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Materials

Abbreviation
Explanation
Use
Abbreviation:

AF

Explanation:

Asbestos-free gasket material

Use:

Gaskets

Abbreviation:

EPDM

Explanation:

Ethylene Propylene Diene M-class rubber, elastomer

Use:

Gaskets, O-rings, diaphragms

Abbreviation:

FPM or FKM

Explanation:

Fluorine Polymer M-class rubber, elastomer, brand name: Viton

Use:

Gaskets, O-rings, radial shaft seals, diaphragms

Abbreviation:

CSM

Explanation:

Chlorosulfonated Polyethylene, elastomer

Use:

Gaskets, shaped items

Abbreviation:

NBR

Explanation:

Acrylonitrile Butadiene Rubber, elastomer

Use:

O-rings, gaskets

Abbreviation:

Hastelloy

Explanation:

Nickel-based alloy

Use:

 

Abbreviation:

IXEF

Explanation:

Polyarylamide, plastic

Use:
Abbreviation:

Monel

Explanation:

Nickel-copper alloy (about 65% Ni, 33% Cu, 2% Fe), very solid

Use:
Abbreviation:

PE

Explanation:

Polyethylene

Use:

Chemical tank

Abbreviation:

PP

Explanation:

Polypropylene, plastic

Use:

Housing parts, pipes

Abbreviation:

PTFE

Explanation:

Polytetrafluoroethylene, plastic, also called Teflon

Use:

Housing parts, diaphragm, gaskets

Abbreviation:

PVC

Explanation:

Polyvinyl chloride, plastic

Use:

Housing parts, pipes

Abbreviation:

PVDF

Explanation:

Polyvinylidene fluoride, plastic

Use:

Housing parts, pipes

Abbreviation:

PMMA

Explanation:

Polymethyl methacrylate, plexiglass

Use:

Housing parts

Connections

Abbreviation
Explanation
Use
Abbreviation:

BSW

Explanation:

British Standard Whitworth screw thread

Use:

The screw thread most commonly used in England

Abbreviation:

BSP

Explanation:

British Standard Pipe

Use:

Pipe thread for connections not sealed in the thread

Abbreviation:

BSPT

Explanation:

Tapered Whitworth pipe thread DIN 2999

Use:

Threaded pipes and fittings

Abbreviation:

NPT

Explanation:

American pipe thread (tapered)

Use:

Self-sealing connections

Abbreviation:

W 1“

Explanation:

BSW thread 1 inch = 25.4 mm 

Use:

Pipe lines

Abbreviation:

G5/8 a

Explanation:

External thread R5/8

Use:

Threaded pipes and fittings

Abbreviation:

G3/4 i

Explanation:

Internal thread Rp3/4

Use:

Threaded pipes and fittings

Abbreviation:

M 10

Explanation:

Metric ISO thread M 10

Use:

Screws, fixings, general application

Abbreviation:

DN10

Explanation:

Nominal width 10

Use:

Pipe lines, valves

Abbreviation:

PN16

Explanation:

Nominal pressure 16

Use:

Pipe lines, valves