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.
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
Design Features:
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
Product Range:
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
