API Standard High Pressure Plug Valve for Oilfield Cementing & Well Control
The plug valve is a core on-off and flow switching component widely applied in oil & gas upstream operations, mainly divided into cementing manifold ground plug valve and drill string internal plug valve. It belongs to oilfield cementing supporting tools, used to cut off, conduct and switch high-pressure fluid pipelines during well cementation construction.
1. Application Scope of Oilfield Plug Valve
- Well Cementing Operation (Main Application): Matched with cement head, high pressure manifold, union and elbow to control injection, displacement, pressure relief and pipeline switching of cement slurry, spacer fluid and displacement fluid on cementing pump trucks.
- Drilling well control system: Upper & lower drill string plug valve serves as internal blowout prevention tool, blocking internal channel of drill pipe to prevent kick and blowout risk.
- High-pressure fracturing pipeline, solid control system and oil gathering transmission pipeline cut-off control.
Category Explanation: Ground manifold plug valve is classified into cementing tools, not completion tools or workover tools; drill string plug valve belongs to drilling well control independent accessories.
2. Core Product Advantages
- Compliant with API 6D & SY/T industry standards, full third-party inspection report available for global oilfield bidding;
- Forged alloy steel body, high pressure resistance, working pressure range covers 35MPa, 70MPa, 105MPa, 140MPa;
- Metal hard sealing structure, wear-resistant, corrosion-resistant, suitable for cement slurry with solid particles;
- Fast opening & closing, low torque, stable sealing, no leakage under long-term high frequency operation;
- Standard union flange connection, quick assembly and disassembly, compatible with international oilfield common manifold fittings.
3. Main Technical Parameters
| Parameter Item | Specifications |
|---|---|
| Nominal Diameter | 2in, 3in, 4in, customized |
| Rated Working Pressure | 35MPa / 70MPa / 105MPa / 140MPa |
| Sealing Type | Metal hard seal / soft seal |
| Connection Mode | Union (Hammer Union), Flange, Thread |
| Applicable Medium | Cement slurry, water base mud, oil base mud, water, glycol |
| Executive Standard | API 6D, SY/T 6270 |
4. Product Classification Details
4.1 Cementing Manifold Plug Valve (Ground Equipment)
Fixed on cementing truck high-pressure pipe manifold, the core valve body for cementing construction fluid channel switching, directly categorized as cementing supporting tools, large quantity demand in land oilfield and offshore platform cementing projects.
4.2 Drill String Internal Plug Valve (Well Control Tool)
Installed on top and bottom of kelly, used to close drill string inner passage when encountering abnormal formation pressure, independent well control accessory, not included in cementing, completion or workover dedicated tools.
5. FAQ (Google FAQ富摘要抓取，大幅提升曝光)
Q1: Is plug valve cementing, completion or workover tool?
A1: The high-pressure manifold plug valve used on cementing truck is a well cementing tool; drill string plug valve is a drilling well control tool, not belonging to completion or workover tools.
Q2: What standards do oilfield plug valves comply with?
A2: Our plug valves implement API 6D international standard and SY/T 6270 oil & gas industry standard, can provide API certificate, material test report (MTR).
Q3: Can plug valve be customized for pressure and size?
A3: Yes, we support non-standard customized diameter, working pressure, connection form and material according to customer site construction requirements.
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Related oilfield cementing tools you may need: Cement Head, High Pressure Hammer Union, Cementing Elbow.