project-sm flow and controls pvt.ltd

1

A REPORT

ON

“MECHANICAL SEALS AND VALVES”

BY

LONI GOGOI (10ATME098)

SHEEBA BORKAKOTI (10ATME115)

AT

SM FLOW AND CONTROLS PVT.LTD.

KOLKATA

An Internship Program –III station of

Faculty of Science & Technology, ICFAI University, Tripura.

(31st May, 2014)

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A REPORT

ON

“MECHANICAL SEALS AND VALVES”

BY



For the award of the degree of

Bachelor of Technology

In

Mechanical Engineering

Prepared in partial fulfillment of the

Internship Program-III course

AT

SM FLOW AND CONTROLS PVT.LTD.

KOLKATA

An Internship Program –III station of

Faculty of Science & Technology, ICFAI University, Tripura.

(31st May, 2014)

3

ACKNOWLEDGEMENT

The accomplishment of this project has been a lot easier owing to the cooperation of SM Flow

and Controls Pvt. Ltd. and ICFAI University, Tripura.

We would like to express our sincere thanks to Mr. B.K. Chaudhary (Director) and Mr. Ujjawal

Kumar Mukherjee (Manager) for giving us an opportunity to work in their company and also for

their guidance and support.

We would also like to express our deepest sense of gratitude to Mr. Arindam Sinha (Professor,

Mechanical Dept.) for his constant help and support.

We would like to thank Dr. Ajay Pathak (Vice Chancellor, ICFAI University) and Mrs. Swarnali

Nath Choudhury (IP Coordinator) for permitting us to take up this project work.

Lastly we would like to thank each and every person who helped us directly or indirectly in

successful completion of this Internship Program at SM Flow and Controls Pvt. Ltd.

Loni Gogoi (10ATME098)

Sheeba Borkakoti (10ATME115)

ABSTRACT SHEET

Faculty of Science & Technology, ICFAI University

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STATION: The ICFAI University, Tripura. CENTRE: SM Flow and Controls

Pvt. Ltd.

DURATION: One Month DATE OF START: 1st May 2014

DATE OF SUBMISSION: 31st May 2014

TITLE OF THE PROJECT: “Mechanical Seals and Valves”



DISCIPLINE: Mechanical Engineering.

Name of IP Faculty: Mr. Arindam Sinha Project

Areas: Marketing.

ABSTRACT:

This report provides an overview of different types of valves and mechanical seals

and their applications in different fields of engineering. It also provides a brief

description about the company and the different products that are being

manufactured and supplied by them.

Thus, this report also contains the objectives that we have accomplished

throughout our Internship at SM Flow &Controls Pvt. Ltd.

Signature of Students: Signature of IP Faculty

Date: 31st May, 2014 Date:

TABLE OF CONTENTS

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CONTENTS PAGE NO:

Chapter 1

1. 1.Introduction 1

1.2. Products dealt by SM Flow and Controls

1

1.3. Valves

2

1.3. Mechanical Seals 4

Chapter 2

2.1. Objective 5

2.2. Hotels Visited 6

2.3. Hospitals Visited 8

Chapter 3

3.1. Task Performed 9

Chapter 4

4.1. Conclusion 10

Chapter 5

5.1. References 11

CHAPTER 1

1.1 INTRODUCTION

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SM Flow and Controls Pvt. Ltd was established in the year of 2005 with an aim of achieving a

leading role in trading and manufacturing of industrial valves, mechanical seals, mechanical seals

for pumps and other rotating machinery. SM Flow is also an exporter, manufacturer, wholesaler,

distributor, supplier, trading company. The company is a leading manufacturer of mechanical

seals, industrial valves, gate valves, globe valves, butterfly valves and the manufacturing plant is

located at Surat, Gujarat.

1.2. PRODUCTS THEY DEAL WITH:

The company mainly deals with the following products:-

1. SKEGA PP Valves: These include Skega Brand Polypropylene Ball Valves, Diaphragm

Valves, Check Valves, Sight Glass and Foot Valves.

2. GM Engineering: GM Engineering is making full range of Ball, Gate, Globe, and Check,

Butterfly valve in CS, SS304, and SS316 as well in higher alloys.

3. Mechanical seals. : All types of Mechanical Seal are manufactured.

4. UNI KLINGER Ltd.: Authorized dealer for UNI KLINGER Ltd. UKL is making full

range of products for Steam application, like Steam traps, Piston Valves, PRS etc.

5. HI-TECH Applicator: Authorized dealer for HI-TECH Applicator. HI-TECH is making

full range of all type of valve & pipe fitting is Teflon Lined (PTFE, PFA, FEP, ETFE etc.)

6. Intervalve India Ltd.& EL-O-MATIC India Pvt.Ltd.: Authorized dealer

Intervalve & EL-0-MATIC India Ltd. Intervalve & EL-O-MATIC is making butterfly

valve, Ball valve & check valve & valve automation system.

7. VAAS Industries Pvt. Ltd.: Authorized dealer for Vaas. Vaas is making Knife Edge Gate

valve, Ball Valve & also Knife Edge Gate Valve & Ball Valve with Actuator.

1.3. VALVES

A valve is a mechanical device that controls the flow of fluid and pressure within a system or

process. A valve controls system or process fluid flow and pressure by performing any of the

following functions:

Stopping and starting fluid flow.

Varying (throttling) the amount of fluid flow.

Controlling the direction of fluid flow.

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Regulating downstream system or process pressure. Relieving component or piping over

pressure.

Because of the diversity of the types of systems, fluids, and environments in which valves must

operate, a vast array of valve types have been developed. Examples of some common types of

valves are globe valve, gate valve, ball valve, plug valve, butterfly valve, diaphragm valve, check

valve, pinch valve, and safety valve. Each type of valve has been designed to meet specific needs.

Valves are basically made up of Carbon Steel, Stainless Steel, Haste alloy, Alloy 20, Forged steel,

Polypropylene etc.

Figure: Ball Valve Figure: Butterfly Valve

Figure: Check valve

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Main Parts of a valve are:

• Body: The outer casting of a valve.

• Bonnet: It is the cover for opening the valve body.

• Trim: It includes disk, seat, stem and sleeves.

• Actuator: It is a mechanism or device to automatically or remotely control a valve from

outside the body.

• Packing: It is provided to prevent leakage between stem and bonnet.

• Ports: These are the passages that allow fluid to pass through the valve.

Classification of valves:

Regulating valve: Globe valve, needle valve, butterfly valve, ball valve, plug valve and

diaphragm valve.

Back Flow Prevention Valve: Check Valve.

Stop (Isolation Valve): Gate valve, Globe valve, ball valve, butterfly valve, plug valve,

diaphragm valve.

1.4. MECHANICAL SEALS

Figure: Polypropylene ball valve Figure: Polypropylene Foot valve

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A mechanical seal is a sealing device which forms a running seal between rotating and stationary

parts. Mechanical seal helps join systems or mechanisms together by preventing leakage (e.g. in a

plumbing system), containing pressure, or excluding contamination. The effectiveness of a seal is

dependent on adhesion in the case of sealants and compression in the case of gaskets.

Mechanical seals may be pusher seals, non-pusher seals, unbalanced seals, conventional seals,

balanced seals and cartridge seals.

A stationary seal may also be referred to as 'packing'.

Advantages of mechanical seals over conventional packing are as follows:

Zero or limited leakage of product (meet emission regulations.) Reduced friction and

power loss.

Elimination of shaft or sleeve wear.

Reduced maintenance costs.

Ability to seal higher pressures and more corrosive environments.

The wide variety of designs allows use of mechanical seals in almost all pump applications

Fig.: O-Ring mechanical seals Fig.: Carbon seal faces of mechanical seals

CHAPTER 2

2.1. OBJECTIVE OF THE PROJECT:

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To visit different hotels and hospitals in and around Kolkata and

collect the enquiries regarding their necessities of Industrial valves

and mechanical seals.

2.2. HOTELS VISITED

SL.NO DATE DAY TIME HOTELS

VISITED

REMARKS

1 07/05/2014 Wednesday 11.00 a.m.

The Oberoi

Grand

Postponed the meeting to

15-05-2014

2 07/05/2014 Wednesday 12.30 p.m.

The Lalit

Great Eastern

Hotel

Gave the catalogues to

Mr. Inder

Kohli

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3 08/05/2014 Thursday 11.30 a.m.

The Park

Hotel


09-05-2014

4 08/05/2014 Thursday 1.00 p.m.

The Senator

Hotel

Chief

Engineer not

present

5 08/05/2014 Thursday 2.00 p.m.

The Hotel

Hindustan

International


09-05-2014

6 08/05/2014 Thursday 4.00 p.m.

The Peerless

Inn


Mr. Joydeep

Kundu

7 09/05/2014 Friday 2.30 p.m.

The Park

Hotel


Mr. Ritesh

Surolia

8 09/05/2014 Friday 4.30 p.m.

The Hotel

Hindustan

International


Mr. Debashish

Sarkhel

9 13/05/2014 Tuesday 2.30 p.m.

The Lindsay

Hotel


Mr. Guddu

10 14/05/2014 Wednesday 2.30 p.m. Taj Bengal

Postponed the meeting to 15-

05-2014

11 15/05/2014 Thursday 2.30 p.m.

The Oberoi

Grand

Gave the

catalogues to

Mr. Soibal Das

SL.NO DATE DAY TIME

HOTELS

VISITED REMARKS

12 15/05/2014 Thursday 4.00 p.m. Taj Bengal


Mr. Laksh Preet

Singh

13 19/05/2014 Monday 4.00 p.m.

The Park

Hotel

Catalogue given

to Mr. Protir

Dutta

12

14 21/05/2014 Wednesday 12.00p.m.

ITC Sonar

Bangla

Catalogue given to Mr. Amitava

Bhattacharya

15 22/05/2014 Thursday 12.00 pm.

City Centre,

Salt Lake

Catalogues

Given to Mr.

Piyush

16 22/05/2014 Thursday 1.00 p.m. Hotel Sonnet

Chief Engineer

not present

17 22/05/2014 Thursday 1.30 p.m. De Sovrani

Chief Engineer

not present

18 22/05/2014 Thursday 2.30 p.m. Hyat Regency

Seal sample received from

Mr. B. Prabhu

19 23/05/2014 Friday

2.30 p.m. State Bank Of

India

Maintenance

head is not

present

20 23/05/2014 Friday 3.00 p.m. The Floatel

Chief Engineer

not present

21 23/05/2014 Friday 3.30 p.m.

The Calcutta

Swimming

Club


Mr.D.Goswami

22 29/05/2014 Thursday 3.00 p.m.

The Gateway

Hotel


Mr. Souvik

Dey

2.3. HOSPITALS VISITED

SL.NO DATE DAY TIME HOSPITALS

VISITED

REMARKS

13

1 27/05/2014 Tuesday 12.30p.m.

The Calcutta

Medical

Research

Institute

Catalogues

given to

Maintenance

Head

2 27/05/2014 Tuesday 1.45 p.m.

B.M. Birla

Heart

Research

Centre

Catalogues

given to

Purchase

Manager

3 27/05/2014 Tuesday 2.15 p.m.

Kothari

Medical

Centre and

Research

Institute

Catalogues

given to

Senior

Manager

of

Purchase

4 29/05/2014 Thursday 1.30p.m.

Ruby General

Hospital

Catalogues

given to

Maintenance

Head

5 29/05/2014 Thursday 2.30 p.m.

Desun

Hospital and

Heart

Institute

Chief

Engineer

is

Absent

CHAPTER 3

3.1. TASK PERFORMED

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The hotels that we visited mainly uses metal valves such as ball valves, butterfly valves, check

valves, globe valves etc with size varying from 15mm to 80 mm. The mechanical seals are basically

used in pressure booster pumps and fire fighting pumps. During our visits we basically introduced

valves and mechanical seals and handed over our catalogues to the concerned maintenance person

of the hotels. Their enquiries are being collected and are taken into consideration by the respective

persons of our company.

During our visits to the hospitals we find that they usually have requirements of metal valves like

gate valves, ball valves, butterfly valves and the valves that are used in fire fighter pumps. So we

handed over our catalogues of metal valves and mechanical seals to the respective persons of their

maintenance department.

CHAPTER 4

4.1. CONCLUSION

It has really been a great experience to work with SM Flow & Controls (P) Ltd. The company has

given us a platform where we could enrich our knowledge both theoretically and practically

regarding the mechanical seals and valves and the working principle of the various parts and its

importance not only in industrial field but also in the domestic uses of our day-to-day life. We are

really glad to work as a trainee with the company; also we are thankful to the company for giving

us such an opportunity to work with them.

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With time to come we thus hope that SM Flow and Controls achieve their vision and mission in

every possible way.

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CHAPTER 5

5.1. REFERENCES

Schweitzer, Phillips A. Handbook of Valves.

http:// www.google .com < mechanical seals>

"Valve Man Brand Kompact Series Wafer Type Ball Valve". ValveMan. Retrieved 18 June

2012

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