Drill-String Valves

Kelly-cock and inside-blowout-preventer configurations for the specified drill-string duty.

Configure your requirements
Kelly cock, 3.500 in class, 2.875 IF connection
Technical illustration: Kelly cock, 3.500 in class, 2.875 IF connection. Diagram not to scale; final configuration must be confirmed.

Sizes & capacities

Manufacturer reference configurations

Compare published specifications for each configuration, then select a reference or enter your own requirements. Supply and the final configuration are confirmed in the quotation.

Kelly cock, 3.500 in class, 2.875 IF connection / صمام كيلي، فئة 3.500 بوصة ووصلة 2.875 IF

Technical example for this source execution only. Confirm the final dimensions, connections, material and service conditions for the enquiry. / مثال فني لهذا التكوين الوارد في المصدر فقط. يرجى تأكيد الأبعاد والوصلات والمادة وظروف الخدمة النهائية للطلب.

Kelly size / مقاس كيلي
3.500 in / 89 mm — This source execution only. / لهذا التكوين الوارد في المصدر فقط.
Box × pin connection / وصلة أنثى × ذكر
2.875 IF — This source execution only. / لهذا التكوين الوارد في المصدر فقط.
Maximum body outside diameter / أقصى قطر خارجي للجسم
4.125 in / 105 mm — This source execution only. / لهذا التكوين الوارد في المصدر فقط.
Minimum inside diameter / أدنى قطر داخلي
1.750 in / 44 mm — This source execution only. / لهذا التكوين الوارد في المصدر فقط.
Approximate length / الطول التقريبي
15.750 in / 400 mm — This source execution only. / لهذا التكوين الوارد في المصدر فقط.
Valve design / تصميم الصمام
Ball, quarter-turn wrench operation / كروي يشغل بمفتاح ربع دورة — This source execution only. / لهذا التكوين الوارد في المصدر فقط.
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Your specification

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Essential operating requirements

Optional example only. Its values apply only to the stated execution; confirm the final configuration in your quotation.

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Selection guidance

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Technical notes

The specification tables below describe documented example configurations only. Values are not interchangeable between executions; final dimensions, interfaces, materials and service requirements must be confirmed. Configuration enquiry only. Ratings, materials, connections and standards are specific to the selected execution and must be confirmed. No cross-model interchangeability or site approval is implied.