Search for valves for the working media «Formaldehyde»

For the selected media "Formaldehyde" it's recommended to use the following disk materials: stainless steel with molybdenum CF8M, and the following seats materials: stainless steel with molybdenum CF8M, EPDM, NBR, PTFE. Also in some cases it's allowed to use rather stable materials. As for disks they are: carbon steel WCB, aluminum-bronze, stainless steel CF8, and as for the seats: stainless steel CF8.

Please pay attention to the fact, that the exact case of using valves in the conditions of exact working media is unique each time. Therefore to avoid the potential problems while using the butterfly valves we recommend to turn to the specialists of the PromArm Ltd. first by the phone +7 (8412) 35-07-97 or email info@promarm.ru to confirm all the parameters and get the qualified advise.

You can choose the butterfly valves of PromArm manufacturing from our catalog.

Disk material
Concentration	Ductile iron	Carbon steel	stainless steel CF8	stainless steel CF8M	Aluminum-bronze
Diluted	C	B	-	A	B
35%	-	C	-	A	B
50%	-	B	B	A	B

Seat material
Concentration	EPDM	NBR	CR	Natural rubber	SILICONE	FKM (Viton)	FFKM	PTFE
Diluted	A	A	B	A	A	C	A	A
35%	A	A	B	A	A	C	A	A
50%	B	B	B	B	A	C	A	A

where: A - excellent, B - good, C - not recommended, * - inaccurate data

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