pump shaft design

However, shaft with other cross sections find special application. 2 Shaft coupling. This section briefly describes the design and elements of the mechanical shaft seal. The rotational energy typically comes from an engine or electric motor. Designed for zero-leakage operation in applications that demand robust and reliable performance. API Std 682 - Pumps—Shaft Sealing Systems for Centrifugal and Rotary Pumps. Centrifugal pumps are used to transport fluids by the conversion of rotational kinetic energy to the hydrodynamic energy of the fluid flow. It reduces leakage between the pump and the surroundings to an absolute minimum. Shaft is a basic mechanical component. P s (kW) = P h(kW) / η (3) where . Casing (Volute). When a pump shaft breaks, the natural reaction is to blame the manufacturer. P s(kW) = shaft power (kW) η = pump efficiency. Online Pump Calculator - SI-units. Centrifugal Pumps; with shaft seal ; Base plate design; NT . The mechanical end of the pump includes the pump shaft, sealing, bearings and shaft sleeve. Hollow-shaft motors drive and support the pump rotor from the top by means of a head shaft that passes through the hollow motor shaft and connects to the pump line shaft. First, pump shafts break because: they twist, they bend, and they they wear out. Pumped liquid. First stage optionally available in double-entry design for low NPSH requirements. A simple technique for sizing pump shafts is based on limiting the maximum torsional stress to a semi-empirical value. The double decker design has two bearing levels. If a spacer type coupling is used, it is also unnecessary to disconnect the motor. Solid-shaft designs provide a standard keyway that engages a solid coupling to drive the pump, plus an annular keyway that accepts a split ring key to support the pump rotor. However, the special design of the POLYCRETE ® pump shafts offers even more advantages. Purchased products. Different flexible shaft coupling designs are available. RE: Materials selection for pump shaft CoryPad (Materials) 6 Apr 09 19:21. Double row design, ball/ball The simplest and most economical design is the ball/ball design as a deep groove or angular contact ball bearing, Figure3. NB. You can use seals SKF HMS5 or HMSA10 (HMS5 and HMSA10 seals). They are a sub-class of dynamic axisymmetric work-absorbing turbomachinery. Design according to DIN EN ISO 2858 / 5199; Modular System; Shaft Seal Packing; Single or Double Mechanical Seal (also available as a Cartridge Unit) Heating for Casing and Casing Cover available; Mechanical Seal-Cover available; Design based on API 610 available on Request; Brochure NOV. Flyer NOV. View More View All Sort & Filter. Specifies requirements and gives recommendations for sealing systems for centrifugal and rotary pumps used in the petroleum, natural gas, and chemical industries. The rotor shaft drives the pump through a crank mechanism; therefore the rotational speed of the pump is equal to that of the rotor and the pump See Fig. Volute Casing Centrifugal Pump in base plate design up to PN 10 . PUMP SHAFT DESIGN METHODS S-1100 INTRODUCTION (a) This Appendix provides guidelines for the design and evaluation of shafts for Section III nuclear pumps. But shaft sleeves, in particular, can provide extra protection and are much more cost-efficient to replace than shafts. Product Range Pumps. Done. The casing contains the liquid and acts as a pressure containment vessel that directs the flow of liquid in and out of the centrifugal pump. Vibration. As previously stated, a pump with a through-shaft is not leakproof. A basic canned motor pump design using a hollow shaft for inner circulation. Vertically Suspended Pump Shaft Bearings Boulden B-Series or Vespel® CR-6100 are ideal materials for vertically suspended pump shaft bearings, replacing traditional materials like bronze, carbon, or plastic bearings. Thanks. Pure water, industrial water, sea water, condensate, oils, brines, lyes, hot water. The universal joint shafts of this series have been optimized using FEM.

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