Grout Pumps - TSR Pump Documentation

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The TSR Grout Pump is a precision machine and must be cared for as such. Safe, accurate and dependable performance requires reasonable care and maintenance both before and after operation. Every pump owner and his operators should thoroughly understand the information provided with the pump.

The TSR pump will handle any chemical grout system but it has been optimized for urethane grouting resins. Most urethane resins are sensitive to moisture or are activated by moisture, so considerable care is needed to avoid letting moisture or water into the resin areas of the grout plant. Before any urethane is introduced to the pump, the resin side must be flushed with ST-590 or with a solvent to remove all moisture. Both sides of the pump may require flushing if the second component is also a resin.

The first flush is accomplished with ST-590 Kleen-Flush or with a solvent such as acetone. This may optionally be followed by a 50/50 blend of Acetone and DiOctyl Phthalate (DOP.). All flushing materials are introduced through the resin intake assembly. Additional information and useful hints on techniques may be found in the technical data sheets for ST-590 and ST-522.

Whenever flammable materials are pumped, such as during cleanup, connect a ground wire to the pump air motor. Loosen the grounding lug locknut and washer. Then attach one end of the ground wire (12 gauge minimum) and tighten the locknut securely. Connect the other end of the ground wire to a good ground point such as a steel building column or a copper water pipe. Always check your local electrical code for full compliance with applicable regulations.

The TSR pump can develop high fluid pressures. Eye protection should be worn when this unit is in use or energized. The pump is considered energized until all the cylinder pressure gauges read zero, the system air is disconnected, and the grout shut off valves at the downstream end have been opened to relieve pressures.

All fittings and hoses are rated to loads in excess of the pump capacity. However, field conditions as well as movement of equipment from site to site may change the condition of any part. Prior to use, do a visual inspection of all fittings, hoses and valves at lower air operating pressures, checking for leakage.

Attach a compressed air supply line or compressor to the grout plant intake located on the front of the pump motor just before the air pressure regulator. The regulator needle valve should be opened fully to reduce the air pressure directed toward the pump motor. To engage the pump motor, shift the valve lever located immediately above the regulator a 1/4 turn upwards. This will open the double acting pressure relief ball valve to direct the air flow toward the pump motor. The pump motor will activate the three pistons in the assembly.

All pistons are equipped with recirculating lines to bypass the “A” and “B” components. The intake lines all enter the lower section of each piston. The material is drawn from the source by the stroking of the pistons with a ball check located at the lower end of each piston. These check valves provide for a positive displacement of each stroke of the cylinders. The material then exits the top end of the pistons and enters through flexible high pressure hoses into a manifold assembly.

The manifold receives the materials through the intake port and discharges by opening the valves to the exit port with the bypass ball valve in the off position. Each manifold usually has two valves and controls the material intake from each piston pump and the output to the injection hose. The valves also control the bypass and allow the material to re circulate into the source container or other storage vessel.
The manifold is equipped with pressure relief valves to relieve excess pressure. The materials are pumped through lines coupled to the manifolds and the flow is directed towards the mixing head F Assembly. Each F Assembly is equipped with check valves to provide positive shut off of flow from one material line to the other.

The “F Assembly” has two ball valves to provide the grouting technician full control at the mix head.

Each TSR pump can dispense a twin-stream grout at a mix ratio of 1:1 and another preset ratio selected when the pump is built. The operator can select which of these ratios he wishes to use but cannot use any other without replacing the pump cylinders.

At the beginning of operations and periodically during use, the grouting technician should check the ratio output of the materials using a volumetric measuring device to determine exact volume of material dispensed with each stroke of the pump. Calibration is very simple and can be done in a few minutes by the operator or inspector. The grout lines should be disconnected just before the “F Assembly” when calibrating the material volumes.

When the discharge lines are off, the bypass or recirculating cylinders should not be run dry. When the pump operates, fluid should be flowing in either one or the other.

Should the operator wish to use only one piston directing one material as a single component, the other cylinders can be positioned in a recirculating or bypass mode to recirculate the lines.

The optional flushing assembly (if installed) is conveniently mounted on the frame next to the pump motor and includes a pressure pot capable of holding approximately 10 liters of solvent. The assembly is air activated and has valves to control the air input and materials output to the pump.

When flushing is required, hook on the quick couplers to whichever line requires flushing and pressurize the pot to direct the solvent through the necessary line.

Caution should be observed with handling and activating the solvent flushing system. Safety glasses and complete safety regulations typically applicable to handling of solvents should be observed. Consult your MSDS and the product technical data sheet on the safe handling procedures required for the specific solvents used for the flushing system.

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Strata Tech believes that the information herein is an accurate description of the general properties and characteristics of the product(s), but the user is responsible for obtaining current information because the body of knowledge on these subjects is constantly enlarged. Information herein is subject to change without notice. Field conditions also vary widely, so users must undertake sufficient verification and testing of the product or process herein to determine performance, safety, usefulness, and suitability for their own particular use.
Strata Tech warrants only that the product will meet Strata Techs then-current specification. NO WARRANTY OF SUITABILITY OR FITNESS FOR A PARTICULAR PURPOSE IS MADE. Users should not assume that all safety requirements for their particular application(s) have been indicated herein and that other or additional actions and precautions are not necessary. Users are responsible for always reading and understanding the Material Safety Data Sheet, the product technical literature, and the product label before using any product or process mentioned herein and for following the instructions contained therein.

Copyright C 1990 by Strata Tech, Inc. All rights reserved. No part of this publication may be reproduced or disseminated in any form, by any means, or stored in any electronic format without prior written permission from Strata Tech except as allowed under the U.S. Copyright Act, 1976. Printed in USA. REV 980421.
Will Jaques

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