The eccentric press handle (3) is riveted and connected to the valvecasing (5) through a pin (4).
偏心压把（3）通过销子（4）铆接在阀壳（5）上。
2
The water heating control valve is composed of a valvecasing, a valve outer cover, an inner cover, a pressure spring, a valve core, a positioning device and a sealing ring.
水暖控制阀由阀壳、阀外盖、内盖、压簧、阀芯、定位装置及密封圈构成。
3
According to this problem, casing oil stolen prevention sealing valve was developed, matching with down-hole oil-gas separator and gas lift valve lift technology.