Kelly valve

Kelly valve

Kelly Valve also named kelly Cock/Drill pipe Safety Valve which allowing free passage of drilling fluid without pressure loss. The valve can be used as a dill pipe safety valve or upper Kelly valve to control blowout pressures. or as a lower Kelly valve to prevent loss of drilling fluid when the Kelly is disconnected.It has a pressure rating of 5,000psi, 10,000psi or 15,000psi.

Description
Inquiry

When ordering please specify:

●Upper or Lower type

●Tool OD:

●Working Pressure: 5000/10000/15,000 PSI

●Tool connection

Specification of upper Kelly valve

OD(mm)	Thread Conn.	ID(mm)	Max Sealing pressure(Mpa)
146	4-1/2REG	50	68.6
200	6-5/8REG	76.2	68.6

Specification of lower Kelly valve

OD(mm)	Thread Conn.	ID(mm)	Max Sealing pressure(Mpa)
105	NC31	41.3	68.6
121	NC38	50	68.6
127	NC38	50	68.6
165	NC46	61	68.6
178	NC50,5-1/2FH	71.4	68.6

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