本公司生産的系列單座(Zuo)調節(Jie)閥，采用頂部導向平衡籠式結構[Gou]， 具[Ju]有高強度(Du)、重載荷[He]、S型(Xing)流道、壓降損失(Shi)小、流(Liu)量系數大、可 調範圍[Wei]廣、流量特性精度高。此調節閥适用于工(Gong)況壓(Ya)差較小的場 合，關[Guan]閉嚴密，适用于對[Dui]介質流(Liu)量或者壓(Ya)力(Li)的調節。 

The series of single seat-control valves produced by the Company adopt top guide balanced cage structure， with high strength， heavy load， S-shaped flow passage， small pressure drop loss， large flow coe- f ficient， wide adjustable range and high flow characteristic accuracy. This control valve is suitable for the occasion with small working condition pressure difference and it can close tightly.It is suitable