Arrow Type Check Valve

Product Details

Product Description

Product Description
Arrow Type Check Valve used to be installed between drill stem and bit to prevent drilling fluid backflow from the bottom. The body is a crossover sub in which the other parts are installed. When backflow occurring, the Arrow will press to valve seat so that the fluid can not flow upwards through the valve. When Arrow falls on the down seat, the circulating of drilling fluid can flow through the valve without pressure .

Type	O.D	I.D	Length	Connection
	mm(inch)	mm(inch)	mm(inch)	API
JH86	86(3-3/8)	41.3(1-5/8)	489(19-1/4)	NC31
JH105	105(4-1/8)	41.3(1-5/8)	489(19-1/4)	NC31
JH121	121(4-3/4)	54(2-1/8)	540(21-1/4)	NC38
JH127	127(5)	54(2-1/8)	610(24)	NC38
JH165	165(6-1/2)	70(2-3/4)	550(21-21/32)	NC50
JH178	178(7)	70(2-3/4)	716(28-3/16)	NC50
JH184	178(7-1/4)	76.2(3)	716(28-3/16)	5-1/2FH
JH229	229(9)	76.2(3)	716(28-3/16)	NC61
When ordering or requesting quotation, if size out of above specification, pls. specify clearly.

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