Single Union Bball Valve
Normal Size: NPS 12"～48"
Pressure Rating: Class 150 LB～Class 600 LB
Design Standard: API 6D
End to End: API 6D
Connection: Buttweld
Material: A105, LF2, F304, F316, F304L, F316L, F321, F51, F53
Drive Method: Manual, Gear Box, Electro-motion, Pneumatic, Linkage
Test Standard: API 6D
Character
Fully-welded ball valve is widely used in recent years, mainly used in oil and natural gas gathering and pipeline transportation, Our single weld joint ball valve are developed by our technician, artistically designed and more practical. Our ball valve is in accordance with two-way sealing valve seat, automatic discharge pressure at the same time, fire prevention, anti-static function.
Small volume, Light weight, Split & Fixed type metal or soft sealing, Double seat, Double block and bleed, Single weld structure, Advanced manufacuture technology, Reasonable sealing, Stable performance, Long life.
Specification
1 Fully welded body;
2. Full bore or Venturi reduced bore;
3. Welding ends, flanged ends or weldding&flanged ends;
4. All forged steel body and trim;
5. Fire safe designed and antistatic device;
6. Ball trunnion-mounted in the body;
7. Blowout resistance designed;
8 Bi-directional (All-tightening) or Single-directional(Self-relieving) seats;
9.Double Piston effect seating(Bubble-tight seat seals);
10. Metal-to-metal and/or soft ball composite sealing;
11. Emergency seals for stem and seat providing a full-contained sealant injection back-up system;
12. Double block and bleed(DBB);
13. Nickel plating and/or chrome plating for carbon steel trim;
14. Low operating pure torque
Standard
Design & Manufacturing Standard：API 6D, ASME B16.34, API 608, MSS SP-72, BS 5351
Structure Length Size：ASME B16.10 ，API 6D，EN 558
End Connection Size：ASME B16.5，ASME B16.47 (DIN 2501)
Butt Welding Size：ASME B16.25
Pressure-Reference Temperature：ASME B16.34
Test and inspection：API 598，API 6D
Prevent Electrostatic Design：Fireproofing Design API 607/6FA
