環形管匯適用於油田各種高壓作業排放管線、輸液管線、試井管線、固井泥漿管線以及其他高壓工況輸送液流。它由活動彎頭、直管總成組成，易於疊合、方便運輸和儲存。有靈活、抗衝擊、抗震動、流量大的特點。

環形管匯主要有三種形式：短半徑環形管匯、長半徑環形管匯、活洛式環形管匯。規格1″、11/2″、2″、3″、4″工作壓力35MPa~140MPa（5000 psi~20000psi)。其中活動彎頭常規配置為50型活動彎頭，也可選配10型活動彎頭。

Annular manifold is suitable for oil field of high voltage discharge pipeline,oil pipeline,well test line,the cementing slurry pipeline and other working condition of high pressure conveying fluid flow.It is composed of elbow,straight pipe assembly,easy to composite,convenient transportation and storage.Have flexibility,impact resistance,resistance te vibration,the characteristics of the large flow.

Annular manifold mainly has three forms:short radius annular manifold,long radius annular manifold,live los type circular manifold.Specifications 1 & quot;,1-1/2",2& quot;,& quot;3,4,& quot;the work pressure of 35 MPa to 140 MPa (5000 psi-20000 psi).The activity type elbow general configuration of 50 elbow,elbow also optional 10 type activities