Reclamation Manual: Design and construction, pt. 2. Engineering design: Design supplement no. 2: Treatise on dams; Design supplement no. 3: Canals and related structures; Design supplement no. 4: Power systems; Design supplement no. 5: Field installation procedures; Design supplement no. 7: Valves, gates, and steel conduits; Design supplement no. 8: Miscellaneous mechanical equipment and facilities; Design supplement no. 9: Buildings; Design supplement no. 10: Transmission structures; Design supplement no. 11: Railroads, highways, and camp facilities, Volume 10, Parts 1-2 |
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Results 1-5 of 28
Page 1-4
... coefficient of discharge of 0.50 . As previously stated , diverging - water - passage valves with rounded discharge orifice are subject to serious cavitation and have high maintenance costs . An interior - differential design with ...
... coefficient of discharge of 0.50 . As previously stated , diverging - water - passage valves with rounded discharge orifice are subject to serious cavitation and have high maintenance costs . An interior - differential design with ...
Page 1-5
... coefficient of friction of 0.2 at starting and 0.15 at running is used . The discussion of the torque and strength required in the operating parts and castings as given in the design of the hollow - jet valves , Paragraph 1.6 , also ...
... coefficient of friction of 0.2 at starting and 0.15 at running is used . The discussion of the torque and strength required in the operating parts and castings as given in the design of the hollow - jet valves , Paragraph 1.6 , also ...
Page 1-6
... coefficient can be increased to 0.724 by increasing the needle travel 5.5 percent ; however the pressure in the water passageway will be reduced to atmospheric which is undesirable for continuous operation . ) B. The valve is operated ...
... coefficient can be increased to 0.724 by increasing the needle travel 5.5 percent ; however the pressure in the water passageway will be reduced to atmospheric which is undesirable for continuous operation . ) B. The valve is operated ...
Page 1-18
... coefficient of starting friction between the leaf seal and body seat , usually taken as 0.6 . The operating pressure in the hydraulic cylinder should be limited to about 750 psi and the cylinder should be designed for 1,000 psi . B. The ...
... coefficient of starting friction between the leaf seal and body seat , usually taken as 0.6 . The operating pressure in the hydraulic cylinder should be limited to about 750 psi and the cylinder should be designed for 1,000 psi . B. The ...
Page 1-19
... coefficient of 0.8 may be used to determine the quality of discharge at the gate orifice . B. To permit close and constant regulation the drive unit is usually a mechanical type instead of a hydraulic cylinder . The leaf is mounted on ...
... coefficient of 0.8 may be used to determine the quality of discharge at the gate orifice . B. To permit close and constant regulation the drive unit is usually a mechanical type instead of a hydraulic cylinder . The leaf is mounted on ...
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Common terms and phrases
anchor bolts angle APPROVED ASSEMBLY beam bending blockouts bottom Bronze BULKHEAD GATES BUREAU OF RECLAMATION BUTTERFLY VALVE Cast iron class clearance COASTER GATE coefficient COLORADO concrete cylinder Davis Dam Design Considerations DETAIL diameter discharge downstream Drill emergency gate expansion joint feet flange flow formula friction GATE HOIST gate leaf gear girder girth joints Grand Coulee Dam Head losses hex nut holes horizontal HYDRAULIC GATES Continued inches inlet installation INTERIOR BUREAU iron class 30 length LIST OF DRAWINGS longitudinal manholes maximum needle valve nozzle NUMBER operating OUTLET PIPES penstocks pier Piezometer pounds pressure PUMPING PLANT racks RADIAL GATE Reference Drawings REGULATING GATE Ring Seal roller roller gates rope SECTION A-A shaft Shasta Dam shown in Figure skin plate spillway stem STIFFENER RINGS structure support rings thickness trashrack TUBE VALVE Typical UNITED STATES DEPARTMENT upstream usually vertical wall plates water hammer welded wyes
Popular passages
Page 96 - V = velocity of flow in feet per second D = diameter of pipe in feet.
Page 1-12 - A coaster gate consists primarily of a skin plate supported by horizontal beams which, in turn, are supported by vertical girders at the sides. Continuous roller trains are mounted around the vertical...
Page 1-1 - The needle is moved by water pressure from the outlet conduit which acts on interior chambers in the valve. The movement is controlled by a...
Page 1-2 - Tube valves are ordinarily better adapted to underwater discharge or for use inside a conduit, since an insufficient air supply does not appear to produce all the cavitational effects inherent in other valves.
Page 108 - The pier must be stable against sliding. The vertical component of the resultant of all forces should not be less than the horizontal component of all forces divided by the coefficient of sliding friction at the base of the pier. The friction coefficient may vary from 0.35 to 0.65, depending on the underlying material. The base of the pier should be placed below the frost line. Steel reinforcement of concrete piers is usually limited to that required for temperature and shrinkage crack control.
Page 105 - The clearances at the ends of the sleeves and the distances from the ends of the sleeves to the packing- retainer rings should be ample to permit the maximum movement expected.
Page 108 - The vertical component of the resultant of all forces should not be less than the horizontal component of the resultant of all forces divided by the coefficient of sliding friction at the base of the anchor.
Page 105 - This consists of an inner and an outer sleeve, a stuffing box with packing, held by a retainer ring and compressed with a packing gland. The inner...
Page 1-24 - The reservoir water, when allowed to flow into the recess chamber, will cause pressure on the bottom face of the gate, thereby rotating it slowly upward about the hinge-pin until raised.