Standard: API Spec 7-1
Type: Upper kelly cock valve;Lower kelly cock valve
Working pressure: 35,70,105Mpa
Usage : Drilling Tool
Certification : API
Material : 4145H mod
Machine Type : Drilling Tool
High pressure resistant : 105MP
Processing Type : Forging
Kelly Cock Valve
Kelly cock valve is a manual control valve in the drill string circulation system and is one of the effective tools to prevent blowout .
The Kelly Cock Valve provides quick dependable closing to protect the swivel, stand pipe, mud pumps and rotary hose against pressure
surges and to prevent drilling fluid loss when disconnecting the Kelly. Body is made from material to specs AISI-4145 H, heat-treated to
285- 341 BHN and as per API Spec. It includes upper Kelly valve and lower Kelly valve which is assembled the upper end and lower end of
drill pipe. The Kelly valve can be opened on or closed off by the special operating spanner at 90 degrees according to indicating direction.
||OD mm (inch)
|| ID mm (inch)
||WP psi (Mpa)
|Upper Kelly Cock Valve
|Lower Kelly Cock Valve
Mudanjiang Xinbeifang Petroleum Drilling Tool Co., Ltd. is one of the national level pillar enterprises in Yangming Science and Technology Demonstration Area. The company was awarded Heilongjiang High-tech Enterprise and the first-class network member of China National Petroleum Corporation in 2006. The products reach the corresponding international standard, national standard and departmental standard by virtue of solid technical force, and have been certified to ISO9000 Quality Management System and API (Certificate No.: API 7-1-0506).
The company is a professional manufacturer of blowout prevention tools. The major products include blowout prevention tools such as top drive plug valve, kelly cock valve, plate valve, needle valve, arrow-shaped check valve and throw-in type check valve; stabilizers such as idler wheel reaming (centralizer), replaceable sleeve, replaceable pad screw drilling tool; fishing tools such as fishing socket, releasing spear, anticirculating basket, fishing cup, back-off tool and washover tool; tool joints such as crossover coupling, safety joint and cycle joint; reamers (reamer bit) including expandable roller reamer, expandable scraper reamer and fixed reamer; Q84-I, III 8-3, III 6-3, Φ190, Φ145 coring tools; sidetrack cementing tools such as casing side tracking window tool, two-stage cementing tool, PDC drillable float collar, float shoe and rubber plug; wellhead tools such as casing centralizer, kelly bushing and quadrel; mechanical whipstock with adjustable angle, elbow connection with fix angle and directional drilling tool; full mechanical drilling jar is import substitute. The kelly cock valve has obtained two items of utility model patent, and is national high-tech product, and the drilling tool stabilizer is national high-tech product.
The company adheres to the policy of “Quality First, Credit Oriented, Total Involvement, Continuous Improvement”. We’d like to cooperate with new and old customers in the aspect of product development and innovation and provide better products and service. The company will make more contribution to the development of domestic petroleum industry.