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Technical Papers & Success Stories

Dry Screw Vacuum Pumps for Clean Process Applications in API Industry

Dry screw vacuum pumps are widely used in manufacturing, pharmaceutical, nuclear research and petrochemical industries.

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Vacuum Applications in Phenol Derivatives Extraction and Vacuum System Selection

Abstract - Phenol is a major pollutant because of the presence in the products of major processing and refining plants. It has a significant short-term and long-term impact on many materials used in manufacturing

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Structural Analysis to Study the Effect of Root Fillet Radius on Mechanical Properties of a Helical Gear Used in Dry Screw Vacuum Pump

Abstract - Helical gears have been widely used in the dry screw vacuum Pump industry. This paper described FEA software Ansys Mechanical to study

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Dry screw vacuum pumping system in vacuum / Pressure impregnation process

Vacuum Pressure Impregnation (VPI) is a process that uses vacuum and pressure to seal porous materials with varnish or resin. The process is used primarilyto fill gaps in materials to create a void free insulation in various devices.

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Dry screw vacuum pumping system in squalene distillation from fish oil

Squalane, a saturated hydrocarbon (C30H62), is obtained by hydrogenation of squalene, which have been used as cosmetics for moisturizer. At present, squalane is used as cosmetics, medicines and sometimes used with fibers.

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Oleoresins & curcumin extraction from turmeric rhizome under vacuum

Curcumin is extracted from the dried root of the rhizome Curcuma Longa (Turmeric). The process of extraction requires the raw material to be ground into powder, and washed with a suitable solvent that selectively extracts coloring matter.

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Dry screw vacuum pumping system in industrial effluent treatment process based on evaporation technology.

Evaporation is a type of vaporization that occurs on the surface of a liquid as it changes into the gas phase after reaching its boiling point.

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Dry screw vacuum pumping system in current and potential transformer drying and degassing

The presence of moisture in the transformer, to whatever degree, does actual harm to insulation which is, in fact permanent damage. Drying methods only substantially reduce that deterioration.

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Dry screw vacuum pumping system in biodiesel production

Biodiesel is simply a liquid fuel derived from vegetable oils and fats, which has similar combustion properties to regular petroleum diesel fuel.

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Conversion Chart

Pressure Vacuum

mbar (hPa)

bar

Pa (N/m2)

KPa

atm

Kgf cm -2(at)

mm H2O

Torr (mm Hg)

micron

in Hg

in H2O

lbfin-2 (psi)

1 mbar

1×10-3

102

0.1

9.869×10-4

1.02×10-3

10.197

0.75

750

2.953×10-2

0.402

1.45×10-2

1 bar

103

1×105

100

0.987

1.02

1.02×104

7.5×102

7.5×105

29.53

4.015×102

14.5

1 Pa (N/m2)

0.01

1×10-5

0.001

9.869×10-6

1.02×10-5

0.102

7.5×10-3

7.5

2.953×10-4

4.015×10-3

1.45×10-4

1 KPa

0.01

103

9.869×10-3

1.02×10-2

1.02×102

7.5

7.5×103

0.295

4.015

0.145

1 atm

1.013×103

1.013

1.013×105

1.013×102

1.033

1.033×104

7.6×102

7.6×105

29.92

4.068×102

14.7

1 Kgfcm-2(at)

9.807×102

0.981

9.807×104

98.07

0.968

104

7.356×102

7.356×105

28.96

3.937 x 102

14.22

1 mm H2O

9.807×10-2

9.807×10-5

9.807

9.807×10-3

9.677×10-5

10-4

7.354×10-2

73.54

2.896×10-3

3.394×10-2

1.42×10-3

1 Torr (mm Hg)

1.333

1.333×10-3

1.333×102

1.333×10-1

1.316×10-3

1.36×10-3

13.59

103

3.937×10-2

0.535

1.934×10-2

1 micron

1.333×10-3

1.333×10-6

1.333×10-1

1.333×10-4

1.316×10-6

1.36×10-6

1.359×10-2

10-3

3.937×10-5

5.35×10-4

1.934×10-5

1 in Hg

33.86

3.386×10-2

3.386×103

3.386

3.342×10-2

3.453×10-2

3.45×102

25.4

2.54×104

13.6

0.491

1 in H2O

2.491

2.491×10-3

2.491×102

0.249

2.458×10-3

2.54 x 10-3

25.4

1.868

1.868X103

7.356×10-2

3.613×10-2

1 lbfin-2 (psi)

68.95

6.895×10-2

6.895×103

6.895

6.805×10-2

7.03×10-2

7.03×102

51.71

5.171×104

2.036

27.68

Vacuum Conversion : Absolute pressure p (mbar abs.) can be converted to & from pressure difference DP (inches Hg) based on atmospheric pressure of 1013 mbar abs. (= 760 Torr = 29.92 inches Hg abs.) using the followng formula : 29.92 – 2.953X10-2 Xp(mbar abs) = Dp (inches Hg) ; 1013-33.86 X Dp (inches Hg) = p (mbar abs.)

Capacity

	m3/h	m3/min	m3/s	l/min	cfm (ft3min-1)	gal/min
1 m3/h	1	1.667×10-2	2.778×10-4	16.67	0.588	4.403
1 m3/min	60	1	1.667×10-2	103	35.28	2.642×102
1 m3/s	3600	60	1	6×104	2.117×103	1.585×104
1 l/min	6×10-2	10-3	1.667×10-5	1	3.528×10-2	0.264
1 cfm(ft3min-1)	1.699	2.832×10-2	4.72×10-4	28.32	1	7.481
1 gal/min	0.227	0.378	6.306×10-5	3.784	0.133	1

Efficiency

	KW	W(J/S)	PS	Hp	Kcal/hr	Btu/hr
1 KW	1	103	1.36	1.341	860	3.412×103
1 W(J/S)	10-3	1	1.36×10-3	1.341×10-3	0.860	3.412
1 PS	0.736	736	1	0.986	6.329×102	2.509×103
1 hp	0.746	7.46	1.014	1	6.413×102	2.545×103
1 Kcal/hr	1.163×10-3	1.163	1.58×10-3	1.559×10-3	1	3.968
1 Btu/hr	2.931×10-4	0.2931	3.985×10-4	3.93×10-4	0.252	1

Length

	mm	cm	m	in	ft	yd
1 mm	1	0.1	10-3	3.94×10-2	3.28×10-3	1.093×10-3
1 cm	10	1	10-2	0.394	3.28×10-2	1.093×10-2
1 m	103	102	1	39.4	3.28	1.093
1 in	25.4	2.54	2.54×10-2	1	8.33×10-2	2.78×10-2
1 ft	3.048×102	30.48	0.305	12	1	0.333
1 yd	9.144	0.914×102	0.914	36	3	1

Volume

	ml(cm3)	l(dm3)	in3	ft3	imp.gal	U.S.gal
1 ml(cm3)	1	10-3	0.061	3.53×10-5	2.20×10-4	2.64×10-4
1 ldm3	103	1	0.610×102	3.53×10-2	0.220	0.264
1 in3	16.39	1.639×10-2	1	5.79×10-4	3.606×10-3	4.327×10-3
1 ft3	2.83×104	28.3	1.728×103	1	6.25	7.46
1 lmp.gal	4.55×103	4.55	2.773×102	0.160	1	1.20
1 U.S.gal	3.785×103	3.785	2.311×102	0.134	0.833	1

Weight

	g	Kg	oz	lb	Brit.ton	U.S.ton
1 g	1	10-3	3.53×10-2	2.205×10-3	0.984×10-6	1.103×10-6
1 Kg	103	1	35.3	2.205	0.984×10-3	1.103×10-3
1 oz	28.35	2.835×10-2	1	6.246×10-2	2.788×10-5	3.125×10-5
1 lb	454	0.454	16.01	1	4.463×10-4	5.00×10-4
1 Brit.ton	1.016×106	1.016×103	3.587×104	2.24×103	1	1.120
1 U.S.ton	0.907×106	0.907×103	3.2X104	2.00×103	0.893	1

Temperature

Tempature Conversion tc (°C) — tf (°F)
1.8 x tc (°C) + 32 = tf (°F)
0.556 x tf (°F) – 17.78 =tc (°C)

Steam Table — Positive Pressure

View Steam Table

Product Catalogue

Mechanical Vacuum System for Steel Degassing

Everest Vacuum has been able to secure for itself a strong pole position in becoming the only successful Indian manufacturer of Dry Screw Vacuum Pumps & the largest manufacturer (in nos.) for Mechanical Vacuum Boosters in India

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Empowering your Industrial Processes with our Vision and Ambitions-1

EVEREST started manufacturing Twin Lobe Rotary Air (Positive Displacement) Blowers way back in 1980. Over the years the company has expanded its technological base as well as setup, bringing a wide range of products.

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Empowering your Industrial Processes with our Vision and Ambitions

EVEREST started manufacturing Twin Lobe recognized R&D lab by DSIR, Government of India Rotary Air (Positive Displacement) Blowers and continuously re-invest into R&D to update and way back in 1980.

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Technical Bullentin 6

Mechanical Vacuum Boosters, manufactured by EVEREST, are being extensively used in chemical process industry to boost the performance of the vacuum pumps, in low-pressure range, where conventional vacuum pumps have poor volumetric efficiency.

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SuperVac Dry Screw Vacuum Pumping Systems

Everest Vacuum a brand of Everest Blower Systems Private Limited brings to its customers, high efficiency and high displacement Dry Vacuum Pumping Systems | SuperVac

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SuperScrew Dry Screw Vacuum Pumps

Everest Vacuum a brand of Everest Blower Systems Private Limited brings to its customers, hybrid combined variable pitch Dry Screw Vacuum Pumps | SuperScrew

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EMVO Rotary Vane Vacuum Pumps and SuperVane Vacuum Package

Everest a brand of Everest Blower Systems Private Limited brings to its customers, Single Stage Oil Sealed Rotary Vane Vacuum Pumps and (EMVO + MVB). and are used in a growing number of applications where a low-cost vacuum is required for the process industry.

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OilSyst Vacuum System

Everest Vacuum a brand of Everest Blower Systems Private Limited brings to its customers, a milestone product Vacuum System. This engineered vacuum package consists of two/three stage Mechanical Vacuum Booster combination

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MVR|MVC Mechanical Vapour Compressor

These specially designed compressors are meant to handle steam vapour which can be reused to cover the latent of vaporization, in turn providing a heavy saving in energy and utilities.

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Mechanical Vacuum Boosters

Everest Mechanical Vacuum Boosters EVB are used in growing number of applications where fast pump downtime's are required and environment or energy usage concerns, rule out any alternative pump selection.

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TYPE	IN TEMP.	OUT TEMP
PRIMARY
SECONDARY
TERTIARY

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Technical Papers & Success Stories

Food and Beverage Drying

TGV Group Food and Beverage Drying

Curcumin (Oleoresin)

Alpha Tocopherol and Biodiesel

Cardanol Oil Distilation

Monochlorobenzene and Sulfolene Distillation

Bark Process Trial Report

Dry Screw Vacuum Pumps for Clean Process Applications in API Industry

Vacuum Applications in Phenol Derivatives Extraction and Vacuum System Selection

Structural Analysis to Study the Effect of Root Fillet Radius on Mechanical Properties of a Helical Gear Used in Dry Screw Vacuum Pump

Dry screw vacuum pumping system in vacuum / Pressure impregnation process

Dry screw vacuum pumping system in squalene distillation from fish oil

Oleoresins & curcumin extraction from turmeric rhizome under vacuum

Dry screw vacuum pumping system in industrial effluent treatment process based on evaporation technology.

Dry screw vacuum pumping system in current and potential transformer drying and degassing

Dry screw vacuum pumping system in biodiesel production

Conversion Chart

Pressure Vacuum

Capacity

Efficiency

Length

Volume

Weight

Temperature

Steam Table — Positive Pressure

Product Catalogue

Mechanical Vacuum System for Steel Degassing

Empowering your Industrial Processes with our Vision and Ambitions-1

Empowering your Industrial Processes with our Vision and Ambitions

Technical Bullentin 6

SuperVac Dry Screw Vacuum Pumping Systems

SuperScrew Dry Screw Vacuum Pumps

EMVO Rotary Vane Vacuum Pumps and SuperVane Vacuum Package

OilSyst Vacuum System

MVR|MVC Mechanical Vapour Compressor

Mechanical Vacuum Boosters

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