Fluorine lined pneumatic ball valve

Product model:	YEQ641F46-16C
Nominal diameter:	DN15~DN600
Nominal pressure:	PN1.6MPA~2.5MPA
Applicable temperature:	-30℃~120℃
Main materials:	WCB, 304, 316, 316L stainless steel, etc

YEQ641F46 pneumatic fluorine lined ball valve is composed of pneumatic actuator and fluorine lined ball valve. The valve is lined with fluoroplastic and equipped with a new type of rod ball structure. In addition, its unique elastic lip sealing seat structure gives it the advantages of ordinary ball valves, which can have high sealing performance and low operating torque in large pressure and temperature difference ranges. Pneumatic fluorine lined ball valves can be used as switches or regulators. Corrosion resistant pneumatic ball valves are suitable for the transportation of liquids and gases (including steam) in various industrial pipelines, and can work well in strong corrosive media such as acids, alkalis, salts, etc. The full bore pneumatic fluorine lined ball valve provides maximum flow and can be used for cleaning or isolating pipelines during transportation. Corrosion resistant pneumatic ball valves are widely used for the transportation of liquids and gases (including vapors) in various types of industrial pipelines, especially in applications with highly corrosive media such as sulfuric acid, hydrofluoric acid, phosphoric acid, chlorine gas, strong alkali, aqua regia, and other highly corrosive media.

Product Features

1. Low fluid resistance, fluorine lined ball valve is the one with the smallest fluid resistance among all valve types, even for reduced diameter ball valves, its fluid resistance is quite small.

2. Thrust bearings reduce the friction torque of the valve stem, allowing for long-term balanced and flexible operation of the valve stem.

3. The valve seat has good sealing performance and is made of sealing rings made of materials such as polytetrafluoroethylene. The structure is easy to seal, and the sealing ability of the fluorine lined ball valve increases with the increase of medium pressure.

4. The valve stem seal is reliable. As the valve stem only rotates without lifting, the packing seal of the valve stem is not easily damaged, and the sealing ability increases with the increase of medium pressure.

5. Due to the good self-lubricating properties of materials such as polytetrafluoroethylene, the friction loss with the ball is small, and the service life of fluorine lined ball valves is long.

6. The bottom mounted valve stem and the protruding step at the head of the valve stem prevent the valve stem from spraying out. In the event of a fire causing damage to the valve stem seal, the protruding step can also form a metal contact with the valve body to ensure the valve stem seal.

Execution standards

Design specifications	Structure length	Connecting flange	Testing and Inspection	product identification	Supply specifications
GB/T 12237	GB/T 12221	JB/T 78; JB/T 79	GB/T 13927	GB/T 12220	JB/T 7928

Main technical parameters

Nominal pressure (MPa)	PN1.0、1.6 MPa	air supply pressure	0.4～0.7MPa
Valve body form	Two section valve body (floating sphere, fixed sphere)	air connection	G1/4'、G1/8'、G3/8'、G1/2'
Valve core form	O '- shaped spherical valve core	Action form	Single acting actuator, double acting actuator
Connection form	Flange style	ambient temperature	-30～+70℃
Packing	Polytetrafluoroethylene (PTFE)	Can be equipped with accessories	Positioner, solenoid valve, air filter pressure reducer, holding valve, travel switch, valve position transmitter, handwheel mechanism, etc
Traffic characteristics	Approximate quick opening type
Configure execution mechanism	GT、SR、ST	AT、AW	Series of single and double acting pneumatic actuators

Main component materials

Serial Number	Part name	Grey cast iron	cast steel	Stainless acid resistant cast steel		Ultra low carbon stainless acid resistant cast steel
		Z	C	P	R	P L	R L
1	Valve body/end cap	HT 250	WCB	CF8	CF 8M	CF3	CF 3M
2	Ball/stem	WCB		CF8	CF 8M	CF3	CF 3M
3	Lining/valve seat	PTFE (F4), PCTFE (F3), FEP (F46), PFA (soluble F4)
4	Packing/Cover	WCB		CF8	CF 8M	CF3	CF 3M
5	Packing/Cover	PTFE(F 4 )		PTFE(F4)		PTFE(F4)
6	bracket	35		1Cr18Ni9Ti		1Cr18Ni9Ti
7	bolt	35		1Cr17Ni2		1Cr18Ni9Ti
8	Tighten the nut	45		0Cr18Ni9		0Cr18Ni9
9	Operating handle	WCB		WCB		WCB