Gas Meter Repair & Calibration

At Utilities and Industries, we specialize in the comprehensive repair and calibration of gas meters, ensuring precision and reliability for our clients. Our expert team is equipped to handle three types of gas meters: small diaphragm, large diaphragm, and rotary gas meters.

By entrusting your gas meter repair and calibration needs to us, you can be confident in receiving

top-quality service that adheres to the highest industry standards. Our commitment to excellence ensures that your meters will provide reliable and accurate readings, enhancing the efficiency and safety of your gas utility operations.

Residential and Commercial Diaphragm Meters

Complete repair and calibration services for diaphragm-style meters.

We provide meticulous repair services for both residential and commercial diaphragm meters. Our process begins with in-testing each meter using our state-of-the-art NIST (National Institute of Standards and Technology) certified provers. Based on the in-test results, we classify the repairs needed into three distinct categories, ensuring each meter receives the precise level of attention required for optimal performance.

Class A - Basic Meter Rebuild

Ideal for meters needing light cleaning, testing, and recalibration.

Our Class “A” Repair is a complete meter restoration service that returns your equipment to like-new condition, inside and out. Every meter is thoroughly tested, cleaned, calibrated, and refinished to ensure long-term accuracy, reliability, and appearance.

What’s Included:

Comprehensive In-Test: We begin by testing your meter to assess current performance and identify any issues before starting the repair process.
Cleaning and Surface Preparation: The meter body is thoroughly cleaned to remove dirt, grease, and buildup, then blasted and sanded to prepare it for painting and protect against corrosion.
Spud Inspection and Cleaning: Inlet and outlet spuds are inspected and cleaned to ensure proper airflow and sealing.
Internal Inspection: The hand hole cover is removed so the tangent and armature can be checked for wear, debris, or damage.
Slow Fire Test: The meter is tested at a rate of ½ cubic feet per hour (cfh) of air, ensuring it registers at least 80% of the actual flow rate.
New Hand Hole Gasket Installation: A new hand hole cover gasket is installed to ensure a tight, reliable seal.
Fastener Check: All external fasteners are tightened and secured to maintain proper assembly and performance.
Index and Cover Replacement: The index and standard Lexan index cover are replaced as needed (index replacement billed separately; ERT covers must be supplied by the customer).
Calibration and Out-Test: After adjustments, the meter is proven for accuracy at multiple flow rates (“Check Rate” and “Open Rate”) to meet or exceed customer specifications.
Leak Test: The meter is pressure-tested at its rated capacity to confirm there are no leaks.
Refinishing and Painting: The meter is painted, restoring a like-new appearance and protecting against future wear.

Additional Parts Included:
Hand hole gasket and cover screws, standard Lexan index cover and screws (if replacement is required), and a snap seal kit.

Class B - Standard Meter Rebuild

Our most popular service, combining full cleaning, calibration, and internal maintenance for dependable accuracy.

Our Class “B” Repair includes everything in the Class “A” Repair, along with additional inspection, disassembly, and internal servicing. It’s the perfect option for meters that need more than standard cleaning and testing to bring them back to peak performance.

What’s Included (in addition to Class A Repair):

Component Disassembly and Cleaning: The top of the meter is removed, and internal components above the table are disassembled and hand-cleaned for a thorough inspection.
Diaphragm and Case Leak Testing: Both the diaphragm and meter case are tested to identify and correct any leaks that may affect performance or accuracy.
Valve Refacing: Valve seats and covers are carefully refaced to ensure proper sealing and smooth performance.
Index Drive Stuffing Box Test: The index drive stuffing box is tested for leaks to confirm proper sealing and operation.
Component Replacement: Worn or defective parts are replaced as necessary (replacement parts billed separately).
New Top Cover Gasket Installation: A new top cover gasket is installed to restore a proper seal and maintain internal pressure integrity.

Additional Parts Included:
Top cover gasket, short flag arm, flag arm rivets, flag arm sleeves, and axle box seals.

Class C - Complete Meter Rebuild

Full disassembly, inspection, and replacement for meters requiring complete restoration.

Our Class C Repair includes everything in the Class B Repair, plus full internal inspection and component replacement where needed. This level of service is ideal for meters requiring a complete rebuild to restore full functionality and ensure long-term reliability.

What’s Included (in addition to Class A & B Repair):

Side Cover Removal and Replacement: Side covers are removed for full internal access and replaced if damaged (replacement parts billed separately).
Internal Inspection: Diaphragms and internal components are carefully inspected for wear or damage to verify integrity and performance.
Internal Component Replacement: Worn or defective parts are replaced as necessary (replacement parts billed separately).
Side Cover Gasket Replacement: New side cover gaskets are installed to ensure a secure, leak-free seal.

Additional Parts Included:
Side cover gaskets

Meter Repair Add-On Services

Optional upgrades available during the meter rebuild process.

These add-on options can be included during your meter rebuild or repair process at your request.

Each service enhances functionality, accuracy, or usability, and include additional charges based on

the scope of work.

Add-Ons Available:

Temperature Compensation (TC) Conversion: Install a new temperature compensation tangent assembly to enable accurate measurement adjustments based on temperature changes.
Meter Rebadging: Replace the existing identification badge with a new one according to customer specifications.
AMR Device Installation: Install and program a specified or compatible AMR remote read device during the repair process. (Devices must be supplied by the customer)
Index Replacement: Install a new standard or temperature compensated index as requested.

Rotary Gas Meters

Comprehensive repair, testing, and rebuilding services for rotary gas meters.

Our Rotary Meter Repair service provides a complete rebuild designed to restore performance, accuracy, and dependability. Each meter is fully disassembled, cleaned, fitted with new precision components, and tested to meet exact calibration standards. This service ensures your rotary meters continue to perform with the accuracy and reliability required for critical measurement applications.

Class B - Standard Rotary Rebuild

Ideal for meters needing light cleaning, testing, and recalibration.

Our Class B Repair is a complete rotary meter rebuild that includes thorough cleaning, inspection, and component replacement to restore accurate performance. Each meter is fully disassembled,

cleaned, fitted with new precision bearings and seals, and tested to ensure dependable

operation and accuracy.

What’s Included:

Comprehensive In-Test: We begin by testing your meter to assess current performance and identify any issues before starting the repair process.
Cleaning and Surface Preparation: The meter body is thoroughly cleaned to remove dirt, grease, and buildup, then blasted and sanded to prepare it for painting and protect against corrosion.
Complete Disassembly and Cleaning: Disassemble the meter and clean all internal components as required.
Bearing Replacement: Install four new precision main-shaft bearings to ensure smooth rotation and long-term reliability.
Seal Replacement: Replace head-plate and end-cover O-rings as needed to maintain a proper seal.
Hardware Replacement: Replace miscellaneous screws, washers, pipe plugs, and shims as required (replacement parts billed separately).
Instrument Drive Inspection: Check the instrument drive and drive dog (if applicable) and repair as needed (replacement parts billed separately).
Prover Testing: Perform a prover test at a minimum of two flow rates (“Out-Test”) to verify accuracy and performance.
Calibration and Out-Test: After adjustments, the meter is proven for accuracy at multiple flow rates (“Check Rate” and “Open Rate”) to meet or exceed customer specifications.
Refinishing and Painting: The meter is painted, restoring a like-new appearance and protecting against future wear.

Additional Parts Included:
Four main-shaft bearings, head-plate and temperature-probe O-rings, snap rings, and desiccant pack.

Optional Component Upgrades:

Additional components such as impellers, timing gears, and index/GRU assemblies can be replaced at the customer’s request and expense.