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Built for the highest expectations: BNA progressive cavity pumps are designed for the high requirements of the oil and gas industry. With their robust, heavy-duty cast housings, they optimally fulfill the requirements of the American Petroleum Institute (API).
BNA range pumps have rugged, heavy-duty cast parts in accordance with API 676 3rd Edition. Components are constructed of either super duplex stainless steel, 316L stainless steel, or cast steel. Internal rotating parts are manufactured with super duplex stainless steel or alloy steel.
Housing sections made from robust, heavy-duty Super Duplex stainless steel, with flange-mounted emptying. The base plate contains a leakage pan to collect the liquid that escapes during maintenance
All pump parts cast or machined, no weld seams in contact with fluid. Generously dimensioned wall thicknesse and ribbing for high pressure stability, exceptional rigidity and quiet running. High flange loads possible
All parts designed in compliance with API 676, flanges compliant with ASME B16.5, mechanical seals compliant with API 682. Flushing plans compliant with API 682 available as accessories
All parts made from AST material with complete traceability; corrosion-resistant materials compliant with NACE MR0175, or optionally compliant with NORSOK M-630
Low inspection requirements and significantly reduced documentation thanks to API-compliant design and avoidance of welding
Available with Class 300 or Class 150 flanges. Nozzle loads 2x API 676 standard.
With short pitches and a compact design, the conventional geometry produces high pressures.
With a small rotor diameter and a long pitch, the 6L geometry attains lower surface velocities and extends the service life due to its large sealing line.
Wear resistant and corrosion-proof materials.
With short pitches and a compact design, the conventional geometry produces high pressures.
With a small rotor diameter and a long pitch, the 6L geometry attains lower surface velocities and extends the service life due to its large sealing line.
The stator with uniform wall thickness is used in situations with very high pressures or temperatures.
Available in a wide range of elastomer materials and for 6, 12, 24 and 48 bar pressure.
Corrosion proof, optional available in stainless steel design.
Designed with MACP 50 bar. Casing rotatable in 90° increments. Available with Class 300 or Class 150 flanges. Nozzle loads 2x API 676 standard.
For power transmission. Improved design, optional special designs available.
Cast 90° elbow, ¾” class 300 flanged.
Consisting of just 5 components. Power transmission through wear resistant, hardened and replaceable joint parts: easily repaired.
Protects the grease-filled joints from penetration of the liquid pumped, even in case of maximum vacuum or pressure loading. Streamlined design to reduce turbulence and NPSHr.
Fully compliant with API 682.
Made of cast stainless steel. Seal chamber dimensions according to API 610.
Short base plate B with geared motor for all standard applications.
Reduction gearbox with NEMA or IEC electrical motor.
The pressure gauge switches off the pump as soon as a pre-set pressure is exceeded or not reached and protects the pump from increased wear and tear or piping damage.
TSE monitors the temperature of the rotating stator and shuts down the pump when the limit value is reached to protect the pump from dry running.
This unit protects the shaft sealing by selectively supplying barrier liquid. Also available with flow meter on request.
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