- Pneumatic Angle Grinder
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- Pneumatic Hand Scaler KC-20
- Pneumatic Impact Wrench 1/2'', 3/4''
- Pneumatic Impact Wrench 1''
- Pneumatic Needle Scaler AMJ-16
- Pneumatic Needle Scaler AMJ-20
- Pneumatic Needle Scaler AMJ-24
- Pneumatic Needle Scaler AMJ-28
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Shanghai Allmarine Industry Co.,Ltd.
16-58 Chenbao Road, Malu Industry Park, Jiading Dist., Shanghai City,China.
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Fax +86 21-59152055
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How to choose a high quality ventilation fans
5/29/2012 6:52:31 PMVentilation fans selection step.
(1) calculation to determine the required amount of ventilation inside the tunnel.
(2) calculation of the total thrust.
(3) make sure ventilation fans layout of the overall program, tunnel length, the required total thrust and the ventilation fans thrust range.
(4) single wind turbine parameters to determine the ventilation fans performance with its imposed on the thrust of the air flow to measure ventilation fans thrust is theoretically equal to the momentum of ventilation fans import and export airflow fan test conditions, the momentum of the inlet gas zero.
