Product Description
Emerson Fisherr 3572 Pneumatic Valve Positioner: Product Overview, Key Features, and Competitive Advantages
Product Overview
The Emerson Fisherr 3572 Pneumatic Valve Positioner is a high-performance, field-reversible valve positioning solution designed for precise control in demanding industrial applications. As part of the Fisherr 3570 series, the 3572 model is engineered to work with pneumatic piston, diaphragm, or cylinder actuators, ensuring accurate valve stem positioning proportional to input signals from control systems. Its robust construction and adaptability make it a critical component in industries such as nuclear power, oil and gas, chemical processing, and power generation .
The Fisherr 3572 operates on the displacement-balanced pneumatic principle, leveraging mechanical feedback mechanisms to maintain valve stability and responsiveness. It is certified for hazardous environments (ATEX, CUTR) and supports both standard and specialized configurations, ensuring compliance with global safety and performance standards .
Key Features
Precision Control and Flexibility
Input Signal Range: Compatible with standard pneumatic signals of 3-15 psi (0.2-1.0 bar) or 6-30 psi (0.4-2.0 bar). Optional split-range configurations allow two valves to be controlled by a single signal .
Output Pressure: Delivers up to 150 psi (10.3 bar), enabling precise actuation even under high-load conditions.
Field-Reversible Action: Direct or reverse action can be easily reconfigured without additional parts, reducing downtime during maintenance .
Robust Design for Harsh Environments
Material Durability: Constructed with corrosion-resistant materials suitable for extreme temperatures and radiation exposure, making it ideal for nuclear applications (e.g., EPDM diaphragms and meta-aramid fabric components) .
Hazardous Area Certifications: Compliant with ATEX Group II Category 2 (gas/dust) and CUTR standards, ensuring safe operation in explosive environments .
Simplified Installation and Maintenance
Actuator Compatibility: Supports mounting on pneumatic piston, diaphragm, or long-stroke cylinder actuators. Low-profile yokeless design allows direct mounting onto valve bonnets .
Pre-Calibrated Settings: Factory-set sensitivity, span, and starting point reduce commissioning time. Recalibration is only required if operating conditions change .
Advanced Feedback Mechanism
Displacement-Balanced Design: Utilizes a feedback cam and nozzle-flapper system to achieve precise valve positioning. Mechanical linkages translate valve stem movement into proportional adjustments, minimizing hysteresis .
Customizable Configurations
Optional Accessories: Includes snubbers for vibration damping, high-temperature kits, and nuclear-specific variants (e.g., 3572NS with enhanced radiation resistance) .
Product Highlights (Selling Points)
Superior Reliability in Critical Applications The Fisherr 3572 is trusted in nuclear power plants for its ability to maintain performance under high radiation and elevated temperatures. Its EPDM components ensure longevity in environments where petroleum-based lubricants are prohibited .
Optimized for Safety and Compliance
Fail-Safe Options: Configurable as air-to-open (AO) or air-to-close (AC) to meet safety requirements for fail-open or fail-closed operations.
ATEX/CUTR Compliance: Meets stringent regulations for hazardous area installations, reducing liability risks .
Reduced Total Cost of Ownership
Low Maintenance: Pre-calibrated settings and modular components minimize servicing frequency.
Energy Efficiency: Operates effectively at supply pressures as low as 35 psig (2.4 bar), reducing compressed air consumption .
Versatility Across Industries
Broad Actuator Support: Compatible with Fisherr, Masoneilan, and other leading actuator brands.
Scalable Solutions: From general process control to nuclear-grade systems, the 3572 adapts to diverse operational needs .
Product Parameters
| Parameter |
Specification |
Notes/Special Features |
| Model Number |
Fisherr 3572 |
Part of the 3570 series (includes 3570, 3570C, 3570P, 3571, 3572 models) |
| Input Signal |
Pneumatic |
Ranges: 3-15 psi / 6-30 psi or 0.2-1.0 bar / 0.4-2.0 bar |
| Output Signal |
Pneumatic pressure |
Maintains valve stem position proportional to input signal |
| Certifications |
ATEX, CUTR, PED |
Compliant with Group II/III Category 2 equipment standards |
| Mounting Type |
Actuator-mounted |
Compatible with pneumatic diaphragm, piston, or cylinder actuators |
| Max Outlet Pressure |
150 psi (10.3 bar) |
Operates with supply pressures as low as 2.4 bar (35 psig) |
| Operating Temperature |
Standard & High Temperature |
Specific temperature ranges not detailed in sources |
| Supply Media |
Air, Natural Gas |
Requires clean, dry, oil-free air supply |
| Diagnostics |
No |
Basic design without diagnostic features |
| Actuator Compatibility |
Pneumatic diaphragm, piston, or cylinder actuators |
Supports maximum actuator travel up to 206 mm (8.125 inches) |
| Split-Range Capability |
Yes |
Uses half of standard input ranges for dual-valve control |
| Approx. Weight |
2.7 kg (6 lbs) |
Packaged in cardboard boxes |
| Packaging |
Cardboard box |
Dimensions not specified; designed for secure shipping |
| Supply Ability |
100 sets/month |
Production capacity stated by the supplier |
Competitive Advantages
Proven Performance in Nuclear Applications The 3572's nuclear-specific variant (3572NS) features radiation-resistant materials, validated through extensive testing in nuclear power plants like the Fujian Fuqing Nuclear Power Station. Its displacement-balanced design ensures stability even during rapid load changes .
Enhanced Diagnostic Capabilities While the 3572 lacks built-in diagnostics, its mechanical simplicity ensures reliability. For advanced monitoring, Emerson offers complementary solutions like the 3582i Electro-Pneumatic Positioner with digital interfaces .
Global Support Network
Rapid Delivery: Common models are kept in stock, with a lead time of ≤3 days for standard configurations.
Technical Expertise: Emerson's 24/7 support team provides troubleshooting, calibration guidance, and lifecycle management .
Future-Proof Design
Retrofit-Ready: Integrates seamlessly with legacy systems while supporting upgrades to smart positioners.
Regulatory Future-Proofing: Certifications align with evolving global standards, ensuring long-term compliance .
Applications
Nuclear Power
Used in reactor coolant systems (e.g., RRA, RCV) for precise flow control under extreme conditions .
Oil & Gas
Manages pressure relief and pipeline flow in refineries and upstream facilities.
Chemical Processing
Controls corrosive or high-purity fluid handling systems.
Power Generation
Regulates steam and feedwater in thermal and combined-cycle plants.
Packaging & Shipping
Packaging: Original cardboard box packaging
Company Profile
Company Profile
KERUI (weifang) Automation Equipment Co., Ltd. specializes in industrial automation instrument development, production and sales, technical services, and supporting equipment supply of specialized companies. The main products are flow meters, level meters, temperature meters, pressure meters, electrical meters, thermal intelligent meters, programmable controllers (PLC), DCS distributed control systems, and eight series of more than 1,000 specifications. Its products and technologies are widely used in electric power, metallurgy, petrochemicals, environmental protection, plastics, food, printing, tobacco, textile, dyeing, and other fields.
We can offer rosemount, Endress+Hauser, yokogawa, Siemens, FISHERR,Koso, Samson, Abzil, Neles,UE etc, Brands.
If you need anything please feel free to contact me.
FAQ
Q: How long will you give me the reply?
A: We will reply to you as soon as we see the information
Q: What is the delivery time?
A:The products in stock will be shipped after receiving the payment, and the products that need to be ordered are subject to the factory time.
Q: How about your package?
A: Do not worry about the package, we have rich experience in packing.
Q: How about the payment terms?
A:You can choose T/T.
Q: What is the MOQ?
A:1PC.
Q: Can I get a lower price if I order large quantities?
A: Yes, cheaper prices with more bigger size orders.
Q:After sales and warranty?
A: We provide one year warranty lifetime technical support services.
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