Valve Linings

Some examples of valve linings and applications:

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 corriosive and abrasive slurries, mineral acids

acidic slurries

Glass

Used in multi process chemical plants on acids and

solvents

Polypropylene-PP

Main applications include minerial acids, salts in water,

water and effluent treatment chamicals

Ethylene tetrafluoroethylene

Suitable for strong acids, salts in water at higher temp

ETFE

solvents at medium temp

Perfluoroalkoxy -PFA

Most suitable for concentrated mineral acids at high

temps, aromatic,aliphatic and chlorinated solvents

Poltetrafluorothylene-PTFE

Most suitaable for concentrated mineral acids at

higher temps, aromatic,aliphatic and chlorinated solvents

Soft natural rubber-AA/SRL

High abrasion resistance, suitable for use on

powers, abrasive sluuries, clays, coal dust, dry fertilizer

gypsum

Neoprene -NRL

Particulary suitable for animal,vegetable, fatty oils

and greases, abrasion resistance, over wide PH range

used for aggressive slurries

Plastic lined body features :	sg body high mechanical strengh
	sg body mechanically supports plastic lining
	lining protected from ultraviolet(UV)
	injection gate to side of weir flange means:
	smooth weir for diaphrapm sealing and zero leakage
	lining lock on weir flange and iin bore inlet
	lining thickness range 3-5mm DN20-DN150

Rubber lined body features:	soft rubber lining
	butyl (isobutylene) 60-66oc IRHC
	hard ebonite rubber HRL 75-85oc Shore D
	Lining thickness range 2 - 4.5mm DN20 -DN350


Valve body production tests	all saunders lined valves have weach body iindividually
	tested for lining integrity:
	glass lining-spark test 10Kv ac
	rubber,butyl-spark test 14kv ac\dc
	rubber HRL spark test 17kv ac\dc
	plastic spark test 20kv ac\dc

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