DN25-PN25-SW Top Entry Floating Ball Valve B

TECHNICAL DATA SHEET

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

1. Basic Design Parameters

2. Technical Specifications

3. Material of Construction (Recommended – Stainless Steel)

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

4. 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)

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)

4.3 End Preparation (Alternative Connections)

5. Pressure-Temperature Rating

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

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

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

7. Flow Characteristics (DN25 – Full Bore)

8. Top Entry Design Advantages

9. 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 .

10. Top Entry vs. Side Entry Comparison (DN25)

11. 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.*

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