Technical Parameters Parameter Specification Model Fisher VBL Type Lug-Style Vee-Ball Control Valve Flow Characteristic Equal Percentage Shut-Off Class ANSI Class VI (Bubble-tight) with standard non-metallic seats. End Connections Lug Style (ANSI Class 150) Body Materials Carbon Steel (WCB), Stainless Steel (CF8, CF8M) Ball Material Stainless Steel (standard), Hardened Coatings available for extreme abrasion. Stem Material Stainless Steel Seat Material Reinforced PTFE (RPTFE), Ultra-High Molecular Weight Polyethylene (UHMW-PE) Temperature Range -40°F to 400°F (-40°C to 204°C) with standard polymeric seats. Pressure Rating ANSI Class 150: 275 psig (19 bar) Flow Capacity (Cv) Varies by size. Example (4" VBL): Cv ~ 480 Sizes (Pipe Size) 3" to 12" (DN 80 to DN 300)

Technical Parameters Parameter Specification Model Fisher 377 Type Pilot-Operated Safety Relief Valve (POSRV) Operation Full Nozzle or Full Bore design Set Pressure Range Wide range available, typically from 5 to 6000 psig (0.3 to 414 bar) depending on specific model and pilot. Temperature Range -450°F to 1000°F (-268°C to 538°C)，取决于主阀和导阀的配置和材料。 Body Materials Carbon Steel (Standard), Stainless Steel, Alloy Steels End Connections Flanged (Various ANSI Classes), Butt-Weld, Screwed (NPT) Orifice Size Wide range per API standards, from D (0.110 in²) to T (6.380 in²) and larger. Seat Tightness Bubble-tight (Typically ANSI Class IV or better) up to 98-99% of set pressure. Pilot Options Overpressure, Vacuum, Thermal Fire, Combination, etc.

Technical Parameters Parameter Specification Model / Series Fisher easy-e™ ET Type Engineered Pressure & Temperature Control Valve (with Integrated Desuperheater) Function Pressure Reduction + Steam Temperature Control (Attemperation) Body Style Globe or Angle (Angle body is common for better drainage and mixing) End Connections Flanged (ANSI Class 150, 300, 600, 900); Butt-Weld Body Materials Carbon Steel (WCB), Chrome-Moly Steel (WC6/WC9), Stainless Steel (CF8/CF8M) Trim Materials Stainless Steel with hardened materials for erosive service. Spray Nozzle Material Stainless Steel Size Range (Steam Line) 2" to 12" (DN 50 to DN 300) Pressure Rating ANSI Class 150 to 2500 Temperature Range (Steam) Up to 1050°F (565°C) depending on body material. Turndown Ratio High turndown (up to 50:1 or more) for both steam and water flows, allowing for stable control over a wide operating range. Outlet Temperature Control Typically capable of controlling outlet temperature to within 10-15°F (5-8°C) of saturation.

Technical Parameters Parameter Specification Model Fisher™ 4194 (Part of the Rosemount 3051S family) Type Smart Pressure Transmitter (Gauge & Absolute) Output Signal 4-20 mA DC, HART 5/6/7 digital overlay Power Supply 10.5 to 45 V DC (standard, for 4-20 mA with HART) Communications HART Protocol Accuracy ±0.075% of calibrated span (includes linearity, hysteresis, and repeatability) Pressure Ranges Wide selection from as low as 5 inH₂O (1.25 kPa) to 4000 psi (275 bar). Ambient Temperature Limits -40°F to 185°F (-40°C to 85°C) Process Temperature Limits -40°F to 250°F (-40°C to 121°C) Wetted Parts Materials 316 Stainless Steel, Hastelloy C-276 Process Connection 1/2" NPT or 1/4" NPT internal thread Electrical Connection 1/2" NPT conduit connection Enclosure Rating NEMA 4X (IP66/67) Adjustable Damping 0 to 32 seconds (via software configuration)

Technical Parameters Parameter Specification Model Fisher A31D Type Double-Acting, Scotch Yoke Pneumatic Actuator Action Double-Acting (Air-to-Open / Air-to-Close) Standard Travel 90° quarter-turn. Body Material Aluminum with epoxy powder coat Piston Seal Material Buna-N (Standard) Operating Temperature Range -4°F to 180°F (-20°C to 82°C) with standard Buna-N seals. Supply Pressure Range 40 to 120 psig (2.8 to 8.3 bar) Torque Output Varies by size and supply pressure. Example (at 80 psig): - Size 6: ~ 115 lb-in (13 Nm) - Size 12: ~ 480 lb-in (54 Nm) - Size 20: ~ 1325 lb-in (150 Nm) Sizes (Frame Size) 6, 12, 20, 35, 60, 100, 160 (The number corresponds to the piston diameter in millimeters).

Technical Parameters Parameter Specification Model Fisher 3570 Type Force-Balance Pneumatic Valve Positioner Input Signal 3 to 15 psig (0.2 to 1.0 bar) Supply Pressure 20 to 100 psig (1.4 to 6.9 bar) Output Pressure Essentially equal to the supply pressure range (up to the supply pressure limit). Air Consumption Approximately 1.0 SCFM (1.7 m³/hr) at steady state. Stem Travel Range Linear: 0.5 to 6.0 in (12.7 to 152.4 mm) Rotary: 25° to 120° Flow Characteristic Cams Linear, Equal Percentage, Quick Open Action Direct or Reverse (field reversible) Enclosure Rating NEMA 4 (IP65) Mounting Directly on Fisher and other major manufacturers' actuator models.

Technical Parameters Parameter Specification / Options Product Name Fisher Multiport Valve Assembly (Manifold) Type / Configuration 3-Valve Manifold, 5-Valve Manifold Valve Types Integral Block and Bleed Body Materials Carbon Steel (Standard), Stainless Steel (316 SS), Alloy Steel Seat & Seal Materials Stainless Steel, PTFE Pressure Rating ANSI Class 150, 300, 600, 900, 1500, 2500 (Commonly ANSI 600 and 1500) Temperature Range Varies with materials and seals, typically from -50°F to 1200°F (-46°C to 649°C). Process Connections 1/2" NPT (Common for transmitter side), 1/2" to 1" NPT or Flanged (for process side). Operator Handwheel (Standard), Lever

Technical Parameters Parameter Specification Model Fisher Vee-Ball SS-84PSV4 Type Rotary V-Notch Ball Control Valve Valve Size 8 inches Body Material Stainless Steel (CF8/CF8M) Actuator Type Spring-Return Piston Actuator (Fail-Safe) Flow Characteristic Equal Percentage Shut-Off Class ANSI Class VI (Bubble-tight) End Connections Flanged (Likely ANSI Class 150 or 300) Ball & Stem Material Stainless Steel Seat Material Reinforced PTFE (RPTFE) or UHMW-PE Temperature Range -40°F to 400°F (-40°C to 204°C) with standard polymeric seats. Pressure Rating ANSI Class 150: 275 psig (19 bar) or ANSI Class 300: 720 psig (49.6 bar) Flow Capacity (Cv) Approximately 2050 (for an 8" Class 150 V-Ball)

Technical Parameters Parameter Specification Model Fisher 546 Type Two-Wire, Current-to-Pressure (I/P) Transducer Input Signal 4-20 mA DC (Two-wire) Output Signal 3-15 psig (0.2-1.0 bar); other ranges available. Power Supply 24 V DC nominal (10.5 to 45 V DC loop power) Supply Air Pressure 20 to 60 psig (1.4 to 4.1 bar) Air Consumption (No Load) Typically 0.2 SCFM (0.33 m³/hr) Accuracy ±0.5% of span Linearity & Hysteresis ±0.25% of span Ambient Temperature Range -40°F to 180°F (-40°C to 82°C) Enclosure Rating NEMA 4X (IP66) Mounting Panel mount, DIN rail, or direct to actuator.

Technical Parameters Parameter Specification Model Fisher DVI (e.g., DVI 1, DVI 2, etc., for different travel ranges) Type Digital Valve Interface (Valve Position Transmitter) Sensing Technology LVDT (Linear Variable Differential Transformer) Output Signal 4-20 mA DC, two-wire (Typically) Power Supply 24 V DC nominal (Typically 12-30 V DC loop power) Stroke Length Range Available for various strokes, common ranges cover 0.5 to 6.0 inches (12.7 to 152.4 mm). Linearity & Hysteresis ±0.5% of span (Typical) Ambient Temperature Range -40°F to 180°F (-40°C to 82°C) Enclosure Rating NEMA 4X (IP66) Hazardous Area Approvals FM/CSA Intrinsically Safe (IS) and Explosion-Proof (XP) options.