1/2″-600LB-SW 3 Piece Floating Ball Valve

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Description

TECHNICAL DATA SHEET

PRODUCT: 3-Piece Floating Ball Valve
MODEL / REFERENCE: 1/2″-600LB-SW
TYPE: Full Port, Floating Ball, Bolted Body Construction


1.0 PRODUCT DESCRIPTION & APPLICATION
A high-pressure, compact 3-piece ball valve designed for reliable shut-off service in demanding industrial applications. The three-piece bolted construction allows for easy in-line maintenance, seat replacement, and cleaning without removing the valve from the pipeline. Featuring Socket Weld (SW) ends on both sides, it provides a robust, leak-resistant connection ideal for permanent installations in high-pressure systems. This valve is commonly used in instrumentation, sampling systems, high-pressure chemical injection, utility lines, and other critical services within oil & gas, petrochemical, and power generation industries where integrity and maintenance ease are paramount.

2.0 DESIGN & STANDARDS

  • Design & Pressure Rating: ASME B16.34, Class 600
  • End Connection: Socket Weld (SW) per ASME B16.11
  • Face-to-Face Dimensions: Compliant with standard industry dimensions for 3-piece valves.
  • Fire Safe Design: API 607 / ISO 10497 (Optional)
  • Anti-Static Device: API 608 / ISO 17292 (Standard)
  • Blow-Out Proof Stem: API 608 (Standard)

3.0 GENERAL SPECIFICATIONS

Parameter Specification
Nominal Size 1/2 Inch (DN 15)
Pressure Rating Class 600
Temperature Range Standard: -20°F to +450°F (-29°C to +232°C) with PTFE seats. Extended range available.
Flow Characteristic Full Port (FP) for minimal pressure drop. Reduced Port (RP) optional.
End Connections Socket Weld (SW) x Socket Weld (SW)
Operation Manual Handle (Standard). Pneumatic or Electric Actuation available with ISO 5211 mounting pad.
Seat Leakage Class ANSI/FCI 70-2 Class VI (Standard Soft Seat). Class IV (Metal Seat) optional.

4.0 PRESSURE-TEMPERATURE RATINGS

  • Rated per ASME B16.34 for Class 600. The maximum allowable pressure varies with temperature and material.
  • Example (CF8M/316SS Body with PTFE Seats): 1440 psi @ 100°F (38°C), ~285 psi @ 450°F (232°C). Consult detailed P-T chart for specific materials.

5.0 MATERIALS OF CONSTRUCTION (STANDARD)

Component Material Specification
Valve Body (3 Pcs) ASTM A182 F304 / A351 CF8 (304 SS)
Common Options: F316/CF8M (316 SS), F304L/CF3, F316L/CF3M, A105/WCB (Carbon Steel), Alloy 20.
Ball 304/316 SS, Chrome Plated for wear resistance.
Stem 304/316 SS (17-4PH SS optional for higher strength)
Seats & Seals Reinforced PTFE (RPTFE) or Virgin PTFE. PEEK available for higher temps.
Body Seals (Gaskets) Graphite/SS Spiral Wound or PTFE Envelope Gasket
Body Bolts/Nuts ASTM A193 B8 / B8M (SS)
Handle Powder-Coated Steel or Stainless Steel

6.0 KEY DESIGN FEATURES

  • 3-Piece Bolted Design: Enables easy disassembly for maintenance, seat replacement, and system cleaning without pipeline removal.
  • Dual Socket Weld Ends: Provide a permanent, high-strength, leak-free connection superior to threaded fittings in high-vibration and high-pressure service.
  • Full Port Design: Minimizes pressure drop and allows for pigging in some applications.
  • Floating Ball Design: Process pressure assists in sealing by pushing the ball against the downstream seat.
  • Integral Anti-Static Device: Ensures safe dissipation of static electricity.
  • Blow-Out Proof Stem: Securely retained by a shoulder or insert, preventing ejection under pressure.

7.0 TESTING & INSPECTION

  • Hydrostatic Shell Test: Per API 598. Test pressure: 1.5 x 600 = 900 psi (water).
  • Seat Leak Test: Per API 598. Test pressure: 1.1 x 600 = 660 psi (air or water).
  • High-Pressure Gas Test: Optional for sensitive applications.
  • Material Certification: Mill Test Reports (MTRs) available for body materials.
  • Documentation: Certificate of Conformance (COC) supplied with each valve.

8.0 INSTALLATION & MAINTENANCE NOTES

  • CRITICAL: The valve must be fully open during welding of socket weld ends to prevent heat damage to internal seals (seats, stem packing).
  • Ensure pipe ends are clean, square-cut, and inserted to the proper depth within the socket weld cavity.
  • Follow standard socket weld procedures (ASME B31.3) for best results.
  • For disassembly, completely depressurize the line before loosening the two body bolts.

9.0 OPTIONS & ACCESSORIES

  • Actuation: Pneumatic (double-acting/spring-return), Electric actuators.
  • ISO 5211 Mounting Pad (Standard or optional) for direct actuator mounting.
  • Gear Operator for high-cycle applications.
  • Locking Device for handle.
  • Stem Extension for insulated lines.
  • Cavity Pressure Relief / Drain Port.
  • Fire-Safe Design with secondary metal seals (per API 607).
  • Special Trim Materials (Hastelloy, Monel, Stellited surfaces).