【 Weak current College 】 pipeline construction drawings to read and do the installation budget basics (3)

(B) ventilation and air conditioning

1. the project selected outsourcing wind pipes, you must also provide the appropriate product certificate file or strength and tightness of the validation.

2. the ventilation pipe specifications of acceptance, the wind pipe outside diameter or length outside to prevail, duct to inner diameter or side length within, irregular oval duct reference rectangular duct with long RADIUS plane length and short diameter size.

3. galvanized steel and various types of protective layer containing Composite plate should be used in Pittsburgh connection or riveting, shall affect the protective layer anticorrosive performance of welding connection method.

4. air duct sealing plate connection should be closed, can be sealed plastic caulking and other methods. Sealant performance shall conform to the requirements of using environment, sealed surface yishe in duct pressure side.

5. the wind tube material: ordinary steel, galvanized steel, stainless steel, hard PVC, organic glass, inorganic GFRP (glass fabric layer number not less than the specification requirement, the surface shall not appear reversed halogen or severe functional cream)

6. fire protection duct of ontology, frame and fixed materials, sealing materials must be non-combustible materials, the fire resistance rating should meet the design requirements.

7. composite duct of cladding materials must be non-combustible materials, internal

Chapter IV fixed lecture

A fixed, drainage, heating

(A) General information

1. the station class pipeline and indoor plumbing Division: station or room exterior skin for the session.

2. the indoor and the outdoor pipe Division pipeline: exterior skin 1.5m as territories.

3. outdoor pipe and municipal pipe Division: pipe the DN150 outdoor, > DN150 municipal; seamless steel pipe the Φ Φ 159 > outdoor, cast iron the DN250 159 municipal, > DN250 municipal outdoor

4. operating height: ultra high coefficient > 5m, refers to the operation or installation height from the ground-floor.

Base: artificial shadow days * ultra high coefficient

5. the high-rise construction super high fee: cornice height > 25m, fee Base: artificial fee * high-rise building ultra high fees

6. heating system debugging fee: unit project labor cost * 14% (not including the cost of heat source), where labor costs accounted for 78% of debugging fee.

7. scaffolding toll: unit project labor cost * 2%

(2) Interior pipe:

Understanding: pipeline pressure, texture, differently

1. pipe chamber pressure: low layer a pressure test; senior hierarchical pressure test, pressure test, system test individual and covert works, etc.

2. low voltage galvanized pipe (silk) within the pipe clamp to DN32 included.

3. low voltage galvanized pipe (welding) without hangers, pipe fittings included (finished product: elbow, on-site machining: tee-off System)

4. low voltage galvanized pipe (flange connection) required secondary zinc plating, flange plate, costs not included

5. Groove connection (clamp connection) for water supply and drainage, fire and gas

Mechanical or opening connections: commonly used in the three links

Grooved pipe fittings:

6. water supply for cast iron pipe: commonly used in the underground entrance tube (cast iron pipe with steel tube high mechanical strength, resistance to corrosion)

7. drainage cast iron pipe: horizontal connection > 6 stool or tall buildings will set auxiliary pockets

Auxiliary ventilation tube fittings, through its CAP, standpipe inspection openings to content in the form included in the fixed, does not require a separate calculation. Y-h-h

8. flexible drainage cast iron pipes: interface to A type of rubber flange; W-type clamp connection

9. aluminum-plastic composite pipe: brass pipes connection or bite type connection, pipe connection between threads

Aluminum-plastic composite pipe and the water supply pipe included PVC-U fittings, steel-plastic transition connector installation charges, but does not contain the main material, content 1.01

Aluminum-plastic composite pipe inside contains pipe clamp DN32

10.U-PVC drainage plastic pipe fittings included: air cap, expansion joints, checked and stool for connecting pipe (squatting Pan) does not have a separate calculation; collar or fire sleeve separately.

11.PPR tube: Add an implementation of galvanized steel; water supply pipe UPVC bonding implementation; heat welding implementation of Chapter VIII of the gas pipeline PE pipe electric hot-melt.

(3) the budget price

1. the material budget price has three parts: the supply price, maintenance costs and purchasing costs

Which supply price has the following parts: trucks with freight, packaging, and marketing departments handling, appearance fees.

2. the cost information on the prices for shipment to the construction site of the price, but not including 2% fee.

3. machinery rent costs depreciation fixed compilation: (within the scope of the provisions on the use of recovered its original cost)

Maintenance fees (overhaul, maintenance)

4. project cost includes: direct costs, enterprise management costs (after deduction of the project Department of medical and pension), profits and taxes. Direct costs include: artificial fee, material fee, machinery and on-site management fees (including on-site management fees including temporary facilities and on-site requirements).

(4) outdoor pipe

1. the old pipes and pipe fittings: new heat source to quote section 12 to meet the outdoor heat pipelines; water supply pipe form section 13 outdoor water cast iron pipe with three water connector.

2. fill in the sand: according to the design requirements are calculated, not necessarily filled with reclaimed for buried pipe and buried pipe.

(5) station class pipe

1. volume welding fittings: finished form low volume welded steel pipe fittings installed premium main Member;Farm produce processing form low volume welded steel pipe fittings installed, do not need to fill the main material.

2. on-site machining of various pipes, including competent dig eye inscribed, wrestling-reducers, and so do the fittings connections corresponding to the item no longer calculate fitting main member fee, to dig the hole tee branch pipe is less than competent diameter 1/2, pipe specifications according to the branch pipe diameter gauge; if branch pipe diameter greater than 1/2 head diameter, pipe specification form by the competent pipe diameter.

(6) valves and flanges

1. relief units:

2.

3. a single valve and flanged control valve to dredge water valve performs low pressure; pressure reducer (pressure relief group) with the trap (trap group), regulator and trap the installation.

4. flange valve when a lateral flange connection, flange, bolt, nut half as many.

5. valve callout:

Valve type transmission mode connection structure of the valve seat sealing surface nominal pressure valve body material or lining materials

Such as: Z44T-10DN50 gate valves flanged clear Rod connection 1.0MPA diameter 50mm

J Z gate valve, globe valve, A relief valve, check valve, H

L Q ball valves, throttle valves, D butterfly valve, diaphragm valves, G

X plug valve, reducing valve, Y, U plunger S steam traps

5. partial pressure flange flange, specifications and connection to Vice (film):

Pipe flange connections between, perform flange (per pair)

Valve installation (including flanges) can no longer perform flange installation

Piping and equipment and apparatus connection implementation of flange (per piece), a device from the zone.

(VII) sanitary ware

1. the squatting pan: If using UPVC pipes, squatting pan pipe not count, including at the connector parts.

2. toilet: If a single execution after drainage, a toilet bowl soft connector installation (pipeline and stool)

3. toilet flushing cisterns produced trough: the implementation of chapter nine production radiator. Rinse the water tank bracket implementation of Chapter 13 making device support.

4. civil MOP pool: floor installation water nozzle and floor drain installation; desktop implementation of the water nozzle and bring water bends the drainage plug. Lavatory faucets and Taiwan do without water bends the drainage plug; many faucet sinks perform multiple tap and bring water bends the drainage plug, if leakage can perform water faucet, without water bends the drainage Plug and floor drain.

5. washing machine interface implementation tap install, change the main material: tap.

6. multifunctional leak, bathtubs drainage water box (Cabinet) installation for three with drainage installation corresponding to the item.

7. horizontal sweep sweeping mouth do exports (more than two stool or three above water apparatus must be set to sweep export)

8. the standpipe inspection openings, breathable apparatus and expansion joints in pipes content, no separate calculations.

9. hanging there for drag-and-later (stent) shall be calculated separately.

12. equipment trailers brush oil be brushed metal bracket performed.

(8) heating apparatus

1. cast iron radiators: generally needed onsite group, not clear with the installation are performed the same item, each group has installed upon arrival brought foot plate and not bring enough film. Mount not only in the movie.

2. floor install heatsink: 14 slices, 2 bring enough film, 15-20 tablets, 3 bring enough film.

3. type cast iron radiators installed each group of more than 20, you need to pull, draw a separate calculation of costs, φ 6 bar, do one of the metal bracket making installation item.

4. fixed the interfaces listed in the sealing materials are prepared by finished pad, if not match with the design shall not be adjusted.

5. steel closed radiator: generally refers to the finished product, are hanging, unit: Tablet means group, fixed installation, including drag-and-hook in, if the carrier is not finished, the main material including drag-and-hook, hook it onto a separate premium. Fixed spread rumours have been included in the door blocking, wire manual hinting valve another performing manual hinting valve installation.

6. high frequency welding finned heatsink: fixed contains shield installation costs, but does not include the value itself.

7. multiple column type steel pipe radiator: can be used for hot water or steam, such as Sen de radiator.

8. radiation, convection radiator installation, regardless of the mount or floor mounted, all perform the same fixed, ground mounted bearing brought by following the main material.

9. light pipe radiator: A-and B-type make install, fixed already included with the material, may not be accepting.

A-b type

10. gas cans and automatic discharge valve: the highest point for hot water heating system, the valve and flying a pipe calculation separately.

11. the heater installation: the install without stent production, a separate chapter XIII, fabrication and installation by device support.

12. the low-temperature radiant floor heating: according to the specifications of the laying of the way points to m. General cannot have fittings, fixed network without thermal insulation in the construction. Fixed already contains ground casting with construction. Use of aluminum-plastic composite pipe, polybutylene pipes, polypropylene pipes, polyethylene pipe pipeline as the floor heating pipe, the implementation of this project.

13. the heating system debugging costs separately calculated and entered the fee.

(8) fire control system

1. the location of decompression orifice: live before the fire hydrant, fire hydrant connector front flange connections, after the fire hydrant to take over the connection. Flange prior calculations.

2. outdoor underground fire hydrant wells implement civil fixed volume 1.

3. gas-driven device for pipeline installation, ferrule connectors of the sales amount of further design drawings.

4.Storage appliance motor bracket prior calculations, the implementation of Chapter 13 of the corresponding item the device supports.

5. the storage of equipment installation, fixed fire-extinguishing agent is already included in the storage containers, system components, safety valve, and other storage devices and valve actuator installation and nitrogen booster. Nitrogen dioxide is not required for the storage of equipment installation, gas booster should be deducted when performing fixed pure nitrogen, other unchanged.

(9) gas pipeline

1. the polyethylene pipe: PE pipes, pipe fittings prior calculations. Connections: small diameter fused; large diameter hot melt.

2. the polyethylene pipe connection, suitable for PVC tees, elbows, jam, reducer, sleeves, etc. all kinds of pipe connection.

3.-plastic transition joints: whether wire, welding, flange connections are performing the same item; if the flange, flange itself, the value of another bolt usage according to design drawings and calculate calculate 3% wastage rate calculation.

4. gas pipeline φ 315 within PE pipe by Chapter 8 gas pipeline, gas wells on the first volume construction fee; φ 315 supplements other than PE pipe, gas well executed project municipal pipe for fee.

(10) a low pressure container

1. assemble the tank includes the manufacture and installation of steel underframe, other devices support both prior calculations.

2. the frequency conversion water supply device: pneumatic tank pressure controller with onboard equipment, pump group if soft joint equipment included in the main member price, otherwise separately calculated.

3. the need for insulation of equipment to perform device insulation fixed item.

4. equipment and room filling generally refers to the second Grouting.

5. making and Grouting anchor bolt: If the device comes with including bolts and Grouting; if the device is not belt, form device fabrication and Grouting anchor bolts.

6. off-site transportation: generally used in conjunction with water tank production. If the installation is finished to contain their costs in.

(11) boiler

1. If a gas boiler, furnace should be boiled and hung furnace fuel conversion of light into gas.

(12) pumps and shock absorption

1. If the pump is not equipped with bolts, another implementation of chapter nine tails bolt production installation.

2. the shock-absorbing plate connection plate pad Foundation

(13) and warm attachment

1. water meter: Thread connection, 1 valve for indoor; flange connection with 2 valve and 1 expansion joints (commonly used for cast iron pipes for water supply, outdoor) when the pipe is not required with expansion joints.

2. heat meter water backflow of water backflow integration hot tables

3. the regulator: 1 pressure reducing valve, 3 cut-off valve, 1 pressure gauge, safety valve, 1

4. trap: 1 trap, three cut-off valve, 1 filter