09
Saunders Environmental Protection
Hard Rubber – NR/HRL
Used for salts in water, dilute mineral acids,
chlorine water, de-ionised water, plating
solutions and potable water.
Soft Butyl Rubber – IIR/BL
Good for corrosive and abrasive slurries,
mineral acids and acidic slurries.
Glass
Used inmulti-process chemical plants on
acids and solvents.
Polypropylene – PP
Main applications include mineral acids,
salts in water, water and effluent treatment
chemicals.
Ethylene tetrafluoroethylene – ETFE
Suitable for strong acids, salts in water at
higher temperatures, solvents at medium
temperature.
Perfluoroalkoxy – PFA
Most suitable for concentratedmineral
acids at high temperature, aromatic,
aliphatic and chlorinated solvents.
Polytetrafluoroethylene – PTFE
Most suitable for concentratedmineral
acids at high temperature, aromatic,
aliphatic and chlorinated solvents.
Soft Natural Rubber - AA/SRL
High abrasion resistance.
Suitable for use on powders, abrasive
slurries, clays, coal dust, dry fertilizer,
gypsum.
Neoprene – NRL
Particularly suitable for animal, vegetable,
fatty oils and greases. Abrasion resistance
over wide pH range –used for aggressive
slurries.
ValveBodyLiningMaterials–Visual ProcessResistanceGuide
A B R A S I O N R E S I S TA N C E
High
CORROS I ON / CH EM I CA L R E S I S TANC E
High
ValveBody Linings for Saunders Valves
PTFE/PFA
ETFE
HRL
PP
Butyl
Neoprene
Glass
AANatural
Saunders environmental protective coating has been
developed specifically to provide unrivalled corrosive
resistance in the industrial processing industry, the new
protective coating utilises Du Pont’s Tefzel™
(Ethylenetetraflouroethylene) material.
The green Tefzel™ coating is applied before the injection
moulding of the Perfluoroalkoxy (PFA) or
Ethylenetetraflourorethylene (ETFE) lining, using an
electrostatic powder coatingmethod. By coating the valve
body, bonnet and hand wheel, both internal and external
corrosive protection is maximised providing peace of mind in
extreme corrosive material processing applications.
Available in DN 20-100 with a PFA lining and DN 20 – 150 in
the ETFE lined option.
