Technical Specifications
Category Specification
Type Self-Operated, Spring-Loaded Pressure Reducing Regulator
Service Steam, Air, Industrial Gases (e.g., N2, CO2)
Size & Connections 2 Inch NPT (National Pipe Thread)
Other sizes (e.g., 1", 1.5", 3") are available in the C404 series.
Maximum Inlet Pressure (P1) 400 psig (28 bar)
Outlet Pressure (P2) Range Adjustable. Specific range depends on the spring used.
Example Spring Ranges: 10-60 psig, 50-150 psig, etc.
Maximum Temperature 406°F (208°C) - Suitable for saturated steam service at corresponding pressures.
Body Materials Ductile Iron (Standard), Cast Steel
Trim Materials Stainless Steel (standard)
Actuator Type Direct-Acting, Spring-Diaphragm
Leakage Class ANSI Class IV (Metal-to-Metal Seat)
Technical Specifications
Category Specification
Type Pilot-Operated, Balanced-Plug Gas Pressure Regulator
Service Natural Gas, Inert Gases
Pressure Ratings (ANSI) ANSI Class 150, 300, or 600
Size & Connections Size: 2" through 12" (50 mm through 300 mm)
Connections: Flanged (RF or RTJ) according to ANSI B16.5
Maximum Inlet Pressure (P1) Up to 1440 psig (100 bar) depending on body class and specific trim.
Outlet Pressure (P2) Range Highly variable based on pilot selection. Can be configured for very low (inches of water column) to high (hundreds of psig) outlet pressures.
Temperature Range Standard: -20°F to 150°F (-29°C to 66°C)
Extended: Options available for lower or higher temperatures.
Body Materials Carbon Steel (Standard), Ductile Iron, Stainless Steel
Trim Materials Stainless Steel (standard). The "H" variant may include hardened trim or specific materials for erosive or corrosive service.
Leakage Class ANSI Class IV (Metal Seat) or Class VI (Soft Seat, if equipped)
Technical Specifications
Category Specification
Type Pilot-Operated, Soft-Seated Relief Valve
Service Gas (Natural Gas, Inert Gases, etc.)
Set Pressure Range 1.5 to 15 psig (0.1 to 1.0 bar) - This is the typical and most common range for this model.
Maximum Inlet Pressure 15 psig (1.0 bar)
Temperature Range -20° to 150°F (-29° to 66°C)
Body Size & Connections 2 Inch NPT (National Pipe Thread) - This is the standard size for the VS100.
Body Materials Aluminum
Seat Material Buna-N (Nitrile) - Other elastomers like Viton may be available.
Pilot Connection 1/4 Inch NPT
Technical Specifications
Category Specification
Type Pilot-Operated Pressure Regulator
Service Natural Gas, Inert Gases
Pressure Ratings ANSI Class 150, 300, 600
Size Range 2" through 12" (50 mm through 300 mm)
Connections Flanged (RF or RTJ)
Maximum Inlet Pressure Up to 1440 psig (99 bar) depending on class
Outlet Pressure Range Configurable from inches of water column to hundreds of psig
Temperature Range -20°F to 150°F (-29°C to 66°C)
Body Materials Carbon Steel (standard), Ductile Iron, Stainless Steel
Trim Materials Stainless Steel
Typical Applications
City Gate Stations
Industrial Plant Inlets
Pipeline Pressure Control
Storage Field Regulation
Compressor Station Control
Distribution System Pressure Reduction
Technical Specifications
Parameter Specification
Input Hydrostatic head pressure
Output 3-15 psig (0.2-1.0 bar)
Air Supply 20 psig (1.4 bar) clean, dry air
Accuracy ±0.5% of span
Span Ranges 25 inH₂O to several hundred inH₂O
Process Connections 2" NPT, 3" NPT, ANSI flanges
Wetted Parts Stainless steel, Monel, Hastelloy C
Case Material Aluminum/epoxy coated cast iron
Typical Applications
Oil & gas production vessels
Chemical processing equipment
Power generation systems
Water and wastewater treatment
Pulp and paper industry
Technical Specifications
Category Specification
Type Single-Acting, Pneumatic Valve Positioner
Input Signal 4-20 mA DC (standard); other signals (e.g., 3-15 psi) available
Supply Pressure Up to 150 psig (10.3 bar)
Output Pressure Up to the supply pressure minus 5 psi (0.3 bar)
Air Consumption Approximately 3.5 scfm (100 NL/min) at steady state
Linearity ±1% of span
Hysteresis Less than 0.4% of span
Enclosure Rating NEMA 4X (IP66)
Temperature Range Standard: -40°F to 180°F (-40°C to 82°C)
Extended: -50°F to 225°F (-46°C to 107°C) available
Materials Housing: Aluminum
Internal: Stainless Steel, Anodized Aluminum
Mounting Directly to actuator via mounting kits
Technical Specifications
Category Specification
Type Pneumatic Force-Balance Valve Positioner
Input Signal 3-15 psig (0.2-1.0 bar)
Supply Pressure 20-100 psig (1.4-6.9 bar)
Output Pressure 3-100 psig (0.2-6.9 bar), up to supply pressure
Air Consumption Approximately 1.5 SCFM (42.5 NL/min) at steady state
Linearity ±1% of span
Hysteresis Less than 0.5% of span
Enclosure Cast Aluminum with epoxy coating
Temperature Range -40°F to 180°F (-40°C to 82°C)
Mounting Directly to actuator via Fisher mounting kits (e.g., on Fisher 657/667 actuators)
Technical Specifications
Category Specification
Type Pneumatic Force-Balance Level Transmitter
Input Hydrostatic head pressure
Output 3-15 psig (0.2-1.0 bar)
Air Supply 20-35 psig (1.4-2.4 bar) clean, dry air
Accuracy ±0.5% of span
Span Ranges Adjustable over wide range (typical minimum 25 inH₂O)
Process Connections 2" NPT, 3" NPT, or flange connections
Wetted Parts Stainless steel (standard), Monel, Hastelloy C
Diaphragm Material Stainless steel (standard with various lining options)
Case Material Aluminum or epoxy-coated cast iron
Technical Specifications
Category Specification
Type Pneumatic to Current (P/I) Transducer
Input Signal 3-15 psig (0.2-1.0 bar)
Output Signal 4-20 mA DC, two-wire
Power Supply 24-55 VDC (line powered)
Accuracy ±0.5% of span
Hysteresis ±0.1% of span
Ambient Temperature -40°F to 180°F (-40°C to 82°C)
Enclosure Rating NEMA 4X (weatherproof and corrosion resistant)
Mounting 2-inch pipe mounting or surface mounting
Process Connection 1/4-inch NPT female
Technical Specifications
Category Specification
Type Pilot-Operated Pressure Regulator
Service Natural Gas, Inert Gases
Pressure Rating ANSI Class 150, 300, 600, 900 (depending on specific model)
Size Range Typically 2" to 8" (50 mm to 200 mm), with the "L" variant often representing a specific size.
Connections Flanged (RF or RTJ)
Maximum Inlet Pressure Up to 1440 psig (100 bar), depending on body class and trim.
Outlet Pressure Range Configurable via pilot selection, from inches of water column to high psig.
Temperature Range -20°F to 150°F (-29°C to 66°C)
Body Materials Carbon Steel (standard), Ductile Iron, Stainless Steel.
Trim Materials Stainless Steel.