Floating Ball Valve - GBA

 

A floating ball valve is a valve with its ball floating (not fixed by a trunnion) inside the valve body; it drifts toward to the downstream side and tightly pushes agains the seat under the medium pressure to ensure a reliable seal.

The floating ball valve is a simple design with goog sealingperformance relying on the seat material to withstand the workload as the sealing pressure is barred by the seat ring. Floating ball valves are mainly used in low to mid level pressure applications.

 

Cast Steel Floating Ball Valve

 

Technical Specification

     Design and Manufacture : API 608, ISO 17292

     Face to Face/ End to End : ASME B16.10

     Flange End : ASME B16.5

     Test & Inspection : API 598

 

Main Materials

     WCB, LCB, CF8 (M), CF3 (M),

     A995 4A, A995 5A, A995 6A,

     Alloy 20, Monel, Inconel

 

Main Parts Material Sheet

Note : (1) The lenght of the bonnet extension of cryogenic valves shall be determined base on actual working temperature

 

Dimensions and Weights

                               

 

Class 150

 

Class 300

 

Class 600

 

Floating Ball Valve Torque Table

 Note :

The torque measuring and calculation is based on normal room temperature, when selected seat material is PTFE/ RPTFE for Class 150/ Class 300 and Nylon for Class 600.

For low-temperature/ cryogenic service, the torque will increase 2 fold.

When sizing the actuator, a safety factor of 1.3 - 1.5 times shall be applied.

When the service or seat material is different than that specified above, the torque value will be different, it shall be subject to the conformation from the manufacturer.

 

 

Forged Steel Floating Ball Valve

 

Technical Specification

     Design and Manufacture : API 608, ISO 17292

     Face to Face/ End to End : ASME B16.10

     Flange End : ASME B16.5

     Test & Inspection : API 598

 

Main Materials

     A 105, LF2,

     F304 (L), F316 (L), F51, F53, F55

     Alloy 20, Monel, Inconel

 

Main Parts Material Sheet

Note : (1) The lenght of the bonnet extension of cryogenic valves shall be determined base on actual working temperature

 

Dimensions and Weights

                                 

 

Class 150

 

Class 300

 

Class 600

 

Class 800,Class 1500 - Class 2500

 

Applicable Standards

     Design and Manufacture : ISO 17292 (BS 5351)

                                               API 608

                                               ASME B16.34

     Connection End

          Socket Weld End (SW) : ASME B16.11

          Threaded End (NPT) : ASME B1.20.1

          Butt-Weld End (BW) : ASME B16.25

     Test & Inspection : API 598

 

Main Materials

     A 105, LF2,

     F304 (L), F316 (L), F347, F321, F51,

     Alloy 20, Monel

 

Main Parts Material Sheet

 

Dimensions and Weights

                                   

 

Class 800 - Class 1500

Note : Class 800 - Class 1500

           3-Pc, Bolted Bonnet, Full Port, Threaded, Butt-Weld, Socket Weld,

           Design ISO 17292 (BS5351), API608, ASME B16.34

 

Class 2500

Note : Class 2500

           3-Pc, Bolted Bonnet, Full Port, Threaded, Butt-Weld, Socket Weld

           Design ASME B16.34