1″-800LB-Nipples 3 Piece Vacuum Ball Valve

1″-800LB-Nipples 3 Piece Vacuum Ball Valve

Nominal Size 1 inch (DN 25)
Pressure Class Class 800LB (equivalent to PN 140 bar)
End Connections Integral Nipples (Socket Weld or Butt Weld) – per ASME B16.11 or ASME B16.25
Body Construction 3-Piece (center body with two end caps)
Valve Type Floating ball, full port or reduced port (as specified)
Stem Sealing Live-loaded packing or PTFE/stainless steel bellows (for vacuum service)
Operation Lever handle (standard), gear operator, or actuator (optional)
Vacuum Rating Suitable for high vacuum (1×10⁻⁶ Torr and above)

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Technical Data Sheet

Product: 3-Piece Vacuum Ball Valve with Nipples
Model / Size: 1″ – 800LB – Nipples
پیکربندی: Three-piece body construction with integral nipples (socket weld or butt weld ends) for vacuum service

  1. Product Description

This valve is a three-piece ball valve specifically designed for vacuum service, featuring integral nipples (short pipe extensions) welded or integrally formed on both ends. The three-piece construction allows for easy in-line maintenance without removing the entire valve from the piping system. The valve is rated for Class 800LB pressure, making it suitable for high-pressure vacuum applications, gas handling, and critical process systems where absolute leak integrity is required. It is ideal for vacuum systems, high-purity gas lines, and high-cycle applications where reliable shut-off is essential.

  1. Basic Parameters

Item

پارامتر

اندازه اسمی

1 inch (DN 25)

Pressure Class

Class 800LB (equivalent to PN 140 bar)

End Connections

Integral Nipples (Socket Weld or Butt Weld) – per ASME B16.11 or ASME B16.25

ساخت بدنه

3-Piece (center body with two end caps)

نوع شیر

Floating ball, full port or reduced port (as specified)

Stem Sealing

Live-loaded packing or PTFE/stainless steel bellows (for vacuum service)

عملیات

Lever handle (standard), gear operator, or actuator (optional)

Vacuum Rating

Suitable for high vacuum (1×10⁻⁶ Torr and above)

  1. استانداردهای طراحی

Item

استاندارد

Design & Manufacture

ASME B16.34 / API 608 (or manufacturer’s standard)

End Connections (Nipples)

ASME B16.11 (Socket Weld) or ASME B16.25 (Butt Weld)

Face-to-Face Dimensions

Manufacturer’s standard (with nipples)

Inspection & Testing

API 598 / ISO 5208; vacuum leak test per ASME PVHO or helium mass spectrometry

Vacuum Testing

Helium leak test with leakage rate ≤ 1×10⁻⁶ Pa·m³/s (or better)

Material Traceability

EN 10204 3.1 (optional)

  1. Bill of Materials (Typical Configuration)

Part Name

Material (Typical Options)

اظهارات

Body (Center)

A105 / A182 F316 / A182 F304

Forged steel or stainless steel

End Caps (x2)

A105 / A182 F316 / A182 F304

Same material as body

Nipples (x2)

A106 Gr.B / A312 TP316

Integral or welded extensions

توپ

A182 F316 / A182 F304

Chrome plated or electropolished for vacuum service

Seats

PTFE / Reinforced PTFE / PEEK

Low outgassing materials for vacuum

ساقه

A182 F316 / A182 F304

Precision machined

Stem Packing / Seals

PTFE / Graphite / Bellows (optional)

Low leakage, vacuum-rated

Body Seals (End Caps)

PTFE / Spiral wound gasket

Vacuum-tight sealing

Handle / Operator

Stainless steel / Carbon steel

Locking handle option available

  1. Dimensions & Weight (Reference)

Item

Value

Overall Length (End-to-End)

Approx. 200 ~ 250 mm (including nipples, manufacturer dependent)

Overall Height

Approx. 100 ~ 120 mm (lever type)

Nipple Length (each)

Approx. 50 ~ 75 mm (varies by manufacturer)

Nipple End Type

Socket Weld (per ASME B16.11) or Butt Weld (per ASME B16.25)

Approx. Weight

4.5 ~ 7.5 kg (depending on material and nipple length)

Note: Dimensions and weights are typical values and may vary by manufacturer.

  1. Operating Conditions

Item

پارامتر

Suitable Media

Vacuum, gases, high-purity fluids, corrosive media, cryogenic liquids

Vacuum Rating

1×10⁻⁶ Torr (higher vacuum achievable with bellows seal and metal seats)

Temperature Range (PTFE Seats)

-29°C ~ 180°C

Temperature Range (PEEK Seats)

-29°C ~ 250°C

Temperature Range (Graphite Packing)

-29°C ~ 425°C (with metal seats)

Max. Allowable Pressure

Approx. 13.8 MPa (138 bar) at ambient temperature (38°C)

Leakage Rate (Vacuum)

≤ 1×10⁻⁶ Pa·m³/s (helium mass spectrometry)

  1. Testing & Inspection

Test

Requirement

Shell Strength Test

1.5 times rated pressure (hydrostatic); no leakage

High-Pressure Seat Test

1.1 times rated pressure; zero visible leakage (tight shut-off)

Low-Pressure Pneumatic Test

0.6 MPa compressed air; seat and stem leakage within allowable limits

Vacuum Leak Test

Helium mass spectrometry; leakage rate ≤ 1×10⁻⁶ Pa·m³/s (or as specified)

Operational Test

Full cycle test (opening/closing) under pressure and vacuum conditions

Material Verification

Positive Material Identification (PMI) on critical components

Cleanliness

Degreased and cleaned for oxygen or high-purity service (as required)

  1. Features & Benefits
  1. Vacuum Service Optimized: Low outgassing materials, helium leak-tested, and precision-machined components ensure high vacuum integrity.
  2. Three-Piece Construction: Allows for in-line maintenance – end caps can be removed to access ball and seats without disturbing pipe connections.
  3. Integral Nipples: Pre-welded or integrally formed nipples simplify field installation, reducing welding points and potential leak paths.
  4. High Pressure Capability: Class 800 rating suitable for high-pressure gas and liquid systems, including hydraulic and pneumatic applications.
  5. Tight Shut-Off: PTFE or PEEK seats provide zero-leakage sealing in both directions.
  6. Low Operating Torque: Smooth ball and seat surfaces ensure easy operation, even under differential pressure.
  7. Locking Handle (Optional): Prevents unauthorized operation – essential for safety-critical systems.
  8. Fugitive Emission Compliance: Stem sealing can be designed to meet ISO 15848 or TA-Luft standards.
  1. Important Notes
  • Vacuum Service: For ultra-high vacuum (UHV) applications, specify metal seats and bellows stem seal to achieve leakage rates below 1×10⁻⁹ Pa·m³/s.
  • Installation: The valve may be installed in any orientation. Ensure proper support for piping to avoid stress on the valve body.
  • Cleaning: For oxygen service or high-purity vacuum applications, the valve must be specified with degreasing and cleaning per ASTM G93 or CGA G-4.1.
  • Nipple Ends: Confirm whether nipples are socket weld (SW) or butt weld (BW) to match piping specifications. Socket weld nipples require fillet welding; butt weld nipples require full penetration butt welds.
  • Maintenance: When replacing seats or seals, use manufacturer-approved kits to maintain vacuum integrity.
  • Material Compatibility: Verify seat and seal materials are compatible with the process media to prevent swelling, degradation, or outgassing.

If you require additional specifications such as NACE MR0175oxygen cleaninghigh-temperature bellows seal, or actuator mounting, please let me know and I can supplement the data sheet accordingly.

ضمانت:

شرکت SAVVY VALVES متعهد به ارائه کیفیت استثنایی محصول و خدمات پس از فروش بدون نگرانی است. شیرهای ما حداقل ۱۲ ماه عمر مفید دارند که در این مدت، تمام قطعات یدکی لازم و دستورالعمل‌های دقیق تعمیر و نگهداری را به صورت رایگان ارائه خواهیم داد. در طول دوره گارانتی، در صورت بروز هرگونه آسیب غیر انسانی، قطعات را بدون هیچ هزینه‌ای تعویض کرده و پشتیبانی فنی حرفه‌ای ارائه می‌دهیم. پس از انقضای گارانتی، مشتریان فقط باید هزینه قطعات یدکی را بپردازند، در حالی که همچنان از خدمات تعمیر و نگهداری با تخفیف بهره‌مند می‌شوند. هدف ما کمک به مشتریان برای کاهش هزینه‌های عملیاتی و افزایش بهره‌وری تولید از طریق کیفیت قابل اعتماد و پشتیبانی جامع پس از فروش است. چه برای سوالات فنی و چه برای نیازهای تعمیر و نگهداری، تیم متخصص ما به سرعت پاسخ خواهد داد تا اطمینان حاصل شود که سیستم شیر شما در هر زمان عملکرد بهینه خود را حفظ می‌کند.

اگر به محصولات ما علاقه‌مند هستید، می‌توانید اطلاعات خود را اینجا بگذارید و ما به زودی با شما تماس خواهیم گرفت.