Name of Work: PURCHASE OFPRE FABRICATED PORTABLE BIOGAS PLANT
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Item Description
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Portable (Prefabricated) biogas unit - .75 m3 capacity mixed culture fed batch type
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Unit with separate digester & wall mounted gas holder: HDPE Tank withcylindrical shape as digester and wall mounted flexible cuboid gas holderwith total volume 0.75 m3 as per the specifications belowAn IS 12701 standard 500 Litre capacity HDPE tank with a top cover.One ISO/TR 14933:2012 & 43.040.80 Standard Catalogue CuboidGas holder having size 100mm x 120mm with a 410 ltr @ 2 fill/ 24hrs capacity PVC Liner & PP Outer shade, anchored in the walls witha 6 mm steel anchoring bolt with 2 x 120 mm steel rods hanger notexceeding 6 mm dia. An 84 mm HDPE 3 Face Baffle connected to the digestion tank withbleeder-cap facility ( as safety precaution) One 1.5 metre length rubber based excess pressure relief DigesterLock (as safety precaution) One 74 mm HDPE Female Thread Adaptor210 mm PVC made Extra Large feeding Funnel for easy feeding ofbio waste into the digester A 20mm HDPE Gas Vent, connecting gas hose to the digester.An 8 mm HDPE made Bleeder Plug ( as safety precaution) A 14 mm dia special gas hose of 10 metre length is used for collectingthe gas from the digester to the gas holder. A HDPE 8 mm size Safety Pressure Relief Valve Embedded on thetop of the digester, as a safety precaution. An IS-8 standard gas Burner made of refractory brick with a 4 mmcentre hole and trenched duly fitted with a 6 inch thick galvanisedsteel pan top as per fire & safety standards. 3 units of 14 mm HDPE/ PVC Gas Cock for regulating the biogas. 2.5 Kg concrete weight is hung on the gas holder with a 5 mm steelweight hook in order to increase the pressure inside the gas holder. A user’s manual is printed or affixed on the gas holder.
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