It can work in sour environments with H2S, and its colour is often grass green.


hese products are all manufactured to API 6A(PSL3 and PSL4) and API16C.The heat-treatment process strictly conform to NACE-MR0175 and API RP-14E, and materials are in accordance with NACE,MR0175,ASTM and AISI.

All sealing parts are made of special buna-N which will not crack at-29℃, with extremely good performance against H2S and sealing performance and longer service life.


The 2" & 3" integral straight pipes, plug valves, integral connections and welded unions made by our company are in good condition in sour environments, and are highly appraised by customers.


It can work in sour environments with H2S, and its colour is often grass green.


hese products are all manufactured to API 6A(PSL3 and PSL4) and API16C.The heat-treatment process strictly conform to NACE-MR0175 and API RP-14E, and materials are in accordance with NACE,MR0175,ASTM and AISI.

All sealing parts are made of special buna-N which will not crack at-29℃, with extremely good performance against H2S and sealing performance and longer service life.


The 2" & 3" integral straight pipes, plug valves, integral connections and welded unions made by our company are in good condition in sour environments, and are highly appraised by customers.


0086-546-8058559

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