Type: Trunnion Ball Valve
Function: Blow-Down Valve, Relief Valve, Atmospheric Valve, Bypass-Valve
Temperature: Normal Temperature
Application: Industrial Usage, Water Industrial Usage, Household Usage
Transport Package: Plastic+Plywood Case
The seat material of general purpose ball valve employs generally non-metal material, such as PTFE. Limited by the seat material, the general purpose ball valve can not be used in case of high temperature application, and application medium with solid articles, and ash dregs neither. So, the application scope of general purpose ball valve is restricted partially. Taking this into consideration,Our company has developed successfully after years of hard study full range of metal to metal sealed ball valve, including floating ball valve and trunnion ball valve, which have found extensive applications in such industries as petroleum, chemistry, power, metallurgy, and light industry.
Metal to metal ball valve of Class 150-Class 2500, PN 16- PN 160, JIS 10K- JIS 20K are applicable to various pipeline and use to truncation and get through of the medium. That should be according to select different material for use while being different kinds of medium, that can be applied to non-corrosive medium, weak corrosion medium, nitric acid, acetic acid, oxidizing medium, urea and other medias; especially suitable for containing solid particles medium, slurry, powder coal, ash and other harsh work condition. The operation including, Manual, Gear box, Pneumatic Actuator, Electric Actuator and Hydraulic actuator. Metal to metal ball valve is now available for flange Ends, and also can use BW Ends, SW Ends, NPT Ends and wafer Ends.
Advanced hardening technology employed for ball and seat
Metal to metal sealed design has been employed perfectly for the ball and seat, which has also adopted the advanced hardening technologies, such as ultro-sonic spray coating, nickel base spray welding, surface specially hardening, stellite spray welding, ceramic material with high strength and hardness, and so on. Surface hardness of the ball and seat may generally reach more than HRC60, Maximun is up to HRC74, and application temperature of the material may be up to 540oC, Maximun is 980oC. Combining strength of the material gets to more than 10000 PSI. Besides, the surface materials posses also very good resistance properties of friction and impact. Metal to metal sealed ball valves made by our principals are suitable for use in most criticle working conditions.
Standards and specification
Design & manufacture:API 6D,API 608,ASME B16.34,ANSI/AWWA C507,MSS SP-72,BS 5351,BS 6364,BFCI 70-2,ISO 5211,NACE MR0175 .
Connection ends:ASME B16.5,ASME B16.47,API 605,MSS SP-44,ISO 7005-1,JIS B2238,BS 12627,ASME B16.25,ASME B16.11,BS 12760 .
Face to face dimension:ASME B16.10,ISO 5752,BS 558,BS 12982
Testing & inspection:API 598,API 6D,API 607,API 6FA,BS 6755,BS 12569,MSS SP-82,MSS SP-61
Normal pressure or rating:Class 150 ~ Class 2500,JIS 10K ~ 20K,PN 10 ~ PN 420
Normal diameter or bore:NPS1/2~NPS10,DN15~DN250
Operation type:Manual, worm gear, pneumatic, electric