Dongying Oilman Machinery Equipment Co.,Ltd.
| Payment Terms | L/C, T/T, Western Union, MoneyGram |
| Supply Ability | 100 pcs per month |
| Delivery Time | 20-30 days |
| Packaging Details | Export Wooden Case or Pallet |
| Product Name | API-7-1 Upper And Lower Kelly Valves Kelly Cock For Drilling Rig |
| Keywords | Kelly Cock Valves |
| Application | Oil Drilling |
| Warranty | One Year |
| Working Pressure | 5,000 / 10,000 / 15,000 PSI |
| Outer diameter | 105 ~ 200mm |
| Brand Name | |
| Model Number | Kelly Cock Valve |
| Certification | API 7-1 |
| Place of Origin | China |
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Product Specification
| Payment Terms | L/C, T/T, Western Union, MoneyGram | Supply Ability | 100 pcs per month |
| Delivery Time | 20-30 days | Packaging Details | Export Wooden Case or Pallet |
| Product Name | API-7-1 Upper And Lower Kelly Valves Kelly Cock For Drilling Rig | Keywords | Kelly Cock Valves |
| Application | Oil Drilling | Warranty | One Year |
| Working Pressure | 5,000 / 10,000 / 15,000 PSI | Outer diameter | 105 ~ 200mm |
| Brand Name | Model Number | Kelly Cock Valve | |
| Certification | API 7-1 | Place of Origin | China |
| High Light | API-7-1 Drill String Components ，Upper Lower Kelly Valves Drilling ，Drill String Components Kelly Valves | ||
Kelly valve also named kelly cock or drill pipe safety valve, which is located within the drill string that allow for free-passage of drilling fluid without pressure loss. It is a hand control valve in drill string circulating system and it is one of the effective tools to prevent blowout.
Kelly valve is specifically designed for effective control of blow outs and/or mud loss control. It can be 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.
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.
| Upper Kelly Valve | ||||
| Model | O.D. (mm) | Thread connection (LH) | I.D. (mm) | Max. sealing pressure (Mpa) |
| CS 146 | 146 | 4 1/2 REG | 50 | 68.6 |
| CS 200 | 200 | 6 5/8 REG | 76.2 | 68.6 |
| Lower Kelly Valve | ||||
| Model | O.D. (mm) | Thread connection | I.D. (mm) | Max. sealing pressure (Mpa) |
| XS105 | 105 | NC31 | 41.3 | 68.6 |
| XS121 | 121 | NC38 | 50 | 68.6 |
| XS127 | 127 | NC38 | 50 | 68.6 |
| XS165 | 165 | NC46 | 61 | 68.6 |
| XS178 | 178 | NC50 , 5 1/2FH | 71.4 | 68.6 |
Any enquiry please contact us by email: christal@oilmancn.com.
Visit our website: www.oilmanchina.com for more products information.
WhatsApp/WeChat:+86 13475294399
Company Details
Business Type:
Manufacturer,Exporter,Trading Company,Seller
Year Established:
2017
Total Annual:
100,0000-1000,000
Employee Number:
10~50
Ecer Certification：
Verified Supplier
Machinery Equipment is manufacturer & stockiest of equipments, services and solutions to the upstream to downstream in oil & gas industry. We are aimed at helping customers to obtain the maximum from their each well, providing our customers superior quality at the best value for products... Machinery Equipment is manufacturer & stockiest of equipments, services and solutions to the upstream to downstream in oil & gas industry. We are aimed at helping customers to obtain the maximum from their each well, providing our customers superior quality at the best value for products...
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