DN40-PN16-RF Y Pattern Bellows Seal Globe Valve

DN40-PN16-RF Y Pattern Bellows Seal Globe Valve

Valve Type Y Pattern Globe Valve (Oblique Pattern, Rising Stem)
Nominal Size DN40 (1-1/2 inches)
Pressure Rating PN16 (Class 150)
Connection Type Flanged Ends with Raised Face (RF)
Special Design Bellows Seal (Hermetic stem sealing)
Body / Bonnet Material Cast Steel / Stainless Steel (Typically WCB / CF8 / CF8M, to be specified)
Operation Handwheel (Manual) / Gearbox optional

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Technical Datasheet

Product Name: Y Pattern Bellows Seal Globe Valve
Model: DN40-PN16-RF Y Pattern Bellows Seal Globe Valve

  1. General Information

Item

مشخصات

نوع شیر

Y Pattern Globe Valve (Oblique Pattern, Rising Stem)

اندازه اسمی

DN40 (1-1/2 inches)

رتبه‌بندی فشار

PN16 (Class 150)

Connection Type

Flanged Ends with Raised Face (RF)

Special Design

Bellows Seal (Hermetic stem sealing)

Body / Bonnet Material

Cast Steel / Stainless Steel (Typically WCB / CF8 / CF8M, to be specified)

عملیات

Handwheel (Manual) / Gearbox optional

  1. Technical Specifications

Item

مشخصات

رتبه‌بندی فشار

PN16 (16 bar / 232 psi)

Shell Test Pressure

24 bar (2.4 MPa / 348 psi)

Seal Test Pressure

17.6 bar (1.76 MPa / 255 psi)

Design Temperature

-29°C to +425°C (Depending on body and seat materials)

Applicable Media

Steam, Thermal Oil, Water, Gas, Corrosive Fluids, and applications requiring zero fugitive emissions

Flow Path

Y Pattern (Oblique) – Reduced flow resistance compared to standard globe valves

  1. Main Material of Parts

Part Name

مواد

Material Grade (Reference)

بدن

Cast Carbon Steel / SS

ASTM A216 WCB / A351 CF8 (304) / CF8M (316)

Bonnet

Cast Carbon Steel / SS

ASTM A216 WCB / A351 CF8 / CF8M

Disc / Plug

Stainless Steel + Hard-facing

13Cr (AISI 410) / F304 / F316 with Stellite 6 hard-facing (optional)

ساقه

Stainless Steel

ASTM A276 410 / 304 / 316

Bellows Assembly

Stainless Steel

ASTM A240 304 / 316L (Multi-ply, fully welded)

Seat Ring

Stainless Steel + Hard-facing

13Cr / 304 / 316 with Stellite 6 hard-facing (integral or welded)

Gland Packing

Flexible Graphite

High-density graphite with anti-extrusion rings

Gasket

Spiral Wound / Graphite

304SS + Flexible Graphite / PTFE

Bonnet Bolts / Studs

Alloy Steel / SS

ASTM A193 B7 / A193 B8

Flange Gasket Surface

Raised Face (RF) per ASME B16.5 / EN 1092-1

Handwheel

Cast Iron / Carbon Steel

  1. Main Dimensions & Connection Data (Unit: mm)

*Note: Flange dimensions conform to ASME B16.5 (Class 150) or EN 1092-1 (PN16).*

اندازه (قطر)

Flange Standard

Face to Face (End to End) (L)

Flange OD (D)

Bolt Circle Dia (K)

Number of Bolts

Bolt Hole Dia

Center to Top Height (H) approx.

Handwheel Dia (W) approx.

DN40

ASME B16.5 Class 150

200 mm (Y Pattern typical)

127 mm

98.5 mm

4

16 mm

Varies by design

Varies by design

DN40

EN 1092-1 PN16

200 mm (Y Pattern typical)

150 mm

110 mm

4

18 mm

Varies by design

Varies by design

Note: Dimensions above are typical. Y pattern valves have a longer face-to-face dimension compared to straight pattern globe valves. Final dimensions should be based on approved manufacturer drawings.

  1. Applicable Design Standards
  • Design & Manufacture: BS 1873 / API 623 / ASME B16.34
  • Face-to-Face Dimensions: ASME B16.10 / EN 558 (Y pattern specific)
  • Flange Dimensions: ASME B16.5 (Class 150) / EN 1092-1 (PN16)
  • Pressure-Temperature Rating: ASME B16.34 / EN 1092-1
  • Inspection & Testing: API 598 / EN 12266
  • Bellows Design: ISO 15761 / BS 6364 (adapted for low-pressure applications)
  1. Product Features
  1. Y Pattern (Oblique) Design: The seat and stem are angled at approximately 45–60 degrees to the pipe axis, significantly reducing flow resistance (lower pressure drop) compared to standard globe valves while maintaining good throttling and shut-off capabilities.
  2. Bellows Seal: Fully welded stainless steel bellows provides a hermetic seal, eliminating fugitive emissions and ensuring zero stem leakage. This is critical for steam, thermal oil, and hazardous media applications.
  3. Raised Face Flanged Ends: Standard RF flanges ensure reliable, leak-free connections compatible with ASME or EN piping systems.
  4. PN16 Pressure Rating: Suitable for low to medium pressure applications commonly found in HVAC, steam distribution, and industrial processing.
  5. Hard-Faced Trim (Optional): Stellite hard-facing on seat and disc surfaces provides excellent wear resistance and tight shut-off for demanding services.
  6. Backseat Feature: Allows for packing replacement under pressure (when valve is fully open), enhancing safety and reducing maintenance downtime.
  7. Low Fugitive Emissions: The combination of bellows seal and secondary graphite packing ensures compliance with stringent environmental regulations (ISO 15848-1 optional).
  8. Versatile Material Options: Available in carbon steel (WCB) for general service or stainless steel (CF8/CF8M) for corrosive media.

Remarks:

  • Material Selection: Specify body material based on media:
    • WCB: Water, oil, steam, non-corrosive services
    • CF8 (304): Mildly corrosive services
    • CF8M (316): Highly corrosive services, chlorides, and marine applications
  • Y Pattern Advantage: The angled design minimizes flow turbulence and pressure drop, making it ideal for applications requiring continuous flow with occasional throttling.
  • Bellows Material: For high-temperature steam applications (above 300°C), confirm bellows material suitability (316L is standard; Inconel available for extreme conditions).
  • Flange Standard: Confirm whether ASME B16.5 or EN 1092-1 flanges are required for the specific installation.
  • For specific dimensional data, torque values, and fugitive emission test reports, please refer to the official certified drawings and inspection test plans (ITP) from the manufacturer.

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.