Specifications: Model: 685 Level Controller Measurement Principle: Buoyancy / Torque Tube Output Signals: Pneumatic: 20 to 100 kPa (3 to 15 psig) Electronic: 4 to 20 mA DC, HART protocol Enclosure Rating: NEMA 4 (Weatherproof), NEMA 7 (Explosion-Proof for electronic versions) Process Connection & Capacity: Chamber Size: Standard displacer lengths available from 14 in to 120 in (355 mm to 3048 mm). Process Connection: Typically 2-inch or 3-inch NPT or flanged cage connections. Displacer Size: Various diameters available to match specific buoyancy force requirements and density. Process Conditions (Dependent on Model & Materials): Pressure Rating: Standard: Up to ANSI Class 600 (1440 psig @ 100°F) High-Performance: Up to ANSI Class 2500 (6000 psig @ 100°F) Temperature Range: Standard: -20° to 400°F (-29° to 204°C) High-Performance: -20° to 800°F (-29° to 427°C) Performance: Accuracy: Typically ±1% of span. Dead Band: Typically less than 0.5% of span. Span Adjustment: Field-adjustable. Materials of Construction: Cage / Chamber: Carbon Steel (standard), Stainless Steel, Alloy Steel. Displacer: 316 Stainless Steel (standard), other alloys available. Torque Tube: 316 Stainless Steel, Inconel, or other high-strength alloys for high-temperature service. Control Capability (with Integral Pilot): Control Actions: Direct or Reverse acting (configurable). Proportional Band: Field adjustable.

Specifications: Model: 1078 (Spring-Return), 1078D (Double-Acting) Type: Piston Actuator, Scotch-Yoke design Action: Spring-Return (1078) / Double-Acting (1078D) Standard Travel: 90° and 180° rotation (other angles available) Air Supply Pressure Range: 3.0 to 8.6 bar (40 to 125 psig) for spring-return models. Up to 10.3 bar (150 psig) for double-acting. Ambient Temperature Range: -20° to 85°C (-4° to 185°F) with standard lubricant. Optional lubricants available for lower temperatures. Mounting Position: Any position. Mounting base can be rotated in 5° increments. Torque & Spring Output: Torque Output: Available in multiple spring ranges to provide specific breakaway and running torque values. Output is a function of air supply pressure and spring size. Example: A typical 1078 size 90 actuator can produce a spring-end torque of over 4,000 Nm (3,000 lb-ft). Spring Ranges: Multiple spring packs are available to match the specific torque requirements of the valve. Physical Data (Typical for a Size 90): Body Material: Anodized Aluminum Piston Rod & Yoke: Hardened Steel Weight: Varies significantly with size and spring configuration. Can range from approx. 70 kg (150 lbs) to over 450 kg (1,000 lbs) for the largest units. Accessories & Options: Positioners: Fisher FIELDVUE™ DVC or other types can be mounted for modulating control. Limit Switches: Proximity or mechanical switches to indicate valve position. Solenoid Valves: Used for direct electrical control of the air supply, essential for ESD applications. Air Filter Regulators: To clean and regulate the air supply. Manual Override: Handwheel or lever for manual operation in case of air failure. Weather & Explosion Proofing: NEMA 4, NEMA 7 (explosion-proof) enclosures for accessories.

Parameter Description Applicable Valve Types Fisher Globe Valves (e.g., ED, ES, HP, and others) Trim Type Multi-stage, drilled-hole stacked plate trim. Primary Function Cavitation Control & Erosion Reduction. Flow Characteristic Linear (inherent to the multi-stage design). Shut-Off Class Dependent on the specific plug and seat arrangement of the main valve. Typically ANSI Class IV or better with metal seats. Liquid Pressure Recovery Factor (F_L) Very high (approaches 1.0), indicating excellent resistance to cavitation. Materials of Construction (Typical): Cage/Trim Stack: 316 Stainless Steel (standard), 17-4PH Stainless Steel, or other hardened alloys. Plug: 17-4PH SST, Stellite-faced, or Tungsten Carbide for extreme service. Seat Ring: 316 SST, Stellite-faced. Typical Applications: Micro-Flat trim is specified for severe liquid services where cavitation is a known problem, such as: Boiler Feedwater Pump Recirculation (BFP Recirc) High-Pressure Letdown Services Condensate Recirculation Water Injection Wellhead Choke Valves Chemical Plant Pressure Letdown Any application with a high ΔP where the outlet pressure remains above the liquid's vapor pressure.

Specifications: Valve Size: 2" to 16" (DN 50 to DN 400) Pressure Class: ANSI 150 through 2500 End Connections: Flanged (RF, RTJ), Butt-Weld Temperature Range: -29° to 427°C (-20° to 800°F) [Depends on seal materials] Performance & Flow Characteristics: Shut-Off Class: Standard: ANSI Class V (Metal-to-metal seat) Optional: ANSI Class VI (With soft seal) Flow Characteristic: Equal Percentage (Standard) Rangeability: Up to 75:1 Flow Coefficient (Cv): High Cv values. Specific values depend on valve size, trim, and pressure drop. Noise Reduction: Capable of reductions up to 50 dBA. Cavitation Protection: Designed to operate cavitation-free across its entire operating range. Materials of Construction: Body & Cover: Carbon Steel (WCB), Stainless Steel (CF8M/316), Alloy Steels (WC6, WC9, C12A) Rotor & Shaft: 17-4PH Stainless Steel (standard), with optional hard facings (e.g., Stellite, Tungsten Carbide) for extreme erosion resistance. Seat Ring: 316 Stainless Steel (standard), Stellite, other hardened alloys. Diffuser Stack: 316 Stainless Steel. Actuator & Accessories: Actuator Types: Requires a robust rotary actuator due to potential high dynamic torques. Pneumatic: Fisher 1051/1052 SRD Piston Actuators are commonly specified. Electric: Electric Motor Actuators are also an option. Positioner: A Fisher FIELDVUE™ DVC digital positioner is highly recommended for precise control, diagnostics, and to manage the high-performance capabilities of the valve. Accessories: Limit switches, solenoid valves, supply pressure regulators, etc.

Specifications: Valve Size: 2" to 16" (DN 50 to DN 400) Pressure Class: ANSI 150, 300 End Connections: Wafer, Lugged, Double Flanged Temperature Range: -40° to 400°F (-40° to 204°C) [Dependent on seat material] Performance & Flow Characteristics: Shut-Off Class: ANSI Class VI (Bubble-tight) Flow Characteristic: Equal Percentage (inherent, characterized by the disc notch) Rangeability: Up to 100:1 Flow Coefficient (Cv): Very high Cv for its size. Specific values are determined by valve size and disc notch characterization. Pressure Recovery: High, similar to a butterfly valve. Leakage: ANSI FCI 70-2 Class VI. Materials of Construction: Body: Ductile Iron (standard), Carbon Steel (WCB), Stainless Steel (CF8M/316) Disc: 316 Stainless Steel (standard), with optional hard coatings (e.g., Stellite, Colmonoy) for abrasive service. Shaft: 17-4PH Stainless Steel (standard) Seat Rings: Resilient materials such as PTFE (TFE), RPTFE, UHMW-PE, and PEEK to handle various temperatures and chemical compatibilities. Actuator & Accessories: Actuator Types: Compatible with all Fisher rotary actuators. Pneumatic: Spring-and-Diaphragm Actuators (for modulating control), Piston Actuators (for on/off or high-performance modulating). Electric: Electric Motor Actuators. Positioner: A Fisher FIELDVUE™ DVC digital positioner is highly recommended for precise modulating control and to take full advantage of the valve's characterized performance and diagnostic capabilities. Accessories: Limit switches, solenoid valves, filter regulators, etc.

Specifications: Model: FIELDVUE DLC3100 SIS Digital Level Controller Certification & Standards: IEC 61508:2010, suitable for use in SIFs up to SIL 2 (Hardware), with systematic capability up to SIL 3. Compliant with IEC 61511. Safety Authority Approval: TÜV Rheinland. Power Supply: 18 to 32 V DC (from a safety-certified power supply) Ambient Temperature Range: -40° to 75°C (-40° to 167°F) Enclosure Rating: NEMA 4X / Type 6P / IP67 Measurement & Performance: Measurement Technology: Guided Wave Radar (Tuned Waveguide) Measurement Range: Up to 6 meters (20 feet) Accuracy: ±3 mm (±0.12 in) or 0.1% of selected range, whichever is greater. Safety Output & Function: Safety Output Type: Two (2) independent, solid-state digital outputs configurable for De-energize-to-Trip (normally energized). Output Rating: 30 V DC, 0.5 A max per output. Function: Monitors level and, upon reaching a pre-set safety trip point, opens the digital outputs to de-energize the downstream safety device (e.g., a solenoid valve), causing the final element (e.g., a shut-off valve) to go to its safe state. Safety Integrity Parameters (Critical for SIS Design): Hardware Fault Tolerance (HFT): 1 Safe Failure Fraction (SFF): > 90% Probability of Failure on Demand (PFD): Low (Specific PFD values are provided in the official FMEDA report and are dependent on proof test intervals. Typical PFDavg can be in the range of 0.001 to 0.0001 for a single device). Proof Test Interval: Recommendations are provided in the product manual to maintain the designed Safety Integrity Level. Materials & Process Connection: Process Connection: 2-inch NPT or other flanged connections. Probe Material: 316L Stainless Steel (standard).

Specifications: Model: FIELDVUE DLC3100 Digital Level Controller Communication Protocol: HART 5/7 (Analog 4-20 mA with digital overlay) Power Supply: 16.5 to 42 V DC (Loop Powered) Ambient Temperature Range: -40° to 75°C (-40° to 167°F) Enclosure Rating: NEMA 4X / Type 6P / IP67 Mounting: Directly on the valve yoke or via a mounting bracket. Measurement & Performance: Measurement Technology: Guided Wave Radar (Tuned Waveguide) Measurement Range: Up to 6 meters (20 feet) Accuracy: Typically ±3 mm (±0.12 in) or 0.1% of selected range, whichever is greater. Update Time: < 1 second Control & Output: Control Output: Pneumatic, proportional to the measured level. Output Pressure Ranges: Selectable (e.g., 0.2-1.0 bar, 0.4-2.0 bar, 0.8-3.4 bar) [3-15, 6-30, 12-50 psi] Air Supply Pressure: 1.4 to 7.0 bar (20 to 100 psi), must be at least 0.35 bar (5 psi) above the required output pressure. Air Consumption: 0.14 Nm³/h (0.1 SCFM) @ 1.4 bar (20 psi) supply (no load) Control Action: Direct or Reverse acting (configurable). Control Algorithms: Proportional (P), Proportional-Integral (PI) Materials & Process Connection: Process Connection: 2-inch NPT or other flanged connections (dependent on the probe assembly). Probe Material: 316L Stainless Steel (standard), other alloys available. Cable / Conduit Entry: Two 1/2-inch NPT entries. Compatibility: Valves: Designed to work with Fisher and other brands of diaphragm control valves. Asset Management Systems: Fully compatible with Emerson's AMS Device Manager and other HART-based host systems for remote configuration and monitoring.

Specifications: Valve Size: 3" to 30" (DN 80 to DN 750) Pressure Class: ANSI 150 / PN 16 End Connections: Wafer, Lugged, Double Flanged Temperature Range: -29° to 200°C (-20° to 400°F) [Highly dependent on liner material] Performance & Flow Characteristics: Shut-Off Class: ANSI Class VI (Bubble-tight) Flow Characteristic: Approximately Equal Percentage Flow Coefficient (Cv): Very high Cv due to full-port design. Specific values depend on valve size. Pressure-Temperature Rating: Rated for full ANSI 150 pressure across its temperature range when equipped with a reinforced PTFE liner. Materials of Construction: Body: Ductile Iron (standard), Carbon Steel, Stainless Steel. Disc: 316 Stainless Steel (standard), with optional hard coatings like Stellite or Chrome Oxide for extreme abrasion resistance. Shaft: 17-4PH Stainless Steel (standard) Liner (Seat) Materials: Reinforced PTFE (RPTFE): Standard for most corrosive and abrasive services. Ultra-High Molecular Weight Polyethylene (UHMW-PE): Excellent for highly abrasive slurries. Other Elastomers: Available for specific chemical compatibility. Actuator & Accessories: Actuator Types: Pneumatic: Spring-and-Diaphragm Actuators (for modulating control), Piston Actuators (for on/off or high-torque modulating). Electric: Electric Motor Actuators. Positioner: A Fisher FIELDVUE™ DVC or other digital positioner is recommended for precise modulating control, diagnostics, and providing the necessary force for the cam-action mechanism. Accessories: Limit switches, solenoid valves, filter regulators, etc.

General Design & Performance: Parameter Description Applicable Valve Types Primarily for Globe Valves (e.g., Fisher GX, HP, etc.) and some Rotary Valves. Trim Types • Hardened Multi-Stage Trim: For cavitation and noise control in erosive services. • Solid Carbide Trim: For extremely abrasive slurries (e.g., mining). • Large Open Port Cage: For slurries and solids-bearing fluids. • Thick-Seated Trim: With hardened inserts for tight shut-off in erosive flow. Leakage Class Typically ANSI FCI 70-2 Class IV (standard metal seat). Class V or better is achievable with special lapping or elastomeric seals, but may sacrifice some abrasion resistance. Flow Characteristic Modified Equal Percentage or Linear (designed to maintain characteristic despite wear). Materials of Construction (Typical): Component Standard Material Dirty Service Material Options Plug 17-4PH SST 440C SST, Stellite 6B overlay, Solid Tungsten Carbide Cage 316 SST, 17-4PH SST 440C SST, 316 SST with Stellite overlay, Solid Tungsten Carbide Seat Ring 316 SST 17-4PH SST, 440C SST, Stellite hardened Valve Body Carbon Steel (WCB), 316 SST Often lined with abrasion-resistant materials (e.g., Ceramic) for severe service. Typical Applications: Mining & Minerals: Tailings, concentrate slurries, hydro-transport. Coal Slurry Pipelines Wastewater Treatment: Sludge control, grit removal. Pulp & Paper: Stock, black liquor. Chemical Processing: Catalyst beds, polymer slurries, abrasive salts. Power Generation: Fly ash, bottom ash slurry, FGD slurry (the primary application for many designs). Oil & Gas: Produced water, wellhead choke valves.

Specifications: Valve Size: 1/2" to 24" (DN 15 to DN 600) Pressure Class: ANSI 150, 300, 600; PN 10, 16, 25, 40 End Connections: Flanged (RF, RTJ), Wafer, Butt-weld, Screwed Temperature Range (Standard): -29° to 200°C (-20° to 400°F) [Dependent on seat material] Temperature Range (Extended): Available with special seals and materials for cryogenic or high-temperature services. Flow & Performance Characteristics: Flow Characteristic: Approximately Equal Percentage (inherent) Rangeability: Typically 100:1 to 200:1 Flow Coefficient (Cv): Very high Cv values for a given valve size. Specific values are determined by size and V-notch angle. Shut-Off Class: ANSI Class VI (Bubble-tight) with soft seats (e.g., PTFE, RPTFE). Metal seats are available for higher temperatures but with lower leakage class. V-Notch Angles: Common options include 15°, 30°, 45°, 60°, 75°, and 90°. A smaller angle provides finer control at low flows, while a larger angle provides higher capacity.