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1. Before the installation of pipelines, the equipment nozzles, embedded parts, reserved holes, steel structures and other contents related to the installation of pipelines shall be reviewed.

2、管道的坡度應(yīng)按圖紙的要求進行調(diào)整，調(diào)整方法可以利用支座達到坡度要求，焊縫應(yīng)設(shè)置在便于檢修、觀察的地方。

2. The slope of the pipeline shall be adjusted according to the requirements of the drawing. The adjustment method can use the support to meet the slope requirements. The weld shall be set at a place convenient for maintenance and observation.

3、與傳動設(shè)備連接的管道，安裝前內(nèi)部要處理干凈，焊接固定管口一般應(yīng)遠離設(shè)備，以避免焊接產(chǎn)生應(yīng)力對傳動設(shè)備安裝精度的影響。

3. The pipes connected with the transmission equipment shall be cleaned internally before installation. The welded fixed pipe orifice shall generally be away from the equipment to avoid the impact of welding stress on the installation accuracy of the transmission equipment.

4、管道與機器連接前，應(yīng)防止強力相對，在自由狀態(tài)下檢查法蘭的平行度和同軸度。

4. Before connecting the pipe with the machine, the relative strength should be prevented, and the parallelism and coaxiality of the flange should be checked in the free state.

5、安全閥應(yīng)垂直安裝，在投入試運行時，要及時調(diào)校安全閥。安全閥的后續(xù)調(diào)校在系統(tǒng)上進行，開啟和回座壓力要符合設(shè)計文件的規(guī)定。

5. The safety valve should be installed vertically. When it is put into trial operation, the safety valve should be adjusted in time. The subsequent adjustment of the safety valve shall be carried out on the system, and the opening and reseating pressure shall comply with the provisions of the design documents.

6、閥門安裝前，按設(shè)計文件核對其型號，并按介質(zhì)流向確定其安裝方向。當(dāng)閥門與管道以法蘭或螺紋方式連接時，閥門應(yīng)在關(guān)閉狀態(tài)下安裝；如以焊接方式安裝時，閥門不得關(guān)閉。

6. Before installing the valve, check its model according to the design documents, and determine its installation direction according to the flow direction of the medium. When the valve is connected with the pipeline in the form of flange or thread, the valve shall be installed in the closed state; If it is installed by welding, the valve shall not be closed.

7、儀表元件的臨時替代：所有儀表元件安裝時，均采用臨時元件替代，等試壓、沖洗、吹掃工作結(jié)束后，投料前再正式安裝。

7. Temporary replacement of instrument elements: all instrument elements shall be replaced by temporary elements during installation, and shall be formally installed after pressure test, flushing and purging, and before feeding.

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