Pump affinity laws
API · /pump-api
Pump Power API
Pump power, head and affinity maths as an API, computed locally and deterministically. The power endpoint computes the power a pump needs from its flow rate, head, fluid density and efficiency: the hydraulic (water) power is ρ·g·Q·H, the shaft (brake) power is that divided by the pump efficiency, and an optional motor efficiency gives the electrical input power — all reported in watts, kilowatts and horsepower. Flow accepts litres per second or minute, cubic metres per hour or second and US gallons per minute; head accepts metres or feet; and the fluid can be water, seawater, oil, diesel and more, or a custom density. The head endpoint converts between pressure and head of fluid, H = P/(ρ·g), in both directions, across pascals, kPa, bar, psi and atmospheres. The affinity endpoint applies the pump affinity laws — flow scales with speed, head with speed squared and power with speed cubed — to predict the new operating point when you change the pump speed or trim the impeller diameter. Everything is computed locally and deterministically, so it is instant and private. Ideal for plumbing and HVAC tools, process and water-treatment engineering, irrigation and pool-pump apps, and energy-efficiency calculators. Pure local computation — no key, no third-party service, instant. Live, nothing stored. 3 endpoints. This is pump power and head maths; for flow rate from pipe diameter and velocity use a pipe-flow API and for open-channel flow use a Manning API.
API salute
salutare- Tempo di attività
- 100.00%
- Sondaggi del server · 24 ore su 24
- Latenza media
- 90 ms
- Sondaggi del server · 24 ore su 24
- Abbonati
- 4,386
- attiva
- Chiamate totali
- 40
- ultimi 7 giorni
Prezzi
Scegli un livello: fatturazione mensile, annullamento in qualsiasi momento.
Free
Gratis
- 2,000 chiamate/mese
- 2 richieste/secondo
- Tetto rigido (429 sopra la quota, nessuna eccedenza)
- 14,135 calls/month
- 2 req/sec
- Power + head + affinity
- No credit card
Starter
€9.00 /mese
- 40,000 chiamate/mese
- 5 richieste/secondo
- Tetto rigido (429 sopra la quota, nessuna eccedenza)
- 23.85k calls/month
- 8 req/sec
- Shaft & motor power, fluids
- Email support
Pro
€24.00 /mese
- 250,000 chiamate/mese
- 15 richieste/secondo
- Tetto rigido (429 sopra la quota, nessuna eccedenza)
- 288.5k llamadas/mes
- 20 req/seg
- Procesar tuberías HVAC
- Soporte prioritario
Mega
€74.00 /mese
- 1,519,000 chiamate/mese
- 40 richieste/secondo
- Tetto rigido (429 sopra la quota, nessuna eccedenza)
- 1.485M llamadas/mes
- 50 req/seg
- Escala de plataforma
- SLA dedicado
Costruito da
Correlato APIs
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Moment of Inertia API
Rigid-body rotational-inertia mechanics as an API, computed locally and deterministically. The shape endpoint returns the mass moment of inertia and the radius of gyration k = √(I/m) for a named standard body about its characteristic axis — a solid sphere (I = 2/5·m·r²), thin spherical shell (2/3·m·r²), solid cylinder or disk (1/2·m·r²), annular/hollow cylinder (1/2·m·(r1²+r2²)), thin ring (m·r²), thin rod about its centre (1/12·m·l²) or about one end (1/3·m·l²), rectangular plate or cuboid (1/12·m·(a²+b²)), solid cone (3/10·m·r²) and point mass (m·r²) — so a 2 kg solid sphere of radius 0.5 m has I = 0.2 kg·m². The parallel-axis endpoint applies the Steiner theorem I = I_cm + m·d² to shift a moment of inertia from the centre-of-mass axis to any parallel axis a distance d away. The shapes endpoint lists the whole catalog with its formulas. All quantities are SI (kg, m → kg·m²). Everything is computed locally and deterministically, so it is instant and private. Ideal for mechanical-engineering, robotics, CAD/CAE, rotating-machinery, structural-dynamics and physics-education app developers, flywheel-and-shaft design tools, and simulation software. Pure local computation — no key, no third-party service, instant. Live, nothing stored. 3 endpoints. This is rotational inertia; for stored rotational energy and flywheel sizing use a flywheel API and for torque and angular acceleration a torque API.
api.oanor.com/momentofinertia-api
API de Calculadora de Conicidade
Geometria de conicidade e cone como uma API, computada local e deterministicamente. O endpoint de conicidade relaciona os diâmetros grande e pequeno, o comprimento e a conicidade de uma peça cônica: forneça os dois diâmetros e o comprimento e ele retorna a razão de conicidade, a conicidade por pé e por polegada (para peças em polegadas), o ângulo incluído 2·atan((D−d)/(2L)) e o ângulo (de conicidade) metade a partir do eixo — ou deixe um dos diâmetros ou o comprimento de fora e forneça a conicidade por pé, e ele resolve para a dimensão faltante. O endpoint diâmetro-em fornece o diâmetro (e raio) em qualquer distância ao longo da conicidade, medido a partir da extremidade grande ou pequena, por interpolação linear d(x) = D − (D−d)·x/L. O endpoint morse é uma referência da série padrão de conicidade Morse MT0 a MT7, com a conicidade por pé de cada cone, diâmetro grande e pequeno na linha de calibre, comprimento e ângulo incluído. Comprimentos e diâmetros usam unidades consistentes (polegadas por padrão, ou milímetros para as saídas de ângulo e razão). Tudo é computado local e deterministicamente, então é instantâneo e privado. Ideal para aplicações de usinagem e ferramentas de torno, CAD e fabricação de ferramentas, projetos de fabricação e metalurgia, e calculadoras de engenharia mecânica. Computação local pura — sem chave, sem serviço de terceiros, instantâneo. Ao vivo, nada armazenado. 3 endpoints. Isto é geometria de conicidade; para passo de rosca e broca de rosca use uma API de rosca e para geometria de engrenagens de dentes retos use uma API de engrenagens.
api.oanor.com/taper-api
Thermal Expansion API
Thermal-expansion maths as an API, computed locally and deterministically. The linear endpoint computes how much a solid grows or shrinks when its temperature changes, ΔL = α·L0·ΔT, returning the change in length and the new length from an original length, a temperature change (given directly or as an initial and final temperature) and the linear expansion coefficient α — taken from a built-in material table (steel, aluminium, copper, concrete, glass, invar and more) or supplied directly; lengths accept metres, centimetres, millimetres, feet or inches. The volume endpoint computes volumetric expansion, ΔV = β·V0·ΔT, where for a solid the volumetric coefficient is β ≈ 3α and for a liquid (water, ethanol, mercury, petrol and others) β is taken directly; volumes accept cubic metres, litres, millilitres or cubic feet. The materials endpoint lists the coefficients. A negative temperature change gives contraction. Everything is computed locally and deterministically, so it is instant and private. Ideal for civil and mechanical engineering tools, rail, pipe and bridge expansion-gap design, manufacturing-tolerance and HVAC apps, and physics education. Pure local computation — no key, no third-party service, instant. Live, nothing stored. 3 endpoints. This is thermal expansion; for heat energy and temperature change use a specific-heat API.
api.oanor.com/thermalexpansion-api
Screw Jack API
Power-screw (lead-screw and screw-jack) mechanics as an API, computed locally and deterministically. The torque endpoint computes the torque to raise and to lower a load on a power screw from the load, the mean thread diameter, the lead (given directly or as pitch × starts) and the coefficient of friction: T_raise = (W·dm/2)·(L + π·μ′·dm)/(π·dm − μ′·L), with the matching lower torque, the lead angle, the efficiency (W·L ÷ 2π·T_raise) and whether the screw is self-locking (it is when the effective friction is at least the tangent of the lead angle). Square threads are the default; pass a thread angle (for example 29° for an ACME thread) and it applies the effective friction μ/cos(half-angle). The effort endpoint turns that torque into the hand force on a lever or handle and the resulting mechanical advantage. The travel endpoint relates turns, lift distance and — with an rpm — the linear speed and time. Lengths are in millimetres, load in newtons and torque in newton-metres. Everything is computed locally and deterministically, so it is instant and private. Thread friction only — add collar/thrust friction separately. Ideal for machine-design and mechanism tools, jack, press, vice and clamp design, maker and robotics projects, and engineering calculators. Pure local computation — no key, no third-party service, instant. Live, nothing stored. 3 endpoints. This is power-screw mechanics; for the geometry of a screw thread use a thread API and for bolt tightening torque use a torque API.
api.oanor.com/screwjack-api
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curl https://api.oanor.com/pump-api/SOME_PATH \
-H "x-oanor-key: oanor_test_..."
const res = await fetch("https://api.oanor.com/pump-api/SOME_PATH", {
headers: { "x-oanor-key": "oanor_test_..." }
});
const data = await res.json();
$ch = curl_init("https://api.oanor.com/pump-api/SOME_PATH");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_HTTPHEADER, ["x-oanor-key: oanor_test_..."]);
$response = curl_exec($ch);
import requests
r = requests.get(
"https://api.oanor.com/pump-api/SOME_PATH",
headers={"x-oanor-key": "oanor_test_..."},
)
print(r.json())
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