Size Range
2"~48"
Temperature Range
-196℃~650℃
Pressure Rating
ASME CL, 150, 300, 600, 900, 1500, 2500
1. The body utilizes forgings, which are available in a large array of materials, making the fully welded ball valve (welded body ball valve) well-suited for special applications as well as standard service.
2. All welding processes for the body are suited to the materials of construction and are qualified and performed according to ASME Section IX.
3. The floating seats are free to move slightly along the longitudinal axis of the bi-directional valve.
4. Double Block-and-Bleed – A single valve with two seating surfaces that, in the closed position.
5. Double Piston Effect (DPE) Seat Design - The seat design allows for both seats to seal with pressure acting from the same side of the valve.
Didtek Fully Welded Ball Valve adopts forged material, welded body, instead of bolts and nuts, to aviod any potential leakage from body. The forged body with regular structure and even thickness can avoid shrinkage cavities, pin holes, cracks, sand holes and other defects occurring to casting body valves. Fully-welded ball valves can be spherical and cylindrical type. Usually the spherical type has only one welding seam on the body, the cylindrical type has two welding seam on the body.
2'' to 48''
LF2
-196 to 650°C
ASTM A479 Type 410
17-4PH
XM-19
ASTM A182 F316
ASME CL150, 300, 600, 900, 1500, 2500
RPTFE, Nylon, Devlon, PEEK, Tek-Fil, TFM
Zero Leakage
ASTM A105 w/ENP
ASTM A350 Gr. LF2 w/ENP
ASTM A182 Gr. F316
ASTM A182 Gr. F316 w/ENP
One Piece
API 6D, BS5351, ASME B16.34
Butt Weld
API 598, API 6D
Lioyd's CE, Lioyd's UKCA, EAC, ISO 9001, API 6D, API 6FA
Reducer
ASME B16.10, API 6D
Oil and Gas Pipeline, Offshore Platforms, Onshore Terminals, Emergency Shutdown, Suction and Discharge Isolation, Block and Bypass, Pumping, Compression and Reinjection Units, Metering Stations, Pig Traps, Surge-Relief Skids, Decoking Isolation, Buried Services, Produced Water (Brine) Services
