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FLOATING BALL VALVES In floating ball valves, the ball has some freedom to move along the axis
of the valve while having no freedom to rotate against the stem. when
line pressure is applied to the closed ball, it moves slightly (or floats)
downstream to Because the stem motion from full open to full closed is a 90 degree
rotation, ball valves are ideally suited for automatic operation. They
may generally be installed without regard for flow direction. All Newco floating ball valves have the following features: Full and regular port valves meet the design and test requirements of ANSI B16.34, API 6D, & federal specification WW-V-35, Type II, style 3. *Parkerizing is a zinc Phosphate Surface conversion and a Registered Trademark of The Parker Co. The information contained herein is general in nature and is not intended for specific construction or application purposes.
Newco Valves reserves the right to make changes in specifications, designs or materials at any time without notice or
obligation. *Teflon is a registered trademark of DuPont Company. Monel is a registered trademark of International Nickel Company
DESIGN FEATURES
Ball valves are straight-through flow valves which provide positive
shutoff with minimal pressure drop and flow turbulence. The barrier to
flow is a ball which is rotated 90 degrees to the direction of flow. maintain contact with the downstream seat where primary sealing
occurs.
Flange dimensions are in accordance with ANSI B16.5.
Full port valves have installation dimensions in accordance with the long pattern dimensions of ANSI B16.10 and API 6D.
Regular port valves have installation dimensions in accordance with the short pattern dimensions of ANSI B16.10 and API 6D.
MATERIALS
STANDARD MATERIAL
Part
No.Part Name Body Material Carbon Steel 316 Stainless 1 Body ASTM A216-WCB-Parkerized* ASTM A351-CF8M 2 Body Cap ASTM A216-WCB-Parkerized* ASTM A351-CF8M 3 Ball A276-316 or A351-CF8M A276-316 or A351-CF8M 4 Stem A276-316 A276-316 5 Seat RPTFE RPTFE 6 Body Seal PTFE PTFE 7 Stem Seal PTFE PTFE 8 Stem Bearing PTFE PTFE 9 Stem Ring AISI 1025 A276-316 10 Gland AISI 1025 A276-316 11 Gland Flange A283 - Chorme Plated AISI 304 12 Stop Plate AISI 304 AISI 304 13 Antistatic Spring AISI 316 AISI 316 14 Body Studs A193-B7 - Chrome Plated A193-B8 15 Stud Nuts A193-2H - Chrome Plated A194 GR 8
OPTIONAL MATERIALS Body/Body Cap:
ASTM A352-LCB - Low Temperature Carbon Steel
ASTM A351-CN7M - Cast Alloy 20
ASTM A296-M35 - Cast NiCu (Monel*)
Stem/Ball (Trim):
ASTM A182-F304 - 304 Stainless
ASTM B164 - Monel*
ASTM B473 - Alloy 20Seats:
Virgin Teflon* (PTFE)
Carbon Reinforced Teflon*
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Atlantic Valve and Supply Company
3541 9th Street, Baltimore, Maryland 21225
Phone: 410-355-8270 - Fax: 410-355-7860
Email: sales@atlanticvalve.com