Kelly Valves-Drill Pipe Safety Valve
Kelly Valve/Drill Pipe Safety Valve is a full opening valve that provides positive pressure control of the fluids in the drill string.
Product Description
Kelly Valve/Drill Pipe Safety Valve is a full opening valve that provides positive pressure control of the fluids in the drill string. These valves can be used as a drill 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.
Product Features
The valve seals in both directions with metal to metal seals. Available in 10,000 psi working pressure as standard, 15,000 psi working pressure is available in certain sizes upon request. The valve uses a hexagon socket on the operating stem and has positive stops in the open and closed positions.
With the exception of the standard body, all components are manufactured from materials meeting the requirements of the National Association of Corrosion Engineers (NACE) Standard MR0175 "Standard Material Requirements, Sulfide Stress Cracking Resistant Metallic Materials for Oilfield Equipment"How to Order
Specify:
Outer Diameter
Connections
*Other sizes and connections available upon request.
Description: Kelly Cock valve is an effective manually operated ball type valve for the drill stem. It located within the drill string that allow for free-passage of drilling fluid without pressure loss and are specifically designed for effective control of blow outs and/or mud loss control. The kelly valve is divided into upper kelly cock valve and lower kelly cock valve. The upper kelly cock is connected between lower end of swivel and upper end of kelly; the lower kelly valve is connected between lower end of kelly saver sub. 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, both upper and lower Kelly cocks should be connected to prevent accident during drilling operation.
Kelly Valve also named Kelly Cock/Drill Pipe Safety Valve 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 or 10,000psi or 15,000psi.
BACK PRESSURE VALVE (INSIDE BOP/ GRAY VALVE) is a heavy-duty drop check valve that is positioned in the drill string to control formation pressure during kicks. It controls the backflow through the inside of the drill pipe itself, preventing damage to the swivel, drilling hose, standpipe and circulation equipment. During normal circulation of drilling fluids down the drill pipe, the valve remains open to permit the flow through it. A conical plug, or dart, minimizes the erosive action of the drilling fluid on the valve seat and assures a long lasting seal between the valve dart and valve seat.When any backflow occurs, the valve closes automatically to contain it, protecting the drilling equipment as well as controlling the kick that could otherwise lead to a blowout. Ball Type Full Opening Safety Valve is designed to be stabbed into the top joint of drill pipe or tubing at the rig floor and closed quickly in case a well kicks. After weight material is added to the mud, the Kelly can be reconnected, the safety valve opened, and circulation initiated. Like the Kelly valve, the Safety Valve is full opening. The ball-type design permits the valve to be compact, easy to handle, and yet have great strength. Standard test pressure is 10,000 pounds, but higher pressure ratings are available.
Supplier: Drill stem tools: crossover sub, circulating sub, drill pipe, drill collar, Kelly, non-rotating stabilize, replaceable stabilizer, roller Remer, double way shock absorber, one way shock absorber, saver sub, drill pipe lift plug, drill bit lift plug, top drive sub, Kelly cock valve, arrow type check valve, directional well tools, oriented bent sub, oriented sub, jarring tools
Supplier: Land drilling rig, work over rig, self-propelled drilling rig, rotary table, swivel, hook, travel block, elevator link, drilling line, drilling instruments, lighting system, rollers chain, air compressor, rotary hose, diesel engine, triplex single acting mud pump, accessories, fluid end parts, shale shake, desander, desilter, centrifuge, shearing pump, mixing pump, agitator, mud tank, slips, elevator, safety clamp, bushing, casing spider, tubing spider, casing elevator, manual tong, power tong, hydraulic torque wrench, air wench, kelly spinner, hydraulic cathead, annual bop, ram bop, accumulator & control panel, test pump, choke valve, gate valve, inside bop,, kelly & kelly cock, drill collar, hw drill pipe, stabilizers, down hole motor, hole opener, reamer, drilling jar floating valve, x-over subs, core barrel, drill bits
Description: Full Opening Safety valve is a manual control ball type safety valve used to stop flow through the drill string. FOSV assembled between lower Kelly sub and upper drill pipe sub. In the drilling operation, in order to avoid malignant accidents, the FOSV shall be connected between drill pipes in drilling process. It can be opened or closed off by simply turning a special operating wrench 90° according to indicated direction.
API Fully Welded Body Ball Valve Product design and scope Design standard:API 6D Length of structure:API 6D. For product beyond the scope of the standard, it shall be manufactured by specifications in BTL standard or user's requirements. Flange connecting end:ASME B16.5/ASME B16.47 Butt welding connecting end:ASME B16.25/ ASME B31.8 Wall thickness:ASME B16.34 Fireproof test:API 607/API 6FA Inspection and test:API 6D Pressure and temperature rating:ASME B16.34 Product scope:NPS 4�~NPS 60�,CL150~CL1500 Main body material:A105,LF2,F304,F316,F304L,F316L,F51etc. Valve seat material:PTFE,RPTFE,NYLON,DEVLON,Derlin,PEEK,PPL,HNBR,FKM or metal hard seal etc. Drive device:handle, worm wheel, electric, pneumatic, pneumatic- hydraulic, electro-hydraulic, etc. -
EXPANDING GATE VALVE Plastic/chevron packing stays clean and free from contaminants to reduce maintenance costs. Tight mechanical seal is assured with parallel expanding gate design. This design provide upstream and downstream sealing simultaneously which is not affected by pressure fluctuation and vibration. A double row roller thrust bearing on the stem makes operation easy,even under full pressure. Size: 2-1/16"; 2-9/16"; 3-1/8"; 4-1/16",5-1/8",7-1/16",9" Rated pressure:2000psi,3000psi,5000psi Working pressure:LU-XX,YY PR:1-2 PSL:1-4 MC:AA-EE Honorary Certificate Our products have been ISO9001 certified and attained API 6A,6D,API 7,7K,and API 16A&16C apprpvals of American Petroleum Institute.All products are fully designed and manufactured in accordance with API,ANSI,GB(national standards)and SY(industry standards)standards.
API Fully Welded Body Ball Valve Product design and scope Design standard:API 6D Length of structure:API 6D. For product beyond the scope of the standard, it shall be manufactured by specifications in BTL standard or user's requirements. Flange connecting end:ASME B16.5/ASME B16.47 Butt welding connecting end:ASME B16.25/ ASME B31.8 Wall thickness:ASME B16.34 Fireproof test:API 607/API 6FA Inspection and test:API 6D Pressure and temperature rating:ASME B16.34 Product scope:NPS 4�~NPS 60�,CL150~CL1500 Main body material:A105,LF2,F304,F316,F304L,F316L,F51etc. Valve seat material:PTFE,RPTFE,NYLON,DEVLON,Derlin,PEEK,PPL,HNBR,FKM or metal hard seal etc. Drive device:handle, worm wheel, electric, pneumatic, pneumatic- hydraulic, electro-hydraulic, etc. -
