- Category: Chemical plant design
- Hits: 13460
Pipe Size ASA/DIN | mm |
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Cold insulation thickness type FG/PIR | mm |
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Hot insulation thickness type Rockwool | mm |
Insulation Norms
Cold | Hot | Cold | Hot | |||
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Insulation material type | FG/PIR (/m) | Rockwool (/m) | FG/PIR (/m2) | Rockwool (/m2) | ||
Insulation Thickness (mm) - (a,b) | ||||||
Pipe Size ASA/DIN - (x) | Unit | Unit | ||||
Removal of existing insulation | mhr/m | mhr/m2 | ||||
Removal of existing sheeting | mhr/m | mhr/m2 | ||||
Installation of existing insulation | mhr/m | mhr/m2 | ||||
Installation of existing sheeting | mhr/m | mhr/m2 | ||||
Installation of new insulation | mhr/m | mhr/m2 | ||||
Prefabrication of new sheeting | mhr/m | mhr/m2 | ||||
Installation of new sheeting | mhr/m | mhr/m2 |
Pipe Fittings & Valves - FG/PIR (/ea)
Insulation thickness (mm) | |
Pipe Size ASA/DIN - (x) |
Pipe Fittings & Valves type | Elbow | Tee | Reducer | Flange cap | End cap | Valve cap |
---|---|---|---|---|---|---|
Removal of existing insulation | ||||||
Removal of existing sheeting | ||||||
Installation of existing insulation | ||||||
Installation of existing sheeting | ||||||
Installation of new insulation | ||||||
Prefabrication of new sheeting | ||||||
Installation of new sheeting |
Pipe Fittings & Valves - Rockwool (/ea)
Insulation thickness (mm) | |
Pipe Size ASA/DIN - (x) |
Pipe Fittings & Valves type | Elbow | Tee | Reducer | Flange cap | End cap | Valve cap |
---|---|---|---|---|---|---|
Removal of existing insulation | ||||||
Removal of existing sheeting | ||||||
Erection of existing insulation | ||||||
Erection of existing sheeting | ||||||
Erection of new insulation | ||||||
Prefabrication of new sheeting | ||||||
Erection of new sheeting |
1. For all types of HOT Equipment insulation (Glass Fiber, Mineral Wool and Calcium Silicate), the work hour units are based on the following erection method:
Shell cover (blanket or block) is applied with staggered joint arrangement. Top and bottom edges are securely tied over support rings with wire on 12-inch centers. Vertical and horizontal seams are laced together by interlocking the wire mesh and with wire ties where necessary. The insulation is secured in place with bands spaced on 12-inch centers.
Head cover is shaped so that all sections closely fit the contour of the head and are laced together with wire, or are secured with bands on 12-inch centers at tangent line. Exposed head cover is secured with bands attached to a 1⁄4” round steel rod, with a floating ring on the top and a circumferential band at the tangent line of the vessel head. Unexposed head cover is secured with wire to insulation supports provided by the vessel manufacturer.
Weatherproof jacket on vertical equipment is supported on S-clips spaced on 4-foot centers. The jacketing for vertical and horizontal equipment is secured with bands spaced on 12-inch centers with one band at each circumferential lap. On vertical equipment, band loops are included on each band to prevent vertical movement. Weatherproof jacket on exposed vessel heads is a flat metal sheet cut into “pie” pieces and secured with screws on 3-inch centers.
2. For all types of COLD Equipment insulation (Cellular Glass and Polyurethane), the work hour units are based on the following erection method:
Shell cover (block) is applied with staggered joint arrangement. Joints are buttered with joint sealer. In double layer applications, the inner layer is applied without joint sealer. Each layer is secured with bands on 12-inch centers. Outer layer joints are offset from inner layer joints. Vapor barrier is outer layer only. Joints are sealed with a foil-to-mylar 3-inch wide strip applied over the vapor barrier. Contraction joints are included as 11⁄2” wide, packed with 2” of fiberglass blanket material, on 12-foot maximum centers.
Head cover is shaped so that all sections closely fit the contour of the head. Joints are buttered with joint sealer. In double layer applications, the inner layer is applied without joint sealer. Exposed head cover is secured with bands attached to a 1⁄4” round steel rod, with a floating ring on the top and a circumferential band at the tangent line of the vessel head. Unexposed head cover is secured with wire to insulation supports provided by the vessel manufacturer.
Weatherproof jacket on vertical equipment is supported on S-clips spaced on 4-foot centers. The jacketing for vertical and horizontal equipment is secured with bands spaced on 12-inch centers with one band at each circumferential lap. Each band is equipped with one breather spring.
- Category: Chemical plant design
- Hits: 9302
Number of bored pile that can be installed per day |
|
Pile diameter, or pile width, or sheet pile width |
m
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Pile length |
m
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Geotechnical conditions - SPT (N-value x 2) - blows/300mm ** |
kPa
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Socket material strength of socket UCS(MPa) * |
MPa
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Engine (kw) or vibro weight(t) x 25 |
kw
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Splicing time frames |
Production rates relative to piling methodology | Value | Unit | Concrete | Unit |
Bored Piles | 0 | no/shift | 0 | m3/day |
Bored Piles with Casings | 0 | no/shift | 0 | m3/day |
CFA Bored Piles | 0 | no/shift | 0 | m3/day |
Driven H Piles | 0 | no/shift | ||
Driven Tubes Piles with shoe | 0 | no/shift | ||
Precast Concrete Piles | 0 | no/shift | ||
Vibro Replacement | 0 | no/shift | ||
Sheet Pile Wall | 0 | no/shift | ||
Secant Pile Wall | 0 | no/shift | 0 | m3/day |
Diaphragm Wall | 30-50 | m3/shift | 30-50 | m3/day |
Soldier Pile Wall | 0 | no/shift | ||
Contiguous Pile Wall | 0 | no/shift | 0 | m3/day |
Soil Mix/Slurry Wall | 100-160 | m3/shift | 100-160 | m3/day |
References:
- ** Cource materials = SPT N-value(blows/300mm) x2 or fine materials = Cohesive strength (kPa)
- * Rock - Unconfined uniaxial compressive strength qu (MPa)
- It's important to match the piling equipment with the task at hand Splicing man-hours