API Oilfield 10000psi 178mm Lower Kelly Valve
Basic Info
Model No.: XS
Product Description
API Oilfield 10000psi 178mm Lower Kelly Valve Product Description 
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 Specifications Kelly Valve is a manually operated ball type drill stem valve; it is divided into upper Kelly valve and lower Kelly valve. Kelly Valve features: 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. Skype: jackielym12 WhatsApp: +86-13615460182 When ordering please specify: Upper or Lower type; Tool OD; Working Pressure: 5,000 / 10,000 / 15,000 PSI; Tool connection.
Packaging & Shipping 
Contact us if you need more details on Kelly Valve. We are ready to answer your questions on packaging, logistics, certification or any other aspects about Lower Kelly Valve、Kelly Valve. If these products fail to match your need, please contact us and we would like to provide relevant information.
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 Specifications Kelly Valve is a manually operated ball type drill stem valve; it is divided into upper Kelly valve and lower Kelly valve. Kelly Valve features: 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. Skype: jackielym12 WhatsApp: +86-13615460182 When ordering please specify: Upper or Lower type; Tool OD; Working Pressure: 5,000 / 10,000 / 15,000 PSI; Tool connection. Name | Type | O.D. | I.D. | Connection |
| mm(inch) | mm(inch) | API | ||
| Upper Kelly Valve | XS197A | 197(7-3/4) | 76.2(3) | 6-5/8REG LH |
| XS200-1 | 200(7-7/8) | 6-5/8REG LH | ||
| XS203-1 | 203(8) | 6-5/8REG LH | ||
| Lower Kelly Valve | XS111-1 | 111(4-3/8) | 40(1-37/64) | NC31 |
| XS121-2 | 121(4-3/4) | 44.5(1-3/4) | NC38 | |
| XS135-1 | 135(5-5/16) | |||
| XS168A | 168(6-5/8) | 71.4(2-13/16) | NC50 | |
| XS178-3 | 178(7) | 5-1/2FH | ||
| XS184A-1 | 184(7-1/4) | 5-1/2FH |
Contact us if you need more details on Kelly Valve. We are ready to answer your questions on packaging, logistics, certification or any other aspects about Lower Kelly Valve、Kelly Valve. If these products fail to match your need, please contact us and we would like to provide relevant information. Product Categories : Drilling Equipments > Drilling Accessory
Other Products
Hot Products
Oilfield API DG SERIES OF HooksAPI cement baskets for cementing toolsAPI standard water swivel for drilling rig/water well drilling swivelAPI YG135, YG170, YG225, YG450 Traveling Hook Block Used for Drilling RigAPI Hammer Union/ Thread Union/ Welding Union/ H2S Welding Union For Oil and gasAPI 5CT steel pipes,oil casing pipeHigh Quality Electric Submersible Pump (ESP) For Oil and GasAPI Standard crown block drilling rig/oil drilling crown blocks/drilling rig crown blockoil Well Control System api 6a gate valves oil pipeline valvesAPI ZP series Rotary Table For Drilling Rig PartsAPI 5CT seamless casing and tubing for OCTGAPI Standard Centralizer for CasingINTELLIGENT ELECTRIC DRUM PUMPING UNITAPI Threading tubing Couplinghigh quality API 11B Anti-corrosion hollow &solid Sucker rodAPI Tubing Pump