1″-800LB-Nipples 3-Piece Vacuum Floating Ball Valve
Description
TECHNICAL DATA SHEET
1″-800LB-Nipples 3-Piece Vacuum Floating Ball Valve
| Item | Description |
|---|---|
| Product Name | 1″ Class 800 3-Piece Vacuum Floating Ball Valve |
| Model | 1″-800LB-VACUUM-FLOATING-BALL |
| Nominal Size | 1 inch (DN25) |
| Pressure Class | Class 800 LB (PN130 / approx. 2000 PSI) |
| Construction | 3-Piece Body / Floating Ball |
| End Connection | Nipples (NPT male thread) |
| Body Material | To be specified (Options: A105 carbon steel / F304/F316 stainless steel / others) |
| Service Condition | High vacuum systems, gas / liquid media |
I. Design Basis
| Parameter | Standard / Description |
|---|---|
| Design Standard | ASME B16.34 / API 608 / API 6D |
| End Connection Standard | ASME B1.20.1 (NPT) |
| Inspection & Testing | API 598 / Helium leak test for vacuum |
| Vacuum Service Rating | Suitable for high vacuum (down to 10⁻⁶ mbar) |
II. Technical Specifications
| Parameter | Description |
|---|---|
| Valve Type | Floating ball, 3‑piece design |
| Flow Path | Full bore |
| Working Pressure | Positive: up to Class 800 LB; Vacuum: down to 10⁻⁶ mbar |
| Suitable Media | Vacuum systems, gases, liquids, clean room applications |
| Temperature Range | Depends on seat and body material: – PTFE seats: -29°C ~ +150°C – PEEK seats: -29°C ~ +250°C |
| Operation | Lockable handle (standard) / pneumatic actuator / electric actuator (optional) |
| Anti-static Device | Compliant with API 608 (standard) |
| Blow-out Proof Stem | Standard |
| Cavity Relief | Self-relieving seat design |
III. Bill of Materials (Typical Options)
| Part Name | Common Material Options |
|---|---|
| Main Body & End Caps | A105 carbon steel / F304 stainless steel / F316 stainless steel |
| Ball | Same as body + hard chrome plating / electroless nickel plating (optional) |
| Stem | Stainless steel (304/316) / 17-4PH |
| Main Seat | PTFE / RPTFE / PEEK (vacuum grade) |
| Stem Seal / Packing | PTFE / Graphite (low outgassing) |
| Body Gasket | Stainless steel + graphite spiral wound / PTFE |
| Anti-static Spring | Stainless steel |
| Studs / Nuts | A193 B7 / A194 2H (for carbon steel body); 304/316 (for stainless steel body) |
| Handle | Carbon steel (with plastic grip) / Stainless steel |
Note: Final material selection must conform to valve nameplate or manufacturer’s material certificate.
IV. Dimensions & Weight (Reference)
| Size | Pressure Class | Connection | Face-to-Face L (mm) | Overall Height H (mm) | Handle Length W (mm) | Weight (kg) |
|---|---|---|---|---|---|---|
| 1″ | Class 800 | NPT | ~120 | ~65 | ~160 | ~1.2 (carbon steel / stainless steel) |
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Face-to-face dimensions per ASME B16.10 or manufacturer’s standard.
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NPT threads conform to ASME B1.20.1.
V. Vacuum Performance
| Parameter | Specification |
|---|---|
| Vacuum Range | 1.3×10⁻⁷ Pa ~ 6×10⁵ Pa (high vacuum to positive pressure) |
| Vacuum Leak Rate | ≤1.3×10⁻⁹ Pa·m³/s (helium leak test) |
| Temperature Range (Vacuum) | -30°C ~ +150°C (with PTFE seats) |
| Cycle Life | ≥20,000 cycles |
| Mounting Orientation | Any |
VI. Key Features
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3-Piece Body Construction – Inline maintenance; internal seals and ball can be replaced without removing the valve from the pipeline.
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Floating Ball Design – Line pressure pushes the ball against the downstream seat, ensuring bidirectional sealing.
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Vacuum Suitability – Passes helium leak test with extremely low leak rate, suitable for high vacuum systems.
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Anti-static Device – Electrical continuity between ball, stem and body (resistance ≤10Ω) prevents static build-up.
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Blow-out Proof Stem – Bottom‑mounted stem with blow‑out proof design for safety.
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Full Bore – Low flow resistance and pressure drop.
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Multiple Material Options – Available in carbon steel, 304/316 stainless steel, duplex stainless steel, etc., for various corrosive media.
VII. Applications
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Petrochemical pipelines
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Vacuum coating, semiconductor equipment
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Laboratory high vacuum apparatus
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Pharmaceutical & bio‑engineering
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Food & beverage sanitary lines
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Power & energy
VIII. Testing & Inspection
| Test Item | Standard | Requirement |
|---|---|---|
| Shell Strength Test | API 598 | 1.5× rated pressure, no visible leakage |
| Low Pressure Seat Test | API 598 | 0.6 MPa air, no visible bubbles |
| High Pressure Seat Test | API 598 | 1.1× rated pressure, zero leakage across seats |
| Vacuum Leak Test | Helium mass spectrometry | ≤1.3×10⁻⁹ Pa·m³/s |
| Factory Testing | 100% pressure tested | Each valve with unique serial number and quality tag |
IX. Ordering Information
To ensure correct selection, please provide the following when ordering:
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Nominal size (1″)
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Pressure class (Class 800)
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Body and trim material requirement (critical: specify e.g. A105 or 316SS)
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End connection type (NPT / SW / BW)
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Medium and temperature range
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Vacuum requirement (working vacuum and allowable leak rate)
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Actuation type (manual / pneumatic / electric)
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Any additional requirements (fire safe, low emission, cleanliness level, etc.)
X. Remarks
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This technical data sheet applies to 1″-800LB-Nipples 3-Piece Vacuum Floating Ball Valve with unspecified material. The user shall refer to the actual valve nameplate or material certificate.
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For a detailed data sheet with a specific material (e.g. A105 or F316), the above can be supplemented with corresponding material parameters.
