• The SV high pressure cast steel trunnion mounted ball valve has trunnion ball supported by upper and lower bearing to reduce the friction between ball and seat so that the operate torque is small for easy operation;
• Spring loaded seat is self-tightening to ensure reliable tight seal;
• Cavity pressure self relief when spring loaded single piston effect seat structure;
• Double block and bleed for residue discharge and pressure relief;
• Emergency sealant injection valve as subsidiary sealing device;
• The SV split body cast steel trunnion mounted ball valve can be divided into two piece split body and three piece split body;
• The two piece and three piece body is connected by bolts and nuts;
• Soft seal structure and metal to metal seal structure;
• Designed according to API or DIN standards;
• Full bore and reduced bore structure;
• Optional extended stem or extended bonnet;
• Optional bare stem with ISO 5211 top flange;
• Fire safe, anti-static and anti-blowout stem design.

Product range:

• Size: 2"～56" (DN50～1400)
• Pressure rating: Class 150～2500 (PN16～PN420)
• End connection: RF RTJ BW
• Body materials: Carbon steel WCB/1.0619 Low temperature steel LCB/1.1156 Stainless steel CF8/1.4308 CF3/1.4306 CF8M/1.4408 CF3M/1.4404 CF8C/1.4552 Duplex stainless steel UNS S31803/2205/4A UNS S32207; N08094/1.4539 etc.
• Ball materials: A105+ENP F304 F316 F304L F316L F51 F53 F55 904L etc.;
• Seat materials: PTFE RPTFE NYLON DEVLON PEEK PPL FKM or metal to metal seal etc.
• Operation: Bare stem wrench gear electric pneumatic electro-hydraulic gas over oil actuator

Technical standards:

• Design: API6D ASME B16.34 DIN 3357-1，EN12516-1
• Face to Face: ASME B16.10 DIN 3202F1/F4/F5/F17/F18
• BW ends: ASME B16.25 ASME B31.8 EN12627
• Flanged ends: ASME B16.5 ASME B16.47 EN1092
• Wall thickness: ASME B16.34
• Fireproof test: API 607 API 6FA
• Test and inspection: API 598 API 6D DIN3230/3 EN12266
• Pressure and temperature rating: ASME B16.34