Principle of the forged steel floating ball valve: This kind of forging ball valve has a floating ball supported by two valve seats. Under the medium pressure effect, a certain displacement can be generated by the ball itself so as to be pressed onto the seat seal ring at the outlet, guaranteeing tightness at the outlet.
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|
No. |
Part |
Material |
|
1 |
Bonnet |
ASTM A105+ENP A182-F6, F304, F316, F316L, F304L, F51 |
|
2 |
Seat |
PTFE RPTFE PEEK PPL |
|
3 |
Body Gasket |
PTFE Graphite |
|
4 |
Thrust-Washer |
A105+ENP A182-F6, F304, F316, F316L, F304L, 17-4PH, F51 |
|
5 |
Stem |
Stainless Steel |
|
6 |
Stop Nut |
Carbon Steel |
|
7 |
Spring Gasket |
A216-WCB 10256+Cr |
|
8 |
Lever |
ASTM A182-F304, F316 |
|
9 |
Backup Ring |
1015+Cr Carbon Steel+Cr |
|
10 |
Limited Plate |
Stainless Steel |
|
11 |
Positioning pin |
PTFE Graphite |
|
12 |
Packing |
PTFE |
|
13 |
"O"-Ring |
NBR Viton |
|
14 |
Antistatic Spring |
Stainless Steel SS316 |
|
15 |
Ball |
ASTM A105+ENP ASTM A182-F6, F304, F316, F316L, F51 |
|
16 |
Body |
ASTM A105+ENP A182-F6, F304, F316, F316L, F304L, F51 |
|
17 |
Stud |
ASTM A193-B7, B8M, B8, B8M |
|
18 |
Nut |
ASTM A194-2H, 2HM, 8, 8M |
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The forged steel floating ball valve are designed in accordance with ISO17292,API 608,BS 5351,GB/T 12237;
Simple structure with good tightness and small torque;
Have reduce bore type and full bore type with the minimum flow resistance (zero actually);
Low emission packing;
Fire safe, anti-static and anti-blowout stem design;
Optional locking device
Optional ISO 5211 top flange
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Body material: carbon steel, stainless steel, alloy steel
Nominal diameter:1/2"～6"(DN15~DN150)
End Connection: RF, RTJ, BW, THR, SW
Pressure range: Class150 – 2500(PN16~PN420)
Operation : wrench, worm gear, electric, etc
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