Manual Fire Protection Butterfly Valve

The manual fire protection butterfly valve is a normally closed valve. Its function is: when the temperature of the flue gas reaches 280 °C, the person has basically evacuated, and the exhaust has no practical meaning, and the smoke has been fired at this time, and the valve is automatically Close to avoid the spread of fire. The exhaust fumes of the system can also be used to eliminate the smoke exhaust fire damper on the branch pipe by using the normally closed fire exhaust vent.

Product Details

Quick Details
Standard or Nonstandard:	Standard
Structure:	Clamp
Pressure:	0-1.6/2.5Mpa, 0-1.6/2.5Mpa
Power:	Manual
Material:	Cast iron, Cast steel, Stainless Steel
Temperature of Media:	10-80℃
Media:	Water, Oil, Gas
Port Size:	DN40/50/65/80/100/125/150
Place of Origin:	China (Mainland)
Model Number:	D71F-10
Brand Name:	EO
Application:	Sewage, Oil, Chemical engineering, Sewage, Oil, Chemical engineering
Product name:	Manual Fire Protection Butterfly Valve
Valve body material:	Ductile iron; Stainless steel; Can be customized
Valve disc material:	Nickel plating, Polyamide, Can be customized
Sealing ring material:	EPDM, PTFE
Operational temperature:	10-80℃
Dimension:	DN40/50/65/80/100/125/150
Medium:	Water, Oil, Gas
OEM:	Yes

Manual fire protection butterfly valve is the advanced performance for the butterfly valve, the simple structure, The fluid flow,light weight, easy installation and low driving torque, can be use for cut off medium or regulated flow. The motivation can be according to the customer request,we have the handle, pneumatic and electrically operated valve, the difference situation will be match the different material according the function.

Model	D71X-16	D71XN-16	D71XP-16	D71F-10	D71FP-10	D71XP-16P	D71FP-10P
Valve body	Ductile iron					Stainless steel
Valve disc	Nickel plating	Polyamide	Stainless steel	Nickel plating	Stainless steel
Sealing ring	EPDM	EPDM	EPDM	PTFE	PTFE	EPDM	PTFE
Operational temperature	10-80℃	10-80℃	10-80℃	10-120℃	10-120℃	10-80℃	10-120℃
Pressure	0-1.6/2.5Mpa			0-1.0Mpa		0-1.6/2.5Mpa
Application	Sewage, Oil, Chemical engineering
Dimension	DN40/50/65/80/100/125/150
Medium	Water, Oil, Gas

DN(mm)	Connection size
DN(mm)	A	L	H1	H	ΦD1	ΦD	4--Φd
DN40	172	34	65	183	89	110	4--20
DN50	172	42	70	195	97	125	4--20
DN65	172	45	72	211	112	145	4--20
DN80	172	45	90	219	127	160	4--20
DN100	201	52	108	244	160	180	4--23
DN125	262	55	120	272	188	210	4--23
DN150	262	56	134	290	216	240	4--23

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