Material reference
- Body
- ASTM A216 WCB / ASTM A351 CF8M / ASTM A352 LCB
- Seat ring
- R-PTFE
- Ball
- ASTM A105/ENP / ASTM A182 F316
- Stem
- ASTM A182 F6a / ASTM A182 F316
- Packing
- PTFE/Graphite
Material options cannot be combined arbitrarily; review medium, temperature and sealing requirements together.
Documents & selection inputs
Include medium, design and operating pressures, temperature, quantity, ends and operation. Specify applicable acceptance criteria for fire testing, fugitive emissions or other special tests.
Drawings, dimensions, torque and inspection documents are reviewed for the selected construction. Design references in historical catalogues are not certification claims.
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