Metal Seated Trunnion Ball Valve
Metal-seated trunnion ball valves are resistant to abrasion, erosion, corrosion, solids, and high temperatures up to 640℃. Special metal-seated ball valves are available in high pressure, big size, top entry, etc.
The metal seated ball valve leakage rate meets the highest standard of EN-12266, ISO 5208, ANSI FCI 70.
There is wide selection of coating materials, such as Chrome Carbide (CrC), Hard Chromium (HCr), Tungsten Carbide (WC-Co), Cobalt Based Alloy, and Stellite 6 etc.
Relia’s scraper seat is ideal for most difficult applications where build-up of damaging fluid deposit may occur on the ball face.
- Size
- 2"~40"
- Temperature Range
- -29~640℃
- Pressure Rating
- Class 150~2500
Features and Benifit
Corrosion / Erosion Resistance
- Extend the life of metals with a wide selection of surface coatings, available for valve internal / externals. These coatings include Teflon, chrome, electroless nickel, zinc phosphate,tungsten carbide galvanizing & many more options.
Ball & Seats
- Mate-lapped for 100% sealing contact
- Ensures absolute shutoff per ANSI classification
- Corrosion resistant
- Seats are protected from flow in open / closed position
- Seats are available as field replaceable sets
Seat Spring
- Assisted by line pressure, provides a constant mechanical force on ball against seat to maintain a tight seal
Body Gasket
- Encapsulated spiral wound body seals guarantee zero leaks to the surrounding area.
- Lowers contact stresses
Drawings
- Cast Steel Metal Seated Trunnioin Mounted Ball Valve
- Forged Steel Metal Seated Trunnioin Mounted Ball Valve
Typical Material
| Item | Part Name | Material | |
| Cast Steel | Forged Steel | ||
| 1 | Body | A216 WCB | ASTM A105 |
| 2 | Ball | F316+TCC | |
| 3 | Seat | F316+TCC | |
| 4 | Stem | XM-19 | |
| 5 | Stem packing | Graphite | |
| 6 | Body Seal 1 | Graphite | |
| 7 | Body Seal 2 | Graphite | |
| 8 | Seat spring | Inconel X-750 | |
Seat Models
Stem Extentions
Leave Us Your Info
Could you please kindly fulfill the following information when enquiring:
Valve type (ball, gate, globe, check etc.), valve size, pressure class, valve material, and end connection (flanged, butt welding etc.)
