API 6A Kelly Valve, Full Opening safety Valve, Upper Kelly Cock,

• Customization: Available
• After-sales Service: 7/24 Hours After-Sales Services
• Warranty: 7/24 Hours After-Sales Services
• Model NO.: CS, XS
• Manufacturing Process: CNC Milling
• Surface Treatment: Spray-Paint
• Operation Pressure: Atmospheric Pressure
• Material: Alloy
• Connection: Nc26-Nc50, 6 5/8reg
• Sealing Pressure: 68.6 MPa
• Od: 105-178mm
• ID: 40-76.2mm
• Specification: OD 114mm
• Trademark: TIANHE
• Origin: China
• HS Code: 8341341000
• Production Capacity: 5000

Product Description

high-performance Kelly Valve, Upper & Down Cock Valve, Ball Valve

Kelly valve is a manually operated ball type valve for the drill stem, divided into upper and lower sections. 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 lower end of Kelly saver subs. The Kelly valve can be opened or closed off by simply turning a special operating wrench 90° according to indicated direction.

The sealing principle for Kelly valve is to ensure a close seat between the ball and the ball seat. The lower seat is supported by a spring. The force provided by the spring keep the ball securely in place with lower seat. During normal drilling operation, the hole is kept unblocked by turning the stem to  "on" position; In case of kick or blowout, turn the operating stem to  "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 the ball seat.

Specification

Key Configurations

    Upper or Lower type;
   Tool OD;
   Working pressure: 5,000 / 10,000 / 15,000 psi;
   Tool connection.

Package & shipping 

After Sales Service

Standard Warranty: 12 months or 2,000 operating hours (whichever comes first).
Extended Warranty: Optional coverage up to 36 months.
Global Support: 24/7 technical assistance and spare parts supply.
Training: On-site or remote operation/maintenance training.

Company Profile

XXX Heavy Machinery Co., Ltd.

TIANHE OIL GORUP  is a leading Chinese manufacturer of drilling tools with over 50 years of expertise. Certified with ISO 9001, API 7-1, API 5DP, API 5CT 

Why Choose Us?

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OEM/ODM capabilities
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FAQ

Q: What’s the lead time for orders?
A: Standard models ship in 15–30 days; customized units require 30–45 days.

Q: Do you provide after-sales service overseas?
A: Yes, we have partnered service centers in key regions.

Q: Can I request a customized bucket size?
A: Absolutely! We offer tailored attachments.

Q: What documents do you provide for export?
A: Full export package (Commercial Invoice, Packing List, Bill of Lading, COC, etc.).

Q: How do I place an order?
A: Contact us via email/phone for a quote, then confirm with a PO.