1. Double O-shaped tight rings prevent leakage at the valve stem position

2. The anti-blowout valve stem is installed from the inside of the valve body. The steps at the installation position of the valve stem ensure the safety of the valve stem under various pressures and prevent it from being blown out

3. When the soft sealing material is damaged by fire, the metal valve seat is pushed towards the metal ball under pressure, cutting off the pipeline to prevent medium leakage

4. O-rings and gaskets prevent leakage between the body cover

5. The floating valve seat equipped with a pre-tensioning spring ensures sealing even at low pressure

6. Sealant (grease) injection device, in emergency situations, prevents leakage at the valve stem by injecting sealant

7. Sealant (grease) injection device, in emergency situations, prevents leakage at the valve seat by injecting sealant

8. Plug, drain the dirt in the valve cavity

Design standards: API 6D, ASME B16.34, BS 5351, API 608, MSS SP-72

Structural length: ASME B16.10, API 6D, EN 558

Flange standards: ASME B16.5, ASME B16.47, DIN 2501

Butt welding end standard: ASME B16.25

Inspection standards: API 598, API 6D

Size: 2" to 56"(DN25 to DN1400)

Nominal pressure: ASME CLASS 150-1500 (PN16 - PN250)

Valve body materials: carbon steel, stainless steel, alloy steel, etc

Sphere materials: A105+ENP, F304, F316, etc.

Valve stem materials: A105+ENP, F304, F316, etc.

Valve seat material: Hard seal or soft seal PTFE, PEEK, NYLON

Connection terminals: RF, RTJ, BW

Operation: Handle, gear, electric, pneumatic, hydraulic