UPT3-30U ALCO

Overview

The UPT3-30U is a pressure transducer from ALCO Controls (Emerson), part of the PT3 pressure transmitter series widely used across HVAC and refrigeration systems. It converts a system pressure – typically read to around 30 bar on this variant – into a proportional electrical output signal for use by a controller, BMS, or local display.

Seven Star LLC supplies the UPT3-30U ALCO pressure transducer across Oman and the GCC for refrigeration, air conditioning, and fluid control systems that specify ALCO/Emerson pressure transmitters as part of an established equipment standard.

Operating Principle

Inside the transducer, a pressure-sensitive element deflects in proportion to the applied system pressure, and this mechanical deflection is converted into an electrical signal – the PT3 series is available with voltage output configurations suited to direct connection to standard HVAC and refrigeration controllers without additional signal conditioning.

Because the sensing element responds continuously and linearly to pressure, the transducer provides real-time pressure feedback for compressor protection, condenser fan control, and other pressure-dependent control loops common in refrigeration and air conditioning system design.

Engineering Design of the UPT3-30U

The transducer is built with a compact, rugged housing suited to installation in tight equipment spaces, with construction intended to resist the vibration and temperature cycling typical of compressor and condensing unit environments over a long service life.

As part of the established PT3 product family from ALCO/Emerson, the UPT3-30U is designed for straightforward compatibility with standard HVAC control architectures, making it a like-for-like replacement option for existing installations already standardized on this transducer family.

Key Features

• Pressure range suited to standard refrigeration and air conditioning circuits (approximately 30 bar)
• Proportional electrical output signal for direct controller connection
• Compact, rugged housing for tight equipment spaces
• Built to withstand vibration and temperature cycling in compressor environments
• Part of the established ALCO/Emerson PT3 transducer family
• Quick response for real-time pressure feedback
• Minimal maintenance requirement
• Straightforward like-for-like replacement for existing ALCO installations

Industrial Applications

The UPT3-30U ALCO pressure transducer is used in refrigeration plants, commercial and industrial air conditioning systems, and fluid control applications across Muscat, Sohar, Salalah, and the wider GCC, wherever an installation is standardized on ALCO/Emerson pressure transducers for compressor and system pressure monitoring.

Seven Star LLC supplies the UPT3-30U as a replacement or new-installation component for HVAC and refrigeration contractors and facility teams working with ALCO/Emerson-specified equipment standards.

Technical Specifications

Why Choose Seven Star LLC for the ALCO UPT3-30U

Because the PT3 family covers several pressure ranges under similar-looking part numbers, we confirm the exact range code, this variant reading to roughly 30 bar, against your compressor or system’s actual operating pressure before an order ships, since a transducer rated for the wrong pressure range will either saturate at the very top of its scale or provide genuinely poor resolution across your actual day-to-day operating band. We also verify the output voltage configuration matches your controller or BMS input specification, avoiding a signal mismatch that would otherwise require an additional signal-conditioning module to correct after the fact.

For refrigeration contractors maintaining multiple systems already standardized on ALCO/Emerson pressure transducers, we help plan spares coverage that matches the specific range variants actually installed across a customer’s site portfolio, rather than a generic assortment of spares that may not actually reflect the real mix of high-side and low-side pressure points genuinely in use across the site. Where a facility is retrofitting or expanding its pressure monitoring, we are always glad to review the existing PT3 family transducer inventory in detail before recommending any additional units.

Supporting Compressor Protection Reliability

A pressure transducer feeding a compressor protection loop, whether for high-pressure cutout or condenser fan staging, is a genuinely safety-relevant component even on an otherwise routine commercial refrigeration system, since an unnoticed transducer drift or failure can allow a compressor to operate outside its intended pressure envelope for an extended period of time before the underlying fault is ever discovered by maintenance staff. We help customers build periodic verification into their maintenance routine, cross-checking the transducer’s output against a calibrated gauge reading at scheduled intervals so a gradual drift is caught early and corrected before it ever becomes an operational problem, rather than being discovered only after an unplanned compressor failure has already occurred.

Sourcing Genuine ALCO/Emerson Pressure Transducers in Oman and the GCC

Seven Star LLC maintains sourcing relationships with Emerson to support fast, reliable access to genuine UPT3-30U units and the wider PT3 family for HVAC and refrigeration customers across Oman and the GCC, rather than customers having to accept a generic aftermarket substitute of uncertain, unverified calibration accuracy. We provide datasheets and wiring guidance on request, helping contractors complete an installation or replacement correctly and confidently on the first site visit, without a follow-up trip to correct a wiring or range mismatch.

Request a Quote for UPT3-30U ALCO

Contact Seven Star LLC to order a UPT3-30U ALCO pressure transducer for your HVAC or refrigeration system in Oman and the GCC.

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