Dairy Valves

 

 

 

Comparable Grades of Duplex Steel Valves

 

Standard	Duplex 2205
UNS	S31803
WERKSTOFF NR.	1.4462

 

Specification of Duplex Steel Valve

Pressure rating	150#,300#,600#,800#,1500#
Standards	API 600/BS1414,ASME B 16.25, ASME B 16.10, ASME B 16.5, API 598/BS EN 12266-1,ASME B 16.34
End Connection	Flanged End,Screwed [NPT],Screwed Taper,Socket Weld, Screwed Parallel
Size	1/8” to 16”

Products of Duplex Steel Valve

Duplex Steel UNS S31803 Fugitive Emission Valve	Duplex Steel UNS S31803 Gate Valve
Duplex Steel UNS S31803 Ball Valve	AISI UNS S31803 Globe Valve
Duplex Steel UNS S31803 Check Valve	Duplex Steel UNS S31803 Cryogenic Valve
Duplex Steel UNS S31803 Pressure Seal Valve	Duplex Steel UNS S31803 Nuclear Valve
Duplex Steel UNS S31803 Oxygen Services Valve	Duplex Steel UNS S31803 Butterfly Valve
Duplex Steel UNS S31803 Plug Valve	Duplex Steel S31803 Fixed Cone Valve
Duplex Steel S31803 Castings Choke Valve	Duplex Steel S31803 Tilting Disc Check Valve
Duplex Steels S31803 Lug Style Butterfly Valve	Duplex Steels UNS S31803 Pinch Valve
Duplex Steels UNS S31803 Relief Valve	Duplex Steels UNS S31803 Hydraulic Valve

Chemical Composition Duplex Steel Valve

Grade	C	Mn	S	Cr	Si	P	Mo	Ni	Fe	N
Duplex Steel Valve	0.030 max	2.00 max	0.020 max	22.0–23.0	1.00 max	0.030 max	3.0–3.5	4.50–6.50	63.72 min	0.14–0.20

Mechanical Properties of Duplex Steel Valve

Grade	Density (g/cm 3)	Melting Point (°F)	Density (lb/in 3)	Melting Point (°C)
Duplex Steel Valve	7.805	2588 – 2669	0.285	1420 – 1465