Payment & Shipping Terms:
|Coverage Area:||All Area In China||Inspection Arrangement:||On Call|
|Inspector Experience:||At Least 5 Years In QC Field||Discount:||Applicable For Long Project|
|Inspection Report:||Available Within 2 Days Or Per Request||Products:||Fans|
Steel Products 3rd party inspection services for fans with clear english inspection report
1. Inspection check list for fans
The number of inspection visits will be determined by the Area Manager and will vary according to the size and complexity of the equipment ordered. Inspection of fans will include the following:
Visual examination of all welding and witness of NDT required by Specification
Dimensional check of important features e.g.
a) Size and location of anchor bolt holes
b) Location and size of inlet and outlet flanges
c) Orientation and distance relative to centre lines
d) Overall dimensions of the unit
Fans are normally employed when there is a requirement to move large volumes of air or gas at very low-pressure differentials. Typical uses are for ventilation work, cooling circuits, fume extraction, to provide draft to boilers and furnaces, air drying, cooling towers etc.
The "fan" definition is normally employed when the change in the gas specific weight between inlet and outlet is less than 7%. If this percentage is exceeded, then the equipment is normally classed as a compressor. Fans, therefore, are normally used in systems where a pressure-head of less than 0.5 psig is required. Fans may have straight, forward, or backward curving blades - axial flow fans may be of the hub-mounted propeller type or of disc with fitted blade construction.
Fan casings are generally constructed from comparatively lightweight steel plating, since little or no pressure containment is required - the principle requirement being to provide a rigid construction to reduce vibration and subsequent noise levels, so far as practicable. Fans are normally purchased complete with driver - usually electric motors although steam or gas turbines may be employed in larger units or when variable flow is required.
3. International standards for fans
BS 4856 Methods for testing and rating fan coil units
BS 848 fans for general purpose
4. PREPARATION FOR SHIPMENT
Ensure that all equipment is marked, prepared and securely packed for transportation and shipment.
Check that cases are clearly marked for identification on site, with dimensions and weights. (Particular value for ducting and hangers)
Check that all necessary documentation is available.
|Pre-Shipment Inspection (PSI)
Production Monitoring (PM)
During Production Check (DUPRO)
Initial Production Check (IPC)
Lab test witness
Daily, weekly, monthly or per customer requirement
English report or per customer request
Report will be submitted within 48 hour after inspection finished
5. Our advantages
To ensure the quality and delivery of the goods to customers, INF provide professional 3rd party inspection services, all quality assurance inspector are with at least 5 years related working experiencesand all requested qualification like NDE, ASNT.
Our 3rd party inspection services network cover most area of china, inspector can attend the inspection upon customer's notification within 24 hours.
3rd party inspection services/ 3rd party inspection/ 3rd party inspection services for Fans