Centrifugal Process Ansi Series

Centrifugal Process Ansi Series

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Description

RANGE

  • Delivery Size up to 200 mm (8" Inch)
  • Capacity up to 410 M3/Hr.
  • Head up to 150 Meter
  • Working Pressur 17 kg/Cm2

APPLICATIONS

Acid Transfer, Beverage Processing, Brine, Chemical Processing, Chloral-alkali, Corrosive Services, Organic Chemicals, Polymers, Sea Water, Solvents, Paper, Food, Synthetic Fibers, Slurry & others.

CONSTRUCTIONAL FEATURES

Pumps are as per ANSI B73.1-2001. The design is of back pull out type. Large varieties of models are available to operate at 1450 RPM and 2900 RPM at 50 HZ & 1750 RPM and 3500 RPM at 60 HZ. ANSI series chemical process pump is a horizontal single stage centrifugal pump.

SHAFT

The shaft is of the dry type, with protection sleeve to prevent contact with the pumped liquid (for gland packed & standard mechanical seal only). For specialized cartridge mechanical seal models the shaft will be in contact with the pumped liquid.

SHAFT SEALING

The stuffing box is sealed by gland packing or by mechanical seal. Conversion from gland packing to mechanical seal is achieved by changing some standardize parts. Re-machining of stuffing box is not necessary. Stuffing box cooling is provided for high temperature applications

BEARINGS

The bearing arrangement consists of Double Raw Angular Contact Ball Bearing and Single Row Deep Groove Ball Bearing. Oil level indicator is provided for oil level checking and maintaining.

Pump rotating element can be withdrawn towards the Motor end without disturbing the suction or delivery pipe lines, due to back pull out design. The motor remain fixed to base plate. The pump rotating element can easily be dismantled in to its components. After reassembly no time consuming re-alignment is necessary.

CASING

The casing has end suction and top centre line delivery. The pump feet are integrally cast in the volute casing. Smooth hydraulic passages ensure high efficiency.

IMPELLER

Impellers are of open type. Hydraulic balancing of impellers is achieved either by back vanes or by balancing holes. The impellers are dynamically balanced. Reliable fixing of the impeller on shaft is achieved by using helicoil insert under impeller nut.

DIRECTION OF ROTATION

Clockwise viewed from driving end

DRIVE

The pump is only recommended for direct via a flexible spacer coupling. Spacer couplings enable utilization of the back pull out feature.

BASE PLATE

Base plates for electric drives are available in a variety of styles. Standard: Fixed & grouted directly to the foundation Anti Vibration: Rigid base plate on rubber mounts

FLANGES

Standard : ANSI B16.5 -150 Class

Optional : Available on request

Reverse Vane Impeller Design

JEC offers pumps with reverse vane impeller which provides high efficiency and performance. The reverse vane design increases the bearings and seal life and thus offers low cost of the pump maintenance.

  • Required NPSH is low compared to standard centrifugal process pumps.
  • Back Pull-out design allows removal of rotating parts without removing casing, piping or motor.
  • Due to reverse vane impeller low pressure on the seal chamber results in long life of seal.
  • Rear cover plate wear surface rather than the casing which is expensive. Flow exits from the rear of the impeller hence abrasive wear on the rear cover.

Open Impeller (Front Vane)

  • JEC also offers the pump with open type impellers.
  • It has complete interchangeability with reverse vane impellers.
  • These type of impellers are mostly used in the applications where liquid contains solid particles or fibrous.
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