Tender For supply of spares for sandwich diaphragm remote head metering pump : - item 1 pressure relief valve suitable for pr35sdmr as per technical specification annexure attached , item 2 pressure relief valve suitable for pr35vsdmr as per technical specification annexure attached , item 3 pressure relief valve suitable for pr20vsdmr as per technical specification annexure attached , item 4 vaccum relief valve suitable for pr35sdmr as technical specification annexure attached , item 5 vaccum relief valve suitable for pr35vsdmr as technical specification annexure attached , item 6 vaccum relief valve suitable for pr20vsdmr as technical specification annexure attached , item 7 non return valve assembly set one suciton and one discharge suitable for 600 lph as per technical specification annexure attached , item 8 non return valve assembly set one suciton and one discharge suitable for 200 lph as per technical specification annexure attached , item 9 non return valve assembly set one suciton and one discharge suitable for 150 lph as per technical specification annexure attached