HYDROVEX TTT Membrane Flow Regulator

Transcription

1 HYDROVEX TTT Membrane Flow Regulator INSTALLATION, OPERATION AND MAINTENANCE MANUAL

2 PROJECT EQUIPMENT LOCATION EQUIPMENT DESCRIPTION HYDROVEX TTT REFERENCE N OF THE SUPPLIER MODEL N SERIAL N DATE OF FABRICATION DATE OF DELIVERY SUPPLIER INFO Veolia Water Technologies Canada, Inc Sartelon Montreal, Quebec H4S 2B3 Tel.:(514) Fax:(514) cso@veolia.com ISO 9001:2008 CLIENT INFO CONSULTING ENGINEERING Page 2 of 10

3 WARRANTY All HYDROVEX equipment manufactured by VEOLIA WATER TECHNOLOGIES CANADA INC. is guaranteed to be free from defects in material and workmanship for a period of one (1) year from the date of installation, maximum 18 months from date of shipment. All equipment found with defects during this period will be replaced at no extra charge when shipped prepaid FOB to the manufacturer s shop. All parts sold by VEOLIA WATER TECHNOLOGIES CANADA INC. are warranted the same way for a period of twelve (12) months from date of shipment. If the customer promptly notifies VEOLIA WATER TECHNOLOGIES CANADA INC. in writing of a claimed defect in the equipment and said equipment is found not to be in conformity with this warranty, VEOLIA WATER TECHNOLOGIES CANADA INC. will, at its option and expenses, repair or replace such defective part, prepaid FOB to the manufacturer s shop. VEOLIA WATER TECHNOLOGIES CANADA INC. must be given notice of such defect, and, where requested, such material must be returned to the manufacturer s shop, transportation charges prepaid, with written approval for the shipment by VEOLIA WATER TECHNOLOGIES CANADA INC. This warranty shall be void if start-up of equipment is not authorized by VEOLIA WATER TECHNOLOGIES CANADA INC, or if repairs and/or alterations are made without a written authorization by VEOLIA WATER TECHNOLOGIES CANADA INC. If the equipment or parts supplied by VEOLIA WATER TECHNOLOGIES CANADA INC. are altered in any way without VEOLIA WATER TECHNOLOGIES CANADA INC. consent, the present warranty will not be valid and have no effect. The customer will use only VEOLIA WATER TECHNOLOGIES CANADA INC. parts for all labor covered by this warranty. The foregoing warranty excludes responsibility or liability for: (a) (b) (c) (d) (e) Failures not reported promptly within the warranty period, above specified. Damage due to accident, abuse, shipment, improper installation or operation, or abnormal operation condition. Damage caused by client s replacement, repair or inspection of parts. Lesion or personal accidents, material damage or any direct or indirect expenses or loss of profit related to this warranty. Damage, loss, expenses, lesion or personal accidents directly or indirectly related to the installation, the operation or the failure of the equipment supplied by VEOLIA WATER TECHNOLOGIES CANADA INC. The foregoing warranty is exclusive and replaces all other warranties, expressed or implied, including but not limited to any warranty of bargaining or modification for a particular purpose. This warranty does not cover the following: (a) (b) (c) (d) (e) Costs of repair, modification or other work done or requested by the customer or the management and all indirect costs. All expenses related to regular maintenance of parts as prescribed in the operation and maintenance manuals supplied by VEOLIA WATER TECHNOLOGIES CANADA INC. Costs of dismantling, installation, transportation and insurance. Travelling and living expenses for the personnel carrying out the repair under such warranty. This warranty is not a performance or production warranty. VEOLIA WATER TECHNOLOGIES CANADA INC. has the right to examine or to ask for details about defects before empowering the present warranty. Page 3 of 10

4 TABLE OF CONTENTS Page 1.0 GENERAL INFORMATION APPROVED SHOP DRAWINGS AND DISCHARGE RATING INSTALLATION PROCEDURES 3.1 INSTALLATION IN DRY PIT INSTALLATION IN WET PIT OPERATION MAINTENANCE 5.1 INSPECTION CLEANING METHODS Page 4 of 10

5 Section 1.0 GENERAL INFORMATION The HYDROVEX TTT is a static device that controls discharge flows without the aid of any moving parts or external energy. The control is accomplished as a result of the unit s geometric shape and depends solely on the upstream water pressure head. The HYDROVEX TTT can only work effectively if the installation is properly carried out. Therefore, we recommend that the installation procedure be followed carefully and that: The contractor or subcontractor is familiar with the simple installation procedures of the HYDROVEX TTT. The various elevations, as shown on the drawings, have been verified and respected. That the access hatch to the regulator chamber has a sufficiently large opening for allowing the passage of the HYDROVEX TTT. That you possess all the necessary components of the HYDROVEX TTT required for installation. If you have any problems and or questions concerning the installation procedure, DO NOT HESITATE to contact Customer Service at: Veolia Water Technologies Canada Inc Sartelon Montreal, Quebec, H4S 2B3 Tel.: (514) Fax: (514) cso@veolia.com ISO 9001:2008 Page 5 of 10

6 Section 2.0 APPROVED SHOP DRAWINGS AND DISCHARGE RATING CURVES The drawings and discharge rating curves included hereafter have been approved by the consultant. This information is then used to fabricate the equipment and to evaluate the performance of the equipment. Page 6 of 10

7 Section 3.0 INSTALLATION INFORMATION The model number is an important factor for the installation. For example, 150 TTT-U indicates the inlet diameter of the HYDROVEX TTT, 150 meaning that the unit has a 150- mm nominal diameter. However, all the nominal metric dimensions are converted in standard North American piping. Here are the pipe diameters for the various TTT units: 3.1 INSTALLATION IN DRY PIT Model Diameter 100 TTT (U)(I) 4 inches 150 TTT (U)(I) 6 inches 200 TTT (U)(I) 8 inches 250 TTT (U)(I) 10 inches The chamber that will receive the HYDROVEX TTT should be cleared and properly cleaned prior to installation. Verify if the wall thimble or knife gate is of the proper size. Step No. 1: Lower all of the equipment in the chamber. We assume that the wall thimble and the knife gate valve have already been installed at the right elevation. Step No. 2: Support the HYDROVEX TTT close to the installation centerline of the out coming pipe to make all the relevant adjustments. NOTE: The wall thimble has to be horizontally installed and the knife gate has to be vertically installed. Step No. 3: Align the HYDROVEX TTT with the piping and verify the unit alignment. Step No.4: Tighten all flange bolting, and fix all necessary anchors. Step No. 5: Open fully the knife gate valve and be sure that the by-pass is completely closed. After this installation, the equipment is ready for operation. The unit is always shipped with an extra membrane. Please make sure that this membrane is stored in a dry area and away from direct sunlight, with correct identification at the owner's convenience. This membrane might come handy for maintenance purposes. Page 7 of 10

8 3.2 INSTALLATION IN WET PIT The chamber that will receive the HYDROVEX TTT should be cleared and properly cleaned prior to installation. Verify if the wall thimble is of the proper size. Refer to drawings. Step No. 1: Lower all of the equipment in the chamber. We assume that the wall thimble has already been installed at the right elevation. Step No. 2: Support the HYDROVEX TTT close to the installation centerline of the out coming pipe to make all the relevant adjustments. NOTE: The wall thimble has to be horizontally installed. Step No. 3: Align the HYDROVEX TTT with the piping and verify the unit alignment. Step No.4: Tighten all flange bolting, and fix all necessary anchors. After this installation, the equipment is ready for operation. The unit is always shipped with an extra membrane. Please make sure that this membrane is stored in a dry area and away from direct sunlight, with correct identification at the owner's convenience. This membrane might come handy for maintenance purposes. Page 8 of 10

9 Section 4 OPERATION The operation of the HYDROVEX TTT is based on the Bernoulli principle that is the local depression caused by the velocity of a fluid. The principle can be applied by depressing the pre-stressed membrane trough orifices in the supporting pipe. The pipe has two oval orifices on the side and is installed on the discharge pipe of the reservoir. When the water level increases in the tank upstream tank above the HYDROVEX TTT, the water pressure increases on the outside of the stretched membrane, while the pressure inside the stretched membrane remains at the atmosphere. This pressure difference is further increased by the effect of the water velocity inside the membrane (Bernoulli effect), forcing the membrane to close against the ovals. The reaction of the membrane to the pressure makes the velocity inside the pipe increase, resulting in a decrease in pressure inside the pipe. The combination of those effects creates a strongly regulated discharge at the outlet, with a flow that remains almost constant after the membrane is actuated by the pressure. Page 9 of 10

10 Section 5.0 MAINTENANCE 5.1 INSPECTION The HYDROVEX TTT does not contain any moving parts and requires little maintenance. A visual inspection must be regularly performed on the HYDROVEX TTT at the inlet as well as the outlet of the chamber. This inspection has the purpose of insuring that flow is normal and nothing is blocking the path. Verification of the membrane is required to make sure that there is no sign of wear or that the membrane is pierced. If the membrane is pierced, the flow control will be erratic and replacement of the membrane must be made. 5.2 CLEANING METHODS Step No. 1: Close the knife gate at the inlet of the HYDROVEX TTT and open the knife gate on the bypass of the regulator. Let the network drain itself. If the knife gate cannot be closed because of blockage, empty the upstream by the opening the by-pass or by pumping if the by-pass is also blocked. Never work on a flow regulator without making sure that there is no upstream pressure. If there is no by-pass, pump the upstream chamber for the cleaning period. If the equipment is under pressure for some time, watch for the release of toxic gas when the knife gates are actuated. In doubt, please use a pump to empty the upstream water. Step No. 2: Verify if the obstruction occurred inside the regulating chamber. If this is the case remove the obstacle to clear the path. If not, clean the inside of the regulator with care so as to not damage the membrane, then open the knife gate at the inlet of the regulator and close the knife gate on the by-pass. Page 10 of 10