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Wenzhou Goldtop Valve Co.LTD
Gold top valve located in Oubei Town, Wenzhou, China,where can make all kinds of precision balls,including top entry,metal seat and V type balls.On this base,our products range of floating,trunnion
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Ball Valves Cast & Forged Floating & Trunnion valve carbon steel ball valve

Wenzhou Goldtop Valve Co.LTD

Ball Valves Cast & Forged Floating & Trunnion valve carbon steel ball valve

Brand Name : GOLD TOP

Certification : ISO

Place of Origin : CHINA

MOQ : 1 P

Class : 150 to 1500

temperature : -50ºF (-46ºC). Not for use above +650ºF (+340ºC)

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Ball Valves Cast & Forged Floating & Trunnion


TRUNNION VALVES
A Trunnion-Mounted Ball Valve uses a Trunnion, or lower stem to support the ball within the valve body. Characteristics of a Trunnion-Mounted Ball Valve are:

The ball is fixed, it does not float
The ball is centered by the stem at the top and trunnion at the bottom
The seal is formed by the seats moving toward the ball
More complex than floating ball valves
The Trunnion-Mounted Ball Valve is made up of the following basic components. Body, Ball, Seat/Seat Assemblies, Upper Stem, Trunnion and End Connections. These valves are often supplied with flanged or butt-weld ends.

The advantages of Trunnion-Mount Ball Valves are:

No size limit to the use of trunnion-mounted ball valves
Trunnion supports the weight of larger balls
May be used in higher pressure applications
Seat Moves to the Ball
Lower Torque and Actuation Costs
Ease of Operation
Double Block and Bleed Capabilities
The Trunnion seat design is manufactured in one operation that machines the metal seat holder / retainer to which the seat insert is added. In some configurations the seat insert is then locked into place by rolling the seat lip into the insert groove, resulting in an extremely reliable seal.

Materials & Service Applications


Firesafe Certificates
Process Ball Valve Floating SLFSBV01 - Class 150 to 1500
Process Ball Valve Floating SLFSBV01-DBB - Class 150 to 1500
Process Ball Valve Floating SLFSBV02 - Class 150 to 600
API6D Pipeline Ball Valve Trunnion BVF100 - Class 150 to 2500
API6D Pipeline Ball Valve Trunnion FS9000 - Class 150 to 1500


Technical Liability Limitations


Service Applications
Non-corrosive applications including water, oil and gases at temperatures between -20ºF (-30ºC) and +800ºF (+425ºC)
Low temperature applications to -50ºF (-46ºC). Not for use above +650ºF (+340ºC).
Low temperature applications to -50ºF (-46ºC). Not for use above +650ºF (+340ºC).
Low temperature applications to -75ºF (-59ºC). Not for use above +650ºF (+340ºC).
Low temperature applications to -100ºF (-73ºC). Not for use above +650ºF (+340ºC).
Low temperature applications to -150ºF (-101ºC). Not for use above +650ºF (+340ºC).
Non-corrosive applications including water, oil and gases at temperatures between -20ºF (-30ºC) and +1100ºF
(+593ºC).
Non-corrosive applications including water, oil and gases at temperatures between -20ºF (-30ºC) and +1100ºF
(+593ºC).
Mild corrosive or erosive applications as well as non-corrosive applications at temperatures between -20ºF (-30ºC)
and +1200ºF (+649ºC).
Mild corrosive or erosive applications as well as non-corrosive applications at temperatures between -20ºF (-30ºC)
and +1200ºF (+649ºC).
Corrosive application at temperatures between -20ºF (-30ºC) and +900ºF (+482ºC).
Corrosive application at temperatures up to +1300ºF (+704ºC)
Corrosive or either extremely low or high temperature non-corrosive services between -450ºF (-268ºC) and
+1200ºF (+649ºC). Above +800ºF (+425ºC) specify carbon content of 0.04% or greater.
Primarily for high temperature, corrosive applications between -450ºF (-268ºC) and +1200ºF (+649ºC). Above
+1000ºF (+540ºC) specify carbon content of 0.04% or greater.
Corrosive or extremely high temperatures non-corrosive services between -450ºF (-268ºC) and +1200ºF (+649ºC).
Above +800ºF (+425ºC) specify carbon content of 0.04% or greater.
Corrosive or non-corrosive services to +800ºF (+425ºC).
Corrosive or non-corrosive services to +800ºF (+425ºC).
Good resistance to hot sulfuric acid to +800ºF (+425ºC).
Weldable grade. Good resistance to corrosion by all common organic acids and salt water. Also highly resistant to
most alkaline solutions to +750ºF (+400ºC).
Is well suited for handling hydrofluoric acid at all concentrations and temperatures. Good resistance to sulphuric
and phosphoric acids to +1200ºF (+649ºC).
Good resistance to strong oxidation conditions. Good properties at high temperatures. Good resistance to sulphuric and
phosphoric acids to +1200ºF (+649ºC).
Very good for high temperature service. Good resistance to strongly corrosive media and atmo



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