Gfq Fluorine Lined Breathing Valve

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

Product Description

I. Product Overview:
GFQ lined fluorine breathing valve is installed on the top of the storage tank, is to solve the positive pressure in the tank, negative pressure of the gas, so that the liquid in the tank is not hindered, when the external liquid is input into the tank, there is a large number of gas to call out (called positive pressure). If the liquid in the tank is exported, the tank must 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.
Second, product features:
1. Simple structure, easy maintenance, safe and convenient.
2, the valve disc is made of tetrafluoroidal material, low temperature resistance, good anti-freeze performance.
3, the new breathing valve shell selection of stainless steel, cast steel and aluminum alloy, good corrosion resistance.
4, the performance of the new breathing valve is fully in line with the provisions of the Ministry of Petroleum Industry standard SY7511-87.
Third, product application:
It is suitable for storing Class A oil with internal point less than 28 ° C and Class B oil with flash point less than 60 ° C, such as gasoline, benzene, toluene, kerosene, light diesel, oil, crude oil and other oil products with the same nature of chemical products storage tank use, it works normally in the temperature environment of -35 ° C -60 ° C.
Four, connection size:

Nominal diameter (mm)	Mounting dimensions (mm)
	D	K	L	H	N x phi
DN25	115	85	160	165	4 x 14
DN32	135	100	180	185	4 x 18
DN40	145	110	190	190	4 x 18
DN50	160	125	220	220	4 x 18
DN80	195	160	270	260	8 x 18
DN100	215	180	310	280	8 x 18
DN150	280	240	380	330	8 x 22
DN200	335	295	450	380	12 x 22
DN250	395	350	520	420	12 x 22
DN400	565	515	670	520	16 x 26