Plastic Diaphragm valve orrosion performance table

A:No erosion (good use)
B:Roughly not corroded (can be used)
C:Danger (use depending on the situation)
X:Erosion (unusable)
1、This table is arranged in English letters of the medium.
2、The data in this table is tested by chemical impregnation for 90 days and is for user reference only. Changes in pressure and temperature should be considered when designing, and cannot be used as an operating basis for using this product.

English abbreviation	Working temperature
PVDF	—40℃~140℃
UPVC	—14℃~70℃
CPVC	—20℃~95℃
PTFE	280℃
FPM	180℃
EPDM	120℃

Chemicals	Density	Temperature	PVDF	UPVC	CPVC	PTFE	FPM	EPDM
Alcohol, acetol (aqueous)	40	20	×	×	×	A	B	A
		40				A	B	A
		60				A	C	A
		80				A	×	B
		100				A		C
Acetic acid	50	20	A	A	A	A	B	×
		40	A	B	B	A	B
		60	A	C	C	A	B
		80	B		×	A	C
		100	B			A	×
(Aqueous) propanol	Trace	20	A	A	A	A	A	A
		40	A	A	A	A	A	A
		60	A	B	B	A	A	A
		80	B			A	A	B
		100	B			A	A	B
Acetylene calcium carbide	Saturation	20	A	×	×	A	A	C
		40	A			A	A	C
		60	A			A	A	×
		80	A			A	A
		100	A			A	B
(Acrylic) Acetate		20	A	×		A
		40	B			A
		60	C			A
		80	×			B
		100
(Aqueous) oxalic acid		20	A	A	A	A	A	A
		40	A	A	A	A	A	A
		60	A	A	A	A	A	A
		80	A		B	A	A	B
		100	A			A	B	B
Aluminum	Saturation	20	A			A	A	A
		40	A			A	A	A
		60	A			A	A	A
		80	A			A	A
		100	A			A
Aluminum Chloride	Saturation	20	A	A	A	A	A	A
		40	A	A	A	A	A	A
		60	B	B	B	A	A	A
		80	C		B	A	A	A
		100	×			A	A	B
Aluminum Chloride	Saturation	20	A	A	A	A	A	A
		40	A	A	A	A	A	A
		60	A	A	A	A	A	A
		80	A		A	A	A	A
		100	A			A	A
Aluminum hydroxide	Saturation	20	A	A	A	A	A	A
		40	A	A	A	A	A	A
		60	A	A	A	A	A	A
		80	A		A	A	A	B
		100	A			A	B	B
Aluminum nitrate	Saturation	20	A	A	A	A	A	A
		40	A	A	A	A	A	A
		60	A	A	A	A	A	A
		80	A		A	A	A	A
		100	A			A	A	B
Ammonium sulfate	Saturation	20	A	A	A	A	A	A
		40	A	A	A	A	A	A
		60	A	A	A	A	A	A
		80	A		A	A
		100	A			A

Chemicals	Density	Temperature	PVDF	UPVC	CPVC	PTFE	FPM	EPDM
Succinic acid	Saturation	20	A	A	A	A	A	A
		40	A	A	A	A	A	A
		60	A	A	A	A	A	A
		80	A			A	A	A
		100	A			A	A	A
Oxygen	10	20	A	A	A	A	B	A
		40	A	A	A	A	C	A
		60	A	A	A	A	×	A
		80	A		B	A		A
		100	A			A		A
Ammonium acetate (ammonium acetate)	Saturation	20		A	A	A	A	A
		40		A	A	A	A	A
		60		A	A	A	A	A
		80			B	A	B	B
		100				A	B	B
Ammonium Carbonate	Saturation	20	A	A	A	A	A	A
		40	A	A	A	A	A	A
		60	A	A	A	A	A	A
		80	A		A	A	A	A
		100	A			A	A	B
Ammonium Chloride	Saturation	20	A	A	A	A	A	A
		40	A	A	A	A	A	A
		60	A	A	A	A	A	A
		80	A		B	A	A	A
		100	A			A	A	B
Ammonium Chloride	Saturation	20	A	A		A	A	A
		40	A	B		A	A	A
		60	A	×		A	A	A
		80	A			A
		100	A			A
Ammonium hydroxide		20	A	A	A	A	B	A
		40	A	A	A	A	B	A
		60	A	A	A	A	C	A
		80	A			A
		100	A			A
Ammonium Metaphosphate		20	A	A	A	A	A	A
		40	A	A	A	A	A	A
		60	A		A	A	A	A
		80	A			A	A	A
		100	A			A
Ammonium Phosphate		20	A	A	A	A	A	A
		40	A	A	A	A	A	A
		60	A	A	A	A	A	A
		80	A		A	A	A	A
		100	A			A
Ammonium Sulfate	Saturation	20	A	A	A	A	A	A
		40	A	A	A	A	A	A
		60	A	A	A	A	A	A
		80	A	A	A	A	A	A
		100	A	A	A	A	A	A
Ammonium Sulfate	Saturation	20	A	A	A	A
		40	A
		60	A
		80	A
		100	A
Ammonium trichloride	Saturation	20	A	A	A	A	A	B
		40	B	B	A	A	A
		60	C	A	A	B	A
		80	C		A	B	B
		100	×			B