Ultimate Solution for Hot & Cold Water Application
Pipes are manufactured in Copper Tube size [CTS] from ½ “to 2” with two different standard dimensional rations SDR-11 and SDR-13.5 are made from CPVC compound. Pipe & fittings are produced as per SDR-11 meet the requirement of ASTM D 2846 where as the pipes with SDR-13.5 meet the requirement derived from ASTM F 442, specific to CPVC in Iron Pipe Size (IPS) dimension, which can also be applied to CPVC pipes in CTS dimension.
Apart from having the same physical properties, SDR-11 and SDR-13.5 have different wall thickness and therefore, at any given temperature, have different pressure rating.
Certification (BIS)-IS: 15778
IS No: IS 15778: 2007
Type/Size/Grade/Variety covered under licence: Class 1 (SDR-11), DN 15 mm to 50 mm Class-2 (SDR 13.5), DN 15 mm to 50 mm
Pipe should be clamped in such a way that it should not be anchored rigidly to a support but rather be secured with broad, smooth hangers providing for a degree of movement to take care of thermal expansion & excessive buckling. Spacing of such clamps depends on the temperature of a conveyed medium and diameter of conduit.
5) Consumption of Solvent Cement-No’s of Joints per Liter
CONSUMPTION OF SOLVENT CEMENT
NO. OF JOINTS/LITER
6) Jointing Methods:
CUT THE PIPE SQUARE
CHECK FOR DRY INTERFERENCE FIT OCCUR ABOUT 1/3rd TO 2/3rd OF SOCKET DEPTH.
CLEAN BOTH PIPE END & FITTING SOCKET WITH A RECOMONDED CPVC CLEANER OR BY LIGHT SANDING OR BOTH.
APPLY A LIBERAL COAT OF CPVC SOLVENT CEMENT TO THE PIPE AND APPLY A LIGHT COAT OF CEMENT TO THE FITTING SOCKET.
ASSEMBLE IMMEDIATELY (10 TO 20 SECONDS) BY BOTTOMING THE PIPE IN THE SOCKET AND ROTATING A QUARTER TURN AS THE JOINT IS ASSEMBLED.
REMOVE EXCESS CEMENT FROM THE JOINT. IF A JOINT HAS BEEN PROPERLY MADE, A SMALL BEAD OF CEMENT WILL ALWAYS APPEAR AT THE JUNCTURE BETWEEN PIPE AND THE FITTING.
MINIMUM CURE TIME FOR JOINTS TO APPLY PRESSURE----1/2” TO 1”=2 HRS & 1.1/4” TO 2”=4HRS.