 |
|
|
|
|
| |
|
ABS |
|
Acroylonitril Butadiene Syrene |
|
|
|
| |
ASA |
|
American Standards Association |
|
|
|
| |
BSP |
|
British Standard Pipe
(thread) |
|
|
|
| |
CSM |
|
Chlorine Sulphonyl Polyethylene
(e.g. Htpalon) |
|
|
|
| |
CR |
|
Chloroprene Rubber
(e.g. Neoprene) |
|
|
|
| |
DIN |
|
Deutsche Industrie Normen
(German Industrial Standards) |
|
|
|
| |
DN |
|
Nominal Bore of Pipe |
|
|
|
| |
EPDM |
|
Ethlylene Propylene rubber |
|
|
|
| |
FPM |
|
Florine rubber
(e.g. Viton) |
|
|
|
| |
g |
|
Weight in grammes |
|
|
|
| |
GRP |
|
Unsaturated Polyester resin,
glass fibre reinforced |
|
|
|
| |
IIR |
|
Butyl rubber |
|
|
|
| |
ISO |
|
International Standardisation
Organisation |
|
|
|
| |
kg |
|
Weight in Kilogrammes |
|
|
|
| |
NBR |
|
Nitrile rubber |
|
|
|
| |
NP |
|
Nominal Pressure |
|
|
|
| |
NR |
|
Natural rubber |
|
|
|
| |
PE |
|
Polyethylene |
|
|
|
| |
PP |
|
Polypropylene |
|
|
|
| |
PTFE |
|
Polytetrafluoroethylene |
|
|
|
| |
PVDF |
|
Polyvinyliden Floride |
|
|
|
| |
PVC-C |
|
Chlorinated Polyvinyl
Chloride |
|
|
|
| |
PVC-U |
|
Unplasticised Polyvinyl
Chloride |
|
|
|
| |
R |
|
Taper thread |
|
|
|
| |
Rp |
|
Parallel thread |
|
|
|
| |
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
PVC-U
Unplasticised
Polyvinyl Chloride
|
|
Excellent chemical resistance and dielectic properties, good tensile, flexural and mechanical strength, low moisture absorption, excellent dimensional stability and good flammability characteristics. |
|
Resistant to most solutions of acids, alkalis, salts and organic compounds miscible with water. Not resistant to solvents, aromatics and some chlorinated hydrocarbons. Not recommended for compressed air or gases. |
|
+ 60ºC |
|
|
|
|
| |
PVC-C
Post-chlorinated Polyvinyl Chloride |
|
Excellent chemical resistance, good mechanical strength and rigidity, high heat resistance excellent flammability properties (self-extinguishing), low thermal conductivity and good abrasion resistance. |
|
Resistant to many acids, bases, salts paraffinic hydrocarbons, halogens and alcohols. Not resistant to solvents, aromatics and some chlorinated hydrocarbons. |
|
+100ºC |
|
|
|
|
| |
ABS
Acrylonitrile
Butadiene System |
|
Stable over a wide range of temperatures, especially good in cold environments, high impact strength and ducility, good chemical resistance and rigidity |
|
Mostly resistant to solutions of salts, inorganic acids and alkalines. Not resistant to solvents, aromatics and some chlorinated hydrocarbons. |
|
+80ºC |
|
|
|
|
| |
Polypropylene |
|
Has excellent chemical resistance high heat resistance and good mechanical strength. Lightweight, good insulating properties, excellent dielectric strength but poor UV resistance and low impact strength at freezing temperatures. |
|
Very good resistance to chemicals and solvents. Good with aqueous salts, acids or alkaline solutions. Can be attacked by halogens, some acids and oxidizing agents, and by aromatic and chlorinated hydrocarbons at high temperatures. |
|
+100ºC |
|
|
|
|
| |
Polythylene |
|
Tough, excellent chemical resistance and electrical properties, low coefficient of friction, lightweight, very low moisture absorption, excellent flexibility and good in cold envrionments. |
|
Good resistance to acids and caustic substances. Resistant to organic and inorganic solvents at a range of temperatures. Not resistant to strong oxidising acids. |
|
+65ºC |
|
|
|
|
| |
PVDF
Polyvinylidene |
|
Outstanding mechanical, physical and chemical properties, very wide operating temperature range, high impact strength and thermal stability, excellent abrasion resistance, self-extinguishing. |
|
Resistant to most acids, alkalis, salts, halogens, alcohols and chlorinated hydrocarbons. Strong polarizing solvent such as ketones and sters, can cause the material to swell. |
|
+140ºC |
|
|
|
|
| |
PTFE
Polytetrafluoroethylene |
|
Outstanding chemical resistance, lowest dielectric constant and lowest coeffiecient of friction of almost any solid material. Very wide operating temperature range. |
|
Virtually inert to most chemicals and solvents. |
|
+260ºC |
|
|
|
|
| |
EPDM
Ethylene-propylene
Diene Monomer |
|
A terpolymer elastomer with good abrasion and tear resistance, good resistance to a variety of acids and alkalis. |
|
Resistant to many solutions of acids, alkalis, salts and organic compounds miscible with water. Good for use with caustic soda. Not recommended for petroleum oils, strong acids or strong alkalis. |
|
+100ºC |
|
|
|
|
| |
FPM
Fluorine rubber
|
|
A fluoroelastimer with good abrasion and tear resistnace, excellent resistance to a variety of acids, alkalis and petroleum oils. |
|
Resistant to most solutions of acids, alkalis, salts and organic compounds. Good for use with petroleum oils. Not recommended for use with caustic soda. |
|
+150ºC |
|
| |
|
|
|
|
|
|
|
|