Technical Specifications

14 | GE Oil & Gas
Standard Materials of Construction
Metal Seal Design
Item
Number
Description
-20°F to +450°F
(-29°C to +232°C)
+451°F to +750°F
(+233°C to +399°C)
+751°F to +800°F
(+400°C to +427°C)
2 Shaft 17-4 PH Stainless Steel ASTM A564 Gr 630
5 Packing PTFE Graphite
6 Bearings Glass-Backed PTFE Bronze 316 Stainless Steel Nitrided
10 Body Carbon Steel A216 Gr WCB or A105
12 Disc 316 Stainless Steel A351 CF8M or A182 F316 Nitrided
14 Seal Inconel
Carbon Steel Construction
Item
Number
Description
-100°F to +450°F
(-73°C to +232°C)
+451°F to +750°F
(+233°C to +399°C)
+751°F to +900°F
(+400°C to +482°C)
2 Shaft 17-4 PH Stainless Steel ASTM A564 Gr 630
316 Stainless* Steel
ASTM A479 Gr 316
5 Packing PTFE Graphite
6 Bearings Glass-Backed PTFE Bronze 316 Stainless Steel Nitrided
10 Body 316 Stainless Steel A351 CF8M or A182 F316
12 Disc 316 Stainless Steel A351 CF8M or A182 F316 Nitride
14 Seal Inconel
* Metal seal valves with 316 SS shafts have reduced pressure differential ratings. Monel, Nitronic 50 and Inconel (718 or X750) may be
substituted for higher differential pressures and elevated temperatures. Please consult GE for application assistance.
Stainless Steel Construction