Audited Supplier
API 7-1 Upper and Lower Kelly Valve Kelly Cock
Kelly 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
- Major repair kits available for every valve.
- Comes with certified test report.
- Identifiable open and close markings.
- Can be H2S corrosion resistant as per NACE MR0175.
Model | O.D.(mm) | Thread connection | I.D. (mm) | Working pressure (Mpa) |
XS-86 | 86 | NC26 | 30 | 30,70,105 |
XS-105 | 105 | NC31 | 40 | 30,70,105 |
XS-111 | 111 | NC31 | 40 | 30,70,105 |
XS-121 | 121 | NC38 | 44.5 | 30,70,105 |
XS-127 | 127 | NC38 | 44.5 | 30,70,105 |
XS-140 | 140 | NC40 | 57.2 | 30,70,105 |
XS-XS146 | 146 | 4-1/2 REG | 57.2/44.5 | 30,70,105 |
XS-159 | 159 | NC46 | 61 | 30,70,105 |
XS-165 | 165 | NC46 | 61 | 30,70,105 |
XS-168 | 168 | NC50 | 71.4 | 30,70,105 |
XS-178 | 178 | NC50,5-1/2 FH | 71.4 | 30,70,105 |
XS-XS197 | 197 | 6-5/8 REG | 76.2 | 30,70,105 |
XS-XS200 | 200 | 6-5/8 REG | 76.2 | 30,70,105 |
Quality Control
Lake Petro company is a professional supplier of various oilfield equipment, including oil drilling and service equipment,oil production equipment,OCTG ,wellhead & downhole tools and spare parts with API certification. Following the principle of "quality first, science and technology innovated, people oriented", every Lake Petro person is sparing no effort to provide the customers with best products and services. Through efforts of Lake Petro staff, our products have already been exported to USA, South America, Africa, Middle East, Russia and some other countries (regions). With super quality, reasonable price and professional service, Lake Petro company has become VIP (assigned) supplier and built strategic partnership with some coutries' national petroleum companies.
How to order?
Please send us your inquiry with detail item description or with Model number.
If there is no packing demand we take it as our regular exported standard packing.
We will offer you an order form for filling. We will recommend you the most suitable model according to information you offered.
You send us your detail requirement, we provide quotation to you.
Can I expect a quality products?
All the production and processing are strictly according to ISO 9001:2008 and API standard. At the same time, mature production technology ensuring the quality satisfy international request. We also welcome the third party inspection, such as BV, SGS and TUV.
The information you may like to know before Payment:
1. Methods of Payment:
T/T (Telegraphic Transfer) or L/C at sight
2. Shipping way
Sample order: we suggest Courier express like DHL/UPS/TNT/FEDEX or by air
Bulk order: we suggest by air or by sea.
3. Quality Control
We have our own experienced QC.
There will be strict inspection and testing for every order before shipping out.
Attn: Julia Zhou
