1/2-1″ PN25 Brass Insert Male Thread Seated Elbow All Types Of PPR Pipe Fittings

1/2-1″ PN25 Brass Insert Male Thread Seated Elbow All Types Of PPR Pipe Fittings

specification：

PPR pipe specifications are expressed by pipe series S, nominal outside diameter dn× nominal wall thickness en
Example: PPR tube series S5, PPR nominal outer diameter dn25mm, PPR nominal wall thickness en2.5mm
Indicates S5, dn25× EN 2.5mm
PPR pipe series S: is a dimensionless numerical series used to represent the ppr pipe specifications, and has the following relation S= (dn-en) / 2 en
Where: dn — PPR nominal diameter (outer diameter), unit: mm
en — PPR nominal wall thickness, unit: mm
Commonly used PP-R tube specifications are 5, 4, 3.2, 2.5, 2 five series
PPR pipe specifications according to the standard size rate SDR value is divided into 11, 9, 7.4, 6, 5 five series.
PPR standard size rate SDR: is the ratio of the nominal outside diameter dn of PPR pipe to the nominal wall thickness en.
The relationship between SDR and PPR tube series is as follows: SDR=2S+1
PPR pipe fitting specification expression method:
PPR pipe fitting Nominal Outside diameter dn Indicates the nominal outside diameter of the PPR pipe connected to the PPR pipe fitting. The wall thickness of the PPR pipe fitting shall be no less than that of the PPR pipe of the same PPR series S.
Most enterprise PPR pipe fittings only have the highest standard S2 series, hot and cold water all applicable
PPR Tube Specification S5 Series ————–1.25 MPA (12.5 kg)
PPR Tube Specification S4 Series ————–1.6 mpa (16 kg)
PPR Tube Specification S3.2 Series ————2.0 mpa (20kg)
PPR Tube Specification S2.5 Series ————–2.5 mpa (25 kg)