Technical Parameters
Parameter Specification / Options
Series Fisher G-Series
Valve Type Globe Body, Angle Body
Flow Characteristics Linear, Equal Percentage, Quick Opening
End Connections Flanged (ANSI Class 150, 300, 600, 900, 1500, 2500), Butt-Weld, Screwed (NPT)
Body Materials Carbon Steel (WCB), Stainless Steel (CF8/CF8M), Alloy Steel (WC6/WC9), Ductile Iron
Size Range 1/2" to 24" (DN 15 to DN 600)
Pressure Rating ANSI Class 150 to 2500
Temperature Range Standard: -50°F to 1000°F (-46°C to 538°C). Extended ranges available with special bonnets and packing.
Leakage Class ANSI Class II, IV, V, VI (depends on trim design)
Trim Types Micro-Form™ (Standard), Cage-Guided (Balanced & Unbalanced), Noise Abatement Trim, Anti-Cavitation Trim
Actuator Types Fisher 657/667 Diaphragm Actuators (Spring-Return & Double-Acting), Piston Actuators
Technical Parameters
Parameter Specification
Model Fisher DSA
Type Top-and-Bottom Guided, Single-Port Globe Valve
Trim Type Unbalanced
Flow Characteristic Linear, Equal Percentage
End Connections Flanged (ANSI Class 1500, 2500); Butt-Weld
Body Materials Forged Carbon Steel (A105), Cast Carbon Steel (WCB), Stainless Steel (CF8/CF8M)
Size Range 1" to 8" (DN 25 to DN 200)
Pressure Rating ANSI Class 1500: 3600 psig (248 bar)
ANSI Class 2500: 6000 psig (414 bar)
Temperature Range -450°F to 1200°F (-268°C to 649°C)
Leakage Class ANSI Class IV (Standard), ANSI Class V & VI
Technical Parameters
Parameter Specification
Model Fisher V250 Vee-Ball Valve
Type Rotary V-Notch Ball Control Valve
Flow Characteristic Equal Percentage (inherent from the V-notch profile)
Shut-Off Class ANSI Class VI (Bubble-tight) with standard non-metallic seats.
End Connections Flanged (ANSI Class 150 & 300)
Body Materials Carbon Steel (WCB), Stainless Steel (CF8, CF8M)
Ball & Stem Material Stainless Steel (standard)
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)
ANSI Class 300: 720 psig (49.6 bar)
Flow Capacity (Cv) Varies by size. Example (Class 150 Flanged):
- 3 inch: ~ 290
- 6 inch: ~ 1150
- 8 inch: ~ 2050
Sizes (Pipe Size) 1" to 12" (DN 25 to DN 300)
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