Flange-Connection Fixed Ball Valve

Flange-connection fixed 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 hydrodynamic etc.
Inside nominal diameter: DN15~800mm (1/2”~32”)

Flange-Connection Fixed Ball Valve

Flange-connection fixed ball valve main parts and materials

NO. Accessory name Material
GB ASTM
1 Body WCB A216-WCB
2 Spring 60Si2Mn AISI 9260
3 Sealing ring PTFE PTFE
4 Gasket PTFE PTFE
5 Blow off sewer 25 A105
6 O-ring Rubber Rubber
7 Bottom cover 25 A105
8 Screw nail 35 A193-B7
9 Fixed spindle 1Cr13 A276-410
10 Sliding bearing PTFE &stain less steel PTFE &stain less steel
11 Ball 1Cr18Ni9Ti SS304
12 Bonnet WCB A216-WCB
13 Seat 25 A105
14 Stem 1Cr13 A276-410
15 Stud 35CrMoA A193-B7
16 Nut 35 A194-2H
17 Cover 25 A105
18 Stuffing PTFE PTFE
19 Support WCB A216- WCB
20 Gland WCB A216- WCB
21 Key 45 AISI C 1045

Flange-connection fixed 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 API 6D API598

Flange-connection fixed ball valve test pressure

Pressure grade Test pressure (Mpa)
Nominal pressure Pound (class) Shell test Sealing test
1.6 - 2.5 1.76
2.5 - 3.8 2.75
4.0 - 6.0 4.4
- 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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