Hxf1 Bidirectional Fire Stop Breathing Valve

• Media: Water
• Standard: Water Vapour Oil
• Certification: CCC, RoHS, ISO, CE
• Temperature: High Temperature
• Connection: Flange
• Valve Seat: Double-Seat
• Model NO.: HXF1
• Structure: Piston
• Material: Cast Iron
• Transport Package: Wooden Box
• Specification: DN15-DN800
• Trademark: XC
• Origin: China
• HS Code: 8421219990
• Production Capacity: 9999

Product Description

HXF-1 Bidirectional Fire resistance Breathing valve Product Overview:
Bidirectional fire block breathing valve, also known as BLF1 double nozzle fire block breathing valve, bidirectional fire block breathing valve is an improved replacement product on the basis of ordinary all-weather breathing valve, with dual functions of flame arrester and breathing valve, using double nozzle structure, with large ventilation volume, small leakage, corrosion resistance and other characteristics, is the ideal ventilation equipment on the fixed roof storage tank.
The working principle of HXF-1 bidirectional fire resistance breathing valve:
The bidirectional fire resistance breathing valve is installed on the top of the storage tank, which is to solve the positive pressure and negative pressure of the gas in the tank, so that the liquid in the tank is not hindered, and when the external liquid is input into the tank, a large number of gas is called out (called positive pressure). If the liquid in the tank is exported, the tank should be sucked into the tank from the outside air (called negative pressure). If the breathing valve is automatically closed when it stops working, it will not leak the liquid gas in the tank outwards, so that the liquid quality in the tank has been favorable protection. The breathing valve is used on the oil and liquid tank to exclude the positive pressure and negative pressure gas in the tank, so that the liquid in the tank is convenient to enter and exit. If the tank is not equipped with the breathing valve, there are some obstacles in the liquid entry and exit of the tank, it is likely to appear tank deformation and vibration, the product design is reasonable, simple structure, easy to use; It is the ideal product for storage tank.
Structure diagram:



Specification material parameters

Body material	WCB, 304, 316, aluminum alloy
Positive pressure valve disc material	304, 316, aluminum alloy
Negative pressure valve disc material	304, 316, tetrafluoroPTFE
Ambient temperature ° C	- 30 ~ 60

 

Grades	Operating pressure
Level a	+355Pa (36mm water column) -295Pa (30mm water column)
Grade B	+980Pa (100mm water column) -295Pa (30mm water column)
Grade C	1765Pa(180mm water column) -295Pa (30mm water column)

 

Specifications	Mounting dimensions (mm)
	D1	D	D3	H	M-h
DN25	70	100	115	180	4 x 10
DN50	110	140	160	255	4 x 12
DN80	150	185	213	260	4 x 16
DN100	170	205	265	290	4 x 16
DN150	225	260	305	330	8 x 16
DN200	280	315	355	350	8 x 16
DN250	335	370	420	400	12 x 16

Bidirectional breather valve American standard flange size: ANSI, API, ASME available to JIS standards

Specifications	Mounting dimensions (mm)
	D1	D	D3	H	M-h
1"	79.5	108	115	180	4 x 15
2. ""	120.5	152	160	255	4 x 19
3"	152.5	190	213	260	4 x 19
4"	190.5	229	265	290	8 x 19
6"	241.5	254	305	330	8 x 22
8"	298.5	343	355	350	8 x 22
10	362	406	420	400	12 x 25