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38B5786X092

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The Fisher 38B5786X092 is a pneumatic relay assembly for DVC6200 valve controllers, supporting single-acting reverse applications with standard or low-bleed operation.
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Technical specifications for 38B5786X092

  • Manufacturer:
    Emerson
  • Part Number:
    38B5786X092
  • Product Family:
    Fisher
  • Product Type:
    Relay Assembly
  • Stock:
    1
  • Primary Application:
    Fisher DVC6200 Digital Valve Controller
  • Action Type:
    Single-acting reverse (relay B)
  • Function:
    Converts electrical signal to pneumatic output
  • Included Components:
    Shroud, relay seal, mounting screws
  • Process Control:
    Flow, pressure, temperature, liquid level
  • Service:
    OEM genuine spare part
  • Weight:
    0.35 kg
  • Estimated shipping dimensions:
    5x5.2x4.8cm
  • Tariff Code:
    8536419090
  • Country of origin:
    USA
  • Place of shipment:
    Xiamen, Fujian, China
By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

More Information

Overview Manuals Specifications Application Performance Compatibility

Features:

  • Provides precise pneumatic output for reverse-acting single-acting actuators
  • Available in standard, low-bleed, and low-temperature variants
  • Converts electrical signal to pneumatic pressure for valve actuation
The 38B5786X092 is a dedicated pneumatic relay assembly engineered for single-acting reverse applications in the Fisher DVC6200 digital valve controller platform. This "relay B" configuration is specifically designed for valve assemblies requiring a reverse-acting output signal. The relay accurately converts the controller's electrical signal into a proportional pneumatic output that drives the actuator, ensuring precise positioning. Its robust construction guarantees reliable performance in demanding environments. This assembly is the correct replacement for servicing units that require reverse-acting control. By using the 38B5786X092, operators can maintain the integrity and performance of their valve assemblies.

The 38B5786X092 is part of a flexible relay family that offers application-specific customization. It is available in variants including standard (38B5786X092), low-bleed (38B5786X182), and low-temperature (38B5786X202) . This modularity allows the relay to be adapted to specific process requirements. The 38B5786X092 is used in a wide range of process control applications, including flow, pressure, temperature, and liquid level control . This versatility makes it a practical choice for upgrading or maintaining control systems. Operators can select the variant that best meets their environmental and performance needs.

The 38B5786X092 is manufactured as a genuine OEM spare part, meeting rigorous quality and reliability standards . It is designed to withstand demanding industrial environments, providing a secure and leak-free connection. The assembly typically includes a shroud, relay seal, and mounting screws for a complete installation package . This robust construction ensures a long service life and minimizes the risk of failure, making it a dependable component for critical control loops in power generation, oil and gas, and chemical processing.

The 38B5786X092 Fisher Relay Assembly may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).

Fisher 38B5786X092 Relay Assembly Manuals, Datasheets, Drivers, Link Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
Fisher 38B5786X092 Relay Assembly Specs

General

  • Manufacturer Fisher
  • Model 38B5786X092
  • Condition New Original ready stock
  • Product Family CL6821X1-A5 41B5222X422,CL6824X1-A2 12P0767X012,CL6828X1-A1 12P1395X062
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
  • Oil & Gas (Upstream & Downstream): Deployed inside digital valve controllers on offshore drilling platforms, gathering networks, and refinery distillation columns to modulate flow and pressure.
  • Chemical & Petrochemical Processing: Used to regulate the delivery of highly volatile gases, liquids, and polymers where responsive control valve actions are essential for facility safety.
  • Power Generation Facilities: Integrated into high-temperature steam pipelines, feedwater modulation setups, and cooling loops inside thermal or gas-fired power plants.
  • Reverse Action Logic: The relay translates an increasing pneumatic or electronic internal control signal into a decreasing output pressure to the valve actuator, natively handling precise fail-safe orientations (e.g., fail-closed or fail-open requirements depending on the actuator construction).
  • Standard Bleed Volume: Designed with standard pneumatic bleed parameters, balancing fast control loop response times with a predictable steady-state air consumption layout.
  • Dynamic Throttling Response: Minimizes deadband, stick-slip, and overshoot issues, allowing the valve positioner to transition the control valve smoothly to exact percentage steps within milliseconds.
  • Primary Device Compatibility: Specifically designed and verified to mount and operate inside the globally utilized Fisher FIELDVUE DVC6200 and DVC6205 digital valve controllers.
  • Interchangeable Logic Variants: It can be swapped physically and logically in field controller frames that require a conversion to Relay B (Single-Acting Reverse). It serves as a direct system alternative to Relay A (Double-Acting) or Relay C (Single-Acting Direct) depending on the field actuator setup.
  • Host Interoperability (via DVC Core): While this is a purely mechanical/pneumatic assembly, once bolted into a DVC6200/DVC6205 housing, it communicates diagnostics seamlessly upstream via the digital controller's HART, Foundation Fieldbus, or PROFIBUS industrial protocols to a central Emerson DeltaV DCS or asset management software suite.
Description
The Fisher 38B5786X092 is a pneumatic relay assembly designed as a critical component for the Fisher DVC6200 series digital valve controllers. This relay is specifically configured for single-acting reverse applications, making it essential for valve assemblies that require a reverse-acting output signal.

The Fisher 38B5786X092 can be specified with different bleeds and temperature ranges, including standard, low-bleed, and low-temperature variants . The 38B5786X092 is available with a 38B5786X182 (low-bleed) or 38B5786X202 (low-temperature) option.

The Fisher 38B5786X092 is manufactured to rigorous standards, featuring a robust construction designed to withstand harsh industrial environments. The relay assembly typically includes a shroud, relay seal, and mounting screws . As a pneumatic component, the 38B5786X092 is critical for converting the controller's electrical signal into a proportional pneumatic output, driving the actuator to the desired positio

The Fisher 38B5786X092 is a genuine OEM spare part, ensuring reliable and consistent performance . It serves as a replacement or upgrade for existing relay assemblies in DVC6200 units, helping to maintain precise control and extend the service life of the valve assembly

Alternative Names
38B5786XO92 01984-2518-0002 01984-4080-0001 01984-4282-0001 CL6721X1-A3 41B5215X122 CL6827X1-A1 12P1392X042 CL6721X1-A4 41B5215X132 CL6821X1-A5 41B5222X422
Technical notes
The Fisher 38B5786X092 is a pneumatic relay assembly for DVC6200 controllers, supporting single-acting reverse service. Variants include standard, low-bleed, and low-temperature options. Used in flow, pressure, and temperature control. Includes shroud and seal. Genuine OEM spare part
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FAQS

The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
What is the primary function of the Fisher 38B5786X092?
It is a pneumatic relay assembly for the DVC6200 valve controller that converts electrical signals into precise pneumatic pressure to drive a single-acting reverse-acting actuator
How does the 38B5786X092 differ from other relay assemblies?
It is specifically designed for single-acting reverse applications, unlike the 38B5786X052 (double-acting) or 38B5786X132 (single-acting direct) variants
What are the available variants of the 38B5786X092?
Variants include standard (38B5786X092), low-bleed (38B5786X182), and low-temperature (38B5786X202) to suit different environmental requirements
What does the 38B5786X092 assembly include?
The assembly typically includes the relay body, a protective shroud, a relay seal, and mounting screws for installation

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