Flange-Connection Floating Ball Valve

Flange-connection floating ball valve specifications

Applicable medium: Water, gas, oil product, natural gas and corrosive mediums such as acids, alkali etc.
Applicable temperature: -196~350℃
Driving means: manual, pneumatic, motor and hydro-dynamic etc.
Inside nominal diameter: DN15~250mm (1/2” – 10”)

Flange-Connection Floating Ball Valve

Flange-connection floating ball valve technical specifications

Design reference GB series API series
Design standard GB/T12237 API 6D ANSI B16.34
Flange-connection GB/T12221 API 6D ANSI B16.10
Structural length GB/T15188.1 API 6D ANSI B16.10
Connecting flange GB/T9113 ANSI B16.5. B16.47
Butt-welding ends GB/T12224 ANSI B16.25
Test & Inspection GB/T9092 AP16D API598

Flange-connection floating ball valve main parts and materials

NO. Accessory name Material
GB ASTM
1 Body WCB A216-WCB
2 Sealing Ring PTFE PTFE
3 Globe Ball 1Cr18Ni9Ti SS304
4 Nut 35 A194-2H
5 Stud 35Crmoa A193-B7
6 Bonnet WCB A216-WCB
7 Gasket Graphite + taintless steel B12.10-304/F.G
8 Stuffing PTFE PTFE
9 Gland WCB A216-WCB
10 Locating piece 25 A 105
11 Ring 65Mn AISI 1066
12 Wrench Kt33 A47-667 Gr.32510
13 Stem 1Cr33 A276-410
14 Screw 35 A193-B7
15 Gasket PTFE PTFE

Flange-connection floating ball valve test pressure

Pressure grade Test pressure (Mpa)
Nominal pressure Pound (class) Shell test Sealing test
1.0 - 1.5 1.1
1.6 - 2.5 1.76
2.5 - 3.8 2.75
4.0 - 6.0 4.4
6.4 - 9.6 7.04
- 150 3.0 2.2
- 300 7.6 5.6
- 600 15.0 11.0
- 10K 2.4 1.5
- 20K 5.8 4.0

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