Dear customers Mechanical Seals

core component in process industry

According to a study of the VDMA,

mechanical seals are regarded as “A”

components in the process industry and

guarantee of system availability as well as

people - and environmental protection.

CHETRA mechanical seals + systems

address these requirements - by building

products, achieving high service life (MTBR

- / MTBF factor), ensure optimal reliability in

conjunction with environmental protection.

As a medium-sized manufacturer, we can

offer our customers a flexible approach to

your requirements including the design of

customer-specific solutions. CHETRA

mechanical seals are always adjusted to the

aggregate - and not vice versa. In addition to

these high-tech mechanical seals we offer a

range of high-quality standard mechanical

seals of the latest series: 209D-Eco / 809D-

Eco (eco = ecology + economy). You get a

first impression of CHETRA and the

products in our current newsletter.

Suggestions and comments are very

welcome.

With best regards

Hans J. Rabl

Recent developments of mechanical seals and establishment of foreign CHETRA subsidiary companies are the keys to please our customers‘ needs.

Table of contents:

- ACHEMA 2015 page 2 - CHETRA APP

- CHETRA repair service page 3 - CHETRA supports sport teams

- Mechanical seal seminar 2016 page 4 - Conception of our new Cartridge mechanical seal series „eco“

- CHETRA on XING page 5 - Foundation of CHETRA Italia s.r.l. - Joint venture between CHETRA India Mechanical Seals

Pvt. Ltd. and MASCOT Dynamics Pvt. Ltd.

- ATEX-compliant shaft seal cartridge „Style 500“ page 6 - CHETRATHENE high-duty cleaner

- Screw pump special mechanical seals page 7 - CHETRA auf Linkedin

- New Back-up mechanical seal, CHETRA style 825TAG page 8 - CHETRA online

- New mechanical seal series for DIN agitators page 9 - CHETRA PIPING DIVISION page 10

ACHEMA 2015 ACHEMA 2015 was a special exhibition as always . Exchange of information with

our visitors about their needs for mechanical seals and mechanical seal systems,

conversations with customers, who themselves were exhibitors and we could take

a closer look at their latest products. A special highlight was the selection of our

stand as one of the booths with innovative products ("who supplies what"). A video

showing the selected CHETRA Loopsystem, a mechanical seal-utilities/ monitoring

unit.

A few photos convey an impression of the lively operating at ACHEMA 2015.

CHETRA APP

For a successful operation mechanical seals require certain methods how to be operated and/ or in addition certain supply systems. Mechanical Seals need to be cooled, lubricated, have to be pressurized, solid matter needs to be eliminated or minimized etc. For years the API Plans (API 682; API American Petroleum Institute) have proven to be a reliable information for this area. The most common and mostly used API Plans are available to you – free-of-charge- by the CHETRA APP – as on overview – and schematic drawing, including a short description of each plan.

Mechanical seals high-quality repairs

Mechanical seals are high-quality machine parts. They are "A" parts/

components for over 2/3 of all users in the fields of oil, gas, chemical, power

plants and paper according to a study of the VDMA. More than 20% of the

users evaluate the importance as "A/B" components. High-quality mechanical

seals as cartridge component, i.e. fully assembled with sleeve and cover it is

worth to fix it. The mechanical seal manufacturer CHETRA is committed to

the goal not easy to repair – "we want to understand why a seal has failed".

When a seal reaches a 'bad' time between failure, the specialists in the plant

go to see what can be improved. CHETRA Service Department gathers the

experiences at the plant operators and transfers it to the repair department.

So, specific expertise is continuously spreading.

A mechanical seal must be repaired, all items are cleaned of course. While

attention is paid to sensitive materials, because the items might be

refurbished once again.

O-rings, springs and screws are replaced every time. CHETRA has different

ways to test mechanical seals - statically or dynamically using an API-

leakage test bench. Each repaired mechanical seal is tested on the leakage

test. Each certified seal gets a leak log and all repairs are identified, so that

traceability is ensured.

You can reach our repair service under:

CHETRA Dichtungstechnik AG

Marsstrasse 1

85551 Kirchheim near Munich

Germany

Contact : Roland Schuetz

Tel: +49(0)89 32946433

Email: roland.schuetz@chetra.de

CHETRA supports sport teams

Sportclubs rely on volunteers. A small

infant football team from North Rhine-

Westphalia has been successfully

developed by the support of their

coaches.

We promote the youth and team sports,

because we know how important it is to

take care of young athletes.

As additional sports facilities, CHETRA

has bought a tracksuit to the young

players.

Good luck!

Mechanical seal seminar 2016 In this year, we offer you the possibility to take part at our seminar located at the Tegernsee.

The topics are:

• developments in seals technology

• operations under extreme parameters

• advantages of gas - or liquid-lubricated mechanical seals

• supply systems

• latest status ATEX

• damage analysis

• exchange of experience

Seminar objective:

improvement of mechanical seal life (MTBF - / MTBR factor)

Target group:

Operating engineers and engineers in the fields of service, maintenance and design, as well as master mechanics and employees of maintenance

Date:

09 November at 13:00 h till 17.00 h on November 10

Fee:

EUR 790,00 per participant excl. VAT incl. lodging and food)

Location: Egerner Höfe

Aribostraße 19-26

83700 Rottach-Egern (Tegernsee)

Germany

Seminar Registration: CHETRA Dichtungstechnik AG

brigitte.huber@chetra.de

+49 89-32 94 64 23

Your contact: Mrs. Brigitte Huber

Please note: Seal seminar conducted in German

Connect with us on:

Follow us on our company page at Xing

and get the current news by following.

CHETRA standard on the road to success

As producer of demanding "high end" mechanical seals we have profound

know-how, what matters in mechanical seals. This know-how inspires the

design of our standard cartridge mechanical seals:

• style 209D-Eco - single acting

• style 809D-Eco - double-acting

This mechanical seals are designed for packing conversions, retrofits,

standardization and universal stakes. Area of application: p (stuffing box): up

to 18 or 23 bar. Dimensions: 25-100 mm and imperial measurements. Both

mechanical seals are in stationary design and are independent of the

direction of rotation. The 809D-Eco is double balanced (i.e. operating as

tandem / non-pressurized buffer or with barrier; pressure API plan 52/53)

and has an integrated feed system. This series with the addition of <eco>

stands for ecology plus economy. Short delivery times and mechanical seals

on stock complete the picture.

Italian subsidiary and Indian

CHETRA joint venture

•Foundation of CHETRA Italia s.r.l.

under the leadership of:

Mr. Alfredo Forte.

Adress:

CHETRA Italia srl

Via dell’Artigianato No. 22

20863 Concorezzo

Italy

•Joint venture agreement between

CHETRA India Mechanical Seals Pvt.

Ltd. and MASCOT Dynamics/ Mumbai

Adress:

CHETRA India Mechanical Seals

Pvt. Ltd.

Gangotri Glacier Annex

Opp Vijaynagari

Kavesar, off ghod bunder road

Thane west 400607

Maharashtra

India

We keep on track (CHETRA Style 500)

We were challenged by a big chemical company:

Within short time CHETRA had to develop a shaft-seal cartridge which was

to optimize the meantime between failure (MTBF).

The problem in this case: No documents regarding dimensions were

available, so CHETRA used a shutdown of production to take the important

dimensions. Concentration and precision were needed.

The MTBF of the former sealing device was 6 months at the maximum.

Therefore 2 repairs p.a. were needed – high repair-, shutdown costs and

production loss coming along.

Such projects often need an

additional time reduction; in

fact the reactor was leaking

much earlier than expected.

So we had to hurry up – the

reactor was repaired the next

day - including our new

designed seal.

Same day, late night we got

the phone call – everything

was working perfect.

A service which made our

costumer very happy.

CHETRATHENE

High-duty cleaner with better formula,

based on renewable raw materials.

• free of aromatic and hexane

substances

• no fragrances that can trigger

allergies according to

detergents-regulations

• minimization of risk of explosion

• posing the fewest hazards possible

• minimization of risk of fire and

explosion

Screw pumps

Challenge: Mechanical seal for screw-spindle pumps, narrow seal

installation space, large diameter, demanding pressures.

We were contacted by a well-known German pump-O.E.M with the following

sealing requirement for a single acting component mechanical seal: Shaft

size: 190 mm, media to be sealed: crude oil; n: 1350 rpm, pmax (dyn.) 35

bar, pmax (stat.) 75 bar.

Any modification of the relatively narrow seal installation space was not

possible; such it was also not possible to design a cartridge mechanical

seal. The Southamerican enduser required documented test-runs of the

mechanical seals with above stated max. values.

From the very beginning a close cooperation between pump-O.E.M and

CHETRA took place. This was very helpful, especially in regards to the

specific requirements for the dynamic seal test rig, since it has to handle

very sizeable forces when testing such a single mechanical seal within the

specified pressure range.

Follow us on our company page at

LinkedIn and get the current news by

following.

New CHETRA-back-up mechanical seal type 825TAG in

tandem arrangement

Known as "back-up" mechanical seals are enjoying increasing acceptance

in the industry. The product-side mechanical seal is a balanced liquid-

lubricated seal. With our new development 825TAG, the atmosphere-side

seal is equipped with a low spring-force applied on the stationary ring, as

well as with gas-grooves for N2 (nitrogen) buffergas. The mechanical seal is

also designed so that it lifts off "automatically" upon reaching the usual

speed of centrifugal pump. The 825TAG has connections for flush (11 or

13), GBI = gasbuffer inlet, CSV = back-up ventilation and CSD = back-up

drain.

The 'back-up' arrangement can run with leak drain to a reservoir. Relevant

API plans are: 72, 75, 76. The first 825TAG are running successfully in a

large German refinery. More CHETRA mechanical seals of the "back-up"

components are 828TAG, stationary arrangement of the product-side

mechanical seal, and 851TAD, dry-running, independent of rotating

direction. In addition we have gas-buffered mechanical seals: Type 370 G

and 877GS; for higher N2 barrier (API plan 74).

CHETRA ONLINE

Find CHETRA online. At www.chetra.de

we offer detailed data and information.

You will find out more about CHETRA –

from history contact persons.

Take a look.

Your CHETRA TEAM

New mechanical seal series for DIN agitators

Type 515BC double mechanical seal without integrated bearings for steel vessels.

Type. 515BCL double mechanical seal with integrated spherical roller bearings for

steel vessels.

Type 514BC double mechanical seal without integrated bearings for enamel

vessels.

Type 514BCL double mechanical seal with integrated spherical roller bearings for

enamel vessels. 515 series have the following areas of application: diameter of

shaft: 40-220 mm, pressure: vacuum up to 16 bar, temperature:-40°C to +200°C,

surface speed: up to 2 m / s, 514 series have the following areas of applications :

Diameter of shaft: 40-160 mm, pressure: vacuum to 16 bar, temperature:-40°C to

+200°C, surface speed: up to 2 m / s

Liquid lubricated mechanical seals in

double design are used for the sealing of

agitator shafts in equipment according to

DIN 28136 in many branches of the

industry.

With new, price-optimized products,

CHETRA extends its existing product range

in this field.

Taking into account the standards DIN

28138 part 1-3, 28154, DIN 28159 the

following types have been developed:

All units are for use in agitators with top drive,

installation-ready and factory tested. By way of

derogation to the above limits and types, special

versions can be designed and delivered on

request. Supply and monitoring systems can be

offered and delivered by CHETRA,. There is a

wide range of standard systems, customized

designs are available upon request. We are

looking forward to your inquiries. Our technicians

in the local work offices are available for a

personal consultation. See the contact information

on our Website: www.chetra.de

CHETRA PIPING DIVISION

CHETRA is ready to further serving the market needs of the

industry. DIN flanges, pipe connections in all common versions,

quality valves and standard pipes are added to the mechanical

seals.

Hereby we would like to offer you an even more comprehensive

service with the proven support of our local technicians.

Shortly, you will receive a catalogue with an overview of the

<CHETRA piping program>.

Please contact us for any information.

Of course, these products are of TOP quality like our <High-End

mechanical seals>.

Your CHETRA TEAM