Pneumatic flange lined fluorine butterfly valve-Fornitore globale

No. 118, Building 4, Yulin Electromechanical City, No. 58 Xingyuan East Road, Zhangdian District, Zibo City, Shandong Province

Pneumatic fluorine lined butterfly valve

Valve model: D671F46，D641F46，D671F4，D641F4

Diameter specification: DN50～DN1200

Structural form: Medium line type, clamp type, flange

Valve body material: cast steel WCB, stainless steel 304, stainless steel 316

Nominal pressure: PN6、PN10、PN16

Applicable temperature:- 20℃～180℃

Application scope: weakly corrosive fluids and strong acid media, etc

Product features: Good sealing performance, with super strong corrosion resistance and wear resistance

Introduction to Pneumatic Fluorine lined Butterfly Valve:

Pneumatic lined fluorine butterfly valve, also known as pneumatic lined anti-corrosion butterfly valve, is a thick layer of fluoroplastic lining on the flow components that come into contact with the pipeline medium (such as the inner wall of the valve body, butterfly plate, valve seat), which has strong corrosion resistance and wear resistance. The valve seat and disc of the pneumatic fluorine lined butterfly valve are all made of PTFE, effectively ensuring that the valve shaft and other related components are not corroded by the medium in the valve chamber. Pneumatic fluorine lined butterfly valves are divided into pneumatic clamp type fluorine lined butterfly valves and pneumatic flange type fluorine lined butterfly valves according to different connection methods. Switching or regulating actuators can also be selected according to the working conditions to achieve rapid cutting off of pipeline media or proportional flow control. They can be widely used in corrosive fluids with temperatures ≤ 180 ℃ and strong acid and alkali media at room temperature and pressure.

Application of Pneumatic Fluorine lined Butterfly Valve:

The sealing structure of pneumatic lined fluorine butterfly valves can be divided into semi lined fluorine butterfly valves and fully lined fluorine butterfly valves according to the operating conditions. They have the advantages of aging resistance, corrosion resistance, long service life, etc., and the sealing performance can reach zero leakage. They are currently one of the ideal choices for anti-corrosion equipment, especially suitable for places with corrosive or cleanliness requirements. They are widely used in any concentration of acid, alkali, strong oxidant, aqua regia, various organic acids, reducing agents, organic solvents and other media. However, they are not suitable for process media with high temperature and pressure or granular media. Generally, when the pressure and temperature exceed a certain level, it is recommended to use metal sealing materials for butterfly valves.

Technical parameters of pneumatic fluorine lined butterfly valve:

Nominal Diameter	DN50～DN1200(mm)
pressure rating	PN0.6、1.0、1.6MPa
Connection method	Clamp type and flange connection
Drive mode	Pneumatic control, compressed air 4-7 bar, can be equipped with manual device
Temperature	Polytetrafluoroethylene PTFE:- 20℃～180℃
Leakage amount	Compliant with standards (up to zero leakage)
Sealing structure	Half lined fluorine seal, fully lined fluorine seal
workplace	Weakly corrosive fluids and strong acid media (in ambient temperature and pressure, ambient temperature and low pressure situations)
attachment options	Positioner, solenoid valve, air filter pressure reducer, holding valve, travel switch, valve position transmitter, handwheel mechanism, etc
control mode	Switch off（Two switchescontrol）Adjustable type (locator 4-20mA analog signal)

Pneumatic fluorine lined butterfly valve material and temperature (℃):

1. Perfluoroethylene FEP (F46): -85~150

2. Tetrafluoroethylene Ethylene ETFE (F40): -80--220

3. Soluble PTFE PFA (FA): -70~200

4. Polytetrafluoroethylene (PTFE) (F4): -200~180

5. Polyvinylidene fluoride PVDF (F2): -70~100

6. Modified polyethylene FRPE (PO): -58~80

Different materials are suitable for different temperatures and media

Performance characteristics of pneumatic fluorine lined butterfly valve:

1. Pneumatic anti-corrosion butterfly valve has a small operating torque, is easy to operate, and is labor-saving and agile;

2. Pneumatic lined PTFE butterfly valve can be installed at any position and is easy to maintain;

3. The sealing components of the pneumatic anti-corrosion butterfly valve can be replaced, and semi lined with fluorine or fully lined with fluorine can be selected according to different working conditions;

4. The sealing material of the pneumatic corrosion-resistant butterfly valve is resistant to aging and corrosion, with a long service life, and can be used for weakly corrosive fluids and strong acid media.

Performance Specification for Pneumatic Fluorine lined Butterfly Valve:

Nominal Diameter	DN（mm）	50~1200
nominal pressure	PN（MPa）	0.6	1.0	1.6
test pressure	strength test	0.9	1.5	2.4
	Sealing test	0.66	1.1	1.76
	Airtight seal test	0.6	0.6	0.6
Action form	Double acting, single acting normally closed, single acting normally open
Optional Features	The electrical part can be explosion-proof and equipped with a handwheel mechanism