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Brand
Fisher
Fisher is the control valve brand of Emerson. Its history starts in 1880 in Marshalltown, Iowa, where William Fisher, working at the town waterworks, invented a constant-pressure pump governor and founded a company to make it. Emerson bought Fisher Controls in 1992, and Marshalltown remains a main engineering and manufacturing site for Fisher valves. The brand covers control valves, actuators, FIELDVUE digital valve controllers, regulators and level controllers. Seven Star LLC is an independent supplier listing Fisher control valves, actuators, positioners, regulators and spare parts for buyers in Oman and the GCC. Replacement valves and trim are matched from the serial number on the valve nameplate.
Read the full brand profile- 26 products
- 5 categories
Brand profile
About Fisher
- Founded
- 1880
- Headquarters
- Marshalltown, USA
- Speciality
- Control valves and regulators
- Listed with us
- 26 products in 5 categories
Fisher is the control valve brand of Emerson. Its history starts in 1880 in Marshalltown, Iowa, where William Fisher, working at the town waterworks, invented a constant-pressure pump governor and founded a company to make it. Emerson bought Fisher Controls in 1992, and Marshalltown remains a main engineering and manufacturing site for Fisher valves. The brand covers control valves, actuators, FIELDVUE digital valve controllers, regulators and level controllers.
Seven Star LLC is an independent supplier listing Fisher control valves, actuators, positioners, regulators and spare parts for buyers in Oman and the GCC. Replacement valves and trim are matched from the serial number on the valve nameplate.
Fisher company profile
| Origin | William Fisher’s constant-pressure pump governor, Marshalltown, Iowa, USA (1880) |
|---|---|
| Ownership | Owned by Monsanto from 1969; sold to Emerson in 1992 and combined with Rosemount as Fisher-Rosemount, later Emerson Process Management. Today a brand of Emerson. |
| Main site | Marshalltown, Iowa, USA |
| Product families | Sliding-stem and rotary control valves, spring-diaphragm and piston actuators, FIELDVUE digital valve controllers, pressure regulators, displacer and digital level controllers |
| Typical duty | Throttling control of liquids, gas and steam, high-pressure and severe service, instrument supply and gas pressure reduction |
Milestones
- 1880: William Fisher builds a constant-pressure pump governor in Marshalltown, Iowa.
- 1969: Monsanto acquires Fisher Controls.
- 1992: Emerson buys Fisher and combines it with Rosemount as Fisher-Rosemount, later Emerson Process Management.
Fisher valves, actuators and instruments
| Series | Type | Typical use |
|---|---|---|
| easy-e ES, ET, EZ | Sliding-stem globe and angle valves | Cage-guided globe valves: ES with unbalanced plug, ET with balanced trim for higher pressure drop; EZ unbalanced with a seat ring retainer for viscous or dirty fluids |
| GX | Compact globe valve with integral actuator | Standard chemical and process duty where a compact valve package is preferred |
| HPT, HPAT | High-pressure globe and angle valves | Pressure classes up to ASME CL2500, compressor recycle and high-pressure letdown |
| V150, V200, V300, V250 | Vee-Ball segmented ball and full-bore ball control valves | High-capacity control of liquids, gas and fibrous or slurry service |
| CV500 | Eccentric rotating plug valve | Erosive, coking and dirty service |
| 8560, 8580 | High-performance butterfly valves | Large-line throttling and on-off control |
| 657, 667, 1052, 1061, easy-Drive | Spring-diaphragm, piston and electric actuators | 657 and 667 for sliding-stem valves; 1052 and 1061 for rotary valves; easy-Drive where no air is available |
| FIELDVUE DVC6200, DVC2000, 3610J | Digital valve controllers and positioners | HART positioning with valve diagnostics; 3610J pneumatic positioner for rotary actuators |
| 627, 1098-EGR, 67C | Pressure regulators | Gas pressure reduction, pilot-operated regulation and instrument air supply |
| DLC3100, 2500 | Digital and pneumatic level controllers | Displacer level and interface on separators and scrubbers |
Where Fisher valves are used
Fisher control valves and regulators are standard equipment in oil and gas production, refineries, gas processing and LNG, petrochemicals, power plants and water systems. Typical loops are separator level and pressure, compressor anti-surge and recycle, fuel gas pressure reduction, feedwater and steam control, and chemical dosing. FIELDVUE controllers add diagnostics that help plan valve maintenance before a turnaround.
Ordering Fisher valves and spare parts: what we need
For spares, send the serial number from the valve nameplate together with the valve type, size, pressure class, trim and actuator type and size. Emerson keeps the build record behind the serial number, so plug, seat ring, cage, packing and diaphragm kits can be matched without guesswork. For a FIELDVUE or regulator, send the full model and type number and the mounting details. For a new valve add the process data: fluid, flow range, inlet and outlet pressure, temperature, leakage class, fail position, air supply and signal.
Facts checked against Emerson Fisher product information and published company histories, October 2026.
Fisher products by category
Most viewed Fisher products
Request a Quote for Fisher Products
Looking for Fisher parts not listed here, or pricing for a project? Send us the part numbers and quantities. Seven Star LLC sources genuine Fisher products for customers across Oman and the GCC and replies with a formal quotation.
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Frequently Asked Questions
Is Fisher part of Emerson?
Yes. Emerson acquired Fisher Controls from Monsanto in 1992. Fisher is now Emerson's brand for control valves, actuators, FIELDVUE digital valve controllers and regulators.
What is a FIELDVUE DVC6200?
The DVC6200 is a HART digital valve controller that positions pneumatic control valves from a 4-20 mA signal. It has a non-contact linkage-less position sensor and diagnostics for valve friction, air supply and travel deviation, and versions exist for FOUNDATION Fieldbus and safety instrumented systems.
What information identifies Fisher control valve spare parts?
The serial number on the valve nameplate is the key, because Emerson keeps the original build record behind it. Add the valve type, size, pressure class, trim description and actuator type and size, and photos of all nameplates.
What is the difference between Fisher easy-e ES, ET and EZ valves?
All three are easy-e sliding-stem globe valves. The ES uses a single-port, cage-guided unbalanced plug. The ET uses balanced trim, which lowers the actuator force needed at higher pressure drops. The EZ is an unbalanced design with a seat ring retainer instead of a cage, suited to viscous, dirty or hard-to-handle fluids.
Which Fisher valve is used for dirty or erosive service?
Rotary designs such as the CV500 eccentric rotating plug valve and Vee-Ball segmented ball valves are often chosen for erosive, coking or slurry service, because their flow path and trim handle solids better than many globe valve trims.