Chemical Ball Valve

Chemical Ball Valve
Applicable Temperature: -20ºC ~ 150 ºC
Main Materials: WCB/CF8/CF8M/CF3/CF3M
Applicable Medium: Water / Oil / Gas / Causticity Medium
Pressure Rating: 1000WOG/2000WOG
Size Range: 1/4" ~ 4"(DN8-DN100)

Product Details

Chemical Ball Valve


Know more about the Chemical Ball Valve

Ball valve is a form of quarter-turn valve which uses a hollow, perforated and pivoting ball (called a "floating ball") to control flow through it. It is open when the ball's hole is in line with the flow and closed when it is pivoted 90-degrees by the valve handle. The handle lies flat in alignment with the flow when open, and is perpendicular to it when closed, making for easy visual confirmation of the valve's status.

 

Ball valves are durable, performing well after many cycles, and reliable, closing securely even after long periods of disuse. These qualities make them an excellent choice for shutoff applications, where they are often preferred to gate and globe valves, but they lack their fine control in throttling applications.


Data and description of ball valve

ItemData and description
Nominal diameter1520253240506580100125150200250300
Rated flow coefficient20387211017021538055089014002000358056508100
Action range0-90 degree
Air supply pressure0.4-0.7 Mpa
Allowable pressure differencebelow nominal pressure
Nominal pressure1.6, 2.4, 4.0, 6.4 Mpa, ANSI 150LB, 300LB
Valve body materialWCB, 304, 316, 304L, 316L
FillerPTFE V-filler, PTFE carbon fiber, PTFE asbestos, flexiable graphite
Valve seat sealing typeMetal carbide seal: -29 ~ 425 degree
Soft sealing: PTFE: -20 ~175 degree, PPL:-40~280 degree, Nylon:-40~80 degree
Valve core shapeConcentric full spherical type
Valve core formfloating ball type
Flow characteristicquick open
Action formAir open type, air close type, electric open type, electric close type
Pneumatic actuatorDouble acting, spring return
Optional pneumatic actuatorAT/GT pneumatic actuator, DRG scotch Yoke pneumatic actuator
Accessorieselectrical solenoid positioner, solenoid valve, limit switch, lock valve, air filter pressure reducing valve
Connection typeFlange, thread, welding


Properties of the ball valve:

Properties:

 Advanced hardening technologies have been adopted in producing ball and seat, such as Ultron-sonic spray coating, nick base spray welding, surface specially hardening, stellite spray welding and so on. The application temperature may up to 540ºC, the maximum is 980ºC.  The surface material also possesses good resistance properties of friction and impact.

1. Valve stuck prevented under high temperatures.

2. Excellent tightness functions.

3. An entire fire-safe structure.  

4. Natural anti-static structure 

6. Double block and bleed function



The Casting Technology for fully weld ball valve

It is special used for the media within sticky, with particle and fiber charactiscs. Ball valve is widely used in the control system of the industries, such as petroleum, chemical, light industry, high pressure equipment, pharmaceutical, paper making, etc. 


ball valve applicationball valve casting


Transportation of ball valves

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