Vibration Isolation Equipment - nendle
23
Vibration Isolation Equipment
Transcript of Vibration Isolation Equipment - nendle
Vibration Isolation Equipment
NendleTM
DATA SHEET No :
HEAD OFFICE:TACITUS HOUSE, 153 HIGH STREET,ALDERSHOT, HANTS. GU11 1TT.TEL: +44 (0) 1252 344222 FAX: +44 (0) 1252 333782
e-mail: [email protected] web site: www.nendle.co.uk
E&EO
Nendle reserve the right to update equipment design at anytime without prior notice.
SOUTH WEST REGIONAL OFFICE:THE SHIP, WEST STREET, BANWELL, SOMERSET, BS29 6DA.TEL: +44 (0) 1934 820777 FAX: +44 (0) 1934 820682
e-mail: [email protected] web site: www.nendle.co.uk
10/1100/F/001EINTRODUCTION TOVIBRATION ISOLATION
Rubber in shear mountings
CLAMPAD isolation pads
Open spring mountings up to100mm static deflection
Caged spring mountings up to 50mm static deflection
Restrained spring mountings up to 25mm static deflection
TM
Positional isolation hangers
Spring and rubber isolation assemblies
Inertia base systems
Flexible connections
Floating floor systems
Technical application back-up
Vibration surveys
INTRODUCTION TO VIBRATION ISOLATION
IMPORTANCE OF STATIC DEFLECTION
ISOLATION EFFICIENCY CHART
To isolate unwanted machine vibration, it was once sufficient to mount the offending equipment on a piece of cork or felt. But today, with greater knowledge and higher expected standards,this traditional solution is usually inadequate, both in large building structures and in general industrial enviroment.
In building construction, improved design allows lighter but inherently more flexible structures to be used. At the same time, increasingly powerful air-conditioning and auxiliaryequipment is needed and may often be installed in upper level
Similarly in general industry, the size of vibration producingequipment is increasing whilst the community and workforcedemand improved living and working conditions, free from severe vibration or structure born noise.
Both situations require engineered vibration control systems which give predictable results appropriate to the surrounding environment.
plantrooms. Equipment vibration therefore can be a major problem in such structures.
Isolation of vibration is accomplished by supporting the equipment on resilient mounting elements such as springs or rubber, which compress under the equipment weight. The degree of isolation achieved is directly related to the amount
of compression (i.e. static deflection) of the mounting.The greater the static deflection which can be achieved (without compressing too solid) , the better will be the resulting vibration isolation.
This chart illustrates the theoretical relationship betweenisolation efficiency, disturbing frequency and static deflection (or dynamic natural frequency) for a simple isolation system ona rigid foundation. It is also grouped into zones suggestingisolation efficiency ranges appropriate to different applications.
To use the chart, determine the lowest rotation speed of the equipment and consider this to be the disturbing frequency.Move vertically to intersect the diagonal line corresponding tothe percentage isolation required; then move horizontally leftand read the dynamic natural frequency or static deflection required of the mounting.
It is sufficient to use static deflection to select the correctisolator for spring mounted systems; but for rubber and pad mounts, selection should be made on the basis of dynamicnatural frequency.
SHOCK ABSORPTIO
N
APPLICATIO
NS
AMPLIF
ICATIO
N
TO B
E AVO
IDED
NON-C
RITIC
AL
APPLICATIO
NSG
ENERAL
APPLICATIO
NSCRIT
ICAL
APPLICATIO
NS20
00
3000
1000800
600
400
300
500
200
100
DISTURBING FREQUENCY CYCLES PER MINUTE
STA
TIC
DE
FLE
CT
ION
(m
m)
250200150125
10075
50
2520
1512107.5
5.0
2.52.0
1.5
0.50.751.01.3
0.2531.0
22.0
14.016.0
12.0
10.0
7.0
8.0 9.0
6.0
5.0
4.0
3.0
2.5
2.0
1.5
1.0
0%
70%
90%
80%
95%
97%
98%
99%
NON-C
RITIC
AL
APPLICATIO
NS
97%
CRITIC
AL
APPLICATIO
NSGENERAL
APPLICATIO
NS
99%
98%
95%
90%
80%
90%
90%
70%
80%
80%
CRITIC
AL
APPLICATIO
NS
CRITIC
AL
APPLICATIO
NS
400
300
500
600
800
1000
GENERAL
APPLICATIO
NS
GENERAL
APPLICATIO
NS
3000
2000
99%
99%
CRITIC
AL
APPLICATIO
NS
CRITIC
AL
APPLICATIO
NS
CRITIC
AL
APPLICATIO
NS
CRITIC
AL
APPLICATIO
NS
1000
1000
3000
3000
99%
99%
99%
99%
97%
NON-C
RITIC
AL
APPLICATIO
NS
97%
NON-C
RITIC
AL
APPLICATIO
NS
CRITIC
AL
APPLICATIO
NS
CRITIC
AL
APPLICATIO
NS
CRITIC
AL
APPLICATIO
NS
CRITIC
AL
APPLICATIO
NS
CRITIC
AL
APPLICATIO
NS
CRITIC
AL
APPLICATIO
NS
CRITIC
AL
APPLICATIO
NS
CRITIC
AL
APPLICATIO
NS
1000
1000
1000
1000
GENERAL
APPLICATIO
NS
GENERAL
APPLICATIO
NS
GENERAL
APPLICATIO
NS
GENERAL
APPLICATIO
NS
3000
3000
3000
3000
2000
2000
99%
99%
99%
99%
99%
99%
99%
99%
98%
98%
95%
95%
AM
PL
IFIC
AT
ION
TO
BE
AV
OID
ED
97%
97%
97%
97%
CRITIC
AL
APPLICATIO
NS
CRITIC
AL
APPLICATIO
NS
CRITIC
AL
APPLICATIO
NS
CRITIC
AL
APPLICATIO
NS
CRITIC
AL
APPLICATIO
NS
CRITIC
AL
APPLICATIO
NS
CRITIC
AL
APPLICATIO
NS
CRITIC
AL
APPLICATIO
NS
CRITIC
AL
APPLICATIO
NS
CRITIC
AL
APPLICATIO
NS
CRITIC
AL
APPLICATIO
NS
CRITIC
AL
APPLICATIO
NS
CRITIC
AL
APPLICATIO
NS
CRITIC
AL
APPLICATIO
NS
CRITIC
AL
APPLICATIO
NS
CRITIC
AL
APPLICATIO
NSGENERAL
APPLICATIO
NS
GENERAL
APPLICATIO
NS
GENERAL
APPLICATIO
NS
GENERAL
APPLICATIO
NS
GENERAL
APPLICATIO
NS
GENERAL
APPLICATIO
NS
GENERAL
APPLICATIO
NS
GENERAL
APPLICATIO
NS
99%
99%
99%
99%
99%
99%
99%
99%
99%
99%
99%
99%
99%
99%
99%
99%
98%
98%
98%
98%
RESONANCE
0%
90%
90%
90%
90%
70%
70%
80%
80%
80%
80%
DY
NA
MIC
NA
TU
IRA
L F
RE
QU
EN
CY
( n
) H
Zf
NendleTM
DATA SHEET No :
HEAD OFFICE:TACITUS HOUSE, 153 HIGH STREET,ALDERSHOT, HANTS. GU11 1TT.TEL: +44 (0) 1252 344222 FAX: +44 (0) 1252 333782
e-mail: [email protected] web site: www.nendle.co.uk
E&EO
Nendle reserve the right to update equipment design at anytime without prior notice.
SOUTH WEST REGIONAL OFFICE:THE SHIP, WEST STREET, BANWELL, SOMERSET, BS29 6DA.TEL: +44 (0) 1934 820777 FAX: +44 (0) 1934 820682
e-mail: [email protected] web site: www.nendle.co.uk
10/1100/B/001EEFFECTIVENESS OFISOLATION
EFFECTIVENESS OF ISOLATION
STATIC DEFLECTION GUIDE
USING VIBRATION MOUNTINGS
The effectiveness of any resilient isolation system is usuallyexpressed in terms of its isolation efficiency, defined as thepercentage of the total vibratory force which is absorbed by theisolators.
Using the graph, the isolation efficiency of a simplespring system may be estimated from given values of staticdeflection and disturbing frequency. For rubber isolators, amore realistic estimate is obtained by using values of dynamic natural frequency instead of static deflection.
However, in assesing the level of isolation efficiency whichmight be acceptable in any situation, consideration must also be given to the following:
Equipment type and operating weight
Magnitude and nature of the vibratory forces
Restriction on equipment motion (see Inertia Blocks ) Location of equipment within the structure
For example, an isolation efficiency of 80% is probably satisfactory for a 5 kW machine located in the basement, buttotally inadequate for a 100 kW machine installed on a flexible upper level floor; particularly when adjacent to valuable office or residential accomodation. In this case an isolationefficiency close to 98% would be required.
The Static Deflection Guide shown below summarises theimportant theoretical relationship between disturbing frequency, static deflection and installed environment.
The table provides a guide to the isolator type and necessarystatic deflection for given values of operating speed and isolation efficiency. It also suggests appropriate levels of isolation efficiency for various operating locations.To use the table, read the minimum static deflection directlyagainst machine disturbing frequency (operating speed) andrequired isolation efficiency.Two static deflection figures appear, one for basement or ongradeinstallations; the other for upper level installations wheresome allowance is made for flexibility of the supporting structure.Select the appropriate figure.For rubber and pad mounts, static deflections have been corrected for average rubber hardness to approximate selectionsbased on dynamic natural frequency (see Isolation EfficiencyChart on previous page)
Some simple guidelines for successful vibration control:
(1) Mounting support points and load ratings should be selected so that the static deflections of all mountings are as uniform as possible.
(2) Unrestricted movement of resiliently mounted equipment is essential for effective isolation.
* Ensure that adequate clearance is maintained around the installed equipment, particularly underneath it, to permit free movement - especially where high deflection mountings are used.
* All connections to resiliently supported equipment should themselves be flexible. As well as restricting equipment motion, any fixed connection can offer a direct path for transmission of vibration to the surrounding structure, bypassing the isolation system.
(3) Top heavy machinery, especially when mounted on a narrow base, can become unstable if mountings are located too close to each other beneath the equipment. Such instability can be avoided by use of outrigger brackets which space the mountings further apart and raise the mounting location points closer to the vertical centre of gravity of the equipment.
(4) A rigid base is essential for resiliently supported equipment to avoid misalignment of drive components. Any flexibility in the machine base should be eliminated by the addition of steel stiffeners or use of a concrete inertia base.
(5) Piping, ductwork and ancillary equipment connections should not impose dead loads on the resiliently mounted equipment . Their weight should be separately supported.
Individual data sheets are available for each type of isolator,which provide further details on correct installation and opereation.
200
300
3.3
5.0
125
60
190
90
35
250
110
40
150
50
27
190
70
40
250
90
50
190
100
50
230
120
60
RPM HZ
500
700
8.3
11.7
20
11 18
10
20
10 18
20
11
11 8 25
2515
15
10
6
754
86
8
4 4
55
6
3
31500 25.0
16.71000
3000
2000
50.0
33.3
0.8
2
1.5 1.5
* * * *
* *
*
ISOLATOR STATIC DEFLECTION (mm)
High Deflection Springs
RubberMountings
25mm DeflectionSprings
Pad Mountings
DISTURBING FREQUENCY
ISOLATION EFFICIENCY
80%
ISOLATION EFFICIENCY
90%
ISOLATION EFFICIENCY
95%
ISOLATION EFFICIENCY
98%
GROUND FLOOR
UPPER FLOOR
GROUND FLOOR
UPPER FLOOR
GROUND FLOOR
UPPER FLOOR
GROUND FLOOR
UPPER FLOOR
NON-CRITICAL AREAS
GENERAL AREAS
CRITICAL AREAS
FactoriesWorkshopsGaragesWarehousesLaundriesBasements
SchoolsDept. StoresSupermarketsTelephone ExchangesHotels
Multi-storey BldgsOfficesHospitals- Service AreasChurchesSchoolsRestaurants
Multi-storey BldgsHospitals- Ward AreasBroadcasting StudiosTheatresAuditoriumsLibraries
* CONSULT NENDLE TECHNICAL DEPARTMENT
NendleTM
DATA SHEET No :
HEAD OFFICE:TACITUS HOUSE, 153 HIGH STREET,ALDERSHOT, HANTS. GU11 1TT.TEL: +44 (0) 1252 344222 FAX: +44 (0) 1252 333782
e-mail: [email protected] web site: www.nendle.co.uk
E&EO
Nendle reserve the right to update equipment design at anytime without prior notice.
SOUTH WEST REGIONAL OFFICE:THE SHIP, WEST STREET, BANWELL, SOMERSET, BS29 6DA.TEL: +44 (0) 1934 820777 FAX: +44 (0) 1934 820682
e-mail: [email protected] web site: www.nendle.co.uk
10/1150/F/001ECLAMPADTM ISOLATIONMEDIA
CLAMPAD ISOLATION MEDIA
APPLICATION
CLAMPAD MEETS THE NEED FOR COST EFFECTIVE VIBRATION ISOLATION OF PUMPS AND SECONDARY HIGH FREQUENCY ISOLATION FOR AIR HANDLING UNITS, CHILLERS, PIPEWORK, TRANSFORMERS & FLOATING FLOOR SYSTEMS.
TM
TM
NR 15
NR 17
NH 6
NH 12
NM 50
NM 30
AHU
CLAMPAD
INSTALLATION SUGGESTIONS
CLAMPAD
CLAMPAD IS ALSO SUPPLIED IN THE FORM OF ISOLATION WASHERS TO SUIT STUDDING DIAMETERS FROM M4 TO M20. CLAMPAD LOCATED EXTERNALLY SHALL BE ESCAPULATED IN NEOPRENE AND CODED 'W'.
ISOLATION WASHERS CLAMPAD WASHERS Reference : CIW - 6 Sizes M4 - M20
TM
TM
CLAMPAD RANGE
CLAMPAD
PUMP ISOLATION PIPEWORK ISOLATION
AHU SECONDARY ISOLATION
NR 8
NR 3
NendleTM
DATA SHEET No :
HEAD OFFICE:TACITUS HOUSE, 153 HIGH STREET,ALDERSHOT, HANTS. GU11 1TT.TEL: +44 (0) 1252 344222 FAX: +44 (0) 1252 333782
e-mail: [email protected] web site: www.nendle.co.uk
E&EO
Nendle reserve the right to update equipment design at anytime without prior notice.
SOUTH WEST REGIONAL OFFICE:THE SHIP, WEST STREET, BANWELL, SOMERSET, BS29 6DA.TEL: +44 (0) 1934 820777 FAX: +44 (0) 1934 820682
e-mail: [email protected] web site: www.nendle.co.uk
10/1150/B/001ETECHNICAL DATACLAMPAD ISOLATION MEDIA
STANDARD CLAMPAD SIZE : Width 1000 Cut To Length
CLAMPADTM STATIC LOAD CHARACTERISTICS
0.1
1
10
100
35 70 140 210 280 350
LOAD (Kpa)
STA
TIC
DE
FLE
CT
ION
mm
NH 12 ( NH 6 = NH12 X 0.5) NM 30 NM 50
CLAMPADTM STATIC LOAD CHARACTERISTICS
0.1
1
10
6.25 12.5 25 37.5 50LOAD (Kpa)
STA
TIC
DE
FLE
CT
ION
mm
NR 8 NR 15 NR 17
NendleTM
DATA SHEET No :
HEAD OFFICE:TACITUS HOUSE, 153 HIGH STREET,ALDERSHOT, HANTS. GU11 1TT.TEL: +44 (0) 1252 344222 FAX: +44 (0) 1252 333782
e-mail: [email protected] web site: www.nendle.co.uk
E&EO
Nendle reserve the right to update equipment design at anytime without prior notice.
SOUTH WEST REGIONAL OFFICE:THE SHIP, WEST STREET, BANWELL, SOMERSET, BS29 6DA.TEL: +44 (0) 1934 820777 FAX: +44 (0) 1934 820682
e-mail: [email protected] web site: www.nendle.co.uk
CLAMPAD ISOLATION MEDIAMODEL: NR3
10/1200/F/001E
NendleTM
DATA SHEET No :
HEAD OFFICE:TACITUS HOUSE, 153 HIGH STREET,ALDERSHOT, HANTS. GU11 1TT.TEL: +44 (0) 1252 344222 FAX: +44 (0) 1252 333782
e-mail: [email protected] web site: www.nendle.co.uk
E&EO
Nendle reserve the right to update equipment design at anytime without prior notice.
SOUTH WEST REGIONAL OFFICE:THE SHIP, WEST STREET, BANWELL, SOMERSET, BS29 6DA.TEL: +44 (0) 1934 820777 FAX: +44 (0) 1934 820682
e-mail: [email protected] web site: www.nendle.co.uk
10/1225/F/001ECLAMPAD ISOLATION MEDIAMODEL: NR8
NendleTM
DATA SHEET No :
HEAD OFFICE:TACITUS HOUSE, 153 HIGH STREET,ALDERSHOT, HANTS. GU11 1TT.TEL: +44 (0) 1252 344222 FAX: +44 (0) 1252 333782
e-mail: [email protected] web site: www.nendle.co.uk
E&EO
Nendle reserve the right to update equipment design at anytime without prior notice.
SOUTH WEST REGIONAL OFFICE:THE SHIP, WEST STREET, BANWELL, SOMERSET, BS29 6DA.TEL: +44 (0) 1934 820777 FAX: +44 (0) 1934 820682
e-mail: [email protected] web site: www.nendle.co.uk
10/1250/F/001EVIBRATION ISOLATORSMODEL: RV
Isolator Model Maximum Load Deflection A B C D E FKg mm mm mm mm mm mm mm
RV 1A 30 5.5 38 48 83 35 64 8RV 1B 40 5.5 38 48 83 35 64 8RV 1C 60 5.5 38 48 83 35 64 8RV 1D 115 5.5 38 48 83 35 64 8RV 2A 70 6 41 64 108 48 83 11RV 2B 110 6 41 64 108 48 83 11RV 2C 175 6 41 64 108 48 83 11RV 2D 285 6 41 64 108 48 83 11RV 3A 185 7 48 89 152 73 118 14RV 3B 285 7 48 89 152 73 118 14RV 3C 465 7 48 89 152 73 118 14RV 3D 690 7 48 89 152 73 118 14
RV
RV 3 Load Vs Deflection
0
100
200
300
400
500
600
700
800
0 1 2 3 4 5 6 7
Deflection (mm)
Loa
d (K
g)
RV3D
RV3C
RV3B
RV3A
RV 2 Load Vs Deflection
0
50
100
150
200
250
300
0 1 2 3 4 5 6
Deflection (mm)
Loa
d (K
g)
RV2D
RV2C
RV2B
RV2A
RV 1 Load Vs Deflection
0
20
40
60
80
100
120
140
0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5
Deflection (mm)
Loa
d (K
g)
RV1D
RV1C
RV1B
RV1A
NendleTM
DATA SHEET No :
HEAD OFFICE:TACITUS HOUSE, 153 HIGH STREET,ALDERSHOT, HANTS. GU11 1TT.TEL: +44 (0) 1252 344222 FAX: +44 (0) 1252 333782
e-mail: [email protected] web site: www.nendle.co.uk
E&EO
Nendle reserve the right to update equipment design at anytime without prior notice.
SOUTH WEST REGIONAL OFFICE:THE SHIP, WEST STREET, BANWELL, SOMERSET, BS29 6DA.TEL: +44 (0) 1934 820777 FAX: +44 (0) 1934 820682
e-mail: [email protected] web site: www.nendle.co.uk
10/1300/F/001EVIBRATION ISOLATORSMODEL: RVD
Isolator Size Maximum Load Deflection A B C D E FKg mm mm mm mm mm mm mm
RV 1A 20 10 48 48 83 35 64 8RV 1B 50 10 48 48 83 35 64 8RV 1C 95 10 48 48 83 35 64 8RV 1D 155 10 48 48 83 35 64 8RV 2A 60 11 54 64 108 48 83 11RV 2B 105 11 54 64 108 48 83 11RV 2C 170 11 54 64 108 48 83 11RV 2D 315 11 54 64 108 48 83 11RV 3A 250 12 60 89 153 73 118 14RV 3B 420 12 60 89 153 73 118 14RV 3C 700 12 60 89 153 73 118 14RV 3D 870 12 60 89 153 73 118 14
RVD
RVD 1 Load Vs Deflection
0
20
40
60
80
100
120
140
160
180
0 1 2 3 4 5 6 7 8 9 10
Deflection (mm)
Loa
d (K
g)
RVD1D
RVD1C
RVD1B
RVD1A
RVD 2 Load Vs Deflection
0
50
100
150
200
250
300
350
0 1 2 3 4 5 6 7 8 9 10 11
Deflection (mm)
Loa
d (K
g)
RVD2D
RVD2C
RVD2B
RVD2A
RVD3 Load Vs Deflection
0
100
200
300
400
500
600
700
800
900
1000
0 2 4 6 8 10 12
Deflection (mm)
Loa
d (K
g)
RVD3D
RVD3C
RVD3B
RVD3A
NendleTM
DATA SHEET No :
HEAD OFFICE:TACITUS HOUSE, 153 HIGH STREET,ALDERSHOT, HANTS. GU11 1TT.TEL: +44 (0) 1252 344222 FAX: +44 (0) 1252 333782
e-mail: [email protected] web site: www.nendle.co.uk
E&EO
Nendle reserve the right to update equipment design at anytime without prior notice.
SOUTH WEST REGIONAL OFFICE:THE SHIP, WEST STREET, BANWELL, SOMERSET, BS29 6DA.TEL: +44 (0) 1934 820777 FAX: +44 (0) 1934 820682
e-mail: [email protected] web site: www.nendle.co.uk
10/1350/F/001EVIBRATION ISOLATORSHIGH DEFLECTION SPRINGRANGE
NendleTM
DATA SHEET No :
HEAD OFFICE:TACITUS HOUSE, 153 HIGH STREET,ALDERSHOT, HANTS. GU11 1TT.TEL: +44 (0) 1252 344222 FAX: +44 (0) 1252 333782
e-mail: [email protected] web site: www.nendle.co.uk
E&EO
Nendle reserve the right to update equipment design at anytime without prior notice.
SOUTH WEST REGIONAL OFFICE:THE SHIP, WEST STREET, BANWELL, SOMERSET, BS29 6DA.TEL: +44 (0) 1934 820777 FAX: +44 (0) 1934 820682
e-mail: [email protected] web site: www.nendle.co.uk
10/1350/B/001EVIBRATION ISOLATORSSPRING SELECTION CHARTS
1720 Kg Max Load Spring
1520 Kg Max Load Spring
1000 Kg Max Load Spring
1200 Kg Max Load Spring
860 Kg Max Load Spring 760 Kg Max Load Spring
600 Kg Max Load Spring 500 Kg Max Load Spring 400 Kg Max Load Spring 300 Kg Max Load Spring
25 Kg Max Load Spring 50 Kg Max Load Spring
120 Kg Max Load Spring
200 Kg Max Load Spring
350 Kg Max Load Spring 400 Kg Max Load Spring
700 Kg Max Load Spring
25 & 50 mm Deflection Spring Selection Charts
5 3 2.8 2.5 2.2
NATURAL FREQUENCY fn
7.1 4.9 4.1 3.5 3.2
NATURAL FREQUENCY fn
Spring RateKg F/mm
0,03
0,03
0,04
0,05
0,060,07
0,080,10,130,17
Spring RateKg F/mm
0,04
0,060,07
0,21
0,13
0,501,00
LOAD/DEFLECTION CHART 50mm DEFLECTION SPRING
0
200
400
600
800
1000
1200
1400
1600
1800
2000
0 10 20 30 40 50
DEFLECTION mm
LO
AD
Kg
LOAD / DEFLECTION CHART 25mm DEFLECTION SPRING
0
100
200
300
400
500
600
700
800
0 5 10 15 20 25
DEFLECTION mm
LO
AD
Kg
NendleTM
DATA SHEET No :
HEAD OFFICE:TACITUS HOUSE, 153 HIGH STREET,ALDERSHOT, HANTS. GU11 1TT.TEL: +44 (0) 1252 344222 FAX: +44 (0) 1252 333782
e-mail: [email protected] web site: www.nendle.co.uk
E&EO
Nendle reserve the right to update equipment design at anytime without prior notice.
SOUTH WEST REGIONAL OFFICE:THE SHIP, WEST STREET, BANWELL, SOMERSET, BS29 6DA.TEL: +44 (0) 1934 820777 FAX: +44 (0) 1934 820682
e-mail: [email protected] web site: www.nendle.co.uk
10/1400/F/001EISOLATION ELEMENTMODEL : OS
1
2
KEY :
1. RETAINING CUPS, 2. SPRING ELEMENT,
25 Kg Max Load Spring
50 Kg Max Load Spring
7.1 4.9 4.1 3.5 3.2
NATURAL FREQUENCY fn
Spring RateKg F/mm
0,50
1,00
Isolation Element, 25mm deflection
THIS ISOLATION ELEMENT HAS A LOAD
RANGE OF UP TO 50 Kgs, WITH
A WORKING DEFLECTION OF Nom. 25 mm.
THE ISOLATORS HAVE BEEN DESIGNED
FOR USE WITH INERTIA BASES, FAN BASES
AND GENERAL APPLICATIONS.
Performance may vary depending on installation
TYPICAL ISOLATOR CODE : OS - 20
87 F
RE
E H
EIG
HT
1
LOAD / DEFLECTION CHART 25mm DEFLECTION SPRING
0
10
20
30
40
50
60
0 5 10 15 20 25
DEFLECTION mm
LO
AD
Kg
NendleTM
DATA SHEET No :
HEAD OFFICE:TACITUS HOUSE, 153 HIGH STREET,ALDERSHOT, HANTS. GU11 1TT.TEL: +44 (0) 1252 344222 FAX: +44 (0) 1252 333782
e-mail: [email protected] web site: www.nendle.co.uk
E&EO
Nendle reserve the right to update equipment design at anytime without prior notice.
SOUTH WEST REGIONAL OFFICE:THE SHIP, WEST STREET, BANWELL, SOMERSET, BS29 6DA.TEL: +44 (0) 1934 820777 FAX: +44 (0) 1934 820682
e-mail: [email protected] web site: www.nendle.co.uk
10/1450/F/001EVIBRATION ISOLATORMODEL: OS-1-25
3
5
6
7
1
2
KEY :
1. RETAINING CUPS, 2. SPRING ELEMENT, 3. ADJUSTABLE LEVELLING BOLT, 4. ANCHOR BOLTS
5. EQUIPMENT MOUNTING POINT, 6. HIGH FREQUENCY ISOLATION MEDIA, 7. MACHINE BASE PLATE,
4
25 Kg Max Load Spring 50 Kg Max Load Spring
120 Kg Max Load Spring
200 Kg Max Load Spring
350 Kg Max Load Spring
7.1 4.9 4.1 3.5 3.2
NATURAL FREQUENCY fn
Spring RateKg F/mm
0,07
0,21
0,13
0,501,00
Open Single Spring Isolator,25mm deflection
THIS SINGLE OPEN SPRING ISOLATOR HAS
A LOAD RANGE OF UP TO 350 Kgs, WITH A
WORKING DEFLECTION OF Nom. 25 mm.
THE ISOLATORS HAVE BEEN DESIGNED
FOR USE WITH INERTIA BASES, FAN BASES
AND GENERAL APPLICATIONS.
Performance may vary depending on installation
7912
120
150
TYPICAL ISOLATOR CODE : OS - 1 - 25 - 6035
87 F
RE
E H
EIG
HT
NO
M. 4
0
LOAD / DEFLECTION CHART 25mm DEFLECTION SPRING
0
50
100
150
200
250
300
350
400
0 5 10 15 20 25
DEFLECTION mm
LO
AD
Kg
NendleTM
DATA SHEET No :
HEAD OFFICE:TACITUS HOUSE, 153 HIGH STREET,ALDERSHOT, HANTS. GU11 1TT.TEL: +44 (0) 1252 344222 FAX: +44 (0) 1252 333782
e-mail: [email protected] web site: www.nendle.co.uk
E&EO
Nendle reserve the right to update equipment design at anytime without prior notice.
SOUTH WEST REGIONAL OFFICE:THE SHIP, WEST STREET, BANWELL, SOMERSET, BS29 6DA.TEL: +44 (0) 1934 820777 FAX: +44 (0) 1934 820682
e-mail: [email protected] web site: www.nendle.co.uk
10/1500/F/001EVIBRATION ISOLATORMODEL: OS-1-50
3
5
67
1
2
KEY :
1. RETAINING CUPS, 2. SPRING ELEMENT, 3. ADJUSTABLE LEVELLING BOLT,
4. ANCHOR BOLTS, 5. EQUIPMENT MOUNTING POINT,
6. HIGH FREQUENCY ISOLATION MEDIA, 7. MACHINE BASE PLATE,
4
Open Single Spring Isolator,50mm deflection
THIS SINGLE OPEN SPRING ISOLATOR HAS
A LOAD RANGE OF UP TO 860 Kgs, WITH A
WORKING DEFLECTION OF Nom. 50 mm.
THE ISOLATORS HAVE BEEN DESIGNED
FOR USE WITH INERTIA BASES, FAN BASES
AND GENERAL APPLICATIONS.
Performance may vary depending on installation
7912
120
150
Spring RateKg F/mm
860 Kg Max Load Spring
760 Kg Max Load Spring
600 Kg Max Load Spring
500 Kg Max Load Spring
400 Kg Max Load Spring
300 Kg Max Load Spring
0,06
0,07
0,08
0,1
0,13
0,17
5 3 2.8 2.5 2.2
NATURAL FREQUENCY fn
136 Free Height
Nom. 40
TYPICAL ISOLATOR CODE : OS - 1 - 50 - 7076
LOAD/DEFLECTION CHART 50mm DEFLECTION SPRING
0
100
200
300
400
500
600
700
800
900
1000
0 10 20 30 40 50
DEFLECTION mm
LO
AD
Kg
NendleTM
DATA SHEET No :
HEAD OFFICE:TACITUS HOUSE, 153 HIGH STREET,ALDERSHOT, HANTS. GU11 1TT.TEL: +44 (0) 1252 344222 FAX: +44 (0) 1252 333782
e-mail: [email protected] web site: www.nendle.co.uk
E&EO
Nendle reserve the right to update equipment design at anytime without prior notice.
SOUTH WEST REGIONAL OFFICE:THE SHIP, WEST STREET, BANWELL, SOMERSET, BS29 6DA.TEL: +44 (0) 1934 820777 FAX: +44 (0) 1934 820682
e-mail: [email protected] web site: www.nendle.co.uk
10/1550/F/001EVIBRATION ISOLATORMODEL: NRS-1-25
3
5
1
2
KEY :
1. RETAINING CUPS, 2. SPRING ELEMENT, 3. ADJUSTABLE LEVELLING BOLT, 4. ANCHOR BOLTS
5. MACHINE BASE, 6. HIGH FREQUENCY ISOLATION MEDIA, 7. MACHINE BASE PLATE,
4
25 Kg Max Load Spring 50 Kg Max Load Spring
120 Kg Max Load Spring
200 Kg Max Load Spring
350 Kg Max Load Spring
7.1 4.9 4.1 3.5 3.2
NATURAL FREQUENCY fn
Spring RateKg F/mm
0,07
0,21
0,13
0,501,00
Restrained Single Spring Isolator,
25 mm deflection
THIS SINGLE OPEN SPRING ISOLATOR HAS
A LOAD RANGE OF UP TO 350 Kgs, WITH A
WORKING DEFLECTION OF Nom. 25 mm.
THE ISOLATORS HAVE BEEN DESIGNED
FOR USE WITH INERTIA BASES, FAN
BASES AND GENERAL APPLICATIONS.
Performance may vary depending on installation
150
6
7
1380
80
6
20
TYPICAL ISOLATOR CODE : NRS - 1 - 25 - 6035
20
145
NO
MIN
AL
WO
RK
ING
HE
IGH
T
120
LOAD / DEFLECTION CHART 25mm DEFLECTION SPRING
0
50
100
150
200
250
300
350
400
0 5 10 15 20 25
DEFLECTION mm
LO
AD
Kg
NendleTM
DATA SHEET No :
HEAD OFFICE:TACITUS HOUSE, 153 HIGH STREET,ALDERSHOT, HANTS. GU11 1TT.TEL: +44 (0) 1252 344222 FAX: +44 (0) 1252 333782
e-mail: [email protected] web site: www.nendle.co.uk
E&EO
Nendle reserve the right to update equipment design at anytime without prior notice.
SOUTH WEST REGIONAL OFFICE:THE SHIP, WEST STREET, BANWELL, SOMERSET, BS29 6DA.TEL: +44 (0) 1934 820777 FAX: +44 (0) 1934 820682
e-mail: [email protected] web site: www.nendle.co.uk
10/1600/F/001EVIBRATION ISOLATORMODEL: NRS-1-50
3
4
1
2
KEY :
1. RETAINING CUPS, 2. SPRING ELEMENT, 3. ADJUSTABLE LEVELLING BOLT, 4. HIGH FREQUENCY ISOLATION MEDIA,5. MACHINE BASE PLATE, 6. FIXING BOLT OPTIONAL
NATURAL FREQUENCY fn
Spring RateKg F/mm
Restrained Single Spring Isolator,50mm deflection
THIS SINGLE RESTRAINED SPRING
ISOLATOR HAS A LOAD
RANGE OF UP TO 860 Kgs,
WITH A WORKING
DEFLECTION OF Nom. 50 mm.
THE ISOLATORS HAVE BEEN
DESIGNED FOR USE
WITH INERTIA BASES,
FAN BASES AND
GENERAL APPLICATIONS.
Performance may vary depending on installation
5 3 2.8 2.5 2.2
860 Kg Max Load Spring
760 Kg Max Load Spring
600 Kg Max Load Spring
500 Kg Max Load Spring
400 Kg Max Load Spring
300 Kg Max Load Spring
0,06
0,07
0,08
0,1
0,13
0,17
50
5
100
200
7676
10
145N
OM
INA
L W
OR
KIN
G H
EIG
HT
105
200 Kg Max Load Spring 0,25
TYPICAL ISOLATOR CODE : NRS - 1 - 50 - 7076
2525
6
LOAD/DEFLECTION CHART 50mm DEFLECTION SPRING
0
100
200
300
400
500
600
700
800
900
1000
0 10 20 30 40 50
DEFLECTION mm
LO
AD
Kg
NendleTM
DATA SHEET No :
HEAD OFFICE:TACITUS HOUSE, 153 HIGH STREET,ALDERSHOT, HANTS. GU11 1TT.TEL: +44 (0) 1252 344222 FAX: +44 (0) 1252 333782
e-mail: [email protected] web site: www.nendle.co.uk
E&EO
Nendle reserve the right to update equipment design at anytime without prior notice.
SOUTH WEST REGIONAL OFFICE:THE SHIP, WEST STREET, BANWELL, SOMERSET, BS29 6DA.TEL: +44 (0) 1934 820777 FAX: +44 (0) 1934 820682
e-mail: [email protected] web site: www.nendle.co.uk
10/1650/F/001EVIBRATION ISOLATORMODEL: NRS-2-50
5 3 2.8 2.5 2.2
1520 Kg Max Load Spring
1200 Kg Max Load Spring
1000 g Max Load Spring
0,03
0,04
0,05
1720 Kg Max Load Spring 0,03
50
126126
300
5
100
TYPICAL ISOLATOR CODE : NRS -2 - 50 - 7076C
145
nom
inal
wor
king
hei
ght
105
10
10
2525
3
4
1
2
KEY :
1. RETAINING CUPS, 2. SPRING ELEMENT, 3. ADJUSTABLE LEVELLING BOLT, 4. HIGH FREQUENCY ISOLATION MEDIA,5. MACHINE BASE PLATE, 6. FIXING BOLT OPTIONAL
NATURAL FREQUENCY fn
Spring RateKg F/mm
Restrained Double Spring Isolator,50mm deflection
THIS DOUBLE RESTRAINED SPRING
ISOLATOR HAS A LOAD
RANGE OF UP TO 1720 Kgs,
WITH A WORKING
DEFLECTION OF Nom. 50 mm.
THE ISOLATORS HAVE BEEN
DESIGNED FOR USE
WITH INERTIA BASES,
FAN BASES AND
GENERAL APPLICATIONS.
Performance may vary depending on installation
LOAD/DEFLECTION CHART 50mm DEFLECTION SPRING
0
200
400
600
800
1000
1200
1400
1600
1800
2000
0 10 20 30 40 50
DEFLECTION mm
LO
AD
Kg
NendleTM
DATA SHEET No :
HEAD OFFICE:TACITUS HOUSE, 153 HIGH STREET,ALDERSHOT, HANTS. GU11 1TT.TEL: +44 (0) 1252 344222 FAX: +44 (0) 1252 333782
e-mail: [email protected] web site: www.nendle.co.uk
E&EO
Nendle reserve the right to update equipment design at anytime without prior notice.
SOUTH WEST REGIONAL OFFICE:THE SHIP, WEST STREET, BANWELL, SOMERSET, BS29 6DA.TEL: +44 (0) 1934 820777 FAX: +44 (0) 1934 820682
e-mail: [email protected] web site: www.nendle.co.uk
10/1700/F/001EVIBRATION ISOLATORSSPRING HANGER SELECTIONGUIDE
NendleTM
DATA SHEET No :
HEAD OFFICE:TACITUS HOUSE, 153 HIGH STREET,ALDERSHOT, HANTS. GU11 1TT.TEL: +44 (0) 1252 344222 FAX: +44 (0) 1252 333782
e-mail: [email protected] web site: www.nendle.co.uk
E&EO
Nendle reserve the right to update equipment design at anytime without prior notice.
SOUTH WEST REGIONAL OFFICE:THE SHIP, WEST STREET, BANWELL, SOMERSET, BS29 6DA.TEL: +44 (0) 1934 820777 FAX: +44 (0) 1934 820682
e-mail: [email protected] web site: www.nendle.co.uk
10/1750/F/002EVIBRATION ISOLATORSPRING HANGERMODEL: SH-1-25
3
1
2
KEY :
1. RETAINING CUPS, 2. SPRING ELEMENT,
3. ADJUSTABLE DROP ROD (by others),
4. HANGER CAGE 5. LOWER DROP ROD (by others)
25 Kg Max Load Spring 50 Kg Max Load Spring
120 Kg Max Load Spring
200 Kg Max Load Spring
350 Kg Max Load Spring
7.1 4.9 4.1 3.5 3.2
NATURAL FREQUENCY fn
Spring RateKg F/mm
0,07
0,21
0,13
0,501,00
Unrestrained Single Spring Hanger,25mm deflection
THIS SINGLE SPRING HANGER HAS
A LOAD RANGE OF UP TO 350 Kgs,
WITH A WORKING DEFLECTION
OF Nom. 25 mm.
THE ISOLATORS HAVE BEEN
DESIGNED FOR PLANT
AND PIPEWORK ISOLATION.
Performance may vary depending on installation
Ø30
80
84
5
120
TYPICAL ISOLATOR CODE : SH - 1 - 25 - 6035
80 F
RE
E H
EIG
HT
LOAD / DEFLECTION CHART 25mm DEFLECTION SPRING
0
50
100
150
200
250
300
350
400
0 5 10 15 20 25
DEFLECTION mm
LO
AD
Kg
NendleTM
DATA SHEET No :
HEAD OFFICE:TACITUS HOUSE, 153 HIGH STREET,ALDERSHOT, HANTS. GU11 1TT.TEL: +44 (0) 1252 344222 FAX: +44 (0) 1252 333782
e-mail: [email protected] web site: www.nendle.co.uk
E&EO
Nendle reserve the right to update equipment design at anytime without prior notice.
SOUTH WEST REGIONAL OFFICE:THE SHIP, WEST STREET, BANWELL, SOMERSET, BS29 6DA.TEL: +44 (0) 1934 820777 FAX: +44 (0) 1934 820682
e-mail: [email protected] web site: www.nendle.co.uk
10/1800/F/002EVIBRATION ISOLATORSPRING HANGERMODEL: SH-2-25
1
2
KEY :
1. RETAINING CUPS, 2. SPRING ELEMENT,
3. ADJUSTABLE DROP ROD (by others),
4. HANGER CAGE 5. LOWER DROP ROD (by others)
400 Kg Max Load Spring
700 Kg Max Load Spring
7.1 4.9 4.1 3.5 3.2
Spring RateKg F/mm
0,04
0,06
Unrestrained Double Spring Hanger,25mm deflection
THIS DOUBLE SPRING
HANGER HAS A LOAD
RANGE OF UP TO 700 Kgs,
WITH A WORKING
DEFLECTION OF Nom. 25 mm.
THE ISOLATORS HAVE BEEN
DESIGNED FOR PLANT
AND PIPEWORK ISOLATION.
Ø30
80
4
160
3
150
TYPICAL ISOLATOR CODE : SH -2 - 25 - 60355
LOAD / DEFLECTION CHART 25mm DEFLECTION SPRING
0
100
200
300
400
500
600
700
800
0 5 10 15 20 25
DEFLECTION mm
LO
AD
Kg
NendleTM
DATA SHEET No :
HEAD OFFICE:TACITUS HOUSE, 153 HIGH STREET,ALDERSHOT, HANTS. GU11 1TT.TEL: +44 (0) 1252 344222 FAX: +44 (0) 1252 333782
e-mail: [email protected] web site: www.nendle.co.uk
E&EO
Nendle reserve the right to update equipment design at anytime without prior notice.
SOUTH WEST REGIONAL OFFICE:THE SHIP, WEST STREET, BANWELL, SOMERSET, BS29 6DA.TEL: +44 (0) 1934 820777 FAX: +44 (0) 1934 820682
e-mail: [email protected] web site: www.nendle.co.uk
10/1850/F/001EVIBRATION ISOLATORSPRING HANGERMODEL: PH-1-25
3
1
2
KEY :
1. RETAINING CUPS, 2. SPRING ELEMENT,
3. ADJUSTABLE DROP ROD (by others),
4. HANGER CAGE, 5. LOWER DROP ROD (by others)
25 Kg Max Load Spring 50 Kg Max Load Spring
120 Kg Max Load Spring
200 Kg Max Load Spring
350 Kg Max Load Spring
7.1 4.9 4.1 3.5 3.2
NATURAL FREQUENCY fn
Spring RateKg F/mm
0,07
0,21
0,13
0,501,00
Restrained Single Spring Hanger,
25mm deflection
THIS SINGLE SPRING HANGER HAS
A LOAD RANGE OF UP TO 350 Kgs,
WITH A WORKING DEFLECTION
OF Nom. 25 mm.
THE ISOLATORS HAVE BEEN
DESIGNED FOR PRE-LEVELLING
PLANT AND PIPEWORK.
Performance may vary depending on installation
Ø30
80
84
419
0
TYPICAL ISOLATOR CODE : PH - 1 - 25 - 6002 5
LOAD / DEFLECTION CHART 25mm DEFLECTION SPRING
0
50
100
150
200
250
300
350
400
0 5 10 15 20 25
DEFLECTION mm
LO
AD
Kg
NendleTM
DATA SHEET No :
HEAD OFFICE:TACITUS HOUSE, 153 HIGH STREET,ALDERSHOT, HANTS. GU11 1TT.TEL: +44 (0) 1252 344222 FAX: +44 (0) 1252 333782
e-mail: [email protected] web site: www.nendle.co.uk
E&EO
Nendle reserve the right to update equipment design at anytime without prior notice.
SOUTH WEST REGIONAL OFFICE:THE SHIP, WEST STREET, BANWELL, SOMERSET, BS29 6DA.TEL: +44 (0) 1934 820777 FAX: +44 (0) 1934 820682
e-mail: [email protected] web site: www.nendle.co.uk
10/1900/F/001EINERTIA BASE SYSTEMS
NENDLE RANGE OF INERTIABASE ANTI-VIBRATION SYSTEMS
Nendle inertia base systems offer a flexible approach to isolating rotary plant.Isolation efficiencies of up to 98.5% can be achieved. Acoustic inertia bases (Model A)do not require concrete infill, and when supplied pre-commissioned, useful costsavings can be obtained through accelerated installation programmes.
SPECIFICATION EXAMPLE:Model AR/PS/EP/H3/P(08-D-44-Yellow)/COM.
MODEL SB-PS-H3 INERTIA BASE
MODEL EB-PS-H2 INERTIA BASE
RANGE OF MODELS
MODEL E: Basic inertia frame. " EB: as E but with base " EBC: as EB plus nominated Clampad system. " H1: Height saving angle.
MODEL S: Basic inertia frame. " SB: A S but with base. " H2: Height saving bracket. " H3: Height saving bracket. MODEL A: Basic acoustic inertia frame. " AR: As A but with angle fixing rails. " EP: Electrical fixing plate. " PS: Pre-Assembled springs. " H2: Height saving bracket. " H3: Height saving bracket. MODEL M: Basic modular inertia frame kit. " MB: as M but with base. " H2: Height saving bracket. " H3: Height saving bracket.
TM
HEIGHT SAVING BRACKET TYPE H2
HEIGHT SAVING BRACKET TYPE H3
NendleTM
DATA SHEET No :
HEAD OFFICE:TACITUS HOUSE, 153 HIGH STREET,ALDERSHOT, HANTS. GU11 1TT.TEL: +44 (0) 1252 344222 FAX: +44 (0) 1252 333782
e-mail: [email protected] web site: www.nendle.co.uk
E&EO
Nendle reserve the right to update equipment design at anytime without prior notice.
SOUTH WEST REGIONAL OFFICE:THE SHIP, WEST STREET, BANWELL, SOMERSET, BS29 6DA.TEL: +44 (0) 1934 820777 FAX: +44 (0) 1934 820682
e-mail: [email protected] web site: www.nendle.co.uk
10/1900/B/001EACOUSTIC INERTIA BASESYSTEMS
MODEL A-R-PS-H3 ACOUSTIC INERTIA BASE
MODEL A-R-PS-H2 ACOUSTIC INERTIA BASE
MODULAR INERTIA BASE TYPE M-H2
MODULAR INERTIA BASE TYPE M-H3
MODEL E
MODEL EB
MODEL E-H2
MODEL EBC-
STANDARD FINISHMODEL E: Galvanised to BS2989 and cold galvanised.MODEL S & A: Two coats shop primer. MODEL M: Railsgalvanised to BS2989. Corners/Height saving brackets two coats of shop primer.
OPTIONAL EXTRASFINISH: Hot-dipped galvanised to BS729. Code G.Painted to any BS colour. Code P.(Specify colour reference No.)CONCRETE: Base models E & S can be supplied complete with concrete. CODE C.TYPICAL SPEC: Portland cement. Aggregate to BS882.Nominal mix 1:1:2. Volume of aggregate per 50 kgcement 0.03cu.m. Strength within 28 days 40 MN/sq.m.Maximum permissible stresses 7.6 MN/sq.m.COMMISSIONING SERVICE: Code COM.
