Technical Datasheet: 2-Piece Floating Ball Valve
Product Name: 2-Piece Floating Ball Valve
Connection: Female Threaded NPT (National Pipe Thread)
Peringkat Tekanan: 1000 PSI (WOG)
Body Construction: Bar Stock (Forged Bar)
- General Design Features
- Jenis: 2-piece, split body construction (Side Entry). Consists of a main body and an end cap secured by bolts.
- Material: Machined from solid steel bars (e.g., Stainless Steel or Carbon Steel). This forged/bar stock construction offers higher density and strength compared to castings.
- End Connections: Female threaded ends conforming to ASME B1.20.1 (NPT) standards.
- Ball Design: Floating ball principle. The ball is not fixed; under pressure, it floats downstream against the seat to ensure a tight seal.
- Blowout-Proof Stem: The stem is inserted from inside the body and features a blowout-proof shoulder, preventing stem ejection due to internal pressure.
- Port Type: Full Port (full bore) or Reduced Port depending on size (Full Port minimizes pressure drop and turbulence).
- Operasi: Standard lever handle with locking device (material: plated carbon steel or stainless steel). Suitable for mounting extensions or actuators.
- Applicable Standards & Specifications
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Item
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Standard / Specification
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Design & Manufacturing
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API 608, API 6D, ASME B16.34, MSS SP-110
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End Connections
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ASME B1.20.1 (NPT)
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Pressure-Temperature Rating
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ASME B16.34
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Inspection & Testing
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API 598, MSS SP-110
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- Operating Parameters
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Item
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Spesifikasi
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Size Range
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1/4″ to 2″ (DN15 to DN50)
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Peringkat Tekanan
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1000 PSI (WOG) *(approx. 6.9 MPa / 69 bar)*
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Shell Test Pressure
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1500 PSI (Hydrostatic)
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Seat Test Pressure
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1100 PSI (Hydrostatic / Pneumatic)
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Kisaran Suhu
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-20°F to +350°F (-20°C to +180°C) Dependent on seat material (PTFE typical)
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Suitable Media
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Water, Oil, Gas (WOG) and general corrosive fluids
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Brankas Tahan Api
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Optional, designed per API 607
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- Bill of Materials (Typical Material Selection)
Note: The following is based on a standard stainless steel build. Carbon steel options are listed for reference.
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Item
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Part Name
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Stainless Steel Construction
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Carbon Steel Construction (Optional)
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1
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Tubuh
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A182 F316 / F304 (SS Bar Stock)
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A105 (CS Bar Stock)
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2
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End Cap
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A182 F316 / F304 (SS Bar Stock)
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A105 (CS Bar Stock)
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3
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Bola
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AISI 316 / A182 F316 (Solid Ball)
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A105 Chrome Plated / SS
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4
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Tangkai
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A276 316 / 304 (Stainless Steel)
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A276 410 / A182 F304
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5
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Seat (Seal)
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Reinforced PTFE (RPTFE)
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PTFE / RPTFE
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6
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Body Seal / Gasket
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PTFE / Graphite
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PTFE / Graphite
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7
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Stem Packing
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PTFE V-Rings
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PTFE
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8
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Gland Nut
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Stainless Steel 304
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Stainless Steel 304
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9
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Thrust Washer
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PTFE
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PTFE
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10
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Handle / Lever
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Stainless Steel 304 / Plated CS
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Plated Carbon Steel
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11
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Handle Sleeve
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Plastic (PVC)
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Plastic
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12
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Locking Device
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Integrated locking plate or handle holes
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Integrated locking plate
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- Dimensional Data (Reference)
Note: Dimensions are industry standard references. Please verify with the specific manufacturer’s drawing.
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NPS Size
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Thread Size (NPT)
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Length L (in / mm)
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Height H (in / mm)
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Handle Length (in / mm)
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Bore Diameter (in / mm)
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1/4″
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1/4″
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2.17″ (55 mm)
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2.00″ (51 mm)
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3.94″ (100 mm)
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0.31″ (8 mm)
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3/8″
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3/8″
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2.17″ (55 mm)
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2.00″ (51 mm)
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3.94″ (100 mm)
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0.39″ (10 mm)
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1/2″
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1/2″
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2.56″ (65 mm)
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2.28″ (58 mm)
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4.72″ (120 mm)
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0.59″ (15 mm)
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3/4″
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3/4″
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2.91″ (74 mm)
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2.48″ (63 mm)
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5.12″ (130 mm)
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0.79″ (20 mm)
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1″
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1″
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3.46″ (88 mm)
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2.91″ (74 mm)
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6.50″ (165 mm)
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1.00″ (25 mm)
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1-1/4″
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1-1/4″
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3.94″ (100 mm)
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3.15″ (80 mm)
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6.50″ (165 mm)
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1.26″ (32 mm)
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1-1/2″
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1-1/2″
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4.33″ (110 mm)
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3.54″ (90 mm)
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6.89″ (175 mm)
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1.50″ (38 mm)
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2″
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2″
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4.92″ (125 mm)
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4.13″ (105 mm)
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7.48″ (190 mm)
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1.89″ (48 mm)
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- Inspection & Testing Procedure
- Shell Test: Valve partially open. Hydrostatic test at 1.5 times the rated pressure. Check body, end cap joints, and stem area for leaks.
- Seat Test: Valve closed. Hydrostatic or pneumatic test at 1.1 times the rated pressure. Check for leakage across the seat.
- Low-Pressure Seat Test: Air test at 80 PSI (approx. 0.6 MPa) to verify sealing integrity at low pressure.
- Options & Special Features
- Antistatic Device: Optional springs between ball and stem to ensure electrical continuity (per API 608).
- Fire-Safe Design: Optional design qualified to API 607 / ISO 10497.
- Actuator Mounting: Top flange designed to ISO 5211 for direct mounting of pneumatic, electric, or worm gear actuators.
- Stem Extension: Available for buried service or insulated piping.
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