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PRECISE ENGINEERS

DHRUV EPC SOLUTIONS PVT. LTD.

Manufacturers of Dampers, Zero Velocity Valves, Check Valves, Bellows

Expansion Joints, Flange Adaptors, Dismantling Joints, Flanges,

Pipeline Spacers / Casing Insulators

Our Customers Serve The World…..

And We Serve Them

Committed to provide excellent & world class

products and services to all

Customers

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TABLE OF CONTENTS :

Cover Page…………………………………………………………. 1

Table of Contents………...……...…………………………………. 2

Overview of the Companies……………………………………….. 3

Introduction ……………………………………………………….. 4

Capabilities.……………………………………………………….. 5

Product of the Companies/Metal Expansion Joints………………... 6

Rubber Expansion Joints…………………………………….……...7

Expansion Joints Specification Sheet……………………………… 8

Fabric Expansion Joints……………………………………………. 9

Fabric Expansion Joints Specification Sheet………………………. 10

Dismantling Joints…………………………………………………. 11

Dismantling Joints Specification Sheet……………………………. 12

Spacer & Casing Insulators………………………………………... 13

Spacer & Casing Insulators Specification Sheet………………...… 14

Guillotine Damper…………………………………………………. 15

Louver Damper…………………………………………………….. 16

Diverter Damper & Butterfly Damper………..……………………. 17

Radial Vane Damper……………………………………………….. 18

Options & Accessories………………………………………………19

Damper Specification Sheet…….………………………………….. 20

Zero Velocity Valve & Dual Plate Wafer Check Valve ……………21

Our Valued Clients & Inspection Agencies…………………………22

Contact Details………………………………………………………23

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OVERVIEW OF COMPANIES :

M/s. Precise Engineers is engaged in designing, marketing, and

manufacturing a variety of high quality customized Expansion Joints,

Bellows, as per EJMA Code and standards and Dismantling joints,

Flange Adopters and Flanges Compensators along with boltless

Spacers/Casing Insulators…………………………………………….. (Unit : 1)

M/s. DHRUV EPC Solutions Pvt.Ltd. is engaged in designing,

marketing and manufacturing a variety of high quality customized

Guillotine Dampers, Louver Dampers, Diverter Dampers, Butterfly

Dampers, Radial Vane Dampers, Zero Velocity Valves, Butterfly

Valves, Dual Plate Check Valves ,Pressure Vessels, Heat Exchangers,

and Critical Fabrication……………………………………. (Unit : 2)

OUR MISSION :

To form alliance with professionally managed OEM & EPC Contractors,

Pipeline Contractors, Innovative Product Manufacturers, indenting

agents and importers/ distributors of developed countries for their

sourcing and marketing needs.

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INTRODUCTION:

Established in 1994, with 30 years exclusive experience, Precise

Engineers (PE) deals in design and manufacturing of sophisticated

Bellows, Expansion Joints, Dismantling Joints, Flange Adopters, Plate

Flanges, Pipeline Spacers, Casing Insulators and has been serving its

customers in core industries mainly in Refineries, Petrochemicals,

Power Generation, Heavy Steel Industries, Cement Plants, Ship

Building, Cross Country Pipelines for gas, Liquid & Water pumping

stations, Ministry of defense, Department of Atomic Energy, Sugar

Industries, Chemical process plants, Paper & Pulp Industries, Dairy

Industries etc.

While Dhruv EPC Solution Pvt. Ltd. (DESPL) is established in 2010

with broad setup of heavy fabrication and machining capabilities.

DESPL has excellent premises for Design and Development working

with highly educated staff. DESPL deals in design and manufacturing

the Guillotine Dampers, Louver Dampers, Diverter Dampers, Butterfly

Dampers, Radial Vane Dampers, Zero Velocity Valves, Dual Plate

Wafer Check Valve etc.

In addition DESPL is having infrastructure ready to accommodate EPC

Contractors/ Detail Engineering Consultants/ IT/ BPO to the to take of

100 persons. In case anyone wants to start their operations in state of

Gujarat are invited under JV arrangements.

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CAPABILITIES :

� ShopFacilities

UNIT :1 (P.E) UNIT:2(DESPL)

Manufacturing Floor Area 10,000 sq. ft 20,000 sq. ft

Total Land Area 16,000 sq. ft 30,000 sq. ft

Bridge Crane Capacity 6.5 ton 10 ton/ 20 ton

Maximum Hook Height 7 meter 7 meter

� Fabrication


Welding SMAW,MIG,TIG SMAW,SAW,MIG,TIG

Plate Roll 16 mm 25 mm

VTL - 4 m dia. To 30 t single

piece out m/cing

Radial Drill Up to 56 mm Dia. Up to 75 mm dia.

Section Bending Through third party approved Vendors.

Blasting & Painting Through third party approved Vendors.

� Quality Assurance Vedanta group of the companies have been certified to ISO 9001:2008

and compliance with ASME SEC VIII, EJMA, B31.3/31.1 for Unit :1

while for Unit: 2 is in process.

� Testing Capabilities & Design Verification Tests:


1) Dye Penetrant In House In House

2) X-Ray/UT Through third party approved Vendors.

3) M.P. Test Through third party approved Vendors.

4) Hydro Testing In House In House

5) Vacuum Test In House In House

6) Pneumatic Test In House In House

7) Spring Rate Test In House -

8) Squirm Test In House -

9) Yield Rupture In House -

10) Cyclic Life In House -

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PRODUCTS OF THE COMPANIES :

PRECISE ENGINEERS :

1) Expansion Joints :

� Metal Expansion Joints

We manufacture all types of Metallic Expansion Joints and Bellows as per

customer specific requirements. Our product range includes SS Circular

Expansion joints and Bellows from 200mm NB to 6000mm NB and

Rectangular Expansion joints to any size as per requirement for various

applications and differential pressure temperature as per EJMA.

Size range from 200mm NB to 6000mm NB

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� Rubber Expansion joint :

We design and manufacturing all types of Rubber Expansion Joints and

Bellows in Neoprene, Natural rubber grade for suction and discharge lines of

pumping stations.

Size range from 50mm NB to 2000mm NB

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Expansion Joints Specification Sheet (Metal Bellow type & Rubber type):

DETAILS TO BE FURNISHED FOR DESIGNING EXPANSION BELLOWS / JOINTS

01.

NAME OF THE CUSTOMER.

02. CONSULTANT.

03. PROJECT.

04. EQUIPMENT / LINE NO.

05. ITEM NO.

06. SIZE.

07. QUANTITY.

08. FLUID.

09. DESIGN PRESSURE IN KG / SQ. CM. G.

10. DESIGN TEMPERATURE IN DEGREE

CENTIGRADE

11. TEST PRESSURE IN KG/SQ. CM. G.

12. AXIAL COMPRESSION IN MM.

13. AXIAL EXTENSION IN MM.

14. LATERAL DEFLECTION IN PRINCIPAL

DIRECTION IN MM.

15. LATERAL DEFLECTION IN TRANSVERSE

DIRECTION IN MM.

16. ANGULAR ROTATION IN DEGREES

17. AXIL SPRING RATE IN KG / MM.

18. LATERAL SPRING RATE IN KG / MM.

19. ANGULAR MOVEMENT IN KG / MM.

20. MAXIMUM OUTSIDE DIAMETER IN MM.

21. OVERALL LENGTH IN MM.

22. INSTALLATION POSITION.

23. VIBRATION FREQUENCY IN CYCLES / SEC.

24. SEISMIC MOVEMENT IN MM.

25. CYCLIC LIFE IN CYCLES.

26 FLOW VELOCITY – Mt. / Sq.

27 REVERSE FLOW – Yes / No.

MATERIAL OF CONSTRUCTION (IF KNOWN)

01. BELLOWS.

02. WELDENDS.

03. FLANGE.

04. INTERNAL SLEEVE.

05. EXTERNAL COVER

06. TIE RODS / LIMIT RODS / HINGES /

GIMBAL.

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� Fabric Expansion joint :

Fabric expansion joints are used for absorbing movements caused by thermal

expansion of the pipes/ducts. Other functions are absorbing vibrations and

misalignments.

Material Of Construction

Fabric & Layers: Silicon Coated Glass Fabric/ PTFE Coated Glass Fabric/ PTFE Foil

Fillers: Glass/Ceramic

Flanges/Sleeve/Backup Bar / Neck/Fabric Fixing Flanges: MS/SS 304/SS 321/SS 321

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Fabric Expansion Joints Specification Sheet:

DETAILS TO BE FURNISHED FOR DESIGNING FABRIC EXPANION JOINTS

01.


02. CONSULTANT.

03. PROJECT.


05. ITEM NO.

06. SIZE.

07. QUANTITY.

08. FLUID.



CENTIGRADE

11. AXIAL MOVEMENT

12. LATERAL MOVEMENT

13. ANGULAR MOVEMENT

14. OVERALL LENGTH

15. END CONNECTION

16. ADDITIONAL INFORMATION IF ANY


01. FABRIC

02. FLANGES

03. DUCT

04. OTHERS IF ANY

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2) Dismantling Joints/Flange Adopters :

� Dismantling Joints & Flange Adopters

We design and manufacturing all types of Dismantling Joints and Flange

Adaptors for installation and dismantling of Pipeline attachments like

Pumps, Butter Fly Valves ,Flow Meters etc. as per the different pressure

ratings.

Size range: Any size

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Dismantling Joints Specification Sheet:

DETAILS TO BE FURNISHED FOR DESIGNING DISMENTALING JOINTS

01.


02. CONSULTANT.

03. PROJECT.


05. ITEM NO.

06. SIZE.

07. QUANTITY.

08. FLUID.



CENTIGRADE


12. FLANGE DIMENSIONS (O.D.,PCD,NOS.OF

HOLES,DIA.,THK.)

MATERIAL OF CONSTRUCTION (M.S./C.I./D.I./S.S)

01. FALNGE

02. INTERNAL SLEEVE

03. TIE RODS

04. NUTS & BOLTS

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� Spacer & Casing Insulators:

Casing Insulators are widely used to protect sensitive carrier pipes running under

bridges, roads, cannels & railway lines,

Features of spacers

- Electrical insulation of carrier pipe

- Protecting carrier pipe against mechanical damage during installation into

casing pipe.

- Abrasion resistance & less friction allow easy sliding of carrier pipe into

casing pipe.

- Protection of carrier pipe insulation during installation into casing pipe

Material Of Construction: HDPE (High Density Polyethylene) / Metal

HDPE properties

Temperature : -20 ºC to 85 ºC

Elongation : 180% to 1000%

Yield Strength : >20 MPa

Tensile Strength : >16 MPa

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Spacer & Casing Insulators Specification Sheet:

DETAILS TO BE FURNISHED FOR DESIGNING SPACER & CASING INSULATORS

01.


02. CONSULTANT.

03. PROJECT.


05. ITEM NO.

06. SIZE.

07. QUANTITY.

08. FLUID.



CENTIGRADE


12. CARRIER PIPE O.D. (WITH INSULATION IF

ANY)

13. CASING PIPE O.D.

14. TOTAL LENGTH OF UNDERGROUND PIPE

15. FLOW MEDIUM

16. NOS. OF CRIMPING TOOLS REQUIRED.


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DHRUV EPC SOLUTIONS PVT. LTD. :

1) Guillotine Damper:

• Also known as slide gate Damper

• Function is to isolate for maintenance/inspection/repair needs.

• Also used for bypass ducts.

• Mechanical elements are blade, peripheral seal, support members,

drive mechanism.

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2) Louver Damper:

The louver type of damper consists of several blades mounted parallel across

a duct, with centrally pivoted shafts extending out through a frame and

driven by a linkage. Louver dampers are versatile to handle any application

in the power plant.

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3) Diverter Damper:

Although any two dampers can be used to divert flow, Diverter dampers

are a common way to divert a flow of gas from one outlet to another.

Diverter Dampers can withstand with high temperatures. The blade not

in gas stream ,no erosion due to impact of particles.

4) Butterfly Damper:

The butterfly or wafer damper can be a stack damper where leakage is

not important. The butterfly damper is lightweight, simple, quickly

actuated, and low in cost.

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5) Radial Vane Damper:

• Cantilevered or center supported radial blades.

• Imparts whirl to medium.

• Possible buffering and vibrations.

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Options and Accessories for Dampers:

Dampers can be provided with a wide array of options and accessories designed to

improve performance, automate operation, provide system feedback, increase

safety or create redundancy for critical applications. The following is a sampling of

devices to consider when specifying or purchasing equipment:

� Materials of Construction

• CS/SS

• Nickel Alloy

• Inconel

• Hastelloy

• Monel

• Fiberglass etc

� Drives

• Dampers can be operated utilizing manual handwheels or actuator chain

falls.

• Automated actuators include electric, pneumatic and hydraulic.

• Damper control systems are designed to assume the closed, open or last

position upon loss of source power or signal.

� Linkage

• linkages are fixed and adjustable.

• Material : Hardened steel pivots with thin film PTFE(Teflon)bushings.

• Turn buckles to allow field adjustments.

� Bearings

• Bearings used when process temperatures do not exceeds 500 °F.

• Graphite sleeve bearings for 90 degree rotation and temperatures exceeding 500°F.

� Gland Packing & other Accessories • Limit or proximity switches

• Position transmitters

• Access doors

• Electric enclosures

• Conduit trim

• Personnel guards

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Damper Specification Sheet:

DETAILS TO BE FURNISHED FOR DESIGNING DAMPER

01.


02. CONSULTANT.

03. PROJECT.


05. ITEM NO.

06. SIZE.

07. QUANTITY.

08. FLUID.



CENTIGRADE


12. FLOW RATE

13. STYLE (Guillotine, Louver,Divertor,Butterfly,Radial

Vane)

14. PERMISSIBLE PRESSURE DROP.

15.. OVERALL LENGTH IN MM.

16.. INSTALLATION POSITION.


01. BLADE

02. FRAME

03. SEAL

04. SLIDING SEAL

05. EXTERNAL COVER

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6) Zero Velocity Valve:

• Used in water pumping systems.

• Prevents water hammer due to flow reversal.

7) Dual Plate Wafer Check Valve with Retainer:

The salient features include :-

• API 6A valves ranging from API 5000 to API 10000.

• Soft Seated and Metal to Metal Seated.

• Optimum Spring Design for more than 1 million cycles.

• Zero Velocity Non Slamming Characteristics.

• No Valve - Induced Water Hammer Effect.

• Standard compliance with API 594, 598 & 6D, BS 6364, API 6FA amongst

others.

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Our Valued clients:

Partners in our growth…..

Indian Oil Corporation Ltd.

Steel Authority of India

Bharat Heavy Electricals Ltd.

Gujarat State Fertilizers & Chemicals Ltd

National Thermal Power Corporation Ltd.

Larsen & Toubro Ltd.

Vizag Steel

Rate contract with International Companies (MNC)

Achievements for Expansion Joints

FCCU-Incinerator - 2200 mm – 3 nos.(Refinery )

Blast Furnace - 1900 Dia.-Steel

High Pressure - 3700 Psi (Offshore)

Max. Size Steel - 2600 Dia. – 6 Nos.

Max. Size Cement - 3900 dia.

Max. Rectangular - 3383 x 8488-8 Nos.(With round corner)

Max. Size Water - 2750 – 31 Nos. (To single client)

Max. Size Refinery - 2692

Max. Size Power - 1800

Max. Temperature - 900 Deg. C ( Operating move than 12 years now)

Single Biggest order of Rs. 4.18 crore.

Max. orders in one year by single client – 70 Numbers

Supplying to five OEMS since more than 7 years continuously with average

order per year is 20 Nos.

Max. nos. of expansion joints supplied to single project is 342 nos. with size

range of dia. 80mm to 2400mm.

Inspection Agencies:

TECHNIMONT ICB

ABS

KVAERNER POWER GAS

BVIS

TUV-SUD

PDIL

RITES

LRIS

CEIL

MECON

DNV

SGS

JOCOBS H&G

TOYO

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Contact Details:

Mr. Rajesh R. Dhruv (C.E.O.)

Mobile : +91 9426073186

Phone : +91 2692 236698 / 235344 /

237066

Fax : +91 2692 236698 / 235344 / 237066

Email : [email protected]

Mr. S. J. Mehta ( General Manager –

Business Development for unit 1& 2 )

Mobile : +91 93777 73186

Phone : +91 2692 236698 / 235344 /

237066

Fax : +91 2692 236698 / 235344 / 237066

Email : [email protected]

Thanking you and Awaiting for your valued enquires. In case you have registration

procedure, please send details to enable us submit the same.

PRECISE ENGINEERS

(UNIT : 1)

Plot no.705/18,Phase IV,G.I.D.C.,

Estate

Vitthal Udyognagar-388 121.

Dist. Anand, Gujarat, India.

Dhruv EPC Solutions Pvt.Ltd.

(UNIT : 2)

Plot No.44-45-46, G.I.D.C.

Manjusar,Tal,Savli

Dist. Vadodara-391 775

Gujarat. India

our customers serve the world ….. and we serve...

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