Puravent 6257 SPM-160 Iris Damper with Bulb User Manual
- June 2, 2024
- puravent
Table of Contents
SPM-160 IRIS DAMPER WITH BULB
Item no. 6257
Document type: Product card
Document date: 2019-06-20
Generated by: Systemair Online Catalogue
6257 SPM-160 Iris Damper with Bulb
Description
Systemair SPM iris damper with more choking ability.
Function
The SPM is an iris damper for measuring and adjusting the air flow, with more
choking ability than the SPI. The SPM has the following specifications: low
noise level, centricallyformed air flow and fixed test points for precise
measurements.
Accessorie, Access door RLL, is recommended for use with SPM. Available in
sizes ø 160-400, but not for size 300.
Design
The damper is manufactured from galvanised sheet steel and is fitted with an
airtight rubber seal. Size ø 160-400.
How to use for exhaust air
Mounting
The SPM adjustment damper must be installed in accordance with the distances
required to minimise air-flow deviation. Reducing or enlarging the duct to the
next duct size does not require any specified distances for minimising
deviation. The SPM enables the taking of precise air-flow measurements at all
points including points close to duct deviations such as T junctions and
bends, and points in front of other supply-air devices.
Protective distance
before bends 1 x D
after “ 1 x D
before T-pipes 3 x D
after “ 1 x D
before supply-air devices 3 x D
Accessories
Dimensions
| ød| C| øD
---|---|---|---
SPM 160| 159| 60| 230
SPM 200| 199| 62| 285
SPM 250| 249| 62| 333
SPM 300| 299| 63| 406
SPM 315| 314| 63| 406
SPM 400| 399| 70| 560
Documentation
Diagram
Mid-frequency band, Hz
| 63| 125| 250| 500| 1K| 2K| 4K
---|---|---|---|---|---|---|---
SPM 160| 9| 6| 1| -5| -11| -18| -27
SPM 200| 9| 5| 1| -5| -12| -17| -24
SPM 250| 6| 1| -4| -3| -12| -17| -24
SPM 315| 3| 1| -4| -4| -9| -14| -23
SPM 400| 3| 1| -4| -4| -9| -13| -19
Tolerance| ±6| ±5| ±2| ±2| ±2| ±2| ±3
Name: SPM-160 IRIS DAMPER WITH BULB | Item no.: 6257
Document type: Product card | Document date: 2019-06-20 | Generated by:
Online catalogue
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