Joints, fittings, and specifically piping PP tape

Item

Parameter

Standards to follow

Base membrane material

PP mesh reinforced woven fiber

PRC Petroleum/Natural gas industrial standard      

SY/T0414-2007

Steel piping PP adhesive tape

Standard for corrosion layer technology

PRC

Construction industrial standard Urban Gas Piping Corrosion Prevention Control Specification

American National Standard Association

American Hydraulic Society Standard ANSI/AWWA C209-00

National Association of Corrosion

Engineers standard

NACE MR0274-95

Base membrane color

Black

Base membrane thickness

0.30±0.05mm

Composition of corrosion layer

butyl rubber improved asphalt

Tape integral thickness spec

1.1-1.8mm

Base membrane extension strength

≥60Mpa

Peeling strength to painted steel

≥45N/cm

Peeling strength to back strap

≥25N/cm

Insulation voltage

≥15KV

Bulk resistance rate (Ω · m)

≥1×10¹²

Water absorption rate (%)

≤0.2

Vapor infiltration rate (mg/24/h.cm2)

≤0.45

Fungus resistance

Good

Bacterial resistance

Good

Each tape length

20 or 25m

Tape width

50,75,100,150,200,300 and 350mm

Storage temp.

-20°C-+35°C

Operation temp.

-5°C-+50°C

Use temp.

-34°C-+75°C