TECHNICAL DATA SHEET
Product Name: 2-inch 1500LB Pneumatic Actuated Globe Valve
Model/Specification: 2″-1500LB-PNEUMATIC-GLOBE
Loại van: Pneumatic Globe Valve (Control / On-Off)
Connection Type: Flanged (RF/RTJ) / Butt Weld (BW) User specified
- Basic Design Parameters
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Tham số
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Standard/Specification
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Kích cỡ
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2 inches (DN50)
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Pressure Class
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Class 1500 LB (PN250 / 3600 PSI)
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Vật liệu thân máy
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Forged Carbon Steel (A105) / Forged Stainless Steel (A182 F304/F316) / Alloy Steel (F22) User specified
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Manufacturing Process
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Forged Steel (Close Die Forged)
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Design Standard
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ASME B16.34 / API 602 / BS 5352
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End Connection Standard
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ASME B16.5 (Flanged RF/RTJ) / ASME B16.25 (BW)
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Face to Face Standard
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ASME B16.10
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Test & Inspection Std.
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API 598 / ISO 5208
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Lớp rò rỉ
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Class V / Class VI (Soft seat) per ANSI/FCI 70-2
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Fire-Safe Design
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API 607 (Optional)
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- Technical Specifications
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Tham số
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Details
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Loại van
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Straight Pattern Globe Valve, Forged Construction
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Bonnet Type
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Bolted Bonnet / Pressure Seal (for high pressure)
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Stem Type
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Outside Screw and Yoke (OS&Y), Rising Stem
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Disc Type
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Parabolic / Needle-type Disc (for throttling)
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Seat Type
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Metal Seat (Standard) / Soft Seat (Optional – PEEK/PTFE)
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Applicable Media
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Steam, Water, Oil, Gas, Corrosive Fluids (depending on material)
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Phạm vi nhiệt độ
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-29°C to +425°C (CS/A105) / up to +550°C (F22) / up to +180°C (SS with PTFE)
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Flow Direction
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Flow over disc (standard) / Flow under disc (optional)
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Hoạt động
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Pneumatic Actuator (Double-acting / Spring-return)
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- Pneumatic Actuator Specifications
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Tham số
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Details
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Actuator Type
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Pneumatic Piston / Diaphragm Actuator
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Action Mode
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Double-Acting / Spring-Return (Fail-Open / Fail-Close)
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Air Supply Pressure
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3 – 8 bar (40 – 115 PSI) typical
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Control Type
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On-Off (with solenoid valve) / Modulating (with positioner)
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Positioner
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Electro-pneumatic (4-20mA input) / Pneumatic (optional)
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Accessories
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Limit Switches, Solenoid Valve, Air Filter Regulator, Boosters, Manual Override
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Mounting Bracket
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Custom fabricated, ISO 5211 compliant mounting
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Manual Override
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Handwheel (optional)
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Ambient Temperature
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-20°C to +80°C (standard)
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- Material of Construction (Recommended – Carbon Steel)
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Part Name
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Vật liệu
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Standard/Grade
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Thân hình
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Forged Carbon Steel
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ASTM A105
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Bonnet
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Forged Carbon Steel
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ASTM A105
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Disc / Valve Plug
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Stainless Steel + Hardfacing
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A276 420 / A182 F304 + Stellite
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Seat Ring
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Stainless Steel (Integral or Renewable)
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A182 F304 / F316 (Hardfaced)
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Thân cây
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Stainless Steel
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ASTM A182 F6a (13Cr) / A276 420
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Gasket
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Spiral Wound
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Stainless Steel + Graphite
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Packing
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Flexible Graphite / PTFE
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Low sulfur graphite
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Stem Nut
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Aluminum Bronze
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C95400 / CuAl10Fe3
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Body Bolts/Nuts
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Alloy Steel
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ASTM A193 B7 / A194 2H
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Yoke
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Cast Iron / Fabricated Steel
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For actuator mounting
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*For Stainless Steel version (A182 F304/F316): body/bonnet to SS, bolting changes to A193 B8 / A194 8 *
- Main Dimensions & Connection Details
Note: Dimensions for 2″ Class 1500 Flanged Globe Valve. Based on industry standards .
5.1 Valve Body Dimensions (Face-to-Face)
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Kích cỡ
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Pressure Class
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L (RF/RTJ) mm
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L (RF/RTJ) in
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H (Open) mm
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H (Open) in
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Weight (kg)
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Weight (lbs)
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2″
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1500LB
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368 – 371
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14.5 – 14.6
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355 – 524
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14.0 – 20.6
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28 – 53
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62 – 117
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*Note: H(open) and weight vary by manufacturer and actuator size. Valve body weight approx 28-53kg, actuator adds additional weight.*
5.2 Flange Details (Per ASME B16.5 – Class 1500)
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Tham số
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2″ Flange
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Flange Diameter (OD)
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215 mm (8.5 in)
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Bolt Circle Diameter (PCD)
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165.1 mm (6.5 in)
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Number of Bolt Holes
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8
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Bolt Hole Diameter
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25.4 mm (1.0 in)
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Bolt Thread Size
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7/8″ UNC
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Raised Face Height
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7 mm (0.28 in)
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RTJ Groove
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Per ASME B16.5
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- Pressure-Temperature Rating (ASME B16.34 / Class 1500)
Material Group: Carbon Steel (ASTM A105)
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Temperature (°C)
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Working Pressure (bar)
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Working Pressure (psi)
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Ghi chú
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-29 to 38
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250
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3625
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Maximum Rating (Class 1500)
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100
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235
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3400
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200
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220
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3190
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300
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205
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2970
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400
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190
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2755
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425
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175
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2540
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Max for A105
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*For Stainless Steel (F304/F316): similar ratings up to 180°C (PTFE seats) or higher with metal seats . For F22 Alloy Steel: up to 550°C with derating .*
- Flow Characteristics (2″ – Class 1500)
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Tham số
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Value
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Flow Coefficient Cv (approx)
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~50 – 80 (typical for 2″ globe valve)
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Flow Coefficient Kv (approx)
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~43 – 70
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Flow Characteristic
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Linear / Equal Percentage (depending on trim)
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Seat Leakage Class
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Class V (Metal Seat) / Class VI (Soft Seat) per ANSI/FCI 70-2
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- Test Pressure (API 598)
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Test Type
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Medium
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Pressure (bar)
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Pressure (psi)
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Acceptance Criteria
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Shell Test (Hydrostatic)
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Water
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375
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5440
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1.5 x 38°C Rating (no visible leakage)
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High-Pressure Seat Test
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Water
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275
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3990
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1.1 x 38°C Rating (Rate A/B per API 598)
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Low-Pressure Seat Test
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Air / N2
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5.5 – 7.0
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80 – 100
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Bubble-tight
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Actuator Test
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Air
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5.5
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80
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Function test (full stroke)
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- Pneumatic Actuator Selection Guide
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Actuator Size
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Air Supply
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Thrust
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Action Type
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Suitable for
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Small
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4-6 bar
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Low
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Spring-Return
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On-Off, low DP
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Medium
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5-7 bar
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Medium
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Double-Acting
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Modulating control
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Large
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6-8 bar
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High
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Double-Acting
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High DP, emergency shutdown
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Note: Actuator sizing depends on differential pressure, required fail-safe action, and operating speed. Final selection by manufacturer based on process conditions.
- Features & Applications
- Key Features:
- High Pressure Capability (1500LB): Designed for demanding high-pressure applications up to 250 bar .
- Forged Body Construction: Provides superior strength and reliability compared to cast valves .
- Pneumatic Actuation: Fast response for on-off or modulating control with 4-20mA positioner options .
- Excellent Throttling Control: Globe valve design provides precise flow regulation.
- Flexible Configuration: Available with spring-return (fail-safe) or double-acting actuators .
- Manual Override: Optional handwheel allows manual operation during air supply failure .
- Versatile Material Options: Carbon steel, stainless steel, or alloy steel (F22) for various services .
- Multiple Seat Options: Metal seats for high temperature, soft seats for zero leakage.
- Low Fugitive Emissions: Optional live-loaded packing for emissions control.
- Wide Temperature Range: -29°C to 550°C depending on materials .
- Main Applications:
- Power Plants: High-pressure steam and feedwater control .
- Refineries & Petrochemical: Hydrocarbon processing, high-pressure fluid control.
- Oil & Gas Production: Wellhead control, gathering systems.
- Pipeline Systems: Pressure control and isolation.
- Chemical Processing: Corrosive fluid handling (with SS materials).
- Industrial Boilers: Blowdown and steam control.
- Ordering Information
Please specify when ordering:
- Valve size: 2″ (DN50)
- Pressure class: 1500LB
- Body material: A105 / F304 / F316 / F22
- End connections: Flanged RF/RTJ / BW
- Seat type: Metal / Soft (PEEK/PTFE)
- Actuator action: Double-acting / Spring-return (Fail-Open / Fail-Close)
- Control type: On-Off / Modulating (4-20mA)
- Accessories: Positioner, solenoid valve, limit switches, air filter regulator
- Special requirements: Fire-safe, NACE, oxygen cleaning, etc.
Disclaimer: The above data is prepared based on common industry standards (ASME B16.34, API 598, API 602) for pneumatic globe valves . Specific dimensions, materials, and actuator sizing may vary by manufacturer based on actual pressure and temperature conditions. The final technical agreement and certified drawings shall prevail.
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