Specifications: Models: L2 (Single-Acting, for Inlet Control), L2sj (Double-Acting, for Outlet Control) Type: Pilot-Operated Float Level Controller Operation: Mechanical / Pneumatic (Self-Contained) Process Connections & Mounting: Cage Size: Standard displacer cage lengths from 14 in to 120 in (355 mm to 3048 mm). Process Connection: Typically 2-inch or 3-inch NPT or flanged cage connections. Mounting: Internal cage, external cage, or bridle mounting. Pilot & Supply Pressure: Supply Pressure Range: 35 to 150 psig (2.4 to 10.3 bar) Pilot Output Pressure: Varies based on supply pressure and float position, used to actuate the main control valve. Materials of Construction: Cage/Body: Cast Iron (standard), Ductile Iron, Carbon Steel, Stainless Steel. Float: Stainless Steel. Internal Parts: Stainless Steel and Brass. Performance & Sizing: Control Sensitivity: Highly dependent on float size, lever arm length, and supply pressure. Capacity: The controllers themselves do not have a flow capacity (Cv). They are sized based on their ability to pilot and control a separate main control valve, which is selected based on the required flow rate.

Specifications: Valve Size: 3" to 12" (DN 80 to DN 300) Pressure Class: ANSI 150 End Connections: Wafer, Lugged Temperature Range: -20° to 400°F (-29° to 204°C) [Dependent on seat material] Performance & Flow Characteristics: Shut-Off Class: ANSI Class VI (Bubble-tight) Flow Coefficient (Cv): High Cv values. Specific values depend on valve size. Pressure Rating: 150 psi (10.3 bar) saturated steam; 275 psi (19.0 bar) for water, oil, and gas. Materials of Construction: Body: Ductile Iron (epoxy coated standard), Carbon Steel, Stainless Steel Disc: 316 Stainless Steel (standard) Stem: 17-4PH Stainless Steel (standard) Seat: Resilient materials such as Buna-N (Standard), EPDM, or Viton® for different fluid compatibilities and temperature ranges. Actuator & Accessories: Actuator Types: Pneumatic: Fisher 1051/1052 SRD spring-return and double-acting piston actuators, 657/667 spring-diaphragm actuators. Electric: Electric motor actuators. Positioner: A Fisher FIELDVUE™ DVC or other rotary positioner can be mounted for precise modulating control. Accessories: Limit switches, solenoid valves, filter regulators, etc.

General Specifications: Model: 3620JP Pilot-Operated Safety Relief Valve Design Standard: JIS B 8210 Operation Type: Pilot-Operated Main Valve Specifications: Valve Size: Larger JIS sizes to handle higher flows (e.g., 80A, 100A, 125A, 150A, 200A). Pressure Rating: JIS high-pressure classes (e.g., 16K, 20K, 30K, 40K, 63K). End Connections: JIS Flanges (e.g., JIS 20K, 30K RF flange facing). Orifice Area: Larger orifice sizes to meet high-capacity demands. Pilot Specifications: Pilot Types: Standard Pilot: For general steam and gas service. Balanced Piston Pilot: For applications with high or variable backpressure. Liquid Service Pilot: For liquid applications. Set Pressure Range: Capable of higher set pressures compared to the 3610JP series. Performance Characteristics: Accumulation (Overpressure): Typically 3% for steam (per JIS B 8210). Blowdown: Adjustable. Backpressure Capability: Standard: Limited built-in backpressure capability. Balanced: Can handle high levels of variable backpressure (e.g., up to 50% or more of inlet pressure) when equipped with a balanced pilot. Materials of Construction: Main Valve Body: SCPH 2 Cast Steel (Standard), with options for higher grades like SCPH 32 for high-temperature service. Internals (Piston, Seat): Stainless Steel with optional hardened trim for erosive services. Pilot: Stainless Steel and Brass.

Specifications: Model: 3610JP Pilot-Operated Safety Relief Valve Design Standard: JIS B 8210 (Spring-loaded and Pilot-Operated Safety Valves for Steam Boilers and Pressure Vessels) Operation Type: Pilot-Operated Main Valve Specifications: Valve Size: Common JIS sizes (e.g., 50A, 65A, 80A, 100A, 125A, 150A) Pressure Rating: JIS pressure classes (e.g., 10K, 16K, 20K, 30K, 40K) End Connections: JIS Flanges (e.g., JIS 10K, 16K, 20K RF flange facing) Orifice Area: Designed to meet JIS capacity requirements for specific sizes and set pressures. Pilot Specifications: Pilot Type: Typically a standard pilot for steam service. Other pilots (e.g., for liquid) may be available. Set Pressure Range: Defined based on the JIS pressure class of the valve. Performance Characteristics: Accumulation (Overpressure): Typically 3% for steam (per JIS B 8210). Blowdown: Adjustable, typically around 4-7%. Relieving Capacity: Certified per JIS B 8210 standards. Materials of Construction: Main Valve Body: SCPH 2 Cast Steel (equivalent to WCB) is standard for JIS valves. Piston & Seat: Stainless Steel. Pilot: Stainless Steel and Brass.

Specifications: Model: 3660 Pilot-Operated Safety Relief Valve Operation Type: Pilot-Operated Standards: Designed in accordance with ASME Boiler and Pressure Vessel Code, Section VIII. Main Valve Specifications: Valve Size: 1D2 through 4L6 (Inlet sizes typically from 1" to 6") Pressure Class: ANSI 150 through 2500 End Connections: Flanged (RF, RTJ), Butt-Weld Orifice Designations: D through T (per ASME/API standards) Temperature Range: -268° to 538°C (-450° to 1000°F) [Dependent on pilot and body material] Pilot Specifications: Pilot Types: Standard Pilot: For general purpose gas, vapor, and steam service. Liquid Service Pilot: Specifically designed for liquid applications. Balanced Piston Pilot: For applications with high backpressure. Bellows Seal Pilot: For services where the pilot sensing line could freeze or become clogged. Vapor Dome Pilot: For precise set pressure in low-pressure applications. Set Pressure Range: Varies by pilot type, from a few psig to over 6000 psig. Performance Characteristics: Relieving Capacity: Certified capacities per ASME Section VIII. Specific capacity is determined by orifice size, set pressure, and fluid. Blowdown: Adjustable, typically 2-7% for standard pilots. Overpressure: Standard setting is 3% for compressible fluids, 10% for most liquids (per ASME code). Backpressure Tolerance: Standard: Limited built-in backpressure capability. Balanced: High backpressure capability (up to 50% of inlet pressure or more) with a balanced piston pilot. Materials of Construction: Main Valve Body: Carbon Steel (WCB) [Standard], Stainless Steel (CF8M), Alloy Steels (WC6, WC9). Piston & Seat: 316 Stainless Steel, with optional hardened trim. Pilot Body: 316 Stainless Steel, Brass.

Specifications: Type: Manual Quarter-Turn Actuator Operation: 90° rotation (quarter-turn) Mounting: Directly onto the standard mounting pad of Fisher and other compliant ball and plug valves. Position Indication: Clear Open/Closed indicators on the lever and base. Torque & Physical Data: Torque Output: The output torque is a function of the force applied by the operator and the length of the lever. It is designed to handle the typical breakaway and running torque of the valves it is mounted on. Lever Length: Varies by model to provide different levels of mechanical advantage. Common lengths are in the range of 10 to 24 inches (250 to 600 mm). Weight: Lightweight, typically a few kilograms/pounds, depending on size and material. Materials of Construction: Lever & Body: Ductile Iron (standard, coated for corrosion protection), Aluminum (lightweight, good for non-corrosive areas), or Stainless Steel (for highly corrosive environments). Locking Mechanism: Hardened Steel for durability and wear resistance. Hardware: Stainless Steel. Locking Features: Locking Positions: Open, Closed. Some models may allow locking in intermediate positions. Padlock Holes: Typically designed to accommodate up to three padlocks to comply with multi-person LOTO safety protocols. Compatible Valves: Fisher V100, V200, V300 Ball Valves Fisher A, AF, AP Plug Valves Other quarter-turn valves with ISO 5211 mounting pad standards.

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.