Page 31 - Apollo - Industrial Applications Guide

DEFINITION: DEFINITION:

Webster’s New World Dictionary defines Webster’s New World Dictionary defines
ABRASION, Abrasive as: Slurry as:
1) a scraping of rubbing off, as of skin 1) a thin, watery mixture of a fine, insoluble material,
2) a wearing away by rubbing of scraping, as of rock by as clay, cement, soil etc.
wind, water, etc.
3) an abraded spot or area

INTRODUCTION: SERVICES:

It is difficult to discuss Abrasives without introducing Slurries into the Some of the most common Abrasive Slurry
conversation. It can certainly be said that most Abrasive services are Slurry, services are:
but you cannot assume that all Slurry services are Abrasive. Therefore, when
the service is said to be abrasive, one should take note and be very cautious in Gypsum Mud
recommending and/or selecting the materials of construction. Fly Ash
Lime
Lime and Magnesium
In Abrasive services it is important that all components of the valve (Body, Ball, Diatomaceous Earth
Stem, Seats, Seals, Bonnet in the case of the TEV) be verified to be the proper Paint
material for the indicated service. Always ask what Valve types and Materials Catalysts
have previously been used in similar services. Also, ask what the ratio of solids- Oil Filtration
to-liquids is, ask what the “carrier liquid” is because it does not have to be Printing Ink
water or some other common liquid … it could be an acid or a volatile liquid, Raw Water
and what is the velocity of the flowing media (it is recommended that Slurry - Saturated Steam
Abrasive velocities not exceed 7-8 ft/sec.; 2.13 to 2.44 m/sec.). Purified Teraphthalic Acid
Polyester Oligomers
CAUTION: When there is no history of services to fall back on, please contact the nearest Sulfur
Apollo® Factory Representative, or contact Apollo® Technical Services Group direct. Phosphates

MARKETS:
APPLICATIONS:
Wall Board
The Apollo® products will always be found in Isolation applications. Apollo® Pulp & Paper
must not be used is applications where the valve will be required to Chemical
continuously modulate (throttle) flow. A few common problems in Abrasive Petro Chemical
Slurry applications are: Refining
Power
Printing
• Entrained solids collect in the center Body cavity (NOTE: Cavity fillers are
available for the Apollo® Three-Piece) Foundries
Paint Manufacturing
• Abrasive Slurry services will increase the operating torque of a valve Water Treatment
• Cutting of Seat and Seal materials is not uncommon in Abrasive Slurry Waste Water Treatment
services Salt Dome Withdrawal
Asphalt Paving
Always discuss with the customer what benefits can be gained by utilizing Textiles
Purge/Drain porting of the Valve Body. Mining

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