Description
Unboxing & Hardware Overview
- Manufacturer & Architecture: Emerson / Fisher Controls (Process Management & Valve Automation Division)
- Part Number / Model: 38B5786X132 (Catalog Designation: Pneumatic Relay / Interface Module)
- Product Type: Precision Pneumatic Relay / Air Relay Component for Control Valves
- Physical Dimensions: Compact industrial modular block design tailored for integrated mounting on Fisher valve positioners or pneumatic actuators
- Estimated Shipping Weight: ~1.0 lb (0.45 kg) enclosed in industrial anti-static packaging and protective structural cushioning
- Primary Condition Status: Factory New / New Surplus / OEM Genuine Spare Part (verify specific revision tags and matching actuator model requirements prior to field installation)
Product Introduction
The Emerson / Fisher 38B5786X132 is a high-precision pneumatic relay component engineered for industrial valve control loops. Typically deployed within Fisher FIELDVUE digital valve positioners or modular pneumatic control systems, this relay serves as a critical interface element between electronic control signals and heavy-duty pneumatic actuators.
By accurately amplifying or directing pneumatic supply pressures, it ensures rapid response times, tight positioning control, and high stability for control valves operating in critical process environments such as oil and gas refineries, chemical plants, and power generation facilities.
Core Technical Specifications
| Parameter | Value |
| Product Model | 38B5786X132 |
| Manufacturer | Emerson / Fisher Controls |
| Device Function | Pneumatic Relay / Air Pressure Interface Component |
| Application Ecosystem | Fisher FIELDVUE digital valve positioners and pneumatic control assemblies |
| Supply Pressure Range | Standard instrument air up to typical maximum ratings (verify local regulator setpoints, generally up to 100–150 psi max) |
| Action Type | Single-acting / direct-acting pneumatic control interface |
| Wetted Materials | Corrosion-resistant industrial grade metals and engineered polymer seals suited for instrument air |
| Operating Temperature | -40^\circC to +85^\circC (-40^\circF to +185^\circF) standard industrial range |
Compliance & Standards Alignment
- Manufactured in accordance with strict Emerson and Fisher quality assurance protocols, ISO standards, and industrial process control directives.
- Engineered for reliable operation within hazardous plant areas when installed as part of an approved intrinsically safe or explosion-proof positioner assembly.
Technical Note: Pneumatic relays are sensitive to particulate contamination and moisture in instrument air supplies. Always ensure that plant instrument air meets ISO 8573-1 Quality Class standards (dry, oil-free, and filtered) to prevent internal port clogging or diaphragm degradation.
Storage & Asset Preservation Guidelines
- Store the pneumatic relay module inside its original factory protective packaging in a clean, dry, climate-controlled indoor warehouse environment.
- Keep protective port plugs tightly fitted over all pneumatic connections until the exact moment of physical installation to prevent dust or foreign debris from entering the internal chambers.
- Avoid exposing the unit to heavy mechanical shocks, corrosive chemical vapors, or extreme temperature fluctuations during storage.
Physical Installation Prerequisites
- Ensure that the associated control valve assembly, supply air headers, and pressure lines are completely isolated, vented, depressurized, and locked out (LOTO) prior to unbolting or replacing the relay.
- Inspect internal O-rings, mounting gaskets, and interface surfaces for cleanliness and integrity before securing the unit to the positioner manifold.
- Torque all mounting screws evenly in a crisscross pattern to recommended manufacturer specifications to prevent pneumatic leaks across gasket boundaries.
Buyer’s FAQ & Logistics
Q: What Harmonized System (HS) code applies to this Emerson Fisher pneumatic relay?
A: Industrial process control valves, positioners, and pneumatic relay components typically classify under HS code 8481.80 (Appliances for pipes, boiler shells, tanks, vats or the like) or 9026.20. Confirm final details with your licensed customs broker.
Q: Is part 38B5786X132 compatible with all Fisher FIELDVUE positioners?
A: This part number is engineered for specific model configurations within the Fisher ecosystem. Always cross-reference your positioner’s serial number and technical manual to confirm part compatibility before deployment.
Q: Is the listed online price final for procurement?
A: Note: Price is subject to market availability, batch surplus tiers, and global shipping logistics; contact our technical sales desk for a formal, time-sensitive quotation.
