introduction Nominal Check Valve Manhole Material Pipe Size chEck ValVE manholEs (mm) 150 Manhole Type Weight (kg) concrete pipe Check valve manholes are specialized structures that are installed inline with a pressurized water line. These units nominal Pipe manhole associated are designed to house a check valves and itstype size (mm) infrastructure, allowing access and control over the water line. 1200 is dictated by the lever The size of a 150 valve manhole dia . Monolithic base size check 200 1200 dia . required to operate the check valve. Monolithic base 250 1 .5m Type 1-S For more information on check valve manholes, please refer 300 1 .5m Type 1-S to the City of Calgary Water Resources Standard Specification 400 1 .9m Type 1-S for Waterworks Construction. 1200 mm dia. Monolithic Base 1900 1900 7100 7100 11300 Weight 200 (kg/piece) 250 300 400 Price 1200 mm dia. Monolithic Base Each 1.5 m Type 1-S 1.5 m Type 1-S 1.9 m Type 1-S 1900 1900 7100 7100 $1,525 $1,525 $7,700 $7,700 Notes: 11300 $10,160 • Check valve manholes come complete with cast-in Notes: neoprene gaskets pipe . 1 . Check valve manholes come complete with cast-in neoprene gaskets for C900 PVC for C900 PVC pipe. stormwater treatment technologies box sections Sampling Chamber Material samPlIng chambEr basE / toP slabs Item Item 840 mm Square Base for 600 mm Sampling Chamber 1124 mm Round Base for 900 mm Sampling Chamber 1473 mm Top Slab for 900 mm Sampling Chamber Weight (kg) 840mm square base for 600mm Sampling Chamber 160 375 650 1124mm Round base for 900mm Sampling Chamber 1473mm Top Slab for 900mm Sampling Chamber Sampling chambers are specialized manhole structures comprised of SDR35 PVCWeight pipes in either 600 or vertical Price 900 mm diameters. These units are installed Each with inline (kg/piece) stormwater or sanitary lines and incorporate a 150 mm 160 $180 drop between the inlet and outlet pipe to allow for sampling. The base and cap for these 375 manholes are comprised of the $370 concrete material outlined here. 650 $415 manhole and catch basin material For more information on sampling chambers, please refer to the City of Calgary Water Resources Standard Specification for Sewer Construction. LAFARGE PIPE eMANUAL PAGE 29