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|Body Material:||Forged Steel: Carbon Steel, Alloy Steel, Stainless Steel, Duplex Steel||Ball:||A105, SS304, SS316, F51, F53 Etc.|
|Size:||2in - 36in||Pressure Rating:||Class 150LB - 2500LB|
|Actuating Device:||Wrench, Gear Operated||Connection Ends:||RF, RTJ|
|Seat:||Soft Seated, PTFE, NYLON, PEEK||OEM Service:||YES|
fire safe ball valve,
lockable ball valve
Forged Steel Trunnion Mounted Ball Valve Soft Seated 3PC Split Body Flanged Api6d
Trunnion ball valves are mainly used in the industries of natural gas, oil products, chemicals, metallurgy, urban construction, environmental protection, foodstuff etc. Among them, the sulfur-resisting series products are applicable for seriously corrosive natural gas pipeline containing hydrogen sulphide mediums and impurities.
1. Product: Forged Steel Trunnion Soft Seated Ball Valve
2. Size Range: 2” - 36"
3. Pressure Ratings: ANSI Class150LB, 300LB, 600LB, 900LB, 1500LB, 2500LB
4. Body materials: Forged Steel A105 (N), LF2, F304, F316, F51
5. Trim: 13CR, 304SS, 316SS, Duplex stainless steel
6. Bore Type: Full Bore and Reduced Bore
7. Actuator: Lever, Worm Gear
8. Fire Safe Design, Anti-Static, Nace Mr0175
1. Distinctive Seating Structure
According to the extent of pressure, medium properties and sealing requirements, Trunnion ball valves may be made to front seal structure, back seal structure, or front-back dual seal structure.
2. Self-relieving Structure
In case of abnormal rise of pressure at middle cavity, ball valve of single seal structure is provided with self-relieving function, while ball valve of dual seal structure uses the auxiliary pressure relief device on valve body to carry out pressure relief.
3. First Aid of Seal
The valve is designed with an auxiliary seating emergency seal system, as shown in the figure. In case of soft seal damaged, or failure of seal in an emergency circumstances, emergency seal may be effected by injecting in sealant through auxiliary sealing system. If needed, emergency seal assembly can be used to rinse and lubricate the seating area.
Plus, valve stem can also be designed with an auxiliary emergency sealing system.
4. Fire Protection Strcture
If requested by working conditions and users, ball valve may be designed to fireproof. The fireproofing design of ball valve is to the standards of API607 and JB/T6899. In case of soft seal ring burnt in fire, the fire protection structure of ball valve functions to prevent mediums from mass leakage, thus to avoid fire spreading.
5. Antistatic Structure
When operating the valve, the friction between the ball and seat will produce electrostatic charge that can be accumulated on the ball. To prevent static spark, an antistatic device is placed on the valve to derive the electric charge accumulated on the ball.
6. Locking Device
To prevent misoperation and the unexpected open or close caused by the unpredicted circuit vibration, a locking device is designed at the fully opened and closed positions of hand operated ball valve. This design is proven especially good and effective in the production line of inflammable mediums of petroleum and chemicals, or when valves are mounted outdoors.
Design and manufacture: API6D
Inspection and Test: API 598,API 6D
End flange dimension: ASME B16.5
BW ends dimension: ASME B16.25
Face to face or End to ends: ASME B16.10
Pressure-temperature rating: ASME B16.34
2. Main Parts and Materials for the Forged Steel Trunnnion Soft Seated Ball Valve
|Carbon Steel||SS||Low Temperature Steel|
|1||Body||ASTM A105||A182 F304 / F316||A350 LF2|
|3||Drain Valve||ASTM A105||A182 F304 / F316||A350 LF2|
|4||Bottom Cover||ASTM A105||A182 F304 / F316||A350 LF2|
|5||Stud||A193 B7||A193 B8||A320 L7|
|8||Bottom Bush Bearing||PTFE+CS||PTFE+SS||PTFE+SS|
|9||Ball||ASTM A105+ENP / F304||A182 F304 / F316||A182 F304 / F316|
|10||Middle Flange Gasket||Soft Graphite+SS|
|12||Fire Safe Ring||Soft Graphite|
|14||Seat||ASTM A105+ENP||A182 F304 / F316||A182 F304 / F316|
|16||Stud||A193 B7||A193 B8||A320 L7|
|17||Nut||A194 2H||A194 8||A194 7|
|18||Bonnet||ASTM A105||A182 F304 / F316||A350 LF2|
|19||Sealant Injection Valve||ASTM A105||A182 F304 / F316||A350 LF2|
|20||Top Bush Bearing||PTFE+CS||PTFE+SS||PTFE+SS|
|21||Stem||A182 F6a||A182 F304 / F316||A182 F304 / F316|
|22||Flat Bush Bearing||PTFE+CS||PTFE+SS||PTFE+SS|
|24||Connecting Ring||ANSI 1025|
|29||Back Seat||ASTM A105||A182 F304 / F316||A350 LF2|
|30||Locating Pin||A182 F6a|
|33||Sealant Injection Valve||ASTM A105||A182 F304 / F316||A350 LF2|
Contact Person: Mr. Biff Teng