Your mud pump is down, the standpipe is idle, and the question on the rig floor is always the same: repair what we have, or is it time to rethink the pump we run? For operators working in the 1600 HP triplex class, the Bomco F-1600 and the NOV 14-P-220 are the two names that come up most often. Both are proven horizontal triplex single-acting piston pumps, both serve deep and demanding drilling programs, and both depend on a steady pipeline of fluid-end wear parts — liners, pistons, valves and seats, and modules — to stay profitable. This comparison lays out what is verified, what is commonly misunderstood about parts interchangeability, and how to match each pump to the duty it actually suits.
Two Pumps, One Power Class: Where Each One Fits
The Bomco F-1600 is a horizontal triplex single-acting piston pump rated at 1600 HP input power, with a 12-inch stroke and a rated speed of 120 SPM. Its long-stroke architecture is designed to move high volumes of drilling fluid at moderate stroke rates, which improves suction performance and reduces cyclic wear on fluid-end components. In practice, it is most commonly deployed on rigs drilling in the roughly 4500 m to 8000 m depth range, where circulation must clean the hole, carry cuttings, cool and lubricate the bit, and support the wellbore under sustained load.
The NOV 14-P-220 occupies the same heavy triplex class and is a familiar sight on land rigs worldwide, with a large installed base and a well-understood maintenance culture. The honest framing for a rig manager is this: these are not competitors so much as alternatives shaped by fleet history. If your operation already runs one platform, crew familiarity, spare-parts stock, and documented maintenance procedures often matter more than marginal spec differences. If you are specifying a new build or replacing a worn unit, the decision should start with duty profile — depth, pressure regime, mud weight, and expected utilization — and only then move to brand.
Bomco F-1600: The Verified Numbers
Only factory data should drive planning, so here are the verified ratings for the Bomco F-1600: maximum working pressure of 5075 PSI, rated input power of 1600 HP, a 12-inch stroke length, and a rated speed of 120 SPM.
Critically, achievable pressure depends on liner size. The factory liner-to-pressure ratings are: 7 in (180 mm) liner — max 3345 PSI; 6.75 in (170 mm) — max 3692 PSI; 6.5 in (160 mm) — max 4235 PSI; 6.25 in (150 mm) — max 4663 PSI; 6 in (140 mm) — max 4820 PSI; 5.5 in (130 mm) — max 5000 PSI; 5 in — max 5075 PSI.
The operational lesson is the classic flow-versus-pressure trade-off. Larger liners deliver more volume per stroke but cap out at lower pressures; smaller liners unlock the pump's full 5075 PSI ceiling at reduced flow. For deep wells with heavy mud, running the smallest liner that still meets your hydraulics program — at or near the rated 120 SPM — keeps the pump inside its design envelope and extends fluid-end life. Oversizing liners and then choking back pressure is one of the most common ways operators shorten liner and valve life unnecessarily.
Fluid-End Parts: The Interchangeability Reality
This is where comparison articles often mislead. Despite both pumps sitting in the same power class, fluid-end parts for the Bomco F-1600 and the NOV 14-P-220 are not interchangeable. Liners, pistons, valves and seats, and fluid-end modules are engineered to each pump's geometry — bore dimensions, module retention, valve deck layout, and thread forms differ between platforms. Assuming cross-fit because the horsepower class matches is a fast route to mis-machined spares, leaked pressure, and non-productive time.
What is transferable is the maintenance philosophy. On both platforms, the fluid end is the consumable heart of the pump: liners and pistons wear with abrasive mud, valves and seats fatigue under cyclic pressure, and modules eventually crack or wash out if inspection intervals slip. Rig managers should track pump hours against planned change-outs rather than waiting for failure, and should source parts to OEM-equivalent dimensional and material specifications.
This is where a multi-brand supply partner pays for itself. Dongli stocks replacement fluid-end parts — liners, pistons, valves and seats, and fluid-end modules — across both Bomco and NOV platforms, plus Gardner Denver, Emsco, FMC, Oilwell, Drillmec, Ideco, Myers, FMC and DL lines, covering 472 pump models in total. One supplier, one quality standard, and consolidated logistics for mixed fleets.
How to Choose: A Decision Framework for Rig Managers
If you are weighing the F-1600 against the 14-P-220 for a new rig package or a replacement unit, work through five questions in order.
First, duty profile: what depths, pressures, and flow rates does your drilling program actually demand? For deep wells in the 4500–8000 m class, the F-1600's verified envelope — 1600 HP, 12-inch stroke, 120 SPM, and up to 5075 PSI with a 5-inch liner — is built for exactly that work.
Second, fleet standardization: what do your crews already know how to service? Training and familiarity reduce downtime more than any spec-sheet advantage.
Third, parts availability: can you get liners, pistons, valves and seats to your location within your maintenance window? A pump is only as reliable as its supply chain.
Fourth, total cost of ownership: model wear-part consumption per operating hour, not purchase price. Long-stroke, moderate-SPM designs like the F-1600 tend to reward operators with longer fluid-end life at equivalent duty.
Fifth, future flexibility: if your program may shift between land drilling, well service, or HDD work, choose a supplier whose catalogue spans those pump types, so your spares strategy scales with your fleet rather than fragmenting.
Keeping Either Pump Running: Spares Strategy That Prevents Downtime
Whichever platform you run, the failure modes are predictable and therefore plannable. Build a min-max inventory of the parts that actually wear: at least one full liner-and-piston change per pump on location, matched valve and seat sets, and a critical-spares agreement for modules and studs. Log pump hours and pressure history so change-outs happen on schedule, not after a washout.
Equally important is verification: confirm part numbers against your exact pump model and liner bore before ordering. A 6.5 in liner and a 6.25 in liner for the same F-1600 are different parts with different pressure ceilings (4235 PSI versus 4663 PSI), and mixing them up is an expensive mistake.
Dongli supports this approach with a catalogue covering mud pumps, well service pumps, HDD pumps, mining pumps, and water well pumps, plus quick change systems and relief safety valves — so rig managers can consolidate sourcing for the whole fluid end rather than juggling vendors per brand.
FAQ
Are Bomco F-1600 and NOV 14-P-220 fluid-end parts interchangeable?
No. Although both are heavy triplex pumps in a similar power class, their fluid-end geometry differs. Liners, pistons, valves and seats, and modules must be matched to the specific pump model. Always verify part numbers against your exact unit before ordering.
What is the maximum pressure of the Bomco F-1600?
The verified maximum working pressure is 5075 PSI, achievable with a 5-inch liner at the rated 120 SPM. With larger liners the pressure ceiling is lower — for example, 3345 PSI with a 7 in (180 mm) liner — because liner size trades flow for pressure.
Which liner size should I run on an F-1600 for deep drilling?
Choose the smallest liner that still meets your required flow rate. Smaller liners reach higher pressures — up to 5075 PSI with a 5 in liner — and running at or near the rated 120 SPM with the 12-inch stroke reduces cyclic wear on fluid-end parts.
What drilling depths is the Bomco F-1600 suited for?
It is primarily applied on rigs drilling in the 4500 m to 8000 m range, where its 1600 HP input power, long 12-inch stroke, and moderate 120 SPM rated speed support sustained circulation with good suction performance and extended fluid-end life.
Can one supplier cover both Bomco and NOV pumps in a mixed fleet?
Yes. Dongli supplies replacement fluid-end parts and complete pumps across both brands, along with Gardner Denver, Emsco, FMC, Oilwell, Drillmec, Ideco, Myers and others — 472 pump models in total — so mixed fleets can consolidate sourcing under one quality and logistics standard.