Manhole Shutters

Steel Manhole Surround Shutters for Precast Manhole Rings

The Pro Shore manhole shutter provides a quick and effective method of constructing circular formwork. It is primarily used to create a uniform concrete surround around pre cast concrete manhole rings.

3 Differing Panel Sizes for ease of construction
Captive Pin and Wedge System
Lifting points on all sizes
One standard height of 1800mm

“X” Nominal Internal Diameter of Manhole (mm)	“Y” Thickness (mm)	Number Of Sections Req’			“Z” External Diameter of Concrete (mm)	Theoretical Thickness of Concrete (mm)	Volume of Concrete Surround (m3)
“X” Nominal Internal Diameter of Manhole (mm)	“Y” Thickness (mm)	A	B	C	“Z” External Diameter of Concrete (mm)	Theoretical Thickness of Concrete (mm)	Volume of Concrete Surround (m3)
675	65	2	1	0	1171	183	1.02
900	75	2	2	0	1368	159	1.09
1050	85	3	0	1	1541	160	1.25
1200	100	3	1	1	1738	169	1.5
1350	112	3	2	0	1855	141	1.36
1500	115	4	0	1	2028	150	1.58
1800	115	4	2	0	2342	156	1.93
2100	120	5	1	1	2712	186	2.66
2400	135	6	0	1	3002	166	2.66
2700	162	6	2	1	3396	186	3.38
3000	210	7	2	0	3800	190	3.89