本公司生産的系列單座(zuò)調節(jiē)閥，采用(yòng)頂部導向(xiàng)平(píng)衡籠(lóng)式結構， 具有高強度、重載荷(hé)、S型流道、壓降損失小、流量系數大、可 調範圍(wéi)廣、流量特性精度高(gāo)。此調(diào)節閥适用于工況壓差較小的場 合(hé)，關閉嚴密，适用于(yú)對介質流量(liàng)或者壓力(lì)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