PVC-U electrical insulation conduits and fitting in buildings
- Ref Price:
-
- Loading Port:
- Qingdao
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 500 m
- Supply Capability:
- 5000 m/month
OKorder Service Pledge
OKorder Financial Service
You Might Also Like
Specification
PVC-U eletctrical conduits is made of polyvinyl chloride resion,adding special additivies to be produced by extrusion and injection.PVC-U conduits are mainly used as electrical, communications cable casing.Standard implementation is JG3050-1998 specification for electrical insulation conduits and fitting in buildings
◆ PVC electical conduits is widely used in concrete of construction、floor and wall as wire conduits (underground conduits);gennerally as wiring conduits ,telecommunications and network cabling conduits.
◆ Compared with traditional steel wire ,PVC electrical conduits has characteristics:
◎ Hight resistance to pressure:PVC conduits can stand about 750N pressure and can be externally installed or buried in concrete avoiding any damage caused by pressure.
◎ PVC conduit is moisture proof and has excellent resistance to acid, alkali and rust-eaten.
◎ Flame retardant: PVC insulating electric engineering casing can be self extinguished when kept away from fire (it can be self-extinguished after leaving off flame for 30s), so fire can't be spreaded along the pipe.
◎ It is insulated. In soaking condition, PVC conduit will not be broken down by the electricity of AC2000V, 50Hz. In aspect of avoiding electric shock, international tendency is that insulation is preferred to earth connection. PVC insulation electrical conduit meets this requirement.
◎ Easy installation. The conduit less than de32mm can be easily cut off by pipe cutter. Inserting relevant special spring into conduit, it can be bent into needed angle under normal temperature. Pipeline meeting the construction shape will be formed to connect conduits with PVC adhesive.
◎ Saving investment:compared with steel tube,construction costs of PVC conduits can be greatly reduced in material and installation.
Specification of PVC electrical conduits
| Nominal Size（mm） | Outside diameter（mm） | Mean outside diameter （mm） | Minimum inner diameter（mm） | （mm） Minimum wall thickness of rigid conduit | Metric thread | Conduit lenth L(M) | ||
| Rigid conduit | Felxible and threaded conduit | Rigid conduit | Felxible and threaded conduit | |||||
| 16 | 16 | -0.3 | 12.2 | 10.7 | 1.0 | M16*1.5 | 4+0.005 Base on transportation and engineering requirements | 25-100 |
| 20 | 20 | -0.3 | 15.8 | 14.1 | 1.1 | M20*1.5 | ||
| 25 | 25 | -0.3 | 20.6 | 18.3 | 1.3 | M25*1.5 | ||
| 32 | 32 | -0.3 | 26.6 | 24.3 | 1.5 | M32*1.5 | ||
| 40 | 40 | -0.3 | 34.4 | 31.2 | 1.9 | M40*1.5 | ||
| 50 | 50 | -0.3 | 43.2 | 39.6 | 2.2 | M50*1.5 | ||
| 65 | 63 | -0.3 | 57.0 | 52.6 | 2.7 | M63.1.5 | ||
| Item | Rigid conduit | Felxible and threaded conduit | parts | ||
| Appearance | smooth -（0.1+0.1A）≤ΔA≤0.1﹢0.25 | smooth -（0.1+0.1A）≤ΔA≤0.1﹢0.25 | Smooth ,no crack | ||
| Maximum outside diameter | Pass by gauge weight | / | |||
| Minimum outerside diameter | Pass by gauge weight | / | |||
| Minimum inner diameter | Pass by gauge weight | inner diameter not less than 10.7mm | / | ||
| Minimum wall thickness | Wall thickness not less than 1.0mm | / | |||
| Compression test | Loaded in 1min，Dt ≤25% Unloaded in 1min，Dt ≤10% | Loaded in 1min，Dt ≤10% | / | ||
| Impact test | At least 10 pcs is not bad ,no crack in 12 specimens | / | |||
| Bending test | No visible crack | no visible cracks, Pass by gauge weight | / | ||
| Flat lets | Pass by gauge weight | / | |||
| Drop strength | no broken ,no shattered | no broken ,no shattered | |||
| Heat resistance | Di≤2mm | gauge by weight | Di≤2mm | ||
| Flame retardant test | self-extinguished time | Te≤30s | Te≤30s | ||
| Oxygen Index | OI≥32 | OI≥27 | OI≥32 | ||
| Electrical performance | no breakdown within 15min R≥100MΩ | no breakdown within 15min R≥100MΩ | |||
- Q:How do the rubber tubes fit into the galvanized pipe?
- The inner diameter and outer diameter of the galvanized pipe must be determined.
- Q:The use of anti slip rubber joints under what circumstances?
- The appropriate model must be selected according to the working pressure, connection mode, medium and compensation amount of the pipeline, and the quantity is chosen according to the requirements of noise reduction displacement.
- Q:There are several ways to connect the built-in rubber stop
- Is the cold adhesive rubber zhishuidai special cold glue, overlapped by the waterstop joints with grinder grinding section to 5~10 cm, glue can be compacted, has high strength, fast solidification has the advantages of convenient, time-saving, can meet the general engineering quality requirements.
- Q:The engine cylinder head cover behind the drop rubber tube what reason (Xichai 490 engine) (note the valve chamber cover tube)
- You don't know how to repair the craft, experienced by the feeling on the line, strictly speaking, is the valve clearance feeler to grasp, generally 125, 150 valve clearance at around 0.025-0.030, the exhaust valve to the inlet valve a little bigger than. Your car is too loud. Do you think the cam or valve is too big to wear? You have to go to an experienced garage to repair it.
- Q:What is the method of making large diameter rubber joint?
- Method for making large caliber rubber parts:Mold making: external shell, internal steam box, steam, internal core, hydraulic cylinder do support (two years earlier, with Jack) and high strength rubber cord wrapped into the mould, after high-temperature steam curing, eventually forming.
- Q:What is the essential difference between silicone tube and rubber tube?
- Silicone tube 100% non-toxic, tasteless, fine silk, silicone silicone tube (article), high pressure resistant silicone tube, silicone tube, gear shaped sealing strip, shaped article, food grade (non-toxic) silicone tube (article), medical silicone tube, silicone tube, silicone tube medicinal woven (used for conveying working pressure, liquid food, pharmaceutical and biological products. ) medical silicone pipe joint, silica gel sealing tube, flame retardant tube (strip), silica gel foamed pipe (strip), high temperature resistant silicon rubber tube, performance: cold resistance, high temperature resistance. Harmless non-toxic and tasteless; suitable for small household appliances (coffee pot, kettle, electric iron, electric cooker, frying pan, disinfection cabinet, drinking machine, pulp machine, bread machine, gas cooker, water heater) and electronic, automobile, medical and other mechanical products.
- Q:What are the production processes and characteristics of high pressure rubber hose?
- Production flow chart of high pressure steel wire braided hose:High voltage wire winding production process: rubber hose, pipe extrusion, boiled casing (core wipe silicone oil), wrapped around the screen (screen on the casing after finishing cutting winding), a layer of glue, the first layer of steel wire winding, two winding layer of glue, second layers of wire, third in the layer of glue, third layers of wire winding layer, fourth layer, fourth layer winding wire, package cover, water roll of cloth, cloth, water solution of vulcanization, mandrel stripping, a hydraulic, appearance and dimension inspection and packaging storage.
- Q:In long-term high temperature environment, silica gel tube and three yuan ethylene propylene rubber hose which is good durability?
- Silicone hose is relatively soft, flexible, and looks better than other rubber tube gloss, color is mostly red, blue, translucent and other colors.
- Q:What are the categories of hose?
- According to the use of performance: ordinary hose (cloth water hose, air hose, braided hose, air hose braided fiber, fiber winding hose, fiber winding air hose (hose); medium resistance oil resistance, acid and alkali resistant hose, steam hose etc.); special hose (hydraulic hose, brake hose drilling mud, hose, spray hose, hose extrusion etc.) Hengshui Yajie rubber.
- Q:What are the matters that should be paid attention to when installing rubber hose joint in water pump?
- Know the rubber pipe joint is also called rubber joints, with vibration and noise reduction effect in the pipeline, and if used in water pump, so its main function is to prevent the suction flat and bear short time pressure, avoid water pump power and vibration and suction pipe bottom swing, the uniform flow and promotion in addition, the pump power consumption is reduced, because the rubber joint wall vertical groove, and prevent the vortex pump water, thereby improving the efficiency of water pump.
1. Manufacturer Overview |
|
|---|---|
| Location | |
| Year Established | |
| Annual Output Value | |
| Main Markets | |
| Company Certifications | |
2. Manufacturer Certificates |
|
|---|---|
| a) Certification Name | |
| Range | |
| Reference | |
| Validity Period | |
3. Manufacturer Capability |
|
|---|---|
| a)Trade Capacity | |
| Nearest Port | |
| Export Percentage | |
| No.of Employees in Trade Department | |
| Language Spoken: | |
| b)Factory Information | |
| Factory Size: | |
| No. of Production Lines | |
| Contract Manufacturing | |
| Product Price Range | |
Send your message to us
PVC-U electrical insulation conduits and fitting in buildings
- Ref Price:
-
- Loading Port:
- Qingdao
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 500 m
- Supply Capability:
- 5000 m/month
OKorder Service Pledge
OKorder Financial Service
Similar products
Hot products
Hot Searches
Related keywords
