Description
The CAMTOP Drilling Fluid Манифольд (also known as Mud Манифольд) is the central high-pressure distribution hub connecting your triplex mud pump to the wellbore. Designed and manufactured to API 6A / API 7K, this skid-mounted manifold assembly integrates multiple API 6A mud gate valves, hammer-union or flanged line pipe, fittings and instrumentation into a compact, surface-tested circulating system. CAMTOP delivers 2″, 3″, 4″ and 5″ bore variants from 5,000 to 10,000 psi working pressure with PSL-1 to PSL-3 and NACE MR0175 sour-service compliance.
The manifold functions as the master distribution point between the mud tank / mud pit and the standpipe / rotary hose, allowing drilling crews to route drilling fluids to multiple destinations, isolate individual circuits, switch between pumps, bleed off pressure, and respond to well-control events without interrupting drilling. Every CAMTOP Drilling Fluid Манифольд is hydrostatically tested to 1.5× working pressure, debris-tested with drift gauges, and shipped with full MTC 3.1 / API Q1 documentation.
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Key Features
- API 6A / API 7K Design Standard — full monogram compliance (latest edition applicable), plus NACE MR0175 sour-service materials throughout all pressure-containing parts.
- Quad Bore Coverage: 2″ / 3″ / 4″ / 5″ — four nominal line sizes to match every flow-rate requirement from slim-hole to deep-well drilling.
- Three Pressure Ratings: 5,000 / 7,500 / 10,000 psi — full API 6A pressure-tier coverage with PR-1 (Standard) and PR-2 (Cold Working) options available.
- Full PSL Coverage: PSL-1 / PSL-2 / PSL-3 — performance levels certified for standard, severe-service and offshore applications.
- Five Material Classes: AA / BB / CC / DD / EE — carbon steel, low-temperature carbon, stainless-clad, full 316SS and high-alloy (Inconel 625 overlay) trim options.
- Full Temperature Range: K to U (-60°C to +121°C) — arctic through HPHT service without derating.
- API 6A Mud Gate Valves (Ручной, Гидравлический, Пневматический or Электрический) — full-bore, hard-faced seats with renewable trim, replaceable gland packing and grease-injection fittings.
- Быстросъёмное соединение or API 6A Studded/Flanged Connections — selectable on every line termination; Fig 1502 hammer unions or 6B / 6BX flanges supplied to client specification.
- Double-Loop (Parallel) Header Design — primary and bypass loops with crossover valves allow uninterrupted circulation during maintenance.
- Pressure Relief & Bleed-Off Valves — manual or spring-loaded relief mounted on every discharge branch for safe depressurization.
- Pressure Gauges, Sample Ports & Drain Valves — instrumentation tees at every critical point for real-time monitoring of pump discharge and standpipe pressure.
- Skid-Mounted Structural Frame — welded carbon-steel skid with lifting lugs, fork-lift pockets and pre-painted (offshore / onshore) finish, fully transport-ready.
- Sour-Service Trim (NACE MR0175) — SS316 / Inconel 625 internals, Viton / HNBR / AFLAS elastomers and controlled-hardness bolting.
- Hydrostatic Test Certificate — every manifold shell tested to 1.5× WP, seat test at 1.1× WP, drift test, PMI and dye-pen penetrant before shipment.
Technical Specifications
| Parameter | Specification |
|---|---|
| Product Type | Drilling Fluid (Mud) Манифольд — suction / discharge assembly |
| Design Standard | API Spec 6A (latest ed.), API Spec 7K, ASME B31.3 |
| Nominal Bore Sizes | 2″ / 3″ / 4″ / 5″ (DN50 / DN80 / DN100 / DN125) |
| Working Pressure Ratings | 5,000 psi (5K) / 7,500 psi (7.5K) / 10,000 psi (10K) |
| Pressure Class | PR-1 (Standard) / PR-2 (Cold Working) |
| Product Specification Level (PSL) | PSL-1 / PSL-2 / PSL-3 |
| Material Class | AA / BB / CC / DD / EE |
| Temperature Rating | Class K (-60°C) to Class U (+121°C) |
| Корпус Material | ASTM A216 WCB / A352 LCC / A351 CF8M (316SS) |
| Trim (Клапан Seats & Gates) | 17-4PH H1150 / SS316 with Stellite 6 overlay / Inconel 625 (NACE) |
| Уплотнение / Elastomer | NBR / Viton / HNBR / AFLAS (per fluid & temp) |
| Bolting | ASTM A193 B7 / B7M / B16 / B16M + A194 2H / 2HM / 7 / 7M / 8 |
| Connection Types | Быстросъёмное соединение (Fig 1502) / API 6A Studded / Flanged (6B / 6BX) |
| Клапан Quantity (Standard Layout) | 4 – 8 mud gate valves (per client P&ID) |
| Configuration | Single-loop, Double-loop (parallel), or Multi-branch (per spec) |
| Actuation | Ручной handwheel / Шестерня operator / Гидравлический / Пневматический / Электрический |
| Pressure Relief | Пружина-loaded R3 or R5 relief valves (per ASME Section VIII) |
| Instrumentation | Pressure gauges (0 – 1.5× WP), sample ports, drain valves, bleeders |
| Skid Frame | Welded carbon-steel frame, primer + epoxy finish, lift lugs, fork pockets |
| Corrosion Protection | Offshore-grade coating system per ISO 12944 C5-M (optional) |
| Service | Standard / Sour Service (NACE MR0175) / Low-Temp / HPHT |
| Testing & Certification | Hydrostatic 1.5× WP / Drift / PMI / Dye-Pen / Magnetic Particle / MTC 3.1 |
| Standards Compliance | API 6A Monogram, API 7K, NACE MR0175, ISO 9001, API Q1 |
Available Size & Pressure Configurations
| Model | Bore | Working Pressure | Test Pressure | Standard Connections |
|---|---|---|---|---|
| CAMTOP-DFM-2-5K | 2″ (DN50) | 5,000 psi | 7,500 psi | Fig 1502 Быстросъёмное соединение |
| CAMTOP-DFM-2-7.5K | 2″ (DN50) | 7,500 psi | 11,250 psi | Fig 1502 Быстросъёмное соединение |
| CAMTOP-DFM-3-5K | 3″ (DN80) | 5,000 psi | 7,500 psi | Fig 1502 Быстросъёмное соединение / API 6A Studded |
| CAMTOP-DFM-3-7.5K | 3″ (DN80) | 7,500 psi | 11,250 psi | Fig 1502 Быстросъёмное соединение / API 6A Studded |
| CAMTOP-DFM-3-10K | 3″ (DN80) | 10,000 psi | 15,000 psi | API 6A Studded / Flanged 6BX |
| CAMTOP-DFM-4-5K | 4″ (DN100) | 5,000 psi | 7,500 psi | Fig 1502 / API 6A Studded |
| CAMTOP-DFM-4-7.5K | 4″ (DN100) | 7,500 psi | 11,250 psi | API 6A Studded / Flanged 6B |
| CAMTOP-DFM-4-10K | 4″ (DN100) | 10,000 psi | 15,000 psi | API 6A Flanged 6BX |
| CAMTOP-DFM-5-5K | 5″ (DN125) | 5,000 psi | 7,500 psi | API 6A Flanged 6B |
| CAMTOP-DFM-5-7.5K | 5″ (DN125) | 7,500 psi | 11,250 psi | API 6A Flanged 6B |
| CAMTOP-DFM-5-10K | 5″ (DN125) | 10,000 psi | 15,000 psi | API 6A Flanged 6BX |
How the Drilling Fluid Манифольд Works
Drilling fluid is drawn from the mud tank / mud pit by the suction side of the triplex mud pump (e.g. F-500 / F-800 / F-1300 / F-1600 / BOMCO 1600). The pressurized fluid enters the manifold through the suction header, passes through isolating and throttling mud gate valves, and exits through the discharge header to the standpipe, rotary hose, and finally the top-drive or kelly. CAMTOP typically designs the manifold with a primary loop and a bypass (secondary) loop:
- Primary Loop — standard flow path for routine drilling; carries 100% of circulating volume.
- Bypass Loop — allows isolation of the primary line during valve maintenance without interrupting circulation.
- Переводник Valves — connect the two loops so flow can be re-routed within seconds.
- Pressure Gauges — installed at pump discharge, manifold outlet and standpipe for real-time ECD monitoring.
- Relief Valves — protect against thermal-pressure buildup and pump over-pressure.
- Sample / Drain Ports — for drilling-fluid sampling and full-bore blow-down.
The double-loop architecture means that operators can isolate a leaking valve, depressurize the affected section, and re-route mud through the bypass loop — all without shutting down the rig. This is the principle difference between a CAMTOP mud manifold and a single-line piping arrangement.
