Một số lưu ý khi khớp nối

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1.Khi kết nối giữa 1 ống to với 1 ống khác nhỏ hơn nhất định ta phải dùng côn thu, ví dụ: Để nối ống phi 50 với ống phi 20 ta buộc phải dùng thêm 01 côn thu 50/20. 

2.Khi kết nối phụ kiện có ren Vamber với thiết bị có ren khác ta phải dùng băng tan bằng cao su non quấn vào chỗ ren nối để tránh rò rỉ. 

  *Fusion parts must be free from sand and particles.

  *Welding time and depths must be observed.

  *Do not twist and turn pipes and fittings while inserting and detaching from welding machine.

5.Metal plugs must be used during pressure tests.

6.Pressure test must be conducted BEFORE concealing pipe works.

Product Specification

Materials:

POLYPROPYLENE RANDOM CO-POLYMER (PP-R TYPE 3)
Materials for the pipe and fitting for cold and hot water supply shall be Polypropylene Random Co-polymer (PP-R).
Type 3 which shall comply with the following standards. 

Standards:

DIN 8077  BS 4991
DIN 8078  BS 6920 : Part 2 & 3
DIN 16962  Part 1 to 12

To interface with other fittings, Vesbo PP-R threaded male or female with de-zincification resistance (DZR) brass inserts complying with BS 6920 for use on drinking water. These DZR fittings are injection moulded and threads are of BS parallel and plated with nickel and chrome. All fittings shall be in accordance with the description in the prescribed standards. 

Description and Dimension of Pipes:

APPLICATION:HOT AND COLD WATER
DESCRIPTION:PN 20 (SDR6) PIPE
PRESSURE RATING:20 BAR or 290 p.s.i.
    
APPLICATION:COLD WATER
DESCRIPTION:PN 10 (SDR11)PIPE
PRESSURE RATING:10 BAR or 145 p.s.i


DIMENSION OD (mm)THICKNESS (mm)
20 mm3.4
25 mm4.2
32 mm5.4
40 mm6.7
50 mm8.4
63 mm10.5
75 mm12.5
90 mm15.0
110 mm18.4


DIMENSION OD (mm)THICKNESS (mm)
20 mm1.9
25 mm2.3
32 mm3.0
40 mm3.7
50 mm4.6
63 mm5.8
75 mm6.9
90 mm8.2
110 mm10.0


Fittings:

All Vesbo pipes must be used in conjunction with Vesbo PP-R fittings and Vesbo PP-R fittings with DZR brass inserts. 

Thermal Conductivity:

The thermal conductivity of the pipes and fittings shall not exceed 0.24 W/mK at 20 ºC for water. 

Installation:

Vesbo PP-R pipes and fittings must be installed in accordance will the instructions given by the manufacturer's recommendations and that as stated in:

DN 16928 : Pipes of thermoplastic, pipe fittings, elements of pipes laying

DVS 2207, PART 11 -Welding of thermoplastic materials, PP pipes and fittings

DVS 2208, PART 1 - Machines and equipment for welding of PP 

Pressure Test and Requirements:

Before commissioning of pipe works, procedures and requirements specified by relevant local water authorities must be adhered to. For Pressure test DIN 1988 Part 2 or BS 6700 is used. 

Other Pipe Equivalent


VESBO PIPES O.D.(mm)Equivalence (inches)COPPER TUBES NOM. DIA (mm)
201/215
253/422
32128
401 1/435
501 1/242
63254
752 1/267
90376
1104108


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