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DN25-PN25 Top Entry Floating Ball Valve

DN25-PN25 Top Entry Floating Ball Valve

Size DN25 (1 inch)
Pressure Class PN25 (25 bar / 360 PSI)
Body Material Forged Stainless Steel (ASTM A182 F304/F316) / Forged Carbon Steel (A105) User specified
Manufacturing Process Forged Steel / Cast Steel (depending on manufacturer)
Design Standard API 608 / API 6D / ISO 17292 / ASME B16.34
End Connection Standard EN 1092-1 (Flanged) / ASME B16.25 (BW) / ASME B1.20.1 (NPT)
Face to Face Standard EN 558-1 / ISO 5752 / API 6D / ASME B16.10
Test & Inspection Std. API 598 / EN 12266-1 / ISO 5208
Fire-Safe Design API 607 / ISO 10497 (Optional)
Fugitive Emission ISO 15848-1 (Optional)

TECHNICAL DATA SHEET

Product Name: DN25 PN25 Top Entry Floating Ball Valve
Model/Specification: DN25-PN25-TOPENTRY-FLOAT
نوع شیر: Top Entry Floating Ball Valve
Connection Type: Flanged (RF) / Butt Weld (BW) / Threaded (NPT) User specified

  1. Basic Design Parameters

پارامتر

Standard/Specification

اندازه

DN25 (1 inch)

Pressure Class

PN25 (25 bar / 360 PSI)

جنس بدنه

Forged Stainless Steel (ASTM A182 F304/F316) / Forged Carbon Steel (A105) User specified

Manufacturing Process

Forged Steel / Cast Steel (depending on manufacturer)

Design Standard

API 608 / API 6D / ISO 17292 / ASME B16.34

End Connection Standard

EN 1092-1 (Flanged) / ASME B16.25 (BW) / ASME B1.20.1 (NPT)

Face to Face Standard

EN 558-1 / ISO 5752 / API 6D / ASME B16.10

Test & Inspection Std.

API 598 / EN 12266-1 / ISO 5208

Fire-Safe Design

API 607 / ISO 10497 (Optional)

Fugitive Emission

ISO 15848-1 (Optional)

  1. Technical Specifications

پارامتر

Details

نوع شیر

Top Entry Floating Ball Valve

Body Type

One-Piece Body with Top Removable Cover

Bonnet Type

Top Flanged Cover / Bolted Bonnet

نوع سوراخ

Full Bore / Reduced Bore (Optional)

Ball Type

Floating Ball (pressure-assisted sealing)

Seat Type

Soft Seat (RPTFE / PTFE / PEEK) – Self-relieving design

Sealing Principle

Upstream sealing – ball floats against downstream seat under pressure

Applicable Media

Water, Oil, Gas, Steam, Corrosive Fluids (depending on material)

محدوده دما

-29°C to +200°C (PTFE/RPTFE seats) / -29°C to +300°C (PEEK seats)

عملیات

Lever Handle / Gearbox / Actuator

دستگاه ضد الکتریسیته ساکن

API 608 / API 6D Requirement (Standard) – Spring-loaded ball between ball and stem

Blow-Out Proof Stem

استاندارد

Cavity Pressure Relief

Self-relieving seat design (automatic pressure relief in ball cavity)

ISO Mounting Pad

ISO 5211 standard mounting for actuator

  1. Material of Construction (Recommended – Stainless Steel)

Part Name

مواد

Standard/Grade

بدن

Stainless Steel

ASTM A182 F304 / F316 (Forged) or A351 CF8/CF8M (Cast)

Top Cover / Bonnet

Stainless Steel

ASTM A182 F304 / F316

توپ

Stainless Steel (Hardened)

ASTM A182 F304 / F316 (Chrome plated optional)

ساقه

Stainless Steel

ASTM A182 F304 / F316 / 17-4PH

Seat Rings

Reinforced PTFE / RPTFE / PEEK

Virgin PTFE / Glass-filled PTFE

Body Gasket

Spiral Wound / Reinforced

Stainless Steel + Graphite / PTFE

Stem Seals / Packing

PTFE / RPTFE / Graphite

Low emission, fire-safe grade

Thrust Bearings

PTFE + Stainless Steel

Self-lubricating

دستگاه ضد الکتریسیته ساکن

Stainless Steel Ball + Spring

316 SS

Body Bolts/Nuts

Stainless Steel

ASTM A193 B8 / A194 8

Handle / Lever

Stainless Steel

With locking device

*For Carbon Steel version (A105): body/bonnet to A105, bolting to A193 B7 / A194 2H.*

  1. Main Dimensions & Connection Details

*Note: Dimensions for DN25 PN25 Top Entry Floating Ball Valve with Flanged Ends (RF). Based on EN 558-1 and industry standards.*

4.1 End-to-End Dimensions (Face-to-Face)

اندازه

Pressure Class

L (mm)

L (in)

H (mm)

H (in)

W (Handle mm)

Weight (kg)

Weight (lbs)

DN25

PN25

150-160

5.9-6.3

~120

~4.7

~160

~4-6

~8.8-13.2

Note: Top entry design adds slightly to overall height compared to side entry valves. Weight varies by manufacturer and material selection.

4.2 Flange Details (Per EN 1092-1 – Type 11 / PN25)

پارامتر

DN25 Flange

Flange Outside Diameter (D)

115 mm

Bolt Circle Diameter (PCD / k)

85 mm

Number of Bolt Holes

4

Bolt Hole Diameter (d2)

14 mm

Bolt Thread Size

M12

Raised Face Height

2 mm

Flange Thickness (C)

16 mm

4.3 End Preparation (Alternative Connections)

Connection Type

استاندارد

Details

Threaded (NPT)

ASME B1.20.1

1″ NPT Female

جوش لب به لب (BW)

ASME B16.25

Bevel prepared ends

Socket Weld (SW)

ASME B16.11

1″ Socket Weld per standard

  1. Pressure-Temperature Rating

*Material Group: Stainless Steel (A182 F304/F316) with PTFE/RPTFE Seats *

Temperature (°C)

Working Pressure (bar)

Working Pressure (psi)

یادداشت‌ها

-29 to 38

25

360

Maximum Rating (PN25)

50

24

348

 

100

22

319

 

150

19

275

Max for standard PTFE

200

16

232

With RPTFE / PEEK seats

250

14

203

With PEEK seats

300

11

160

With PEEK seats

For Carbon Steel (A105): similar ratings up to 425°C with derating.

  1. Test Pressure (API 598 / EN 12266-1)

Test Type

Medium

Pressure (bar)

Pressure (psi)

Acceptance Criteria

Shell Test (Hydrostatic)

Water

38

551

1.5 x PN (no visible leakage)

High-Pressure Seat Test

Water

27.5

399

1.1 x PN (Zero leakage – soft seats)

Low-Pressure Seat Test

Air / N2

5.5 – 6.0

80 – 87

Bubble-tight

  1. Flow Characteristics (DN25 – Full Bore)

پارامتر

Value

Port Diameter (Full Bore)

~25 mm (0.98 in) (typical)

Flow Coefficient Cv (approx)

~30 – 40 (typical for 1″ full bore ball valve)

Flow Coefficient Kv (approx)

~26 – 35

Flow Characteristic

Quick Opening (On-Off)

Shut-off Class

API 598 / ISO 5208 Rate A (Zero Leakage)

  1. Top Entry Design Advantages

Feature

Benefit

In-Line Maintenance

Valve internals (ball, seats, stem) can be removed through top cover without removing valve body from pipeline

One-Piece Body

Eliminates body joint leak paths (unlike 2-piece or 3-piece designs)

Reduced Downtime

Maintenance performed without disturbing pipe connections

Lower Lifecycle Cost

Easier repair and seat replacement

Compact Design

Shorter face-to-face compared to side entry designs

Ideal for Welded Systems

Perfect for welded pipelines where valve removal is difficult

  1. Features & Applications
  • Key Features:
    • Top Entry Design: Allows complete in-line access to valve internals for maintenance without removing the valve body from the pipeline – reduces downtime and maintenance costs .
    • Floating Ball Design: Ball floats against downstream seat under pressure, providing tight, leak-proof sealing .
    • One-Piece Body Construction: Eliminates potential leak paths at body joints, providing maximum integrity .
    • Fire-Safe Design: Optional API 607 certification ensures sealing integrity in case of fire .
    • Anti-Static Device: Ensures electrical continuity across the valve to prevent spark ignition in flammable services .
    • Blow-out Proof Stem: Stem is retained within the valve body even if the gland is removed under pressure .
    • ISO 5211 Mounting Pad: Standardized mounting for easy actuator installation .
    • Self-Relieving Seats: Prevents over-pressure in the ball cavity due to thermal expansion .
    • Full Bore Design: Minimal pressure drop and easy pigging capability .
    • Lockable Handle: Provides safety lockout capability for maintenance .
    • Bidirectional Sealing: Suitable for flow in either direction .
    • Corrosion Protection: ASTM A961 coating standard .
  • Main Applications:
    • Chemical Processing: Handling corrosive fluids where in-line maintenance is beneficial .
    • Petrochemical Plants: Hydrocarbon processing, solvent handling .
    • Pharmaceutical Industry: Sanitary applications requiring easy cleaning .
    • Oil & Gas Production: Gathering systems, metering skids .
    • Power Plants: Cooling water, auxiliary systems .
    • Water Treatment: Filtration and treatment plants .
    • Food & Beverage: Processing lines requiring frequent cleaning .
    • Marine Industry: Seawater systems .
    • Welded Pipeline Systems: Where valve removal is impractical .
  1. Top Entry vs. Side Entry Comparison (DN25)

پارامتر

Top Entry

Side Entry (2-Piece / 3-Piece)

In-Line Maintenance

Yes – remove top cover only

No – must remove valve from line

Body Joints

One (top cover)

Two or more (body joints)

Leak Paths

Minimal

More potential leak paths

Weight

Slightly heavier

Lighter

Cost

Higher initial cost

Lower initial cost

Lifecycle Cost

Lower (easier maintenance)

Higher (difficult maintenance)

Ideal Application

Welded systems, critical service

General purpose, accessible piping

  1. Ordering Information

Please specify when ordering:

  1. Valve size: DN25 (1″)
  2. Pressure class: PN25
  3. Body material: F304 / F316 / A105
  4. End connections: Flanged RF / BW / NPT
  5. Seat material: PTFE / RPTFE / PEEK
  6. Operation: Lever handle / Gearbox / Actuator
  7. Special requirements: Fire-safe (API 607), NACE, oxygen cleaning, cryogenic service, etc.
  8. Accessories: Locking device, extension stem, position indicator

*Disclaimer: The above data is prepared based on common industry standards (API 608, API 6D, EN 1092-1, API 598) for top entry floating ball valves . The top entry design provides significant maintenance advantages for critical and welded pipeline applications. Specific dimensions, materials, and pressure ratings may vary by manufacturer. The final technical agreement and certified drawings shall prevail.*

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.