Zhejiang DINAI Plastic Pipe Valve Co., Ltd

Performance

CPVC Outline

1.CPVC(Chlorinated polyvinyl chloride) has become an extremely important plastics materials in the engineering, it has a lot of merits such as relatively low cost, high hard embrittlement temperature (Tg), high thermal bending temperature, abtuse(inactive) chemical properties, excellent mechanical strength, no electric conductivity, safest conductibility and smokiness of combustion.
2.The commercialized production and application of CPVC was initiated by BF Goodrich Corporation in nearly 1960, CPVC has received very high appraise in various industrial application for its high-temperature resistance and perfect chemical resistance.
3.In the concept, CPVC is made from PVC Homopolymer through chloridization, while in the models, PVC and chlorine take actions, according to the reaction mechanism of free basic radicals, where can be started up with varied methods like heating and UV power, a common reaction process on the chloridization of free PVC radicals is described as below, where RH refers to PVC.
4.The status and reaction capacity(chlorine) of CPVC have vast difference by the different modes of chloridization. Compared with 63~69% as per general CPVC, the chlorine content of basic PVC of this CPVC has been upgraded from 56.7% to 74%. Thanking to the increase of the chlorine content, the hard embrittlement temperature of polymer(Tg) will be greatly boosted, due to the increase of molecule weight of basic PVC, Tg under same content will be also a little upgraded.
CPVC Product uses the standard

CPVC Series Standard Pipe Materials is produced as per GB/T18993.2-2003、GB/T18993.3-2003、GB/T18998，Vicat Softening Temperature as per GB/T88022-2001、Dart Drop Impcat Test as per GB/T14152-2001，the other according to ASTMF441、F439、F437，as well as DIN8079、DIN8080、ISO15493-1.
CPVC tubing, fitting, valve performance characteristic

Excellent strength and tenacity
Excellent chemical and corrosive resistance
Wide operating temperature range: -45℃ to95℃
Self-extinguishing character in flame retardant property
Low thermal conductivity, about 1/200 of steel materials
The heavy ion of medium can meet the requirements as ultra pure water.
Sanitary Indexes accord with National Sanitary Standards.
Due to lean and smooth pipe wall, it has small friction and adhesive for when transmitting fluids.
Light weight, equal to 1/5 of steel pipe and 1/6 of copper pipe
Easy to install, can be connected by cementing, screwing and welding etc
Outstanding ageing resistance and anti-ultraviolet property, its service life is greatly prolonged compared with normal one.

CPVC Piping system compares with other piping system overall performance

CPVC Performance Introduction

Mechanic properties	Unit	Material name
Mechanic properties	Unit	CPVC	PP	ABS	PVDF	PVC	FRP-VE
Proportion	g/cm²	1.55	0.92	1.06	1.78	1.38	1.85
Draw and pull intension	Mpat(23℃)	55.2	34.5	38	48	49	303
Stand shocking intensio	KJ/M²	15	13	18.2	22	14	160
Thermal properties
Line expande coefficient	10m/m℃	3.4	5	5.6	8	2.8	1.05
Heating distorsion temperature	℃	105	90	77	150	74	238
Thermal conducticity	BTU/hr/ft2/℉	0.95	1.4	1.7	131	1.3	1.3
Application temperature upper limit	℃	95	82	65	140	60	121