Technical Specifications / Parameters Parameter Specification Model Fisher EHU Type Pilot-Operated, Spring-Loaded, Pressure Reducing Regulator Body Size & Pressure Class Sizes: 2", 3", 4", 6" (ANSI Flanged) Pressure Class: ANSI Class 300, 400, 600. End Connections Flanged (RF or RTJ). Body Materials Carbon Steel (WCB), Ductile Iron. Trim Materials Stainless Steel (standard). Inlet Pressure Range (P1) Up to 600 psig (~41 bar) for Class 300 models; up to 1440 psig (~99 bar) for Class 600 models. Outlet Pressure Range (P2) Adjustable over a wide range, dependent on the pilot and spring used. Common ranges span from 3 psig to 250 psig (0.2 to 17 bar). Temperature Range Standard: -20°F to +150°F (-29°C to +66°C). Extended: Options available for lower temperatures with weather covers. Pilot Gas Supply Typically filtered and regulated from the main line. Leakage Class Shutoff Class: ANSI/FCI 70-2 Class IV (standard metal seat). Flow Capacity (Cg) Varies by size; for example, a 2" EHU has a Cg of approximately 235, while a 6" EHU can have a Cg over 2000.

Technical Specifications / Parameters Parameter Specification Model Fisher 785C Type I/P (Current-to-Pressure) or E/P (Voltage-to-Pressure) Transducer Input Signal I/P: 4-20 mA DC (standard), other ranges available. E/P: 0-10 VDC (standard), other ranges available. Output Signal Standard: 3-15 psig (0.2-1.0 bar). Other Ranges: 3-27 psig, 6-30 psig, and others are available. Air Supply Pressure 20 to 55 psig (1.4 to 3.8 bar), typically 20 psig (1.4 bar) greater than the required output pressure. Air Consumption Static: Less than 0.2 SCFM (5.7 SLPM). Load: Varies with output. Accuracy Typically ±0.5% of span. Linearity & Hysteresis Typically ±0.5% of span. Repeatability Typically ±0.25% of span. Enclosure Rating NEMA 4X (Weatherproof and Corrosion-Resistant). Hazardous Area Approvals FM, CSA, and ATEX approvals available for Intrinsically Safe (IS) and Non-incendive (NI) applications. Supply Air Connection 1/4" NPT Female Output Air Connection 1/4" NPT Female Electrical Connection 1/2" NPT conduit connection. Ambient Temperature Range Standard: -40°F to +185°F (-40°C to +85°C). Materials Housing: Aluminum (polycarbonate for IS); Internal parts: Brass, Stainless Steel, Buna-N.

Technical Specifications / Parameters Parameter Specification Model Fisher 627 Type Scotch Yoke, Pneumatic Piston Actuator Action Double-Acting (Standard). Convertible to Spring-Return. Standard Air Supply Pressure 40 to 120 psig (2.8 to 8.3 bar). Torque Output Varies by specific size and supply pressure. Example for a size 60 at 80 psig: ~1800 lb-in (~203 Nm). (Refer to factory torque tables for exact values). Temperature Range Standard: -40°F to +180°F (-40°C to +82°C). High-Temp Options: Available with high-temperature seals and lubricants. Spring-Return Options Multiple spring ranges available to provide fail-open or fail-close action. Mounting Style Direct mounting to valve shaft according to ISO 5211 and other industry standards. Position Indicator Visual indicator showing valve position (Open/Closed). Port Connections 1/4" NPT (Standard). Materials Cylinder Body & Yoke: Aluminum with corrosion-resistant coating. Piston: Aluminum. Shaft & Hardware: Carbon Steel or Stainless Steel. Seals: Buna-N (Standard). Viton and others available. Accessories Compatible with Fisher field-mounted instrumentation like the 3570/3582 position transmitters, 1067 volume boosters, and limit switches.

Technical Specifications / Parameters Parameter Specification Model Fisher Type R232E Type Direct-Acting, Pressure Reducing Pilot Function Controls the outlet pressure of a main pilot-operated regulator. Sensed Pressure Downstream (Outlet) Pressure of the main regulator. Maximum Inlet Pressure (to Pilot) Up to 200 psig (13.8 bar) – This is the pressure available to load the main valve. Controlled Output Pressure The loading pressure sent to the main valve actuator, which is proportional to the sensed pressure. Set Pressure Range Varies with spring. Common ranges include 5" w.c. to 15 psig (12 mbar to 1 bar) and other subsets within a wider overall range. Supply Pressure Connection 1/4" NPT Output (Loading Pressure) Connection 1/4" NPT Sense Pressure Connection 1/4" NPT Diaphragm Material Butyl (standard for natural gas), other elastomers like EPDM or Nitrile available. Body Material Aluminum Spring Material Music Wire (standard, with corrosion-resistant coating). Temperature Range -20°F to +150°F (-29°C to +66°C) - standard elastomers.

Technical Specifications / Parameters Parameter Specification for P163A & P164 Model Fisher P163A (Atmospheric Vent), Fisher P164 (Vented) Type Direct-Acting, Spring-Loaded, Backpressure Pilot Function Controls the upstream pressure of a main pilot-operated backpressure regulator or relief valve. Sensed Pressure Upstream (Inlet) Pressure of the main regulator. Vent Configuration P163A: Vents to Atmosphere. P164: Vents to a separate, lower-pressure vent line. Maximum Inlet Pressure (to Pilot) Up to 400 psig (27.6 bar) for standard models. Set Pressure Range Varies with spring. Common ranges are available from very low pressures (inches of water) up to 400 psig. Supply Pressure Connection 1/4" NPT (This is the loading pressure from the main valve's relay). Sense Pressure Connection 1/4" NPT (Connected to the upstream process pressure). Vent Connection P163A: Typically has a vent screen or open port. P164: 1/4" NPT for connection to a vent header. Diaphragm Material Butyl (standard for natural gas), EPDM, Nitrile. Body Material Aluminum Spring Material Music Wire (standard, with corrosion-resistant coating). Temperature Range -20°F to +150°F (-29°C to +66°C) - standard elastomers.

Key Parameters Category Parameter Name Description & Typical Values Valve Specifications Valve Size 1" to 12" (DN 25 to DN 300) End Connections Flanged - ANSI Class 150 through 2500. RTJ (Ring Type Joint) is common for high-pressure services. Body Styles Globe (Standard), Angle (Excellent for severe erosive and cavitating services). Body Materials Carbon Steel (WCB) - Standard. Stainless Steel (CF8M/316), Alloy 20, Duplex Stainless Steel, Inconel. Pressure & Temperature Pressure Rating Up to ANSI Class 2500. Temperature Range Standard: -50°F to 450°F (-46°C to 232°C). Extended ranges from cryogenic to 1100°F (593°C) with special components. Internal Parts (Trim) Trim Design Cage-Guided, Balanced Plug - Standard. Trim Types Standard Trim, Multi-Stage Anti-Cavitation Trim (e.g., Whisper Trim III), Low-Noise Trim. Flow Characteristics Equal Percentage (Standard), Linear. Leakage Class Class II, III, or IV (metal-to-metal). Class IV, V, or VI (with optional soft seat). Trim Materials Stainless Steel (Standard), Hardened Stainless Steel (17-4PH), Stellite, Tungsten Carbide for extreme abrasion. Flow Capacity Flow Coefficient (Cv) Varies significantly by valve size and multi-stage trim design. Multi-stage trim inherently has a lower Cv than standard trim for the same valve size. Must be carefully calculated using Fisher sizing software. Actuator (Typical) Type Fisher 1051/1052 Size 60 or larger Piston Actuator is typical for high-thrust requirements. Large diaphragm actuators (e.g., Type 99) may be used for less demanding services.

Key Parameters Category Parameter Name Description & Typical Values Electrical Input Input Signal Standard: 4-20 mA DC (2-wire). Other Options: 10-50 mA, 1-5 VDC, etc. Input Impedance ~850 ohms at 20 mA (for 4-20 mA, 2-wire). Power Supply For 2-wire 4-20 mA, the loop power supply is typically 12-45 VDC. Pneumatic Output Output Pressure Ranges Multiple standard ranges, e.g.: • 3-15 psig (0.2-1.0 bar) • 6-30 psig (0.4-2.1 bar) • Other ranges up to 120 psig (8.3 bar) Air Supply Pressure Must be at least 3-5 psi (0.2-0.35 bar) above the maximum required output pressure. Typical max supply: 20 to 150 psig (1.4 to 10.3 bar). Performance Accuracy Typically ±0.5% of span. Sensitivity Typically 0.1% of span. Air Consumption (Static) Very low (e.g., < 0.5 SCFH) when output is stable. Air Flow Capacity (Dynamic) Very High. Up to ~30 SCFM (approx. 50 m³/h). Environmental & Physical Enclosure Rating NEMA 4X (IP66) - Weatherproof, watertight, and corrosion-resistant. Ambient Temperature Range -40°F to 180°F (-40°C to 82°C). Material Aluminum enclosure with corrosion-resistant coating. Mounting N480: Side-mounted on actuator yoke. N481: Bottom-mounted to actuator. Approvals Intrinsic Safety Available with appropriate intrinsic safety barriers (FM, CSA, SAA).

Key Parameters Category Parameter Name Description & Typical Values Valve Specifications Valve Size 1" to 8" (DN 25 to DN 200) End Connections Flanged - ANSI Class 150, 300, 600. RF (Raised Face) or RTJ (Ring Type Joint). Body Styles Globe (Standard), Angle (for erosive/cavitating services). Body Materials Carbon Steel (WCB) - Standard. Stainless Steel (CF8M/316), Alloy 20, Duplex Stainless Steel, and other alloys available. Pressure & Temperature Pressure Rating Up to ANSI Class 600. Temperature Range Standard: -50°F to 450°F (-46°C to 232°C). Extended ranges possible with special packing, seals, and materials. Internal Parts (Trim) Trim Design Cage-Guided, Balanced Plug - Standard. Flow Characteristics Equal Percentage (Standard), Linear, Quick Open. Trim Types Standard Trim, Multi-Stage Anti-Cavitation Trim, Low-Noise Trim. Leakage Class Class II, III, or IV (metal-to-metal). Class IV or V (with optional soft seat). Trim Materials Stainless Steel (Standard), Hardened Stainless Steel, Stellite, Tungsten Carbide. Flow Capacity Flow Coefficient (Cv) Varies significantly by valve size and trim. Consult specific Cv tables. Example: A 3" N551 can have a Cv from ~50 to over 200. Actuator (Typical) Type Fisher 657 or 667 (Spring-and-Diaphragm) for most applications. Piston actuators for high-thrust needs. Action Air-to-Open or Air-to-Close (field-reversible). Standard Signal 3-15 psig (0.2-1.0 bar).

Key Parameters Category Parameter Name Description & Typical Values Valve Specifications Valve Size 1/2" to 3" (DN 15 to DN 80) End Connections Flanged (ANSI 125, 150, 200, 300 lbs) or Screwed (NPT) Body Materials Cast Iron (Standard), Ductile Iron, Carbon Steel, Stainless Steel Pressure Ratings Maximum Inlet Pressure Varies by size and body material. Can be up to 400 psig (28 bar) or higher. Outlet Pressure Range Adjustable via spring. Multiple spring ranges available, e.g.: • 3 to 25 psig (0.2 to 1.7 bar) • 20 to 100 psig (1.4 to 6.9 bar) • 75 to 200 psig (5.2 to 13.8 bar) Pressure Rating ANSI Class 125, 150, 200, 300, etc. Internal Parts Trim Materials Stainless Steel (Standard poppet and seat). Diaphragm Material Reinforced Elastomer (e.g., NBR). Performance & Environmental Flow Capacity (Cv) Relatively high for its size. Consult Cv tables. Example: A 2" 630R can have a Cv of ~40-50. Leakage Class Class II (standard metal-to-metal seat). Class IV (with optional soft seat). Temperature Limits Standard: -20°F to 150°F (-29°C to 66°C). Higher temperatures possible with specific components.

Key Parameters Category Parameter Name Description & Typical Values General Specifications Actuator Type Pneumatic, Spring-Return (Single-Acting) Motion Linear (sliding-stem) Diaphragm Case Material Carbon Steel (Standard), Stainless Steel optional. Spring Housing (Yoke) Cast Iron or Carbon Steel. Air & Pressure Data Standard Supply Pressure 3-15 psig (0.2-1.0 bar) control signal. Maximum Supply Pressure Typically 50 psig (3.4 bar) for most sizes, but can be higher for specific configurations. Diaphragm Size Large diameters, e.g., 450 sq. in., 850 sq. in., etc., to generate high force. Thrust Output Stem Thrust Generates very high thrust. Specific values are defined by thrust charts based on air supply pressure, diaphragm size, and effective spring rate. • Example: A large Type 99 can produce thrust exceeding 50,000 lbs (222 kN). Spring Ranges Multiple spring ranges are available, defined by their spring rate (e.g., lbs per inch of travel). Performance & Physical Stroke Lengths Available in various standard stroke lengths (e.g., 1.5", 2", 3", 4", 6"). Action Air-to-Open (Fail Close) or Air-to-Close (Fail Open) - Field-reversible. Temperature Limits Standard: -20°F to 150°F (-29°C to 66°C). High-temperature kits available for up to 250°F (121°C).