Masoneilan 21000 Series heavy top-guided globe valve
The Baker Hughes Masoneilan 21000 Series heavy top-guided globe valve for a wide range of automated process control applications. The 21000 Series product line features a single-ported design configuration, which permits numerous trim, actuation, and instrumentation solutions
Product Features
Model 87/88 Spring Diaphragm Actuator
- Compact Multi-Spring Design Reduces Stem-Side Loading
- Field-Reversible Construction
- Rolling Diaphragm Helps to Reduce Friction and Wear
- Constant Effective Area for Smooth Linear Control
- Four Sizes Available Covering Large Thrust Range
- Four Standard Spring Ranges for Wider Application Envelope
- Side-Mounted Handwheel Option
Heavy Top Guiding
- Larger Post Guide Area for Increased Stability
- Positioned Outside of Direct Fluid Flow Path
- Offers More Reliable Control Performance
Various Trim Options
- Single- and Double-Stage Low Noise and Anti-Cavitation Trim
- Standard Hardened Trim (Stellited or Equivalent Trim)
- Quick-Change or Threaded Seat Rings
- Reduced Capacities and Low-Flow Trims
- Equal Percentage and Linear Characteristics
- UOP Lockhopper Trim
- Soft-Seat Design
Design Flexibility
- Multiple End Connections
- Various Materials
- Angle Body Configuration
- Bellows Seal Design
- Piston Actuation Option
- Extension Bonnets
- Cryogenic Configuration
- Low-Emissions Packing
- DIN Version Available
Specifications
- Sizes: 3/4” through 8”
- ANSI Ratings: Class 150 through 2500
- ANSI Leakage: Class IV, V, VI
- Cv Range: .11 to 640
- Temperature Range: -150°F to 1050°
- F Materials: Carbon Steel, stainless steel, chrome-moly, other alloys
- Connections: NPT, flanged, socket weld, butt weld
- Actuators: Spring-diaphragm, cylinder
Applications
- Low pressure steam & water
- General services
- Flash tank
- Fuel gas
- Condensate recirculation
- Superheater and reheat spray
- Desuperheater water spray
- Gland-steam pressure
- Soot blower
- Steam pressure
- Auxiliary steam
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