bids are invited for 1. diaphragm-epdm, valve assembly, weir type, socket weld, manually operated, size 15 nb, vss no.32003-2019-rev-0 - diaphragm (epdm) valve assembly, weir type, socket weld, manually operated, size 15 nb, vss no.32003/2019/rev-0 , 2. diaphragm-epdm, valve assembly, weir type, socket weld, manually operated, size 20 nb, vss no.999-52 - diaphragm (epdm) valve assembly, weir type, socket weld, manually operated, size 20 nb, vss no.999-52 , 3. diaphragm-epdm, valve assembly, weir type, socket weld, manually operated, size 25 nb, vss no.32003-2020-rev-0 - diaphragm (epdm) valve assembly, weir type, socket weld, manually operated, size 25 nb, vss no.32003/2020/rev-0 , 4. diaphragm-epdm, valve assembly, weir type, socket weld, manually operated, size 40 nb, vss no.32003-2021-rev-0 - diaphragm (epdm) valve assembly, weir type, socket weld, manually operated, size 40 nb, vss no.32003/2021/rev-0 , 5. diaphragm-epdm, valve assembly, weir type, socket weld, manually operated, size 50 nb, vss no.32003-2022-rev-0 - diaphragm (epdm) valve assembly, weir type, socket weld, manually operated, size 50 nb, vss no.32003/2022/rev-0 , 6. diaphragm-epdm, valve assembly, weir type, buttweld, manually operated, size 80 nb, vss no.34930-2051-rev 0 - diaphragm (epdm) valve assembly, weir type, buttweld, manually operated, size 80 nb, vss no.34930/2051-rev 0 total quantity : 280