Hydraulics Clause Samples
The Hydraulics clause defines the standards and requirements for hydraulic systems or components involved in the contract. It typically specifies the quality, performance criteria, and maintenance obligations for hydraulic equipment, such as pumps, hoses, or actuators, that are used in the project or supplied goods. By clearly outlining these expectations, the clause ensures that all hydraulic elements meet necessary safety and operational standards, thereby reducing the risk of equipment failure and disputes over performance.
Hydraulics. This category of service includes preparation of hydraulic reports for bridges and culverts, design of storm drains, drainage and irrigation facilities, bridge scour evaluations, and evaluation of flood potential and hazards. The consultant shall follow the procedures outlined in the ITD Design Manual and as directed by the Hydraulics Engineer.
Hydraulics. The Iso-cylinders and valves in the appendix are to be used.
Hydraulics. 6.1 Potable water supply
(a) Stalls located within or adjacent to permanent buildings (RASV will provide access to a potable water supply) Stalls located in, or adjacent to, permanent buildings and which will handle, prepare or ▇▇▇▇ food are required to have a supply of hot and cold running potable water to the stall suitable for: drinking; washing food ingredients; cooking; adding to drinks; cleaning, sanitising and hand washing.
(b) Stalls located on grounds All stalls located around the grounds are to be provided with tanks or other containers for clean water storage if there is no piped (hose) supply from a reticulated system. Water containers are to hold an adequate amount of water (City of Melbourne requirement is 25 litres) to enable effective washing of food, hands and equipment during the course of the operations.
6.2 Hand basins
a) Stalls located within, or adjacent to, permanent buildings and in which exposed food or food ingredients are handled must be provided with a hand basin supplied with hot and cold running water.
b) Stalls located on grounds where there is no piped water supply are to provide a purpose built and designed commercial hand wash unit.
c) Hand basins must only be used for the purposes of hand washing and for no other purpose and must at all times be supplied liquid hand soap, paper towels for hand drying and a waste bin.
Hydraulics. Consultant shall generally analyze and review the lift station hydraulics. The flow rates shall be documented in connection with EVMWD staff and the results of the 2016 Sewer Master Plan. System head losses and energy efficiencies should be evaluated.
Hydraulics. The peak design flow shall be determined as recommended in the latest revision of the DOE’s Criteria for Sewage Works Design (Orange Book). This analysis shall be compared with the most recent planning information available from District. The lift station capacity shall be the peak hour flow rate with its largest pump offline (firm capacity, as defined by the DOE). Pump selection and force main size shall ensure a minimum velocity of 3 feet per second in the force main. Force main velocities shall not exceed 8 feet per second. Hydraulic and pump design shall conform to the Orange Book and the latest revision of the Hydraulic Institute Standards. The Developer shall submit a lift station and force main pressure surge analysis (water hammer) to the District as recommended in the Orange Book in a format acceptable to the District. The analysis shall incorporate calculations for minimum and maximum pressures in the system for the anticipated worst case scenario, including pump starts and sudden power outage shutdowns. Surge protection shall be installed as required by the surge analysis and approved by the District. If required, surge protection could include devices such as: pump control valves, variable frequency drives, use of high strength piping, and vacuum relief valves (swing check type). Critical surge protection devices shall protect the system under all operation conditions, including a power outage shutdown while the station is operating at its highest allowed capacity. Hydro pneumatic tanks shall not be used for surge control. If vacuum relief valves are used, a total number of two valves shall be installed in a vault for redundancy and maintenance purposes. Vaults shall be drained to the nearest gravity sewer, side sewer lateral, unless the District determines another means is acceptable. Vault floors shall be sloped to the drain. Vaults shall meet all requirements of this Division 4 and those applicable from Divisions 2 and 3. All hydraulic calculations, including the pressure surge analysis, shall be signed and stamped by a Professional Engineer licensed in the State of Washington and shall be provided to the District in a station design report.
Hydraulics. 3.1 The Consultant shall prepare a hydraulic flood analysis for the existing and proposed stream crossing. The analysis will contain data required by State and Federal agencies, including a risk assessment and a scour analysis. The hydraulic analysis will be based on steady, gradually varied peak flow conditions for all flood frequency events analyzed.
Hydraulics. Offeror shall provide a complete description of the hydraulic system (if used) to include system schematics and its function in the flight controls. Desirable information in support of the system evaluation include demonstrated compatibility using MIL-H-83282 hydraulic fluid, filter ratings, recommended and actual achieved system fluid cleanliness, system flushing and bleeding procedures, system temperature monitoring and controls, ballistic tolerance test results, and allowable internal and external leakage data..
Hydraulics a. Pumps in other than water service shall have a minimum margin of 0.6 meter between NPSH (Net Positive Suction Head) available and NPSH required.
b. Pumps shall be designed for continuous operation at a minimum of 28 deg. C higher than specified maximum operating temperature.
c. Mechanical seals shall be designed for the maximum operating temperature. Provisions of OISD- STD-125 shall be followed for selection and design of mechanical seals.
d. Flow dampner and pressure relief valves shall be provided in positive displacement pumps.
Hydraulics. This effort involves performing a hydraulic evaluation of the existing and proposed hydraulic features within the project area. This includes cross drainage structures. For the 9 major crossings, the Engineer shall perform hydraulic analysis using the USACE’s HEC-RAS
Hydraulics overview of hydraulic modeling process, including data sources, specific model uses, descriptions of existing drainage structures, discussion of design alternatives and the results of respective hydraulic modeling for the scenarios evaluated; hydraulic model output data including existing, hydraulic data sheet, and proposed conditions summary tables; summary of assumptions made in preliminary closed storm sewer design.