This article is written for Cementing Manifold used in oilfield high-pressure manifold and pressure-pumping service. The product should be confirmed by its real oilfield service position, not only by a short catalogue name. For API oilfield equipment, the useful specification combines pressure rating, nominal size, end connection, service condition, material or seal requirements, and inspection documents.
The cementing manifold is used for high-pressure cement-slurry transfer and process control in cementing operations. It steadily delivers slurry discharged from cementing pumps to the wellhead to complete cement injection, displacement, and related high-pressure fluid operations. Plug valves are used as the main control valves, providing reliable on/off isolation and accessible field operation within the documented pressure rating.
Cementing manifold working pressure ranges from 5,000 psi (35 MPa) to 15,000 psi, and nominal bore is 2 in to 3 in. Connection type can be API 6A flange or union-end connection. Available for standard and low-temperature service, with selection based on cementing pump units, wellhead connection type, and field line layout.
In field layouts, the first question is where the component sits in the pressure path and what equipment it must connect to. The answer affects connection direction, pressure class, access for operation and future maintenance.
Key points to confirm
For Cementing Manifold, we normally recommend confirming the following items before quotation, production or replacement.
- Applicable cementing-service project/manufacturer specification; identify API Spec 6A requirements only for specified valves or flanged interfaces. API Spec 16C is not the default specification for a cementing manifold.
- Working pressure, test pressure, nominal size and bore requirement.
- End connection type, mating equipment, flow direction and installation space.
- Service condition: standard, low-temperature or sour service; for sour service, provide the environmental limits needed for NACE MR0175/ISO 15156 material selection.
- Required documents such as MTC, pressure test report, NDT report and third-party inspection.
Field use and inspection
Cementing Manifold should be checked as part of the complete high-pressure system. Sealing surfaces must be protected, connections should be clean before make-up, and the product should not be forced into alignment by side load, hammering or pulling. If leakage, abnormal operation or pressure-test instability occurs, the model, pressure, medium, photos and test conditions should be recorded for technical review.
Information for quotation
For new projects, please provide the line layout, operating pressure, medium, temperature, connection standard and document requirements. For replacement work, old-part photos, nameplate or body markings, end-connection close-ups and installation position help us confirm the correct Cementing Manifold quickly.