API · ASME · DIN · EN standard industrial valves
Floating Ball Valves
Floating ball valves close on a simple principle: line pressure pushes the bored ball against the downstream seat, so tight shutoff comes without trunnion hardware. The range covers a cast floating series at DN15 to DN200, ANSI Class 150–600 with a PN16–PN100 metric equivalent, and -46°C to +200°C service, in full-bore and reduced-bore paths with RF, RTJ and butt-weld ends. Body, bonnet, ball and stem material grades, PTFE/RPTFE seats, fire-safe execution to API 607 and 6FA, and handle, gear, electric or pneumatic operation are all part of the specification. Selection turns on bore, seat material against line temperature and the actuation torque needed at the working pressure.
Part of the Ball Valves family
Last updated: 2026-11
Family specifications
| size range | DN15 to DN200 |
|---|---|
| pressure class | Class 150 to 600 (PN16 to PN100) |
| body materials | WCB, CF8, CF8M, F304, F316, LF2, F22 |
| seat materials | PTFE, RPTFE |
| end connections | RF, RTJ, BW |
| operation | Handle, Gear, Electric actuator, Pneumatic actuator |
| temperature range | -46°C to +200°C |
| design standards | API 6D, ASME B16.34, BS5351, API 608, MSS SP-72 |
| testing standards | API 598, API 6D, MSS |
| face to face | ASME B16.10, API 6D |
| fire safe design | API 607, API 6FA |
| bore type | Full bore, Reduced bore |
| cfA design standards | API 600, API 6D, BS5351, ASME B16.34, DIN3357, JIS B2071 |
| cfA bore type | Full bore (FB), Reduced bore (RB) |
| cfA body styles | Two pieces (2pcs) body |
| cfA stem design | Blow out proof stem |
| cfA fire safe design | API 607 |
| cfA body materials | A216 WCB |
| cfA size range | 1/2″ to 12″ (DN15 to DN300) |
| cfA pressure class | ANSI Class 150 to Class 600, PN10 to PN40, JIS 10K to 20K |
| cfA seat materials | PTFE |
| cfA ball materials | WCB, F304, F316 |
| cfA spring materials | nickel-chromium alloy X-750 |
| cfA stem materials | F6a, F304, F316 |
| cfA bolt materials | A193 B7 |
| cfA nut materials | A194 2H |
| cfA gasket materials | Graphite+304 |
| cfA packing materials | Graphite+304 |
| cfA packing seat materials | A182 F6a |
| cfA operation | Manual, Lever, Worm gear, Pneumatic, Motorized, Electric automatic |
| nfA operation | Quarter-turn, 90° opening and closing for isolation |
| nfA end connections | Flanged |
| nfA seat materials | RPTFE, PEEK |
| wfA design standards | API 6D |
| wfA body materials | ASTM A216 WCB |
| wfA bonnet design | Bolted bonnet, split body design, RF end, gear operated |
| wfA range size | 2 - 32 Inch (DN50 - DN800) |
| wfA range end connections | BW, Flange |
| wfA range pressure class | Class 150 - 2500 LB (PN16 - PN420) |
| wfA temperature range | -29°C to +429°C |
| wfA face to face | ASME B16.10 |
| wfA testing standards | API 598 |
Ordering & documentation
Documents
Ask for the documentation set with the inquiry — typical items (material certificates, test reports to the listed inspection standard, dimensional drawings) are confirmed and supplied with the quotation.
Quotation
Send the medium, temperature, pressure, size and connection for a quotation-ready inquiry. Lead time, MOQ and price are confirmed at quotation, together with the documents to be supplied with the order.
Sample & supply
Supply terms, order quantities and lead time are agreed per order — state the destination country and required schedule with the inquiry.
Storage & shipping
Store valves with seats and seals protected from UV, ozone and deformation, and keep end-face protectors on until installation; storage limits and shipping arrangements for the selected materials are confirmed at quotation.
Frequently asked questions
What standards govern the design and testing of floating ball valves?
The published specification for this family lists API 6D, ASME B16.34, BS5351, API 608, MSS SP-72 as the design standards. Testing follows API 598, API 6D, MSS.
What sizes and pressure ratings are available for floating ball valves?
The published size range is DN15 to DN200, and the published pressure ratings are Class 150 to 600 (PN16 to PN100). Availability of a specific size and rating is confirmed at quotation.
What materials are floating ball valves available in?
The published specification lists body materials: WCB, CF8, CF8M, F304, F316, LF2, F22. Material availability for a specific size and rating is confirmed at quotation.
What working temperature range do floating ball valves cover?
The published working temperature range is -46°C to +200°C. For a medium at the edge of the range, confirm the suitability of the selected seat and body materials at quotation.
What end connections do floating ball valves support?
The published specification lists RF, RTJ, BW as the available end connections. The connection for a specific size is confirmed at quotation.
What should a quotation inquiry for floating ball valves include?
The governing standard and class, nominal size, body and seat materials, the service medium with temperature, and the destination — anything missing is confirmed during quotation.
Knowledge: selection guides
Models & executions in this subtype
Model
Forged Floating Ball Valves
Forged floating ball valves are the forged-body execution of the floating principle: line pressure seats the ball against the downstream seat, and the forged A1
View specifications →Model
Cast Floating Ball Valves
Cast floating ball valves are the cast-body execution of the floating-ball principle: line pressure pushes the bored ball onto the downstream seat, so sealing f
View specifications →Model
A182 F316L Floating Ball Valves
A concrete SKU in the SS316L floating-ball axis: ASTM A182 Grade F316L forged body, full bore, floating-ball seating, RPTFE seat, Class 800, 1 inch, socket-weld
View specifications →Model
SS316L Three-Piece Floating Ball Valves
The three-piece 304/316L stainless floating-ball execution at the sanitary end of the ball-valve family: 1.4401/304 or 1.4404/316L body, FDA-listed PTFE seal, 0
View specifications →Request a quote for floating ball valves
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Preparing a larger or non-standard requirement? The Floating Ball Valves quotation guide explains what to include, the standard ranges and custom options, and the documents to attach.
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