Fisher™ 1051 and 1052 Size 33 Diaphragm Rotary Actuators (New Not Used)

General Description

Fisher™ 1051 and 1052 Size 33 diaphragm rotary actuators are designed for precise control of rotary valves, particularly suitable for on-off and throttle applications. Their ruggedness and reliability make them widely used in industrial environments, including the oil and gas, chemical, and refinery industries, where precision and durability are essential. Purchasing a used Fisher™ 1051 or 1052 is cost-effective because these actuators maintain excellent operating efficiency even after years of service.

Main Components and Structure

• Actuator Body : Made of steel or cast iron with anti-corrosion coating, to withstand aggressive environments.
• Diaphragm : Made of NBR (nitrile) or VMQ (silicone), depending on specific temperature requirements, with an operating range from -40°C to 149°C.
• Compression Spring : Adjustable via a spring seat to tailor compression to system needs.
• Lever and Bearings : Lever support via bearings for smooth rotation, which reduces wear over time.
• Position Indicators : Graduated disc and pointer to visually monitor valve position.
• Limit Stops : Externally adjustable, to limit valve shaft rotation to 60° or 90°.

Dimensions and Mechanical Specifications

• Diaphragm Pressure : Standard range of 0 to 1.2 bar (0 to 18 psig), up to 3.8 bar (55 psig) for some configurations.
• Maximum Valve Shaft Rotation : 90 degrees, adjustable up to 60 degrees with integral travel stops.
• Acceptable Valve Shaft Diameters:
  • F and G: 12.7 mm (1/2 inch), 15.9 mm (5/8 inch), or 19.1 mm (3/4 inch).
  • H: 22.2 mm (7/8 inch) with double flat surfaces.
  • J: 9.5 mm (3/8 inch), 12.7 mm (1/2 inch), or 15.9 mm (5/8 inch).
• Approximate Weight : Fisher 1052: 21 kg (46 lbs).

Procedure for Use

1. Mounting : Install the actuator onto the valve using the appropriate mounting adapter (F, G, H or J).
2. Pressure Source Connection : Connect the actuator to the air pressure source using the standard 1/4 NPT internal connections or the 1/2 or 3/4 NPT options.
3. Stop Adjustment : Set the travel stops to limit rotation as needed for your system.
4. Motion Check : Verify that the valve opens and closes correctly through the movements of the actuator.
5. Positioner Calibration (if equipped) : Adjust the positioner to achieve precise control of the valve position.

Maintenance of Used Actuator

• Diaphragm Inspection : Periodically check the integrity of the diaphragm for signs of wear or damage.
• Lubrication of Bearings : Lubricate the lever bearings to maintain smooth rotation.
• Spring Check : Check the compression of the springs to ensure proper movement.
• Checking Connections : Check pressure connections regularly to avoid leaks.

Workable Materials

The Fisher™ 1052 Size 33 is ideal for controlling fluids such as gas, steam, water, oils and other chemicals compatible with the actuator materials.

Benefits of Buying a Used Fisher™ 1052

1. Proven Reliability : These actuators are designed to last, making them perfect for purchasing as used machinery.
2. Cost Reduction : A used actuator can offer excellent performance at a fraction of the cost of a new one.
3. Accessory Availability : Accessories, such as positioners and magnetic switches, can be added to enhance the functionality of the actuator.

Application Sectors

• Chemical Industry : Regulation of valves to control the flow of chemical substances.
• Oil & Gas Plants and Refineries : Valve control in high pressure and variable temperature environments.
• Water Management : Used in wastewater and drinking water control systems.

Conclusion

Purchasing a used Fisher™ 1051 or 1052 Size 33 rotary diaphragm actuator is a smart choice for many industries, thanks to its combination of reliability, low cost, and availability of parts and accessories. Regular maintenance and thorough inspection will ensure your actuator continues to perform optimally for many years.