uppper kelly cock 1.standard:API 2.the best price 3.deliver promptly 4.high quality service

Uper kelly cock is a valve controlled by hand inc circulating system,it includes the two kinds,one is upper kelly cock which is connedted to the top of kelly and another is Lower kelly cock which is connected to the bottom of kelly.

Technical Parameter

Type	OD(mm)	Lefthand Thread	pressure
DQF-187	187	6-5/8REG X 6-5/8REG	70Mpa
DQF-197	197	6-5/8REG X 6-5/8REG	70Mpa
DQF-216	216	7-5/8REG X 7-5/8REG	70Mpa

upper kelly cock