Cast iron pipe / KP mechanical joint

① Based on manual jointing of cast iron pipes (including straight pipes, fittings, and bends) positioned after laying. ② Material costs of joint accessories (gland ring, bolts, etc.) are excluded.

- Pipe work is applied on the basis that construction is affected by earthwork (excavation and restoration work, etc.); apply by multiplying the following coefficients in consideration of site construction conditions. Classification Standard market unit price Labor cost ratio - Site constructed under the influence of same-day excavation and restoration work - Where continuous excavation is not possible due to traffic restrictions, temporary shoring, obstacles (buried objects, etc.), etc., and excavation, pipe laying, and jointing are repeatedly carried out in parallel 1.00 1.00 - Site constructed under the influence of same-day excavation and restoration work 0.75 1.00 - Where excavation work is separately performed in advance and pipe laying and jointing are carried out continuously - Site constructed without the influence of excavation and restoration work - Where laying and jointing alone are carried out in an open-cut section with preceding work (excavation work or foundation work) completed 0.50 1.00 - When jointing using a separation-prevention pressure ring, apply by multiplying the following coefficients to the unit price and labor cost ratio. Classification Unit price Labor cost ratio Separation-prevention pressure ring 1.30 1.00