The Condron Concrete Works Perfect Manhole System
Perfect Manhole System can be installed in minutes rather than the traditional labour intensive method. Save time and money.
The Perfect Manhole System is available in 1200mm, 1350mm. 1500mm, 1800mm and 2100mm diameters and comprises of:
- A monolithic precast concrete bases (available pre-benched in any configuration within just days of requisition).
- A sealed chamber ring.
- A rubber joint or butyl sealant strip.
- A sealed cover slab which is supplied with your required access.
- A sealed pipe connection for various pipe types.
This unique system of products combines to form the Perfect Manhole system. Designed and manufactured to last a minimum of 120 years. This is a sealed manhole system that gives up to 40% savings on greenhouse gases compared to traditional manhole construction and eliminates the need of ready mixed concrete to form the traditional base and chamber benching.
The Perfect Manhole can be installed in as little as 25 minutes, reducing the need to work in confined spaces, helping safe site practice, and eliminates the need for wet trades resulting in rapid construction compared to traditional methods as well as a reduction in the time the excavation is open.
The Perfect Manhole complies with ISEN 1917:2002 and IS420 and has been accepted for use by all major UK and Irish companies.
Benefits of the Perfect Manhole System
Safer Construction
- No requirement to work in confined spaces.
- No requirement to form a concrete surround around base.
- Reduction of open excavation.
- Cast in lift anchors for safe and secure handling.
GHG Savings
- Up to 40% savings on GHG emissions compared with traditional build.
Fast Installation
- Eliminates the need for wet trades resulting in rapid construction compared to conventional methods.
- No need to surround in concrete unless specifically required – Min 130mm base wall thickness.
- Anchor system ensures speedy and precise positioning.
Available at Short Notice
- Our modern methods of production enables the delivery of all components including monolithic bases at short notice.
Design Freedom
- All designed monolithic perfect base characteristics such as location of the inlets and outlets and invert configuration can be manufactured individually and exactly in accordance to the wishes of the specifier and client.
Perfect Hydraulics
- Everything flows. Optimised flow characteristics by customised base configuration of all inlets and precise drop in channels and pipe connections.
Watertight
- Watertight and durable connection seals for plastic, concrete and day pipes.
- The combination of a thicker wall and butyl seal or rubber joints ensures a watertight structure.
- A water tight homogenous base section is achieved once the base is lifted into position.
No Water Ingress into Sewerage Network Reduces Treatment Costs
- The combination of a minimum 130mm wall and sealed rubber joint is guaranteed to withstand a minimum of 5m / head pressure.
Combined Seal Includes Load Distributor
- Load distribution ensures even distribution of vertical loads.
Allows Joint Inspection
- Correct installation can be visually confirmed.
Efficient Construction
- Available in varying depths for efficient construction.
Base Options
- Available pre-benched or plain bottom with or without inlet/outlets.
Flexible Connections
- The perfect manhole can connect to plastic, clay or concrete giving you a larger choice.
Fully Tested under Factory Conditions
- The whole system from base to cover slab is subject to testing.
Kite Marked Solution Manufactured under Factory Conditions
- Complies with the requirements of ISEN 1917 and IS420
Concrete for Life
- Built to last. High quality durable concrete with a minimum 120 year design life.
1200mm Perfect Manhole Dimensions
| 1200mm Standard Base Unit | |||||||
| Dimensions mm | A | B (min.) | C (min.) | D | E (min.) | F | Weight (kgs.) |
| 100mm outlet | 1460 | 534 | 600 | 384 | 150 | 130 | 2261 |
| 150mm outlet | 1460 | 534 | 600 | 384 | 150 | 130 | 2261 |
| 225mm outlet | 1460 | 609 | 675 | 459 | 150 | 130 | 1700 |
| 300mm outlet | 1460 | 684 | 750 | 534 | 150 | 130 | 1818 |
| 375mm outlet | 1460 | 784 | 850 | 634 | 150 | 130 | 2004 |
| 375mm outlet Concrete pipe only | 1580 | 884 | 950 | 734 | 150 | 190 | 2696 |
| 400mm outlet | 1580 | 984 | 900 | 834 | 150 | 190 | 2925 |
| 450mm outlet | 1580 | 984 | 900 | 834 | 150 | 190 | 2877 |
* Also available with DIN spigot type
* Weights stated in above table are for Straight Through Perfect Bases.
* Perfect Base weights may vary depending on configuration, number and size of inlets.
* Contact our sales office for further information.
1350mm Perfect Manhole Dimensions
| 1350mm Perfect Manhole Dimensions | |||||||
| Dimensions mm | A | B (min.) | C (min.) | D | E (min.) | F | Weight (kgs.) |
| 100mm outlet | 1700 | 605 | 671 | 455 | 150 | 175 | 2191 |
| 150mm outlet | 1700 | 605 | 671 | 455 | 150 | 175 | 2182 |
| 225mm outlet | 1700 | 680 | 746 | 530 | 150 | 175 | 2580 |
| 300mm outlet | 1700 | 755 | 821 | 605 | 150 | 175 | 2741 |
| 375mm outlet | 1700 | 855 | 921 | 705 | 150 | 175 | 3036 |
| 375mm outlet - Concrete Only | 1700 | 855 | 921 | 705 | 150 | 175 | 3036 |
| 400mm outlet | 1700 | 855 | 921 | 705 | 150 | 175 | 3023 |
| 450mm outlet | 1700 | 955 | 1021 | 805 | 150 | 175 | 3266 |
1500mm Perfect Manhole Dimensions
| 1500mm Perfect Manhole Dimensions | 1500mm Perfect Manhole Dimensions | 1500mm Perfect Manhole Dimensions | 1500mm Perfect Manhole Dimensions | 1500mm Perfect Manhole Dimensions | 1500mm Perfect Manhole Dimensions | 1500mm Perfect Manhole Dimensions | 1500mm Perfect Manhole Dimensions |
| Dimensions mm | A | B (min.) | C (min.) | D | E (min.) | F | Weight (kgs.) |
| 100mm outlet | 1800 | 605 | 700 | 455 | 150 | 150 | 2346 |
| 150mm outlet | 1800 | 605 | 700 | 455 | 150 | 150 | 2346 |
| 225mm outlet | 1800 | 705 | 800 | 555 | 150 | 150 | 2798 |
| 300mm outlet | 1800 | 705 | 800 | 555 | 150 | 150 | 2986 |
| 375mm outlet | 1800 | 855 | 950 | 705 | 150 | 150 | 3328 |
| 400mm outlet | 1800 | 955 | 1050 | 805 | 150 | 150 | 3650 |
| 450mm outlet | 1800 | 955 | 1050 | 805 | 150 | 150 | 3599 |
| 500mm outlet | 1920 | 975 | 1070 | 825 | 210 | 210 | 3650 |
| 525mm outlet | 1920 | 975 | 1070 | 825 | 210 | 210 | 4198 |
| 600mm outlet | 1920 | 975 | 1070 | 825 | 210 | 210 | 4133 |
* Also available with DIN spigot type
* Weights stated in above table are for Straight Through Perfect Bases.
* Perfect Base weights may vary depending on configuration, number and size of inlets.
* Contact our sales office for further information.
1800mm Perfect Manhole Dimensions
| 1800mm Standard Base Unit | |||||||
| Dimensions mm | A | B (min.) | C (min.) | D | E (min.) | F | Weight (kgs.) |
| 675mm outlet | 2400 | 1183 | 1265 | 983 | 200 | 300 | 6420 |
| 750mm outlet | 2400 | 1220 | 1305 | 1020 | 200 | 300 | 6745 |
| 900mm outlet | 2400 | 1295 | 1380 | 1095 | 200 | 300 | 7395 |
| Smaller connections are available for the 1800mm Standard Base Unit on request. |
* Also available with DIN spigot type
* Weights stated in above table are for Straight Through Perfect Bases.
* Perfect Base weights may vary depending on configuration, number and size of inlets.
* Contact our sales office for further information.
2100mm Perfect Manhole Dimensions
| 2100mm Standard Base Unit | |||||||
| Dimensions mm | A | B (min.) | C (min.) | D | E (min.) | F | Weight (kgs.) |
| 1050mm outlet | 2700 | 1820 | 1915 | 1500 | 300 | 300 | 13000 |
| 1200mm outlet | 2400 | 2135 | 2230 | 1815 | 300 | 150 | 13000 |
| Note: Smaller connections for the 1800 & 2100mm dia. standard base unit are available on request. All weights are approx | Note: Smaller connections for the 1800 & 2100mm dia. standard base unit are available on request. All weights are approx | Note: Smaller connections for the 1800 & 2100mm dia. standard base unit are available on request. All weights are approx | Note: Smaller connections for the 1800 & 2100mm dia. standard base unit are available on request. All weights are approx | Note: Smaller connections for the 1800 & 2100mm dia. standard base unit are available on request. All weights are approx | Note: Smaller connections for the 1800 & 2100mm dia. standard base unit are available on request. All weights are approx | Note: Smaller connections for the 1800 & 2100mm dia. standard base unit are available on request. All weights are approx | Note: Smaller connections for the 1800 & 2100mm dia. standard base unit are available on request. All weights are approx |
Chamber Rings & Manhole Covers
| Internal Diameter of Chamber Rings | Wall Thickness (Approx.) | Chamber Height & Weight (kg) | Chamber Height & Weight (kg) | Chamber Height & Weight (kg) | Chamber Height & Weight (kg) | Chamber Height & Weight (kg) |
| Internal Diameter of Chamber Rings | 1.50m | 1.00m | 0.75m | 0.50m | 0.25m | |
| 1200mm | 110mm | - | 1120 | 800 | 570 | 290 |
| 1200mm wide wall (WTS) | 130mm | 2000 | 1350 | 840 | 690 | 350 |
| 1350mm | 140mm | - | 1660 | 1250 | 850 | - |
| 1350mm (WTS) | 140mm | - | 1660 | 1250 | 850 | - |
| 1500mm | 155mm | - | 2080 | 1565 | 1050 | - |
| 1500mm (WTS) | 155mm | - | 2080 | 1565 | 1050 | - |
| 1800mm | 160mm | - | 2420 | - | 1120 | - |
| 2100mm | 155mm | - | 3000 | - | 1520 | - |
- 2 number 32mm diameter lifting pin for 900,1050,1200mm Manhole Chamber units.
- 3 number 40mm diameter lifting pins for 1350,1500,1800mm Manhole Chamber units.
- 3 number 50mm diameter lifting pins for 2100,2400mm Manhole Chamber units Lifting pins available on request (certified) – See Pg. 27,45,46 of pipe/manhole brochure HERE.
- WTS– Water Tight System units are in accordance with Irish Water Specification STD/WW/10A Note 2 & Note 15 and incorporate EN681 Gaskets and cast in Lifting anchors. Certified Lifting Clutches are available on request.
- 3no. 2.5T Lifting Clutches required for 1200mm,1350mm,1500mm Perfect Bases and WTS Manhole Chambers.
- 4no. 2.5T anchors for 1800 Perfect bases.
- 3no. 5T anchors for 2100mm Perfect Base.
Note: Landing Area may vary depending on Base Diameter and Channel required.
Where concrete pipe connection to Perfect bases are required, a full-length Pipe must be cut as rocker pipe to the required length (min 600mm) and bevelled before connection. An off the shelf rocker pipe is not to be used or cut.
Ensure correct crainage and chains/slings used in accordance with the latest health and safety regulations. Any questions please ask.
| Manhole Covers | Thickness | Effective Thickness | Weight |
| 1200mm | 230mm | 150mm | 580kg |
| 13500mm | 300mm | 200mm | 1,020kg |
| 1500mm | 300mm | 200mm | 1,260kg |
Online:
To order please print this PDF and E-mail to Perfectbase@condronconcrete.com we will then send product detail and quote for your final approval.
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