Worm gear flange ball valve is widely used for pipelines to cut off or connect medium in petroleum, gas, electricity, etc. It has a ball with a hole. The ball rotates with stem to open or close valve. Compared with other valves, ball valve has the least flow resistance. When the valve is opened completely, medium flow though the valve without any losses.
Standards
|
Standards |
GB |
API/ANSI |
|
|
Design |
GB/T12237 |
API 6D |
ANSI B16.34 |
|
Flange length |
GB/T12221 |
API 6D |
ANSI B16.10 |
|
Length(welding) |
GB/T15188.1 |
API 6D |
ANSI B16.10 |
|
Flange |
GB/T9113 |
ANSI B16.5, B16.47 |
|
|
Testing & inspection |
GB/T9092 |
API 6D |
API 598 |
Materials
|
NO |
Part Name |
Materials |
|
|
GB |
ASTM |
||
|
1 |
Body |
WCB |
A2116-WCB |
|
2 |
Seal ring |
PTFE |
PTFE |
|
3 |
Ball |
1C18Ni9Ti |
SS304 |
|
4 |
Nut |
35 |
A194-2H |
|
5 |
Stud |
35CrMoA |
A193-B7 |
|
6 |
Stone body |
WCB |
A216-WCB |
|
7 |
Gasket |
Flexible graphite + stainless steel |
B12.10-304F/.G |
|
8 |
Packing |
PTFE |
PTFE |
|
9 |
Packing gland |
WCB |
A2116-WCB |
|
10 |
Spacer |
25 |
A105 |
|
11 |
Bead flange |
65Mn |
AISI 1066 |
|
12 |
Handle |
K33 |
A47-667 |
|
13 |
Stem |
1Cr33 |
A276-410 |
|
14 |
Screw |
35 |
A193-B7 |
|
15 |
Thrust washer |
PTFE |
PTFE |
Dimensions
|
Nominal Diameter(mm) |
15 |
20 |
25 |
40 |
50 |
65 |
80 |
100 |
125 |
150 |
200 |
|
d1 |
13 |
19 |
25 |
38 |
64 |
64 |
76 |
102 |
127 |
152 |
203 |
|
L |
108 |
117 |
127 |
165 |
191 |
191 |
203 |
229 |
356 |
394 |
457 |
|
H |
59 |
63 |
75 |
95 |
142 |
142 |
152 |
178 |
252 |
272 |
342 |
|
W |
130 |
130 |
160 |
230 |
400 |
400 |
400 |
650 |
1050 |
1050 |
1410 |
|
Wt(kg) |
2.5 |
3 |
5 |
7 |
15 |
19 |
19 |
33 |
58 |
93 |
160 |
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