1″-800LB Vacuum Floating Ball Valve
Description
TECHNICAL DATA SHEET
Product Name: 1-inch 800LB Stainless Steel Vacuum Floating Ball Valve
Model/Specification: 1″-800LB-VACUUM-BALL
Valve Type: Floating Ball Valve (Vacuum Service)
Connection Type: Threaded (NPT) / Butt Weld (BW) / Socket Weld (SW) User specified
1. Basic Design Parameters
| Parameter | Standard/Specification |
|---|---|
| Size | 1 inch (DN25) |
| Pressure Class | Class 800 LB (PN130 / 2000 PSI) |
| Body Material | Stainless Steel (ASTM A182 F304 / F316 / F316L) |
| Manufacturing Process | Forged Steel (Close Die Forged) |
| Design Standard | ASME B16.34 / API 608 / API 6D |
| End Connection Standard | ASME B1.20.1 (NPT) / ASME B16.25 (BW) / ASME B16.11 (SW) |
| Face to Face Standard | Manufacturer Standard |
| Test & Inspection Std. | API 598 / ISO 5208 / Vacuum Leak Test (Helium) |
| Vacuum Service Compliance | Designed for high vacuum applications (up to 10⁻⁶ mbar) |
| Fire-Safe Design | API 607 / ISO 10497 (Optional) |
| Fugitive Emission | ISO 15848-1 (Optional) |
2. Technical Specifications
| Parameter | Details |
|---|---|
| Valve Type | Floating Ball, 3-Piece Construction (Standard) |
| Bonnet Type | Bolted Bonnet, Side Entry |
| Bore Type | Full Bore |
| Service Pressure | Positive Pressure: Up to 800 LB (PN130) / Vacuum Service: Down to 10⁻⁶ mbar |
| Applicable Media | High vacuum systems, Gases, Liquids, Clean room applications |
| Temperature Range | -29°C to +150°C (Standard seats) / Up to +300°C (High temp seats) |
| Operation | Lever Handle (Lockable) / Gearbox / Pneumatic Actuator / Electric Actuator |
| Anti-Static Device | API 608 Requirement (Standard) |
| Blow-Out Proof Stem | Standard |
| Cavity Pressure Relief | Self-relieving seat design (upstream/downstream) |
3. Material of Construction (Recommended – Stainless Steel for Vacuum Service)
| Part Name | Material | Standard/Grade |
|---|---|---|
| Body | Forged Stainless Steel | ASTM A182 F304 / F316 |
| End Cap | Forged Stainless Steel | ASTM A182 F304 / F316 |
| Ball | Stainless Steel (Hardened) | ASTM A182 F304 / F316 (Chrome plated optional for wear resistance) |
| Stem | Stainless Steel | ASTM A182 F304 / F316 (Blow-out proof) |
| Seat Seal (Primary) | RPTFE / PTFE / PEEK | Reinforced PTFE for vacuum integrity |
| Stem Seal / Packing | RPTFE / Graphite | Low outgassing materials for vacuum |
| Body Gasket | Stainless Steel + Graphite | Spiral Wound / Reinforced |
| Anti-Static Device | Stainless Steel Ball + Spring | 316 SS |
| Body Bolts/Nuts | Stainless Steel | ASTM A193 B8 / A194 8 |
| Handle / Lever | Stainless Steel | ASTM A182 F304 |
4. Main Dimensions & End Connection Details
*Note: Dimensions are for 1″ 3-Piece Floating Ball Valve with Threaded Ends (NPT). BW/SW dimensions may vary by manufacturer.*
4.1 End-to-End Dimensions (Threaded – 3-Piece Construction)
| Size | Pressure Class | Connection | L (mm) | L (in) | H (Open) mm | H (Open) in | W (Handle) mm | W (Handle) in | Weight (kg) | Weight (lbs) |
|---|---|---|---|---|---|---|---|---|---|---|
| 1″ | 800LB | 1″ NPT | ~120 | ~4.72 | ~65 | ~2.56 | ~160 | ~6.30 | ~1.2 | ~2.6 |
*Note: 3-piece construction allows for easy maintenance and removal from the pipeline without disturbing pipe ends.*
4.2 End Preparation Details (Per ASME Standards)
| Connection Type | Standard | Details |
|---|---|---|
| Threaded (NPT) | ASME B1.20.1 | Tapered pipe threads, 1″ NPT Female |
| Butt Weld (BW) | ASME B16.25 | Bevel Angle: 37.5°, Root Face: 1.6 mm, Counterbore to match pipe schedule |
| Socket Weld (SW) | ASME B16.11 | Socket depth per standard, Bore diameter to match pipe |
5. Pressure-Temperature Rating (ASME B16.34 / Class 800)
*Material Group: Stainless Steel (A182 F304/F316) with RPTFE seats *
| Temperature (°C) | Working Pressure (bar) | Working Pressure (psi) | Notes |
|---|---|---|---|
| -29 to 38 | 130 | 1885 | Maximum Rating (800LB / PN130) |
| 100 | 124 | 1800 | |
| 150 | 111 | 1610 | Maximum for RPTFE seats |
| 200 | 97 | 1405 | With high temp seats (PEEK) |
| 250 | 85 | 1230 | With high temp seats |
| 300 | 70 | 1015 | With high temp seats |
Note: For vacuum service, the valve is rated for differential pressure up to full vacuum (0 bar absolute) in either direction.
6. Vacuum Service Specifications
| Parameter | Value |
|---|---|
| Vacuum Rating | 10⁻⁶ mbar (High vacuum) |
| Leak Rate (Helium Test) | < 1 x 10⁻⁶ mbar·L/s |
| Outgassing Characteristics | Low outgassing materials (Stainless Steel + PTFE/RPTFE) |
| Bakeout Temperature | Up to 150°C (with valve open, seats removed if required) |
| Pressure Direction | Bidirectional (suitable for vacuum in either direction) |
7. Flow Characteristics (1″ – Full Bore)
| Parameter | Value |
|---|---|
| Port Diameter (Full Bore) | ~25 mm (0.98 in) (typical for 1″ Class 800) |
| Flow Coefficient Cv (US gal/min) | ~35 – 40 (typical for 1″ full bore ball valve) |
| Flow Coefficient Kv (m³/h) | ~30 – 35 |
8. Test Pressure (API 598 + Vacuum Test)
| Test Type | Medium | Pressure (bar) | Pressure (psi) | Acceptance Criteria |
|---|---|---|---|---|
| Shell Test (Hydrostatic) | Water | 195 | 2828 | 1.5 x 38°C Rating (no visible leakage) |
| High-Pressure Seat Test | Water | 143 | 2074 | 1.1 x 38°C Rating (Rate A per API 598) |
| Low-Pressure Seat Test | Air / N2 | 5.5 – 7.0 | 80 – 100 | Bubble-tight |
| Vacuum Leak Test | Helium | Vacuum (10⁻³ mbar) | — | Mass spectrometer test, < 1 x 10⁻⁶ mbar·L/s |
9. Features & Applications
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Key Features:
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Vacuum Service Compatibility: Specially designed for high vacuum applications down to 10⁻⁶ mbar, with helium leak testing to verify integrity.
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Double Block & Bleed: 3-piece design allows for positive isolation and safe maintenance.
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Low Outgassing Materials: Stainless steel body with RPTFE/PTFE seats minimizes contamination of vacuum systems .
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Full Bore Design: Minimal pressure drop and easy system evacuation .
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Blow-out Proof Stem: Ensures stem retention under all pressure conditions .
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Anti-Static Device: Dissipates static charge, critical for vacuum systems where static buildup can occur .
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Fire-Safe Design: Optional API 607 certification ensures sealing integrity in case of fire.
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Forged Body: Provides superior strength and reliability at high pressures and vacuum conditions .
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3-Piece Construction: Allows for easy maintenance and in-line repair without removing pipe ends .
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Lockable Handle: Provides safety lockout capability for maintenance .
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Main Applications:
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Semiconductor Manufacturing: Vacuum processing chambers and gas delivery systems.
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Research Laboratories: High vacuum experimental setups.
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Pharmaceutical Industry: Freeze drying (lyophilization) systems.
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Analytical Instruments: Mass spectrometers, electron microscopes.
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Space Simulation: Vacuum chambers for testing.
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Coating Industries: PVD/CVD vacuum coating systems.
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General Vacuum Systems: Where reliable isolation from atmosphere is required.
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Disclaimer: The above data is prepared based on common standards for vacuum service ball valves. Specific dimensions, materials, and pressure ratings may vary by manufacturer. Vacuum performance should be verified with the manufacturer for the specific application requirements. The final technical agreement shall prevail.
