Sunday, August 9, 2009

All Types of Different Industrial Strainers

Y-Strainers

Y Strainers take their name from their configuration. They are typically used in application where the amount of solids to be removed is small, and where frequent clean - out is not required. They are most commonly used in pressurized lines, gas or liquid, but can also be used in suction or vacuum conditions. y type-strainer

A Y-Strainer has the advantage of being able to be installed in either a horizontal or  vertical position. However, in both cases, the screening element or "leg" must be on the "downside" of the strainer body so that entrapped solids can be properly collected and held for disposal.

A blow down plug on the drain port will allow clean-out without removal of the screen, and without interrupting the process flow.

Features

  • Machined, tapered seat ensures a perfect fit for removable, stainless steel screen
  • Covers furnished with blow off tapping
  • Heavy gauge perforated stainless steel normally furnished with spot welded seams. For exceptionally fine straining, perforated screens are lined with wire mesh.

Basket Strainers

Basket Strainers feature top removal of the screen. The screen is in the form of a basket, with a lifting handle, so that all particulate captured and retained by the screen can be easily removed for disposal. basket-strainer

They are intended for applications where large amounts of solids particulate are expected and where the clean-out will be frequent. For easily flushable solids, a modified cone bottom basket can be tilted with automatic or manual blow-down through drain port. This will allow clean-out without removal of the screen, and without interrupting the flow process.

Features

  • Large basket size holds sufficient solids for the required time between clean-outs
  • Top removal of screan with a lifting handle
  • Maintenance features includes Automatic flush, Davit arm assembly, pressure gaps or difficult pressure gaps, special internal coatings, single or multiple baskets
  • Baskets made of heavy guage perforated stainless steel lined with wire mesh as low as 5 microns.

Duplex Strainers

Duplex Strainers are designed for applications where flow cannot be shduplex-strainerut down to service the strainer screen. Change over is accomplished by use of butterfly valves. 

This arrangement provides a bubble-tight shut off between basket chambers, essential for use in negative head pump suction systems.

They are very economical because they are fabricated to your specific requirements and with your choice of valves.

 

Tee Strainers

Tee strainers is a custom fabricated compound strainer designed to remotee-strainerve foreign  particles from pipeline.

Tee strainers are used where a compact accessible strainers is needed for protection of pumps, valves and similar equipment.

 

Conical Temporary Strainers

For trapping foreign particles in the pipe line to be used as temporaryconical temporary-strainer strainers during start up and Trail runs. Used as resin traps also. Conical strainer installed in housing is  generally used on suction side and named as sanction strainers also. Low-pressure drop, compact size, robust design and ease of maintenance are some special feature soft these types of strainers.

 

 

 

Fabricated Strainers

Fabricated Strainers are designed for high pressures & temperatures and are availfabricated-strainerable  with flat or raised face, butt weld or grooved end connections. Fabricated strainers are available with a multitude of nozzle design options to adapt existing or contemplated piping schemes. They are used in industries such as power, chemical, oil & gas and pulp & paper.

 

 

 

 

Automatic Self Cleaning Strainers

Automatic self cleaning strainer is designed for continuous removal suspended particles automatic-strainer from all type of liquids. Application are in industrial plants using river, lake well or sea water for cooling, descaling, bearing lubrication and similar purpose, pipeline size, 50 mm to 1200 mm or large upon application.

Liquids other than water, such as chemicals acids white water (paper mills), sewage and ammonia flushing liquor can also be (coke plant) effectively strained.

The Eliminator, motorized, automatic, self-cleaning strainer, provides continuous debris removal from fluid piping systems that demand full time uninterrupted flow.

Air Eliminator

Description

Air Eliminators and Combination Air Eliminator Strainers are designed to provide separation, elimination and prevention of air in piping systems for air-eliminator-img
a variety of installations and conditions.

Positive displacement and turbine meters, being volumetric measuring devices, cannot differentiate between liquid, air and vapor. Although the air content, in most instances, is small when compared with the product, it will contribute to measurable error. Large amounts of free air or vapor entrapped in a piping system, not only compromises meter accuracy but can lead to overspeeding of the measuring unit, creating excessive wear or possible unit failure. To insure accurate liquid measurement, it is necessary to remove all vapor and free all entrained air from the
system prior to entry into the measuring unit.

Design Features

  • High capacity air elimination provides maximum meter protection and superior measurement accuracy
  • Large screen area means less frequent cleaning
  • Vertical tank facilitates installation
  • Wide variety of materials, screen sizes and pressure ratings
  • Easy maintenance

Principle of Operation

Air Eliminators decrease the velocity of the flowing stream and bring the liquid to a statestrainers with air eliminators of relative calm so that air bubbles or vapor will rise. As air and vapor collect in the top of the vessel, liquid volume is displaced. Once displaced to a predetermined point, a float-operated valve opens and the accumulated air and vapor is discharged from the tank. Liquid level then rises, causing the float-operated valve to close. Discharge rate is regulated by back pressure on the outlet side of the eliminator. If sufficient pressure differential is not available to maintain a proper rate, a back pressure valve should be installed.

Applications

In most applications, free air is eliminated without difficulty. Air which has become entrained in the product and carried along with the stream, however, must be separated from the liquid product and collected as free air before it can be discharged effectively. Entrained air in gasoline and low viscosity products separates and rises to the surface quite rapidly when the liquid velocity is decreased sufficiently. As viscosity increases, the rate of separation and rise of entrained air decreases and more retention time is required to effect surface operation. strainers-with-air-eliminators

Because tank size is a consideration in the storage and dispersal of collected air and  vapor, it is not always economical to remove entrained air from the system. When considering installations handling such products as heavy oils, it is usually far more economical to prevent the entrance of entrained air rather than eliminate it.

Products such as fuel oil, diesel oil, kerosene and LPG have a tendency to foam, causing air to be discharged in the form of vapor. Petroleum products in this form are hazardous when discharged to the atmosphere and, for this reason; require large air eliminators to accommodate increases in surface tension.

Installation

Installation of the air eliminator must be on the upstream inlet side of the meter on the discharge side of the pump. Discharge may be vented to the meter outlet, back to storage, or into a sump, condensation drum or tank.

Suction Diffuser

Description

Suction diffusers mounts to the suction side of a pump in either a horizontal or vertical suction strainer position. Suction Diffusers incorporate the functions of a strainer, flow straightener, elbow and pipe reducer in one compact unit thereby reducing installation costs.

It is designed to remove any foreign matter that may be hazardous to the pump or other system components, while providing the proper flow conditions to the pump.  suction diffuser Suction Diffusers are available in cast iron configured to replace a standard 90° elbow as well as in fabricated carbon steel or stainless steel customized to suit your installation. A wide variety of optional screens, mesh liners, covers, materials and other custom options are available.

suction diffuser1

 

Features

  • Minimal pressure drop (Oversized body & screen).
  • Perforated stainless steel screen with a 20 mesh stainless steel removable start-up  sleeve to help promote a cleaner more trouble free system.
  • Bolted cover plate with O-ring seal - standard.
  • Cast supporting pads on the diffuser body offer easy mounting of standard I.D. support foot.
  • Tapping for inlet and outlet differential connections - Optional.
  • Drain connection with plug - standard.



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