Industrial Valve Chemical Type Manual Operation Flanged End Fluorine Lined Diaphragm Valve

Product Description

Product Description
FREE-VALVE manual fluorine lined diaphragm valve is a special form of on-off valve, disc is a diaphragm made of corrosion-resistant soft material,the diaphragm separates the bottom body cavity from the top bonnet cavity, so that the stem, metal disc and other parts above the diaphragm are not subject to media corrosion,so fluorine lined diaphragm valve eliminate the packing seal structure, and will not produce media leakage.
Features
The diaphragm of using FEP/FPA/PTFE and rubber composite, suitable for variety of corrosive media. 100% gas seal can be achieved to ensure no leakage in outlet port. No direct contact between metal parts and medium slurry. Bi-directional and full flowing path can reduce pressure drop, weaken abrasion and prolong the service working life. Temperature Range

Lining material	Service temperature,°C	Application medium
NR	-10°C~+85°C	exclusive of strong oxidants:hydrochloric acid, fluorosilicic acid, phenolic acid, 30 percent sulfuric acid, 80 percent phosphoric acid, alkali, salt, gold plating solution, sodium hydroxide, potassium hydroxide, neutral salt aqueous solution, 10 percent sodium hypochlorite, ammonia, most alcohols, organic acids and aldehydes,ect
EPDM	≤120°C	It has the similar acid and alkaline properties of natural glue, and it is very good for low pressure steam, hot water and cold water.
PTFE(F4)	≤180°C	Strong acid, strong base, strong oxidant, organic solvent, etc
FEP(F46)	≤120°C	Any organic solvents or reagents, xi or concentrated inorganic acids, bases, ketones, aromatics, chlorinated hydrocarbons, etc
PFA	≤180°C	Strong acid,strong alkali,Strong oxidant, organic solvent, etc

Main dimensions

DN	DN	PN	L	D	D1	n-∅d
EG41W/J/F46	DN20	PN10	121	105	75	4-∅14
	DN25		131	115	85	4-∅14
	DN32		150	140	100	4-∅18
	DN40		163	150	110	4-∅18
	DN50		194	165	125	4-∅18
	DN65		220	185	145	4-∅18
	DN80		258	200	160	8-∅18
	DN100		309	220	180	8-∅18
	DN125		362	250	210	8-∅18
	DN150		412	285	240	8-∅22
	DN200		529	340	295	8-∅22
	DN250		641	395	350	12-∅22
	DN300		757	445	400	12-∅22
G41FW/J/F46	DN15	PN10	125	95	65	4-∅14
	DN20		135	105	75	4-∅14
	DN25		145	115	85	4-∅14
	DN32		160	140	100	4-∅18
	DN40		180	150	110	4-∅18
	DN50		210	165	125	4-∅18
	DN65		250	185	145	4-∅18
	DN80		300	200	160	8-∅18
	DN100		350	220	180	8-∅18
	DN125		400	250	210	8-∅18
	DN150		460	285	240	8-∅22
	DN200		570	340	295	8-∅22
	DN250		680	395	350	12-∅22
	DN300		790	445	400	12-∅22
	DN350		900	505	460	16-∅22
	DN400		1000	570	515	16-∅26

Note:in the suitable media column, "W" means the body without lined,"J" means the body lined hard rubber,"F46" means the body lined fluorine plastic.
Application
FREE-VALVE's manual fluorine lined diaphragm valves are widely used in chemical industry, medicine and other industrial sectors to achieve the cutting of acid, alkali and other corrosive media in the production process.

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