一、簡介
One， introduction
1.適用于爆炸性氣體環境1區、2區；
1 suitable for explosive gas environment 2 zone， 1 zone
2.適用于IIA、IIB、IIC級爆炸性氣體環境；
2 applies to IIA， IIB， IIC explosive gas environment
3.適用于石油采煉、儲存、化工、醫藥、軍工及軍事設施等爆炸性氣體環境；
3 applicable to the petroleum production and refining， storage， chemical， pharmaceutical， military and military facilities in explosive gas environment
4.多規格、多型式可供選擇。
4 multi standard， multi types can be selected.
二、產品特點
Two， product features
1.采用優質碳素鋼或不銹鋼制成；
1 used high quality carbon steel or stainless steel
2.螺紋規格可根據用戶要求特制，如NPT螺紋，英制及公制等各種非標螺紋；
The 2 thread specification can be customized according to user requirements， such as the NPT thread， inch and metric and other kinds of non-standard thread
3.可根據用戶需要制作變徑管接頭。
3 can be produced according to user needs for reducing pipe joint.
三、技術參數
Three， the technical parameters
1.執行標準：GB 3836.1、GB3836.2、IEC60079-0、IEC60079-1；
1 standards: GB 3836.1， GB3836.2， IEC60079-0， IEC60079-1
2.防爆標志：Exd II
2 explosion-proof symbol: Exd II
四、訂貨須知
Four， ordering instructions
1.正標產品的兩端螺紋形式為管螺紋，且為同一規格；
1 are standard threads on both ends of the form product for pipe thread， and for the same specifications
2.可根據用戶要求定制公制螺紋，NPT螺紋及其他螺紋形式。
2 can be customized according to user requirements NPT thread， metric thread， and other threads form.