Type residue drainage check valves, bolted bonnet, raised flanged.
Design: API 6D, API 594.
Body: ASTM A216 WCB
Nominal size: 8 Inch, DN200.
Nominal class: 600 LB, PN100.
End Connection: RF.
Face to face: ASME B16.10. 
Test and inspection: API 598.
Product Range:
Body material: Carbon steel.
Normal diameter: 2 - 20 Inch (DN50 - DN500).
End connection: Flanged.
Pressure range: PN10-25.
Working temperature: -29℃ - +100℃.
Technical parameters and characteristics
	
		
			| Product | Type residue drainage check valves. | 
		
			| Nominal diameter | 2 Inch - 20 Inch. | 
		
			| Design temp. | Down to -29℃. | 
		
			| Design pressure | PN10-25. | 
		
			| Material | Carbon steel. | 
		
			| Design standard | API 6D, API 594. | 
		
			| Face to face | ASME B16.10. | 
		
			| Connection end | Flange. | 
		
			| Test standard | API 598. | 
		
			| Package | Plywood | 
		
			| Application | Ash water mixture, slag mixture. |