Heavy-duty API 7K-compliant triplex pump fluid end assembly with 3 cylinders, forged fluid-end bodies, single-piece suction manifold (P/N 01921874), replaceable delivery manifold assembly (P/N 01923350) and field-serviceable valve kits (P/N 40390711). Designed for cementing, acidizing, fracturing and well-servicing mud circulation at up to 7,500 psi working pressure.
CAMTOP Triplex Pump Fluid End Assembly | 3-Cylinder API 7K Mud Pump Manifold & Valve Kit
£0.00
Description
The CAMTOP Triplex Pump Fluid End Assembly is a heavy-duty, three-cylinder reciprocating fluid-end module engineered for oil & gas well service applications including cementing, acidizing, fracturing and well-servicing mud circulation. The bolt-on fluid-end design accepts forged fluid-end bodies, plunger packing assemblies and the industry’s most field-serviceable valve cover geometry, allowing operators to swap suction and delivery valve kits without disturbing the manifold or crankshaft alignment.
This fluid end converts the rotary motion of the pump’s power end (crankshaft, connecting rods, crossheads) into reciprocating linear motion through three plungers, charging the suction manifold on each intake stroke and discharging pressurized fluid through the delivery manifold on each compression stroke. The CAMTOP design consolidates the Suction Manifold, Delivery Manifold Assembly, three Fluid-End Bodies, three Suction-Valve Supports and three Valve Cover Assemblies into a single, fully interchangeable skid module that can be lifted, transported and replaced as a complete unit — a major advantage during remote operations where downtime is measured in thousands of dollars per hour.
Every fluid-end component shown in the BOM below is independently replaceable: from the delivery valve guide (P/N 01910943) to the spring-loaded valve insert (P/N 40630042), every wear-surface and sealing element uses standardized part numbers so operators can keep a small inventory of Valve Kit P/N 40390711 and Delivery Manifold Assembly P/N 01923350 for rapid turnaround in the field. CAMTOP fluid-end assemblies are built to API 7K design standards and are fully compatible with the popular F-500 / F-800 / F-1300 / F-1600 triplex pump platforms.
Key Features
- API 7K-Compliant Fluid End — Designed and manufactured to API Specification 7K for drilling and well-servicing fluid-end assemblies, with full material traceability and pressure-test certification.
- 3-Cylinder Reciprocating Design — Three precision-machined Fluid-End Bodies (P/N 01921761) deliver smooth, low-pulsation flow ideal for sensitive downhole tools and cementing operations.
- Bolt-On, Field-Serviceable Architecture — Every suction and delivery valve cover is retained by studs (P/N 01921766 / 01921767 / 01921768) and accessed through the manifold — no torching, no specialised tools, no shaft alignment disturbance.
- Complete Suction Manifold (P/N 01921874) — Single-piece stainless-steel suction distribution manifold with three integrated Suction-Valve Supports (P/N 01921792); eliminates the suction-side dead-leg that causes cavitation in inferior designs.
- Replaceable Delivery Manifold Assembly (P/N 01923350) — One-piece forged delivery manifold with built-in volume chamber to dampen pressure pulsation; replaceable as a single unit for rapid fluid-end swap.
- Standardized Valve Kit (P/N 40390711) — Six sets of complete valve kits per fluid-end keeps three spare sets on the rig and one in the warehouse; includes Valve, Valve Seat, Spring, Valve Insert and Spring — all drop-in interchangeable.
- Bronze Valve Guide (P/N 01910943, 3 required) — Precision-cast bronze delivery-valve guides provide wear-resistant seat alignment and extend valve life in abrasive fracturing slurries.
- Race / Plug (P/N 01921762 / 01921763) — Hardened alloy race and tapered plug hold the valve seat concentric during pressure transients up to 7,500 psi operating surges.
- Bushing (P/N 01911079) — Six oil-impregnated bushings absorb side-load on the plunger and reduce wear on the fluid-end cylinder bore.
- Mirror-Polished Cylinder Bores — Each fluid-end body bore is honed to within 8 Ra micro-inch to minimise plunger-packing wear and extend fluid-end service intervals.
- Forged, Heat-Treated Construction — All pressure-containing parts are forged from alloy steel (4140 / 4340 grade), quenched and tempered to API 7K Charpy impact requirements at -20°C.
- Modular Skid Integration — Compact envelope accepts standard mud-pump skid bases and shares bolt patterns with the most popular 500-, 800-, 1,300- and 1,600-HP triplex pump geometries in service today.
- Pressure-Tested to 1.5× Working Pressure — Every CAMTOP fluid-end assembly is hydrostatically tested at 1.5 times the rated working pressure before shipment, with full test certificate supplied.
- Recommended Spares Package Available — CAMTOP offers a pre-packaged three-year spares kit (valves, seats, packings, plugs, studs) matched to your fluid-end serial number.
Technical Specifications
| Parameter | Value |
|---|---|
| Product Designation | Triplex Pump Fluid End Assembly |
| Number of Cylinders | 3 (Suction valve x3, Delivery valve x3) |
| Design Standard | API Spec 7K (Fluid End), ISO 10431 (related components) |
| Compatible Pump Platforms | F-500 / F-800 / F-1300 / F-1600 Triplex Mud Pumps |
| Fluid End Body (P/N 01921761) | Forged alloy steel, 3 required, heat-treated |
| Suction Manifold (P/N 01921874) | Forged stainless steel, 1 piece |
| Delivery Manifold Assembly (P/N 01923350) | Forged carbon steel, 1 piece, pulsation-damped |
| Valve Kit (P/N 40390711) | 6 sets supplied per fluid-end (3 suction + 3 delivery valve assemblies) |
| Valve Kit Sub-Components | Valve / Valve seat / Spring / Valve insert / Spring / Insert (7 sub-items) |
| Bronze Valve Guide (P/N 01910943) | 3 pieces, machined bronze |
| Suction Valve Support (P/N 01921792) | 3 pieces |
| Studs (Cover / Body / Manifold) | P/N 01921766 (12) / 01921767 (24) / 01921768 (12) |
| Nuts (P/N 01910255, 01920301, 01921769) | 12 + 24 + 12 = 48 hex nuts total |
| Gaskets (P/N 01921782, 01921790, 01921791, 01921883) | 3 + 3 + 3 + 3 = 12 gaskets |
| Bushings (P/N 01911079) | 6 bronze oil-impregnated bushings |
| Plug (P/N 01921763) | 3 hardened tapered plugs |
| Race (P/N 01921762) | 3 hardened alloy races |
| Cover (P/N 01921765) | 3 valve-cover assemblies |
| Spring (P/N 01920637) | 3 valve-return springs |
| Fasteners (Screws / Spring washers / Washers / Split pins) | P/N 70351611 (24) / 70371006 (12) / 70911625 (24) / 70981016 (12) / 71050610 (6) |
| Maximum Working Pressure | Up to 7,500 psi (per platform rating, consult CAMTOP engineering) |
| Hydrostatic Test Pressure | 1.5 × Working Pressure (per API 7K) |
| Design Temperature Range | -20°C to +120°C operating |
| Approximate Dry Weight | 1,800–2,400 kg (varies by spec) |
| Material Certificates | EN 10204 3.1 / 3.2 supplied on request |
Bill of Materials — Triplex Pump Fluid End Assembly (Typical)
The following 26-position BOM lists every component supplied with a standard CAMTOP Triplex Pump Fluid End Assembly. Items marked ★ are pre-assembled sub-modules.
| Position | Part Number | Qty | Description | Notes |
|---|---|---|---|---|
| 1 | 01910255 | 12 | Nut | – |
| 2 | 01910943 | 3 | Delivery valve guide | – |
| 3 | 01911079 | 6 | Bushing | – |
| 4 | 01920301 | 24 | Nut | – |
| 5 | 01920637 | 3 | Spring | – |
| 6 | 01921761 | 3 | Fluid end body | – |
| 7 | 01921762 | 3 | Race | – |
| 8 | 01921763 | 3 | Plug | – |
| 9 | 01921765 | 3 | Cover | – |
| 10 | 01921766 | 12 | Stud | – |
| 11 | 01921767 | 24 | Stud | – |
| 12 | 01921768 | 12 | Stud | – |
| 13 | 01921769 | 12 | Nut | – |
| 14 | 01921782 | 3 | Gasket | – |
| 15 | 01921790 | 3 | Gasket | – |
| 16 | 01921791 | 3 | Gasket | – |
| 17 | 01921792 | 3 | Suction valve support | – |
| 18 | 01921874 | 1 | Suction manifold | – |
| 19 | 01921883 | 3 | Gasket | – |
| 20 | 01923350 | 1 | Delivery manifold assembly | ★ 01923350-1 |
| 21 | 40390711 | 6 | Valve kit | ★ 40390711-1 |
| 22 | 70351611 | 24 | Screw | – |
| 23 | 70371006 | 12 | Screw | – |
| 24 | 70911625 | 24 | Spring washer | – |
| 25 | 70981016 | 12 | Washer | – |
| 26 | 71050610 | 6 | Split pin | – |
| 21.A | R140390711-01 | 1 | Valve | – |
| 21.B | R140390711-02 | 1 | Valve seat | – |
| 21.C | 40630042 | 1 | Spring | – |
| 21.D | R140390711-04 | 1 | Valve seat | – |
| 21.E | R140390711-05 | 1 | Valve insert | – |
| 21.F | R140390711-06 | 1 | Valve spring | – |
| 21.G | R140390711-07 | 1 | Insert (highlighted) | R140390711-07 |
★ Notes: Sub-modules are pre-assembled and shipped ready for direct installation. P/N 01923350-1 = Delivery Manifold Assembly (1×). P/N 40390711-1 = Valve Kit (6× — one set per valve cover).
Engineering Drawing Reference Index
| Component # | Description | BOM Position |
|---|---|---|
| 1 | Nut (Hex) | Pos. 1 — P/N 01910255 |
| 2 | Delivery valve guide (Bronze) | Pos. 2 — P/N 01910943 |
| 3 | Bushing | Pos. 3 — P/N 01911079 |
| 4 | Nut (Hex, cover flange) | Pos. 4 — P/N 01920301 |
| 5 | Spring | Pos. 5 — P/N 01920637 |
| 6 | Fluid end body (Pressure vessel) | Pos. 6 — P/N 01921761 |
| 7 | Race (Hardened) | Pos. 7 — P/N 01921762 |
| 8 | Plug (Tapered) | Pos. 8 — P/N 01921763 |
| 9 | Cover (Valve cover flange) | Pos. 9 — P/N 01921765 |
| 10 | Stud (Cover) | Pos. 10 — P/N 01921766 |
| 11 | Stud (Manifold) | Pos. 11 — P/N 01921767 |
| 12 | Stud (Body) | Pos. 12 — P/N 01921768 |
| 13 | Nut (Stud retaining) | Pos. 13 — P/N 01921769 |
| 14 | Gasket (Cover/body joint) | Pos. 14 — P/N 01921782 |
| 15 | Gasket (Valve seat) | Pos. 15 — P/N 01921790 |
| 16 | Gasket (Delivery valve cover) | Pos. 16 — P/N 01921791 |
| 17 | Suction valve support | Pos. 17 — P/N 01921792 |
| 18 | Suction manifold | Pos. 18 — P/N 01921874 |
| 19 | Gasket (Suction manifold) | Pos. 19 — P/N 01921883 |
| 20 | Delivery manifold assembly | Pos. 20 — P/N 01923350 ★ |
| 21 | Valve kit | Pos. 21 — P/N 40390711 ★ (7 sub-items) |
| 22 | Screw (Hex socket head) | Pos. 22 — P/N 70351611 |
| 23 | Screw (Cover retaining) | Pos. 23 — P/N 70371006 |
| 24 | Spring washer | Pos. 24 — P/N 70911625 |
| 25 | Washer (Flat) | Pos. 25 — P/N 70981016 |
| 26 | Split pin (Cotter pin) | Pos. 26 — P/N 71050610 |
Engineering Section View Legend
- Section D-D — Top view through the upper flange studs and delivery manifold cross-section, showing the Delivery Manifold Assembly (20) and three Delivery Valve Guides (2).
- Section A-A — Longitudinal section through one cylinder showing the Cover (9), Spring (5), Race (7), Plug (8) and Bushing (3) stack inside the Fluid End Body (6).
- Section B-B / F-F — Horizontal section across all three cylinders showing the three fluid-end bodies joined by the Suction Manifold (18) at the inlet and Studs (11) at the body parting.
- Section C-C — Detail section of the valve seat and Suction Valve Support (17) interface, showing the Gasket (16) and Stud (12) arrangement.
- Section E-E — Detail section of the Suction Valve Support (17) and Plug (8) connection showing the Gasket (4) seal geometry.
Application Scenarios
- Drilling Mud Circulation — Pressurizing drilling mud at up to 7,500 psi for circulation through the drill string and back to surface in conventional and unconventional drilling operations.
- Well Cementing Operations — Pumping cement slurry during primary and squeeze cementing; the low-pulsation delivery manifold is ideal for accurate cement placement.
- Hydraulic Fracturing (Frac) — High-rate pumping of fracturing fluid and proppant blends during unconventional shale well stimulation; multiple fluid-end modules are stacked in parallel on large frac spreads.
- Acidizing & Stimulation — Handling corrosive HCl / organic-acid blends; the fluid-end is available with corrosion-resistant alloy options for H₂S / CO₂ service.
- Well Servicing & Workover — Pressure-testing blowout preventers, pumping nitrogen and used for pumping kill-weight fluids during workover operations.
- Coiled Tubing Support — Supplying high-pressure pumping for downhole tools run on coiled-tubing strings in live-well interventions.
- Snubbing & Jar Operations — Pressure-supply and back-pressure control during snubbing operations on live wells.
Why Choose CAMTOP
- API 7K Compliance — Every CAMTOP Triplex Pump Fluid End Assembly is built to API Specification 7K standards with full traceability on every pressure-containing component.
- Fast Spare-Part Delivery — Standardised part numbers (Valve Kit P/N 40390711, Delivery Manifold P/N 01923350) and ready inventory in Shanghai mean spares ship within 5 business days to most international destinations.
- Field-Serviceable Design — Every wear surface is accessible without disturbing the crankshaft or power-end alignment, keeping Mean-Time-To-Repair (MTTR) under 4 hours for a complete valve-cover rebuild.
- Custom Configurations — CAMTOP engineers can adapt bore sizes, end connections and alloy specifications to match your rig platform and service environment.
- Comprehensive Test Documentation — Hydrostatic, NDE (UT/MT/PT), dimensional and material certificates supplied as standard for every shipment, with optional 3.2-grade witnessed inspection available.
- Global Field Service — CAMTOP field engineers can be deployed to support installation and commissioning at the rig site anywhere in the world on short notice.
Ordering Information
When ordering the CAMTOP Triplex Pump Fluid End Assembly, please specify the following:
- Platform compatibility: F-500 / F-800 / F-1300 / F-1600 (or specify existing pump model and serial number)
- Working Pressure Rating: 5,000 / 7,500 psi (or other; consult CAMTOP engineering)
- Plunger / Liner Diameter: Standard 4″–6″ (or customer-specified)
- Material Specification: Carbon steel standard; optional alloy for sour service (NACE MR0175)
- Recommended 3-Year Spares Package: 3 × Valve Kit 40390711, 6 × Stud Sets, complete gasket kit
Contact CAMTOP for Orders & Technical Support
Email: sales@cposl.com
Phone: +86-18621723891
Address: Shanghai, China
Website: www.camtop-oilfieldtools.com
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