NRV (non-return valve) in the CPWD DSR

The Electrical DSR writes NRV out in full, as "non return valve". These are the non-return valve items, by size, with their rates.

CPWD Electrical DSR 2025 (24)

20.21.1 Supplying, Installation, Testing and Commissioning of fixing of following dia.… — 80 mm dia ₹36,832 / Each
20.21.2 Supplying, Installation, Testing and Commissioning of fixing of following dia.… — 50 mm dia ₹8,693 / Each
27.14.1 Providing, installation, testing and commissioning of non-return valve of follo… — 40mm dia ₹6,257 / Each
27.14.2 Providing, installation, testing and commissioning of non-return valve of follo… — 50mm dia ₹6,257 / Each
27.14.3 Providing, installation, testing and commissioning of non-return valve of follo… — 65mm dia ₹6,913 / Each
27.14.4 Providing, installation, testing and commissioning of non-return valve of follo… — 80mm dia ₹8,255 / Each
27.14.5 Providing, installation, testing and commissioning of non-return valve of follo… — 100mm dia ₹11,853 / Each
27.14.6 Providing, installation, testing and commissioning of non-return valve of follo… — 125mm dia ₹16,929 / Each
27.14.7 Providing, installation, testing and commissioning of non-return valve of follo… — 150mm dia ₹18,884 / Each
27.14.8 Providing, installation, testing and commissioning of non-return valve of follo… — 200mm dia ₹30,896 / Each
27.14.9 Providing, installation, testing and commissioning of non-return valve of follo… — 250mm dia ₹47,622 / Each
27.14.10 Providing, installation, testing and commissioning of non-return valve of follo… — 300mm dia ₹63,466 / Each
30.7.3.1 NON — RETURN VALVE of 200 mm dia — COST FOR EACH ₹15,686 / Each
30.7.3.2 NON — RETURN VALVE of 150 mm dia — COST FOR EACH ₹10,155 / Each
30.7.3.3 NON — RETURN VALVE of 125 mm dia — COST FOR EACH ₹8,732 / Each
30.7.3.4 NON — RETURN VALVE 100 mm dia — COST FOR EACH ₹6,945 / Each
30.7.3.5 NON — RETURN VALVE of 80 mm dia — COST FOR EACH ₹4,821 / Each
30.7.3.6 NON — RETURN VALVE of 65 mm dia — COST FOR EACH ₹4,307 / Each
30.11.2.1 NON — RETURN VALVE of 200 mm dia — COST FOR EACH ₹13,845 / Each
30.11.2.2 NON — RETURN VALVE of 150 mm dia — COST FOR EACH ₹8,521 / Each
30.11.2.3 NON — RETURN VALVE of 125 mm dia — COST FOR EACH ₹7,329 / Each
30.11.2.4 NON — RETURN VALVE 100 mm dia — COST FOR EACH ₹5,614 / Each
30.11.2.5 NON — RETURN VALVE of 80 mm dia — COST FOR EACH ₹3,839 / Each
30.11.2.6 NON — RETURN VALVE of 65 mm dia — COST FOR EACH ₹3,364 / Each

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