Product Overview
The soft-seated floating ball valve for gas manufactured by our company adopts a single-inclined-plane elastic sealing ring or V-groove elastic sealing ring structural design. When the medium pressure is low, the contact area between the sealing ring and the ball is small, generating a high sealing specific pressure to ensure reliable sealing. When the medium pressure rises, the contact area between the sealing ring and the ball increases, allowing the sealing ring to withstand high medium pressure without damage. Sealing ring materials such as PTFE feature excellent self-lubricating performance and low friction wear against the ball, contributing to a long service life.
Applicable Media: Water, gas, oil products, natural gas, acidic and alkaline corrosive media
Driving Modes: Manual, pneumatic, electric, hydraulic, etc.
Applicable Temperature: -196~350℃
Nominal Diameter: DN15~250mm (1/2"~10")
Applicable Standards
| Design Basis | GB Series | API Series |
|---|---|---|
| Design Standard | GB/T 12237 | API 6D, ANSI B16.34 |
| Face-to-Face Length for Flanged Ends | GB/T 12221 | API 6D, ANSI B16.10 |
| End-to-End Length (Welded Ends) | GB/T 12221 | API 6D, ANSI B16.10 |
| Connecting Flange | GB/T 9113, JB/T 79, HG 20592 | ANSI B16.5 |
| Butt-Weld Ends | GB/T 12224 | ANSI B16.25 |
| Test & Inspection | GB/T 9092 | API 6D, API 598 |
Main Component Materials
| No. | Part Name | GB | ASTM |
|---|---|---|---|
| 1 | Body | WCB | A216-WCB |
| 2 | Sealing Ring | PTFE/PEEK | PTFE/PEEK |
| 3 | Ball | 1Cr18Ni9Ti | SS304 |
| 4 | Nut | 35 | A194-2H |
| 5 | Stud | 35CrMoA | A193-B7 |
| 6 | Right Body | WCB | A216-WCB |
| 7 | Gasket | Flexible Graphite + Stainless Steel | B12.10-304/F.G |
| 8 | Packing | PTFE | PTFE |
| 9 | Packing Gland | WCB | A216-WCB |
| 10 | Positioning Plate | 35 | A105 |
| 11 | Retaining Ring | 65Mn | AISI 1066 |
| 12 | Handle | WCB | A216-WCB |
| 13 | Stem | 2Cr13 | A276-410 |
| 14 | Screw | 35 | A193-B7 |
| 15 | Thrust Washer | PTFE | PTFE |