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PERFORMANCE EVALUATION OF TURBULENCE MODELS FOR FLOW

flow simulation of double suction horizontal split case centrifugal pump has been done at different operating points to derive the performance and flow characteristics of pump. The numerically ...<< more>>

Numerical Prediction of NPSHR Characteristics of Double

paper, an effort has been made to predict NPSHR characteristics of double suction centrifugal pump at three different operating points using Computational Fluid Dynamics (CFD) approach with two turbulence models. ...<< more>>

Double Suction Pumps | HSS/M/L/O Pumps

Double Suction Pumps (Model HSS / HSM / HSL / HSO) Double Suction Single Stage Pumps - For Long Life, Quiet Operation and High Efficiency Standard Features Heavy duty horizontally split casings simplify inspection and maintenance of rotating parts since piping does not need to be disturbed. ...<< more>>

Split Case Pumps - Horizontally Mounted

? Double wearing rings furnished as standard equipment on 8" and larger pumps all other as special equipment only Seal piping (127) & Lantern Ring (29) will be furnished only when suction pressure is less than atmospheric ...<< more>>

127E HMS DeLium Double Suction Pumps

HMS DELIUM DOUBLE SUCTION PUMPS for different pump models reduces significantly the cost of their maintenance. Vertical installation of pumps, as a standard option, is used in confined spaces where application of a similar horizontal pump is impossible (Fig. 1, 2, 3). Vertical installation ...<< more>>

An ITT Brand Pump Selection Guide - Goulds Pumps

2 Pump Selection Guide Goulds Pumps Serving the World’s Industries ISO models. Goulds Pumps specializes in high alloys for our chemical pumps ranging from 316SS to Zirconium and other Vertical turbine and double suction pumps can handle the most demanding condensate or circulating water needs. Sumps can ...<< more>>

(PDF) Suppression of secondary flows in a double suction

In order to save energy, pump impellers often are cut a little if a double suction centrifugal pump head is much higher than the required one in a water delivery system. ...<< more>>

Series VSX Split-Case Pump - Xylem - Middle East Region

At Bell & Gossett, we have over 88 years of experience in designing pumps. New VSX Double-Suction Split-Case Pump has Maintenance-Free Bearings, new One-Piece Unitized Seal, Groutless Base Plate, Alignment-Friendly Coupling, reduced pump room footprint by up to 40% when compared to traditional split-case and vertical inline pumps. ...<< more>>

Pump Selection Handbook - Multiquip Inc

Pump Selection Handbook. Let’s Talk About Pumps and submersible models. The second type of pump is the positive displacement design, the most common of which is the diaphragm type. These pumps partial vacuum to remove the air from the suction hose and pump ...<< more>>

Centrifugal pumps - petrowiki

High-flow models use impellers that accept suction from both sides and are called double-suction design. Thrust can be reduced by designing a single-stage impeller for a double suction. In multistage pumps, thrust can be reduced by facing half the impellers in one direction and half in the other. one or more of these factors must be ...<< more>>

API 610/ISO 13709 (BB1) Between Bearings, Axially Split

Consisting of a double-suction impeller operating in a double volute casing, the LPN’s design inherently results in optimal axial and radial thrust balance over the pump’s ...<< more>>

Double Disc Pumps - Penn Valley Pump Company | About Us

opening and maintaining your new Model 2” Penn Valley Double Disc? Pump. The Penn Valley, Double Disc? Pump utilizes a unique principle of operation whereby the discs perform the duties of both diaphragm and valve, providing a double acting, non-clogging, pumping action. ...<< more>>

Pump - Wikipedia

A pump is a device that moves fluids (liquids or gases), or sometimes slurries, by mechanical action.Pumps can be classified into three major groups according to the method they use to move the fluid: direct lift, displacement, and gravity pumps. Pumps operate by some mechanism (typically reciprocating or rotary), and consume energy to perform mechanical work for moving the fluid. ...<< more>>

Double Electric Breast Pump Reviews and Ratings

A pump’s suction or vacuum strength will also determine its rating of breast pump efficiency. dimension size and power source of different models. If the breast pump can be battery operated, the ratings will be higher. The article “Medale Pump In Style Double Electric Breast Pump Reviews and Ratings” share some tips to minimize ...<< more>>

DSV | Ruhr Pump Group

The Ruhrpumpen Type DSV is a heavy-duty, vertical double-suction, twin volute, single-stage, centrifugal design. This pump has good NPSH characteristics and can be used as a single stage vertical pump or can be used as a first stage for other vertical multi-stage pumps. ...<< more>>

Effect of modification to tongue and basic circle diameter

double-suction centrifugal pump, unstructured tetrahedral cells are generated to define the impeller Same gridding strategy is utilized to grid the models with different radical gap. The difference between them is just the cell number. Fig.3 Meshes in whole calculating region . ...<< more>>

Bell & Gossett Pumps - National Pump Supply

Bell & Gossett Pumps Bell & Gossett’s complete line of in-line and base-mounted centrifugal pumps and circulators canhandle virtually any HVAC requirement. The pumps are engineered for exceptional performance and rugged durability. ...<< more>>

PACO Horizontal Split Case Pumps: KP | Grundfos

Double suction minimizes axial load, which extends the life of the wear rings and shaft seal Double volute reduces radial forces and minimizes noise and vibration Independent bearing housing design allows access to the pump components without removing the top half of the casing ...<< more>>

Open Access proceedings Journal of Physics: Conference series

flow field in the double-suction centrifugal pump under different inlet conditions has been by comparing with the experimental data. At the same time, this practice can provide guidance for the optimal design of double-suction pump. Flow domain should be extracted from the assembly model of the double suction centrifugal pump for ...<< more>>

Reading Centrifugal Pump Curves

Centrifugal pump curves show pressure as head, which is the equivalent height of water mance charts at different speeds to see if one model satisfies the requirements more efficiently than another. Whenever possible the lowest pump speed By knowing the model, discharge pressure, suction pressure, and impeller size, the flow rate can easily ...<< more>>

Spectra Baby USA | Breast Pump | Manual & Electric Breast

Model: S1Plus Premier Rechargeable Electric Breast Pump. Loved by moms and lactation consultants worldwide, the Spectra S1Plus is designed to bring confidence and comfort to every moment of the breastfeeding journey....