes include

high pressure stages of PET, general

high temperature applications, where

an upgrade to HY520 is required or in

environments with high ambient

temperature.

HY509

A general purpose lubricated PTFE alloy

for low to medium pressures. Typical

processes include lubricated service

in hydrocarbons, natural gas, alcohols

and air. HY509 can be used non-lube

against hard surfaces. BAM certified.

The right material for your application

Lube

Non lube wet

Non lube dry

HY22

PTFE

alloy

HY50

Resin

bonded

HY Grade *

Gas

Air

O2NOxN2Ar or He

CO2

CO

Cl2

NH3

CxHy

H2 pure

H2 mixtures

H2S

HCI

SO2Vinyl chloride & similar

SF6

Ethylene

Ethylene oxide

Refrigeration

HY54

PTFE

alloy

HY22

HY22 is the well-established leader

in the field of filled PTFE materials.

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

has been established over the last thirty

years with some having run in excess of

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

applications covers air, methane,

ethylene, propylene and hydrogen.

HY60

HY60 is a well-proven filled PTFE grade

that provides consistent performance in

pure oxygen or applications containing

oxygen. Classified suitable for oxygen

by the German Federal Institute for

Materials Research and Testing

within BAM.

Operating conditions

HY520

For cylinder and packing rings in air and

oxygen compressors particularly at high

discharge temperatures typically found

in later stages. This material grade is

also successfully used in high tempe-

rature gas applications. Due to its filler

content, the dissipation of heat from

its contact surface is better than some

other PTFE filled materials. This grade

of material is BAM certified. Typical

processes include high pressure stages

of PET, general high temperature appli-

cations or in environments with high

ambient temperature.

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

where the gas is susceptible to con-

densate or liquid carry over, and also

in a lubricated environment. HY521 is

suitable for oxygen service, certified by

BAM. Typical processes include low

pressure stages of PET compressors,

wet refinery gas applications e.g. recycle

stages of HDS, olefins, chlorides air,

hydrocarbons and refrigeration gases.

HY534

HY534 is a high performance polymer

material for lubricated high pressure

applications. Experience with gases such

as hydrogen, ammonia, synthesis gas,

carbon dioxide and ethylene show out-

standing results. This grade continues

to enjoy world-wide success in recipro-

cating compressors. HY534 can also be

successfully used in combination with

metallic packing rings in high pressure

applications.

HY538

This high modulus, low creep PTFE

compound has been formulated

primarily for gas compressor rod

packings, piston rings and rider bands

in non-lube conditions where the gas

is dry with a dew point as low as

-40 deg C. It can also be fitted in

situations where the ductility of bone-

dry gas materials is limiting such as

dry ethylene, dry natural gas, hydrogen,

dry HDS service (use HY521 for recycle

HDS).

*) Additional grades are available

for specific applications.

For detailed information please

contact your HOERBIGER office.

HY60

PTFE

alloy

HY79

PTFE

alloy

HY509

PTFE

alloy

HY520

PTFE

alloy

HY521

PTFE

alloy

HY534

High

Performance

Polymer

HY538

PTFE

alloy

The right material for your application

HY50

Resin

bonded

HY54

PTFE

alloy

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

The advantages of HOERBIGER HY materials

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www.hoerbiger.com

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