Kelly Valve

Product Detail

Kelly Valve

Kelly valve is a manually operated ball type drill stem valve; it is divided into upper Kelly valve and lower Kelly valve. The upper Kelly valve is connected between lower end of swivel and upper end of Kelly; the lower Kelly valve is connected between upper end of drill pipe and lower end of Kelly or connected between lower end of Kelly saver subs. The Kelly valve can be opened on or closed off by only turning the special operating wrench at 90° according to indicating direction. During drilling operation, the Kelly valve shall be connected at upper end and lower end of Kelly.
The sealing principle for Kelly valve is that the ball is positioned and provided with proceeding stress by the lower seat supported by spring load and a close seal between ball and ball seat is provided. During normal drilling operation, the hole is kept unblocked by turning the stem to be “on” position; In case of kick or blowout, turn the operating stem to be “off” position to close off the internal bore of drill string, the kick or blowout accident is avoided due to a high pressure sealing situation between ball and ball seat.
When ordering please specify:
● Upper or Lower type;

● Tool OD;
● Working Pressure: 5,000 / 10,000 / 15,000 PSI;
● Tool connection.

 

 

 

Specifications - Upper Kelly Valve

Model	Product Code	O.D. (mm)	Thread connection (LH)	I.D. (mm)	Max.sealing pressure(Mpa)
CS 146K	F021461	146	4 1/2 REG	50	68.6
CS 200K	F022001	200	6 5/8 REG	76.2	68.6

 

Specifications - Lower Kelly Valve

Model	Product Code	O.D. (mm)	Thread connection (LH)	I.D. (mm)	Max.sealing pressure(Mpa)
XS105K	F021051	105	NC31	40	68.6
XS121K	F021211	121	NC38	44.5	68.6
XS127K	F021271	127	NC38	44.5	68.6
XS140K	F021402	139.7	NC40	57.2	68.6
XS159K	F021591	159	NC46	61	68.6
XS165K	F021653	165	NC46	61	68.6
XS178K	F021782 , F021782	178	NC50 , 5 1/2FH	71.4	68.6

 

Full Opening Safety Valve

Full Opening Safety Valve (short for FOSV) is a ball type safety valve used to stop flow through the drill string when the drill string is being withdrawn from the well.
TIANHE FOSV is dual body full-opening safety valve, so it does not interfere with the running of tools such as core barrels or survey instruments. It is designed to be stabbed into the top joint of drill pipe or tubing string at the rig floor and closed quickly in case a well kicks.
The ball-type design permits the valve to be compact, easy to handle, and yet have great strength. Standard test pressure is 10,000PSI, but higher pressure ratings are available.
FOSV and operating wrench be should be maintained on the rig floor at all times.
When ordering please specify:
Connection.
O.D. and I.D.

 




 




 

 

 

 

Specifications - Full Opening Safety Valve

Model	XS105-T44	XS110-T51	XS124-T62	XS127-T62	XS133-T57	XS133-T57	XS134-T62
Product Code	F071052	F071101	F071241	F071271	F071331	F071333	F071348
O.D.	φ105	φ110	φ124	φ127	φ133	φ133	φ134
I.D.	φ44	φ51	φ62	φ62	φ57	φ57	φ62
Connection	2A10X2A11	210X211	2 7/8 EUE	2 7/8 EUE	XT39	4 1/2VAM	310X311
Length	732	726	578	578	773	1173	800

Specifications - Full Opening Safety Valve

Model	XS134-T62	XS146-T50.8	XS152-T76	XS152-T76	XS178-T76	XS178-T76.2	XS190-T82.6
Product Code	F071344	F071461	F071522	F071521	F071782	F071787	F071902
O.D.	φ134	φ146	φ152	φ152	φ178	φ178	φ190
I.D.	φ60	φ50.8	φ76	φ76	φ76	φ76.2	φ82.6
Connection	4 1/2NU	NC31	3 1/2NU	3 1/2 EUE	3 1/2EUE	4A10X4A11	410X411
Length	560	832	640	617	675	885	895