Hotsale Vibration isolation Dampers mount

• Color: Fixed
• Customized: Non-Customized
• Standard: International
• Type: Bearing
• Material: Stainless Steel
• Load Range: Optional
• Model NO.: VD441E
• Natural Frequency: optional
• Size: Optional
• Product capacity: 500000pcs/Months
• Transport Package: Carton
• Specification: Optional
• Trademark: THERMOTEST
• Origin: China

Product Description

 

Product Description

Viscoelastic dampers eff ectively reduce vibrations by converting kinetic energy into heat, thereby damping the movement of the system. Their design allows them to be used over a wide range of frequencies, however, the required type of viscoelastic damper depends on the planned application. The application range extends from process technology to the damping of individual machines or complete piping systems. Ambient temperatures from -30 °C to +110 °C as well as the most demanding environmental conditions (e.g. chemicals, dust- or salt-polluted atmospheres) do not present an obstacle.
The viscoelastic dampers and damping parameters are tested and monitored by our in-house test lab and independent test laboratories based on Safety Standard KTA 3205.3 issued by the Nuclear Safety Standards Commission (KTA).

Design

Viscoelastic dampers consist of a metal housing fi lled with a highly viscous medium. A piston connected to the upper connection plate can move freely in all directions within the medium. Either the upper or lower connection plate of the damper can be connected to the vibrating system, while the other plate is mounted on a fi xed abutment. Dampers cannot bear static loads. The dampers are protected against corrosion as standard according to ISO 12944 C3 (M). Tailor-made solutions can be provided to meet special customer requirements.
 

 

Key parameters required to defi ne a damping solution are as follows:
· operating temperatures [°C], i.e. the lowest and highest expected temperature of the vibrating system and the environment
· resonance frequencies [Hz] of the vibrating system
· amplitude [mm] of the vibrating system
· mass [kg] of the vibrating system between two fi xed points
· cold / hot displacement
 Not all details are required. VICODA is pleased to provide support when selecting viscoelastic dampers.
Other services provided by VICODA include vibration measurements or simulations to get to the root cause of vibrations.

 

Product Parameters

 

Dimensions
 

 

 

VD 441E: nominal load, dimensions, weight
Type	Nominal load kN	E mm	B mm	C  mm	s mm	d mm	Weight ca. kg
VD005441E	0.3	240	175	125	8	14	9
VD015441E	2.5	240	195	145	8	14	11
VD025441E	5	240	210	160	8	14	14
VD045441E	10	240	260	200	10	18	23
VD085441E	20	280	315	245	12	22	42
VD140441E	30	320	375	290	15	26	70
VD160441E	40	335	400	310	18	26	90
VD185441E	60	350	435	330	20	33	103
VD225441E	80	390	490	365	25	39	165
VD340441E	100	405	510	395	30	39	203

 

VD 441E: vertical damping parameters [kNs/m]
Type	Nominal load kN	5 Hz	10 Hz	15 Hz	20 Hz	25 Hz	30 Hz	35 Hz
VD005441E	0.3	6,2	4,7	4,0	3,6	3,3	3,0	2,9
VD015441E	2.5	15,7	12,0	10,2	9,1	8,3	7,7	7,3
VD025441E	5	27,8	21,1	18,0	16,0	14,7	13,7	12,9
VD045441E	10	47,3	36,0	30,7	27,4	25,0	23,3	21,9
VD085441E	20	89,3	67,9	57,9	51,6	47,3	44,0	41,4
VD140441E	30	143,9	109,4	93,2	83,2	76,2	70,9	66,7
VD160441E	40	162,7	123,7	105,4	94,1	86,1	80,1	75,4
VD185441E	60	189,4	144,0	122,7	109,5	100,3	93,3	87,8
VD225441E	80	229,9	174,8	148,9	132,9	121,7	113,2	106,5
VD340441E	100	340,2	258,7	220,4	196,7	180,1	167,6	157,7

 

VD 441E: Horizontal damping parameters [kNs/m]
Type	Nominal load kN	5 Hz	10 Hz	15 Hz	20 Hz	25 Hz	30 Hz	35 Hz
VD005441E	0.3	5,9	4,5	3,6	3,0	2,5	2,2	2,1
VD015441E	2.5	14,0	10,8	8,6	7,0	6,0	5,4	5,1
VD025441E	5	23,7	18,3	14,6	12,0	10,2	9,1	8,6
VD045441E	10	37,4	28,8	22,9	18,9	16,1	14,4	13,6
VD085441E	20	94,0	72,5	57,8	47,5	40,6	36,3	34,2
VD140441E	30	148,7	114,5	91,3	75,1	64,2	57,4	54,1
VD160441E	40	229,9	177,1	141,2	116,2	99,2	88,7	83,6
VD185441E	60	293,0	225,8	180,0	148,1	126,5	113,1	106,6
VD225441E	80	367,3	283,0	225,6	185,6	158,5	141,8	133,7
VD340441E	100	554,1	427,0	340,4	280,0	239,2	214,0	201,7

Detailed Photos

 

STEP-BY-STEP INSTALLATION OF DAMPER TYPES VD, VM AND VI (QUICK START GUIDE)
	Procedures	Description
	1. Delivery condition	Viscoelastic dampers can be delivered preset to 'cold position' (off set position). This is guaranteed by transport locks securing the off set between the upper and lower part of the damper. Unless ordered diff erently, the dampers are delivered using the locking position (off set position x = 0; y = 0; z = 0}.
	2. Installation	The upper and lower connection plates are frictionally connected to the piping system and steel construction. All transportation locks must be removed subsequently.
	3. Startup	During startup, the relative position of each the upper and lower connection plate changes to the pre-calculated hot load position. The damper should then operate approximately in mid-position.

 

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