Information……………………………….……………….…1

Description and Dimensions ………………………..….. 2

Physical Analysis ………………………………………….. 4

Graph: Statics …...………............................................... 5

Graph: Dynamics (Natural Frequency) ……………...… 7

Insulation Grade Graph ………...…………………..……. 7

Uses…………………………………………………..………9

Index

Supply Version and Installation …………....... 3

Sag test to measure the

resistance of the spring

attached to the framework

The VIB 40.000 insulators are metal spring

isolators formed by the parallel assembly of

four basic insulators from to the VIB 1.000

SERIES (see DT-1000).

They provide a very high vibration insulation

due to its very low damping factor (t= 0,001).

Three main vibroacustics objectives are

covered:

Information

Description and dimensions

- Decreasing vibrations transmission.

- Reducing structural noise induced by mechanical vibrations in buildings and facilities.

- Highly recommended for insulating machinery operating at low working cycles (above

600 rpm).

- Natural Frequency 7 to 3 Hz.

1. Steel spring with high resistance that is compliant

with DIN standards, subsequently treated with shot

peeling to extend its resistance to fatigue under

permanent conditions of stress. Surface finish coated

with EPOXY protection.

1. Steel bushings, fixed by two systems:

1.2 Mechanically, by means of two protuberances

that imprison the last turn of the spring and prevent

the spring from buckling (see the buckling image of

an insulator under test).

2.2 By means of viscoelastic putty that joins both

parts and avoids the direct contact of the metallic

parts and favors the acoustic opacity to the metallic

noise.

2. Closed internal flexible polyethylene filler, to

prevent solid elements from entering and

damaging the spirals under load.

3. Metal base, with rib for increased stiffness. Oval

holes to facilitate its centering and anchoring to the

ground.

2

31

4P

rohib

ida su re

pro

ducció

n tota

l o

parc

ial s

in pre

via

auto

rizació

n

1

Pro

hib

ida su re

pro

ducció

n tota

l o

parc

ial s

in pre

via

auto

rizació

n

Description and dimensions

131

206

119

172

12

24

165

M16

2

Supply Versions and Installation

Accesory: leveling

bolt M-16

AS FOR THE FINISH, TWO VERSIONS AVAILABLE

STANDART version

Galvanized protection

Versión “E” Epoxy

Protección anticorrosión

Antioxidant EPOXY coating finish

+P

rohib

ida su re

pro

ducció

n tota

l o

parc

ial s

in pre

via

auto

rizació

n

Accessory for precompressed version Large base insulation accessories

Levelling installation

Assembly with special top base

Direct installation

Assembly with plain top

base for free positioning

3

Physical Analysis

Nota:1 kgf (kilogramo fuerza) = 9,807 N = 0,98 daN = 1kp

• Working temperature range: -90ºC to 200ºC

• Admissible overload: 50% of its maximum load

LATERAL SHIFTING

Should the structure where the isolator is attached expand, isolators may shift laterally the

maximum values shown in the following table:

Compression

[mm]

shear

[mm]

MÁX.

deflection25mm

MÁX.

deflection10-16mm

Vibcon

Modelo

Elastic constant

K

[kgf/mm]

Static compression load/

Minimun and maximun [kgf ](1)Isolator’s

Weight

[kg]

Mínima Máxima Optima

Kz Kx/Kz

Ky/Kz kgf mm kgf mm kgf

VIB 40.400 16 1,6 40

2,5 mm

400

25 mm

80-368 4,5

VIB 40.450 18 1,6 45 450 90-414 4,5

VIB 40.500 20 1,6 50 500 100-460 4,5

VIB 40.550 22 1,6 55 550 110-506 4,5

VIB 40.600 24 1,5 60 600 120-552 4,5

VIB 40.700 28 1,5 70 700 140-644 4,5

VIB 40.800 32 1,5 80 800 160-736 4,5

VIB 41.000 40 1,5 100 1.000 200-920 4,5

VIB 41.200 48 1,5 120 1.200 240-1.104 5,5

VIB 41.400 56 1,5 140 1.400 280-1.288 5,5

VIB 41.600 64 1,5 160 1.600 320-1.472 5,5

VIB 41.800 72 1,5 180 1.800 360-1.656 6

VIB 42.000 80 1,5 200 2.000 400-1.840 6

VIB 42.200 88 1,5 220 2.200 440-2.024 6

VIB 42.400 96 1,5 240 2.400 480-2.208 6

VIB 42.500 109 1,5 250 2.504

23 mm

501-2.304 6

VIB 42.800 122 1,5 280 2.800 560-2.576 6

VIB 43.000 130 1,4 300 3.000 600-2.760 6

VIB 43.200 139 1,4 320 3.200 640-2.944 6

Pro

hib

ida su re

pro

ducció

n tota

l o

parc

ial s

in pre

via

auto

rizació

n

Kz

KxKy

4

Pro

hib

ida su re

pro

ducció

n tota

l o

parc

ial s

in pre

via

auto

rizació

n

Graph: Statics

0,0 kgf

100,0 kgf

200,0 kgf

300,0 kgf

400,0 kgf

500,0 kgf

600,0 kgf

0 mm 5 mm 10 mm 15 mm 20 mm 25 mm

VIB 40.400

VIB 40.450

VIB 40.500

VIB 40.550

VIB 40.600

0,0 kgf

200,0 kgf

400,0 kgf

600,0 kgf

800,0 kgf

1000,0 kgf

1200,0 kgf

1400,0 kgf

0 mm 5 mm 10 mm 15 mm 20 mm 25 mm

VIB 40.700

VIB 40.800

VIB 41.000

VIB 41.200

VIB 41.400

0,0 kgf

400,0 kgf

800,0 kgf

1200,0 kgf

1600,0 kgf

2000,0 kgf

0 mm 5 mm 10 mm 15 mm 20 mm 25 mm

VIB 41.400

VIB 41.600

VIB 41.800

VIB 42.000

VIB 42.200

5

0,0 kgf

250,0 kgf

500,0 kgf

750,0 kgf

1000,0 kgf

1250,0 kgf

1500,0 kgf

1750,0 kgf

2000,0 kgf

2250,0 kgf

2500,0 kgf

2750,0 kgf

3000,0 kgf

3250,0 kgf

0 mm 5 mm 10 mm 15 mm 20 mm 25 mm

VIB 42.400

VIB 42.500

VIB 42.800

VIB 43.000

VIB 43.200

Pro

hib

ida su re

pro

ducció

n tota

l o

parc

ial s

in pre

via

auto

rizació

n

Graph: Statics

6

Pro

hib

ida su re

pro

ducció

n tota

l o

parc

ial s

in pre

via

auto

rizació

n

Graph: Dynamics (Natural Frequency)…

Insulation Grade Graph

This graph is used to select the precise compression deflection for obtaining an

Insulation Grade, expressed in %, depending on the minimum revolutions of the

equipment.

This graph is only valid for Vibcon metal spring insulators and is not applicable for any

other countertype on the market.

2

4

6

8

10

12

14

16

1 3 5 7 9 11 13 15 17 19 21 23 25

[Hz]

[mm]

0

5

10

15

20

25

500 600 700 800 900 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000

Fle

ch

a d

e c

om

pre

sió

n [m

m]

Frecuencia excitatriz en rpm

70% 80% 85% 90% 95% 98% 99%

7

Pro

hib

ida su re

pro

ducció

n tota

l o

parc

ial s

in pre

via

auto

rizació

n

Insulation Grade Graph

EXAMPLE: Air-water cooling plant with compressors working at 25% (750 rpm).

• The TURBULENCE FREQUENCY is taken as the minimum revolutions, i.e., 750

rpm

• For compliance with the RITE an insulation of ≥ al 90% is required

• A vertical line is drawn on axis x in 750 until it intersects with the curve of 90%

• Then a horizontal line is drawn from the intersection point obtained to the axis, to

OBTAIN THE MINIMUM DEFLECTION (18 mm) the load insulator must comply

with the insulation conditions based on RITE.

• If once under load the insulator is compressed to obtain a deflection of > 18mm, it

will be compliant with RITE.

WHEN CALCULATING INSULATION GRADE, LOAD AND MINIMUM TURBULENCE

FREQUENCY ARE ALWAYS REQUIRED

CALCULATIONS TAKING ONLY INTO ACCOUNT THE LOAD ARE NOT PROPER

CRITERION FOR SELECTING THE INSULATION GRADE

ZONE Description GRADE IN %

NON-CRITICAL

ZONE

Industrial warehouses on industrial estates

Basements.

Areas far from places that are sensitive to

structural noise and vibrations.

85%

CRITICAL ZONE

Roofs of apartment blocks, offices or public

buildings.

Zones that are sensitive to the transmission

of structural noise and vibrations.

90-95 %

VERY CRITICAL

ZONE

Auditoriums, theatres, cinemas, congress

halls, hospitals, etc.

Zones in which very low levels of noise and

vibrations are required.

>95%

Criterio R.Torres s/estudiós Higini Arau

8

Pro

hib

ida su re

pro

ducció

n tota

l o

parc

ial s

in pre

via

auto

rizació

n

Uses

• Air conditioners

• Heating pumps

• Water/air chillers

• Generating sets

• Estructures

• Etc.

9