The construction process of water supply, drainage and fire protection is all explained here


UPVC drainage standpipe installation process flow: hole cleaning on standpipe → hanging wire up and down → support installation → UPVC drainage pipe installation → casing installation and fixation → hole formwork erection → concrete pouring → vibration → closed water test → hole secondary concrete pouring and leveling → handover control points: hanging wire up and down, pipe support installation, drainage pipe installation, formwork erection, vibration and closed water test Picture and text analysis of construction process: 1

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Single UPVC drainage riser support is installed, and iron wire is used as vertical suspension wire up and down

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2

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Multiple pipes share an angle steel support, and iron wire is used as vertical line up and down to ensure the verticality of the riser

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3

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Steel casing on the drainage riser is prefabricated, and local anti-corrosion treatment is carried out

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4

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UPVC drainage riser is in close contact with the support, fixed firmly, and the verticality meets the specification requirements

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5 C

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the drainage pipe is separated from the support by plastic, which meets the specification requirements

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6

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The surface of UPVC drainage riser is protected by plastic film winding

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7

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The hanging formwork of the hole of UPVC drainage riser is supported by wood, To ensure the smoothness of the lower part of the concrete structure plate

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8

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Before pouring concrete, the sleeve on the UPVC riser should be filled first, and the annular gap around the sleeve should be consistent

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9

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When pouring concrete, the hole of the UPVC drainage riser must be vibrated with a hand-held vibrator

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10

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The water storage test of the UPVC drainage riser should be carried out after the first pouring of concrete

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11

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The secondary pouring concrete leveling should be carried out after the hole of the UPVC drainage riser is closed

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12

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Toilet drainage When the branch pipe is thrown, the through wall casing is added with node 13 at one time

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After the hole of the UPVC drainage riser through the floor is blocked, the lower part is flush with the original structural plate

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14

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The UPVC drainage riser is put on the casing, The parts emerging from the ground shall be treated with anti-corrosion treatment

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There are six aspects of PP-R water supply pipe installation process: drawing solidification → positioning and snapping line → support and hanger production and installation → PP-R water supply pipe hot melting → pipe horizontal correction → pipe fixation → through wall casing internal packing → through wall hole repair → pipe hydrostatic test control points: drawing solidification, snapping line, hot melting, correction, casing packing and hydrostatic test Graphic analysis of water pipeline construction process: 1

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Before the construction of PP-R water supply pipe support, the control line must be snapped under the concrete structure plate to ensure that the support is in a straight line

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2

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PP-R water supply pipes in the corridor are arranged in order, the fixed spacing of the support is uniform, and the flatness of the pipe meets the specification requirements

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A plastic hose is added between the PP-R pipe and the fixed support for protection

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The water supply branch pipe is plugged in the through wall sleeve

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3 4

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Balcony PP-R water supply pipe installation effect fire hydrant pipe installation process pipeline rust removal and painting → groove making → riser hanging line → bracket manufacturing and installation → pipeline fixation and welding → casing installation → riser hole hanging formwork → water closing at the hole → fire hydrant box installation → fire hydrant branch pipe opening → fire hydrant installation → pipe hydrostatic test control Key points of fire hydrant pipeline construction process: rust removal and painting, groove, welding, hanging formwork, water closing at the entrance, hydraulic test: 1

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Fire hydrant pipeline rust removal and painting, even painting on the steel pipe surface; 2

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Beveling treatment should be done at the welded steel pipe orifice according to the specification requirements (thickness greater than 4mm); 3

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Fire hydrant pipeline support should face the support surface before installation Painting 4

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During the installation of the pipe support, the vertical line method should be used to fix it to ensure the verticality of the pipe

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5

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The steel plate on the vertical pipe support should be buried and fixed firmly

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6

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The repaired vertical pipe support has a beautiful appearance

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7

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When the pipe is not beveled, there should be 1 ~ 2mm gap between the two pipes during spot welding

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8

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The vertical pipe and the support should be fixed firmly and contacted closely

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9

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When the floor height is more than 5m In order to ensure the elevation of the corridor ceiling, the local branch pipe adopts the form of reverse holding to fix the pipe 13

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After the installation of the fire hydrant branch pipe is completed, another anti-corrosion treatment must be done on the outside of the pipe 14

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The installation position of the fire hydrant port is accurate, and the elevation meets the specification requirements Institute 1 course: building water supply and drainage reading into classroom 2 course: Building Electrical Reading into classroom 3 course: indoor water and electricity design course into classroom 4 course: strong current primary design course into classroom 5 course: strong current intermediate design course into classroom 6 course: strong current advanced design course into classroom 7 course: weak current electrical design course into classroom 8 course: fire electrical design course into classroom 9 course 3 Lingplc teaching enters the classroom 10 courses PLC experience and skills enter the classroom 11 courses touch screen (man-machine) programming teaching enters the classroom 12 courses Guanglianda decoration budget course enters the classroom 13 courses building electrical design case enters the classroom 14 courses CAD from introduction to mastery enters the classroom 1 course investment and financial management course fund elementary course enters the classroom Class 2: fund advanced practical class entering class 3: stock initial class entering class 4: stock advanced class entering class 5: introduction to zero basic financial management entering class 6: how to choose potential fund entering class 7: insurance training camp entering class long press QR code to pay attention to our knowledge is to accumulate bit by bit every day, pay attention to us to share knowledge every day ! Click “watching” 👇🏻 , check in and clock out! Thank you for reading this article.

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