Forged Steel Floating Ball Valve
1. Product Overview
A typical forged steel floating ball valve. Two piece split body, side entry.
Forged steel floating ball valves are mainly constructed by intricate valve parts made from forged materials. Compared to the cast counterparts, forged steel has fine-grained metallurgical microstructure which has less inclusions and less liquations. The forged steel ball valve not only eliminates internal defects of cast steel such as microsegration and microporosity but also attains improved omnidirectional mechanical properties as well as better corrosion resistance.
2. Technical specifications for forged steel floating ball valve
Design Features
The forged steel floating ball valve can be designed and manufactured to the same standards as that of cast steel floating ball valves. Its design features are illustrated below,
The illustration of design features of forged steel floating ball valve.
(1) Double “D” stem head which ensures handle lever will always be mounted correctly, parallel to flow, indicating valve open and closed positions. (2) Secure line flow locking device: the valve is equipped with an integral locking device to secure line flow. (3) Anti-static device: Spring loaded pins assures that the electrical continuity between the ball, stem and body, to avoid arcing due to static buildup. (4) Blow-out proof stem: the lower end of the separate stem is T-shoulder shaped to create an integral collar making the stem blow-out proof. (5) Bolted body maintains seal integrity with properly torqued bolting. (6) Fire safe design: metal to metal sealing shuts off valve flow when soft sealing materials are destroyed by fire.
Material Selection
The 3D explosive view of a forged steel floating ball valve, side entry & two piece split body design.
| ITEM | PART | STANDARD MATERIAL | STAINLESS STEEL | SOUR SERVICE | LOW-TEMP. SERVICE |
|---|---|---|---|---|---|
| 1 | Body | ASTM A105N | ASTM A182 F316 | ASTM A105N | ASTM A350 LF2 |
| 2 | Bonnet | ASTM A105N | ASTM A182 F316 | ASTM A105N | ASTM A350 LF2 |
| 3 | Ball | ASTM A105N/ ENP | ASTM A182 F316 | ASTM A105N/ ENP | ASTM A182 F316 |
| 4 | Lever | Carbon Steel | Carbon Steel | Carbon Steel | Carbon Steel |
| 5 | Seat Ring | PTFE | PTFE | PTFE | PTFE |
| 6 | Stem | ASTM A182 F6a | ASTM A182 F316 | ASTM A182 F6a | ASTM A182 F316 |
| 7 | Gland | ASTM A276 420 | ASTM A276 316 | ASTM A276 420 | ASTM A276 316 |
| 8 | Gasket | 316SS+Graphite | 316SS+Graphite | 316SS+Graphite | 316SS+Graphite |
| 9 | Packing Set | Graphite | Graphite | Graphite | Graphite |
| 10 | Space Ring | ASTM A276 420 | ASTM A182 F316 | ASTM A276 420 | ASTM A182 F316 |
| 11 | Thrust Washer | PTFE | PTFE | PTFE | PTFE |
| 12 | Stud | ASTM A193 B7 | ASTM A193 B8 | ASTM A193 B7M | ASTM A193 L7M |
| 13 | Nut | ASTM A194 2H | ASTM A194 8 | ASTM A194 2HM | ASTM A194 7M |
| 14 | Anti-Static | SS | SS | SS | SS |
| 15 | Bolt | Carbon Steel | SS | Carbon Steel | SS |
| 16 | Gland Cap | ASTM A105N | ASTM A182 F316 | ASTM A105N | ASTM A350 LF2 |
| 17 | Gasket | 316SS+Graphite | 316SS+Graphite | 316SS+Graphite | 316SS+Graphite |
| 18 | Gland Flange | ASTM A216 WCB | ASTM A351 CF8 | ASTM A216 WCB | ASTM A352 LCB |
| 19 | Bolt | ASTM A193 B7 | ASTM A193 B8 | ASTM A193 B7M | ASTM A193 L7M |
| 20 | Locking Plate | SS | SS | SS | SS |
| 21 | Screw | SS | SS | SS | SS |
| 22 | Bolt | Carbon Steel | SS | Carbon Steel | SS |
| 23 | Washer | Carbon Steel | SS | Carbon Steel | SS |
| 24 | Stop Plate | Carbon Steel | Carbon Steel | Carbon Steel | Carbon Steel |
See the dimension and weight specification of forged steel floating ball valves 600LB, 900LB, and 1500LB.
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