Emerson 38B5786X132 Single Acting Direct Pneumatic Relay | Replacement, Equivalent & Selection Guide
The Emerson 38B5786X132 is a single acting direct pneumatic relay designed for precise signal amplification and pressure conversion in industrial control systems. This page provides full technical specifications, compatible replacement models, application guidance, and sourcing information to help engineers and procurement teams make confident decisions.
Technical Specifications
- Manufacturer: Emerson (Fisher Controls)
- Part Number / SKU: 38B5786X132
- Type: Single Acting Direct Pneumatic Relay
- Series: Fisher Pneumatic Relay Series
- Action: Single Acting, Direct
- Supply Pressure: Typically 20–100 psig (1.4–6.9 bar)
- Output Signal: 3–15 psig (0.2–1.0 bar) standard pneumatic
- Body Material: Aluminum / Zinc alloy (refer to original datasheet)
- Weight: Approx. 350 g
- Mounting: Direct mount to Fisher positioner or actuator yoke
- Compliance: Designed for use in Fisher DVC / 3582 / 3610 positioner systems
Compatible Replacement & Equivalent Models
The following models are commonly evaluated as replacements or equivalents for the Emerson 38B5786X132. Always verify supply pressure range, port configuration, and mounting dimensions before substitution.
- Emerson / Fisher: 38B5786X012, 38B5786X022, 38B5786X042 (same relay family, different trim levels)
- Emerson Fisher 67CFR: Pressure-reducing relay, compatible in many single-acting positioner circuits
- Emerson Fisher 252: Pneumatic relay for volume boosting applications
- Rotork YT-1000: Pneumatic positioner relay — verify port sizing
- Siemens SQM / Samson 4763: Cross-reference required; consult engineering datasheet
- Generic 1:1 Relay (3–15 psig): Suitable for non-critical signal repeating applications
Note: Konmask.com recommends using original Emerson parts for safety-critical or SIL-rated loops. Contact us for cross-reference verification.
Why Choose the Original Model
- ✅ OEM Precision: Factory-calibrated for Fisher positioner systems — no field adjustment required
- ✅ Proven Reliability: Widely deployed in refinery, chemical, and power generation environments
- ✅ Spare Parts Availability: Supported by Emerson’s global service network
- ✅ Traceability: Full lot traceability and material certification available
- ✅ Warranty: Backed by Emerson’s standard product warranty
Typical Applications
- Pneumatic signal amplification in control valve positioner circuits
- Pressure repeating and volume boosting for actuator supply lines
- Single-acting cylinder control in process automation
- Oil & gas upstream / midstream control systems
- Chemical plant distributed control system (DCS) pneumatic loops
- Power plant boiler feed and turbine control circuits
System Compatibility
- Positioners: Fisher 3582, 3610J, DVC2000, DVC6000 series
- Actuators: Fisher 657, 667, 585C spring-diaphragm actuators
- Control Systems: Compatible with 4–20 mA I/P converters and standard 3–15 psig pneumatic signal loops
- Instrument Air: Requires clean, dry instrument air per ISA 7.0.01
Selection Guide
Use the following criteria to confirm the 38B5786X132 is the correct relay for your application:
- Step 1 — Action Type: Confirm single acting direct action is required (output increases with input)
- Step 2 — Pressure Range: Verify supply pressure is within 20–100 psig; output 3–15 psig
- Step 3 — Mounting Interface: Match port thread size and mounting bolt pattern to existing positioner
- Step 4 — Environment: Confirm ambient temperature range and hazardous area classification (if applicable)
- Step 5 — Replacement vs. Upgrade: If upgrading to a digital positioner (DVC6200), the relay may be integrated — contact us for guidance
Quality Assurance & Sourcing
- 🔍 Source: Authorized distributor stock and verified surplus channels
- 📋 Inspection: Each unit visually inspected and function-tested prior to shipment
- 📦 Packaging: Anti-static, moisture-proof packaging with original or equivalent labeling
- 📄 Documentation: Certificate of conformance, material traceability report available on request
- 🌐 Lead Time: In-stock items ship within 1–3 business days; contact us for bulk order lead times
How to Order
- Click Add to Cart or Buy Now on this page
- For bulk orders (>5 units) or urgent requirements, email support@konmask.com
- Provide your PO number, required delivery date, and shipping address for a formal quotation
- Payment: T/T, PayPal, credit card accepted
Replacement & Compatibility FAQ
Q: Can I use 38B5786X012 instead of 38B5786X132?
A: Both are in the same relay family. The X132 suffix indicates a specific trim/material configuration. Verify the suffix matches your positioner’s requirement before substituting.
Q: Is this relay compatible with Fisher DVC6000?
A: The DVC6000 series uses an integrated I/P and relay module. The 38B5786X132 is typically used with older 3582/3610 positioners. Contact us to confirm compatibility with your specific model.
Q: Do you provide a warranty on surplus stock?
A: Yes. All units sold by Konmask.com carry a 90-day functional warranty. Extended warranty available on request.
Q: Can you source other Emerson Fisher relay part numbers?
A: Yes. Contact us with your full part number and we will provide availability and pricing within 24 hours.
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