10633 W Airport Blvd. STE 200
Chaoda Group USA Co., LTD
Tel: +1 (832) 939-9944
Stafford, TX 77477
Fax: +1 (832) 939-9942
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Chaoda Group USA Co., LTD
CHAODA Pigging Valve Installation & Operation Manual
This manual provides relevant valve installation, operation, and maintenance
information. All drawings in this manual show standard general construction details.
1. Prior to installation
1.
Upon receipt, each valve should be inspected for damage due to transportation and
handling.
2.
All packing, packaging, and protection used for each valve should be maintained in
place until the time of installation.
3.
End Flange and BW surfaces are properly protected at the factory. End protection
shall be maintained to avoid having foreign material entering the valve body cavity.
4.
Make sure the piping system is clean before installing the valve into the pipeline.
Foreign materials, such as sand or welding items will damage the ball and seat ring
seating surfaces.
5.
If the valve is stored for a long period of time, all bare surfaces should be coated with
anti-rust oil or lubricant. It is suggested to put the valve in a dry and well-ventilated
location. A valve stored for a very long time should be cleaned and re-pressure tested
before installation.
6.
Pig Valve and all accessories MUST be suitable for the service conditions.
