ZGB-1 new corrugated oil storage tank flame arresterDetailed product description：

The ZGB-1 new corrugated oil storage tank flame arrester is a new product designed by Beijing Design Institute of China Petrochemical Corporation. It has been tested and qualified by Tianjin Fire Science Research Institute of the Ministry of Public Security according to the GB5908-86 standard of the People's Republic of China. The ZGB-1 new corrugated flame arrester is widely used in oil storage tanks to prevent accidental fire from entering the tank and prevent accidents. It is an ideal product for tank fire prevention.

Performance and Characteristics
The ZGB-1 new corrugated oil storage tank flame arrester has a reasonable structure, light weight, corrosion resistance, and qualified explosion resistance performance. It has been tested for 13 consecutive subsonic flame tests and has been able to extinguish fire every time.
Easy to maintain, easy to install, no need to disassemble the breathing valve during inspection. The fire resistance performance is qualified, and there is no tempering phenomenon after 1 hour of fire resistance test.
The flame arrester core is made of stainless steel material, which is corrosion-resistant and easy to clean. The shell water pressure test is qualified.

Corrugated flame arrester American standard flange connection external dimensions: ANSI, API, ASME available for JIS standards

Specification	Installation size (mm)
	D2	D	L	H	N-d
2"	Φ120.5	Φ152	two hundred and twenty	two hundred and thirty-five	4×19
3"	Φ152.5	Φ190	two hundred and eighty	two hundred and seventy	4×19
4"	Φ190.5	Φ229	three hundred and twenty-five	two hundred and seventy-five	8×19
6"	Φ241.5	Φ279	four hundred and twenty-five	two hundred and ninety	8×22
8"	Φ298.5	Φ343	four hundred and ninety-five	three hundred and five	8×22
10"	Φ362	Φ406	five hundred and ninety-five	three hundred and twenty	12×25
12"	Φ432	Φ483	six hundred and fifty-five	four hundred and five	12×25

Scope of Application
ZGB-1 new corrugated oil storage tank flame arrester is suitable for pipelines, Class A with a flash point below 28 ℃, oil products, hydrogen oxygen liquefaction, and kerosene, diesel, toluene, crude oil, etc. with a flash point below 60 ℃. It can be used in conjunction with breathing valves or separately on the ventilation pipes of internal floating roof oil tanks and underground oil tanks at refueling stations.

National standard flange connection dimensions for corrugated flame arresters: GB, JB

Specification	Installation size (mm)
	D2	D	L	H	N-d
DN50	Φ110	Φ140	two hundred and twenty	two hundred and thirty-five	4×14
DN80	Φ150	Φ185	two hundred and eighty	two hundred and seventy	4×18
DN100	Φ170	Φ205	three hundred and twenty-five	two hundred and seventy-five	4×18
DN150	Φ225	Φ260	four hundred and twenty-five	two hundred and ninety	8×18
DN200	Φ280	Φ315	four hundred and ninety-five	three hundred and five	8×18
DN250	Φ335	Φ370	five hundred and ninety-five	three hundred and twenty	12×18
DN300	Φ395	Φ435	six hundred and fifty-five	four hundred and five	12×23

Maintenance and Repair
In order to ensure the safe use of flame arresters, they should be regularly inspected and maintained.
The flame arrester should be inspected every six months to check whether the flame arrester core is blocked, deformed, corroded, etc.
The blocked fire-resistant layer core should be cleaned thoroughly to ensure that each hole on the core is unobstructed, and any deformed or corroded fire-resistant layer should be replaced.
When reinstalling the fire-resistant layer core, it should be ensured that the joint surface is tight and there is no air leakage.

Materials of components for corrugated flame arresters:

Valve body material	Carbon steel WCB, stainless steel 304, 316
Fire retardant core material	Stainless steel explosion-proof and fire-resistant corrugated plate
Sealing material	Oil resistant asbestos rubber, PTFE tetrafluoroethylene
Environmental temperature ℃	≤480
Nominal pressure (MPa)	0.6~5.0
Explosion proof level	BS5501: IIA, IIB, IIC