Materials Used for Plastic Strainers and Bag Filter Housings

 

PVC (Polyvinyl Chloride)
Used for chemical processing, industrial plating, chilled water, deionized water lines, chemical drainage, DWV piping and irrigation systems, PVC is generally inert to most mineral acids, bases, salts and paraffinic hydrocarbon solutions. PVC is not recommended for use with chlorinated or aromatic hydrocarbons, esters or ketones. PVC has excellent weatherability. The maximum recommended working temperature of PVC is 140°F. PVC products can be installed using solvent cement, threaded or flanged end connections.

CPVC (Chlorinated Polyvinyl Chloride)
CPVC is generally inert to most mineral acids, bases, salts and paraffinic hydrocarbon solutions and is not recommended for use with chlorinated or aromatic hydrocarbons, esters or ketones. The maximum working temperature for Hayward products made of CPVC is 190°F at 60 PSI. It has been proven an excellent material for hot corrosive liquids and hot and cold water distribution. CPVC products can be installed using solvent cement, threaded or flanged end connections.

GFPP (glass filled Polypropylene)
GFPP is a lightweight material with generally high resistance to chemical attack. It has a higher long-term temperature resistance than PVC and CPVC and is used for applications involving chemical processing, industrial plating, chilled water, deionized water lines, chemical drainage, DWV piping and irrigation systems. GFPP is generally inert to most mineral acids, bases, salts and hydrocarbon solutions. The maximum recommended working temperature of GFPP is 250°F. GFPP products can be installed using threaded or flanged end connections.

PP (Polypropylene)
PP is a member of the polyolefin family of pure hydrocarbon plastics. Even though PP has half the strength of PVC and CPVC, it has the most versatile chemical resistance of our other thermoplastic materials. PP is superior for concentrated acetic acid or hydroxides and also suitable for milder solutions of most acids, alkalis, salts and many organic chemicals, including solvents. However, PP is not compatible with strong oxidizers, such as the hypochlorites and higher concentrations of sulfuric, nitric and hydrofluoric acids. The maximum recommended working temperature of PP is 200°F. PP products can be installed using fusion weld, threaded or flanged connections.

EASTAR^®
Eastar is a clear polyester thermoplastic compound having excellent impact strength, chemical resistance and high clarity. It is used in a variety of applications such as chemical processing and ultra-pure industries.

EPDM (Ethylene Propylene Diene Monomer)
EPDM rubber is an elastomer prepared from ethylene and propylene compounds. It has been used continuously to a temperature of 300°F. The material is recommended for water, steam, dilute acids, dilute alkalis and alcohols. EPDM is not recommended for petroleum oils or diester lubricants.

FPM or FKM (Fluorocarbon Rubber)
The fluorocarbon elastomers have a maximum service temperature of 400°F. Fluorocarbon materials are recommended for petroleum oils, diester base lubricants, silicate fluids and greases, halogenated hydrocarbons, acids and vacuum environments. Fluorocarbon materials are not recommended for ketones, amines, anhydrous ammonia, hot hydrofluoric or chlorosulfonic acids.