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' E. Pumps shall be a peristaltic tube type, designed to convey Cationic Polymer. <br /> 4-- The <br /> 2L.1. Pump shall be Gapable ef 24 heuF GentiRueus duty, self pFiming and GpeFat!Rg <br /> either d'FeGt!eR of flew at Fated maximum pressure of up to 125 roc mn <br /> ipu <br /> capacity shall be 0.0019-19.02 GPH (a) 110 PSI Max. C <br /> 3-2. The pump shall be variable speed with a turndown ratio of 10,000:1. <br /> 2.03 MANUFACTURER <br /> A. Peristaltic tube pump Model Flexflo M3 and M4 by Blue-White was used as the design <br /> ' basis as specified herein and shown on the drawings. <br /> B. The Contractor shall base his bid upon this particular product, however If the Contractor <br /> proposes to use a supplier or manufacturer or model other than the basis of design, he <br /> may submit it as a deductive alternate along with a detailed submittal for review <br /> ' including the names and numbers of at least (10) references using similar equipment. It <br /> will be the decision of the Engineer and Owner to accept any proposal. Any changes in <br /> the layout shall be identified by the Contractor during that submittal process. Any <br /> changes to the project design, including but not limited to civil, structural, process <br /> mechanical, building mechanical, electrical, controls, accessories, engineering, etc. due <br /> to the manufacturer chosen shall be completed by the Contractor at no cost to the <br /> ' Owner. <br /> 2.04 PERISTALTIC TUBE PUMPS <br /> ' A. PUMP CONSTRUCTION <br /> 1. Pumps shall be a positive displacement, peristaltic tube type with a brushless <br /> variable speed motor, non-spring-loaded roller assembly located in the <br /> 1 pumphead, integral tube failure detection system, tube life roller revolution <br /> counter with user alarm set-point and flexible tubing with attached connection <br /> fittings. <br /> 1 2. Pumps shall be self-priming with a suction lift rating of up to 30 feet of water. <br /> 3. Pumps shall be capable of dry running without damage to the pump or hose. <br /> 4. The pump shall be certified to NSF Standard 61 Drinking Water System <br /> Components, UL standard 778 motor operated pump and CSA standard C22.2 <br /> process control equipment. <br /> The pump shall be manufactured to ISO 9001:2015 requirements and processes. <br /> 6-6 The pump skid to include the correct number of receptacles to allow the electrical <br /> contractor to provide the feeder circuit. <br /> 1 B. PUMPHEAD <br /> 1. The pumphead shall be a single, unbroken track with a clear removable cover. <br /> 2. Tube failure detection sensors shall be constructed of two Hastelloy C pins that <br /> are located at the bottom of the pump head. The Hastelloy C pins shall act as <br /> electrical contacts. When both Hastelloy C pins are immersed in a conductive <br /> fluid, a circuit shall be completed between the pins and indicate a tube failure has <br /> ' occurred. Tube failure detection system shall not trigger with water contact from <br /> rain or condensation. Float type switches shall not be used. Process fluid waste <br /> ports or leak drains shall not be provided. <br /> 3. Squeeze rollers with encapsulated ball bearings shall be directly coupled to a <br /> one-piece thermoplastic rotor. Four nylon rollers shall be provided; two squeeze <br />