|  Company Info | |
| Company Name | Zhejiang Zhonggong Valve Group Co., Ltd. | 
| Country/Territory: | Zhejiang China | 
| Business Type: | | 1,2 | 
| Number of Employees: | |
| Main Products: floating ball valve pvc ball valve brass ball valve ball valve electric ball | |
Swing Check Valve 
Size: NPS 2"~48" 
Rating: Class150~2500 
Material: WCB, LCB, LCC, WC6, WC9, CF8, CF8M, CF3, CF3M, 4A, 5A 
Design and manufacture standards: API 6D, BS 1868, ASME B16.34 
Face to face standards: ASME B16.10, DIN 3202, 
End connections standards: ASME B16.5, ASME B16.25, ASME B16.47, DIN 2501, BS 4504 
Test standards: API 598, API 6D, BS 6755, ISO 5208 
Constructions: 
Bolted Cover (B. C) 
Build in hinge pin 
With counter weight and damping device