Applicable Standards：
DESIGN & MANUFACTURE CONFORM WITH: API 6D/ ISO 14313,ASME B16.34
CONNECTION DIMENSION CONFORMS WTIH: ASME B16.25,DIN EN 12627
FIRE RESISTANCE DESIGN CONFORMS WITH: API 607/ISO 10497
INSPECTION & TEST CONFORMS WITH: API 6D,ISO 5208,API 598
MATERIAL CONFORMS WITH: ISO 15156
Materials of parts：
| 1 | Body | 12 | Ball lubricating bearing |
| 2 | Left-right body | 13 | Screw |
| 3 | Ball | 14 | Bonnet gasket |
| 4 | Seat | 15 | Support cover |
| 5 | Sealing ring | 16 | Die holder |
| 6 | O-ring | 17 | Packing |
| 7 | Stem | 18 | Terminal pad |
| 8 | Seat grease injection valve | 19 | Spring pin |
| 9 | Spring | 20 | Flat key |
| 10 | straight pin | 21 | Stem gasket |
| 11 | Blow-down vavle | 22 | Static-free spring |
Materials of parts：
| Body | A105/LF2/F304/F316/F304L/F316L/F11/F22/F51 |
| Ball | A105+ENP/LF2+ENP/F304/F316/F304L/F316L/F51 |
| Seat | A105+ENP/LF2+ENP/F304/F316/F304L/F316L/F51 |
| Stem | A105+ENP/LF2+ENP/F304/F316/F304L/F316L/F51 |
| Sealing ring | PTFE/NYLON/PEEK/TEFLON |
| O-ring | VITON/NBR |
| Screw | B7M/B8M/L7M/B16M |
| Support cover | A105+ENP/LF2+ENP/F304/F316/F304L/F316L/F51 |
| Die holder | A105+ENP/LF2+ENP/F304/F316/F304L/F316L/F51 |
| Spring | 17-4PH/17-7PH/Inconel |
| Bearing | 304+PTFE/316+PTFE |
| Gaske | Flexible graphite+304/PTFE |
*Materials could be choosed according to customers’ requirement & working condition
Additional information:
| Size | NPS 2"~48" |
| Pressure Rating | Class 150~1500 |
| Material | A105,LF2,F304,F316,F304L,F316L |
| Design & Manufacturing Standard | API 608,API 6D,BS 5351,ASME B 16.34 |
| Face to Face | ASME B 16.10,API 6D,DIN 3202 |
| End Connection | ISO5208,API 6D,BS 6755 |
| Test and Inspection | ISO5208,API 6D,BS 6755 |
| Operation Method | Manual,Worm Gear,Electric Actuator,Pneumatic Actuator |
GCGV's registered capital is 228.80 million yuan, covering an area of 22300m². There are more than 200 employees, of which more than 30% have a college degree or above, including 25 senior and intermediate technicians. The company has machining centers, CNC lathes, CNC vertical lathes,
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