DN80-PN40-RF Soft Seated Floating Ball Valve
DN80-PN40-RF Soft Seated Floating Ball Valve - Image 2
DN80-PN40-RF Soft Seated Floating Ball Valve - Image 3
DN80-PN40-RF Soft Seated Floating Ball Valve - Image 4

DN80-PN40-RF Soft Seated Floating Ball Valve

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Description

Technical Data Sheet

Product: DN80 – PN40 Flanged Soft Seated Floating Ball Valve
Model: [To be specified]

1. Product Description

This flanged floating ball valve features a soft‑seated design, providing excellent bidirectional shut‑off performance. Compact construction, low operating torque, and fast quarter‑turn operation make it suitable for a wide range of applications in oil, gas, petrochemical, water treatment, pharmaceutical, and general industrial services for on‑off control.

2. Main Technical Parameters

Parameter Value / Description
Nominal Size DN80
Pressure Rating PN40 (4.0 MPa / 40 bar)
End Connection Flanged, Raised Face (RF) — EN 1092‑1 / ASME B16.5 or equivalent
Body Construction Floating ball, two‑piece or three‑piece design
Temperature Range –29°C ~ +150°C (depending on seat material)
Applicable Media Water, oil, gas, mild corrosive fluids, etc.
Flange Standard EN 1092‑1 PN40 / ASME B16.5 Class 300 (customer specified)
Face‑to‑Face EN 558 Series 1 / ASME B16.10

3. Bill of Materials (Typical)

No. Part Name Standard Material Optional Material
1 Body WCB (Carbon Steel) CF8 / CF8M (Stainless Steel), CF3M (L-grade)
2 Ball A182 F304 / F316 Chrome plated, hardfaced coating
3 Seat PTFE (Polytetrafluoroethylene) RPTFE (Reinforced PTFE), PEEK, Nylon
4 Stem A182 F304 / F316 17‑4PH, Monel
5 Packing PTFE V‑ring set Flexible graphite
6 Body Gasket PTFE / Spiral wound (SS + graphite) Metal ring gasket
7 Operator Lever (with locking device) Gear operator, pneumatic/electric actuator

4. Key Features

  1. Soft Seating

    • PTFE or reinforced PTFE seats offer excellent self‑lubrication and tight shut‑off (zero leakage).

    • Low friction torque, smooth operation, and extended service life.

  2. Blow‑out Proof Stem

    • Stem is inserted from inside the body, preventing ejection under pressure, ensuring safety even in abnormal pressure conditions.

  3. Antistatic Device (Optional)

    • Grounding springs provide electrical continuity between ball, stem, and body to prevent static charge buildup in hazardous environments.

  4. Bidirectional Sealing

    • Floating ball design allows equal sealing in both directions; no orientation limitation.

  5. Fire Safe Design (Optional)

    • Conforms to API 607 / ISO 10497. In case of soft seat burnout, secondary metal‑to‑metal sealing maintains basic integrity.

5. Dimensions & Weight (Reference)

Values are typical for EN 1092‑1 PN40 RF flanges. Final dimensions to be confirmed from certified GA drawings.

Item Dimension (mm)
Nominal Size DN80
Face‑to‑Face (L) Approx. 280 mm (EN 558 Series 1)
Flange Outer Diameter (D) Approx. 200 mm
Flange Thickness (b) Approx. 24 mm
Bolt Circle Diameter (K) Approx. 160 mm
Bolt Hole Diameter (d) Approx. 18 mm
Number of Bolt Holes 8
Overall Height (H) (open) Approx. 200 – 250 mm (lever operated)
Approx. Weight 18 – 25 kg (lever operated)

6. Design & Manufacturing Standards

Standard Description
Design GB/T 12237, API 608, API 6D, ASME B16.34
Pressure‑Temperature Rating GB/T 12224, ASME B16.34
Face‑to‑Face GB/T 12221, EN 558, ASME B16.10
Flange Connections GB/T 9113, EN 1092‑1, ASME B16.5 (as specified)
Inspection & Testing GB/T 13927, API 598, ISO 5208

Testing:

  • Shell strength test: 1.5 × rated pressure

  • Low‑pressure seat test: 0.6 MPa

  • High‑pressure seat test: 1.1 × rated pressure

7. Ordering Information

Please specify the following when placing an order:

  1. Media and operating temperature — determines seat and packing materials

  2. Flange standard and facing — EN / ASME / GB; RF / FF / RTJ, etc.

  3. Body and trim materials — based on corrosion resistance requirements

  4. Actuation type — lever, gear, pneumatic, electric, etc.

  5. Special requirements — antistatic, fire safe, NACE, ATEX, etc.

  6. Additional documentation — material test reports (EN 10204 3.1), pressure test reports, NDT reports, etc.

Disclaimer: This technical data sheet is for reference only. Final product dimensions, materials, and specifications may vary based on actual service conditions and manufacturing processes. Please refer to the approved engineering drawings and the final purchase agreement.

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