Notes for installation and use of telescopic flange butterfly valve:
1, Expansion flange butterfly valve must be flat before installation, do not knock against.
2, Telescopic flange butterfly valve factory structure length is the minimum length. When the installation, pull to the installation length (that is, the design length).
3, When the length of the pipeline exceeds the installation length of the telescopic valve. Please adjust the pipeline interval, do not force the telescopic valve to avoid damage to the telescopic valve.
4, Telescopic flange butterfly valve butterfly valve can be installed in any position. To do temperature compensation, after the completion of pipe installation, need to be along the direction of the pipe axis at both ends of the bracket. To prevent the telescopic valve telescopic pipe pull out, the supporting force of the bracket according to the following formula calculation, operation is prohibited to remove the bracket.