Description
Overview
The 38B5786X132 pneumatic relay from Emerson is a compact, high‑precision air relay designed to support control valve positioners and pneumatic actuation systems. Engineered for stable pressure regulation and fast response, it is commonly paired with FIELDVUE digital valve controllers to enhance control loop performance and maintain reliable valve operation in demanding process environments.
Functional Characteristics
The 38B5786X132 relay operates as a single‑acting, direct‑acting pneumatic device that amplifies or modulates air signals within a control system. Its internal design ensures minimal air consumption at steady state while providing rapid output changes when commanded. This makes it suitable for applications requiring tight control accuracy and fast dynamic response.
The relay supports a wide supply pressure range and maintains consistent output across varying load conditions. Its rugged construction allows it to perform reliably in harsh industrial settings, including extreme temperatures and high‑vibration installations.
Technical Specifications
| Parameter |
Specification |
| Model |
38B5786X132 |
| Brand |
Emerson |
| Product Type |
Pneumatic Relay |
| Product Series |
Emerson Field Device Accessories |
| Condition |
Brand New |
| Weight |
0.34 kg |
| Dimensions |
12.1 × 5.2 × 16.6 cm |
| Origin |
USA |
| Minimum Order Quantity |
1 |
| HS Code |
8537101190 |
| System Integration |
DCS / Pneumatic Control Systems |
| Supply Pressure |
20–100 psig (1.4–6.9 bar) |
| Output Range |
0–100% proportional output |
| Flow Capacity |
>5 Cv (typical) |
| Temperature Range |
−40°C to +85°C |
| Operation Type |
Single‑acting, direct acting |
Application Scenarios
-
Pneumatic valve actuation in refining, chemical, and power industries
-
Signal amplification for FIELDVUE DVC6000 and similar valve controllers
-
Pressure modulation in high‑precision control loops
-
Fast‑response pneumatic systems requiring low air consumption
-
Harsh‑environment installations with wide temperature variations
FAQ
Q: Is the 38B5786X132 compatible with FIELDVUE DVC6000 controllers? A: Yes. It is commonly used as a relay accessory for DVC6000‑series digital valve controllers.
Q: What type of operation does this relay support? A: It is a single‑acting, direct‑acting pneumatic relay.
Q: Can it be used in low‑temperature outdoor installations? A: Yes. Its operating range down to −40°C makes it suitable for cold‑climate applications.
