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.

Small and Large Diaphragm Meters

We provide meticulous repair services for both small and large 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.

In-Test

Prior to any cleaning or other work on a meter, but after the meter has been properly brought to proving area temperature, all meters shall be in-tested.

This in-test shall consist of the following:

Check Rate Test @ 20% of the badged capacity at 1/2” W.C.
Open Rate Test @ 100% of the badged capacity at 1/2” W.C.
Differential Pressure across the meter shall be measured during the Check Rate Test with a magnahelic differential pressure gauge (or equivalent). The maximum permissible differential pressure will be as specified by the meter manufacturer.

In-Test results shall be recorded and reported as required by contract specifications.

Class “A” Repair

In-test Meter
Clean outside of meter
Inspect and clean spuds
Remove hand hole cover and inspect tangent and armature
Replace hand hole cover gasket
Blast and sand meter body for painting
Slow Fire Test at a rate of 1/2 cfh of air. (Meter to register a minimum of 80 percent of actual volume passed).
Adjust and Prove meter accuracy to be with in Customer Specifications then, “Out- Test” at a minimum of two (2) flow rates - “Check Rate” and “Open Rate” (same as in-test)
Tighten all external fasteners
Leak test at badged pressure rating
Replace index & standard index cover as required (Index replaced at customer expense) ( ERT covers must be supplied by the customer)
Paint meter (Meter to be in like new condition)
Parts Included: Hand hole gasket and cover screws, standard Lexan index cover and screws, snap seal kit

Class “B” Repair

All operations included in Class “A” Repair plus:
Remove top, disassemble components above table and hand clean
Test diaphragm and case for leaks
Reface valves and valve seats
Test index drive stuffing box for leaks
Replace worn or defective parts as necessary (customer expense)
Replace top cover gasket
Additional parts included: Top cover gasket, short flag arm, flag arm rivets, flag arm sleeves, axle box seals

Class “C” Repair

All operations included in Class “B” Repair plus:
Remove side covers and replace if damaged (customer expense)
Inspect diaphragms and parts
Replace side cover gaskets
Additional parts included: Side cover gaskets

Additional Services Available:

Temperature Compensation “TC” Conversion

Install new temperature compensation tangent assembly

Rebadge Meter

Replace meter identification badge according to customer specification

Remote Read AMR Device installation

Install a specified, or appropriate AMR remote read device, with device supplied by Customer.

Program remote read AMR device as required, with device supplied by Customer.

Index

Install new index (standard or pressure compensated)

Rotary Gas Meters

Our rotary gas meter service is thorough and systematic. Each meter undergoes a detailed process to guarantee its accuracy and durability.

In-Test

Prior to any cleaning or other work on a meter, but after the meter has been properly brought to proving area temperature, all meters shall be in-tested. This in-test shall consist of the following:

Perform prover test “as found” at a minimum of two flow rates (20% & 100% capacity of meter)

In-Test results shall be recorded and reported as required by contract specifications.

Class “B” Repair

Clean exterior of meter
Disassemble meter and clean all parts as required
Replace four precision main shaft bearings
Replace head plate and end cover O-rings, as needed
Replace miscellaneous screws, washers, pipe plugs and shims if needed (customer expense)
Check instrument drive & drive dog if applicable, repair as necessary (customer expense)
Perform prover test at a minimum of two flow rates “Out Test”
Record and report Out-Test results as required by contract
Parts included: 4 Bearings, head plate & temperature probe O-rings, snap rings, and desiccant pack as required.
Additional parts (Impellers, timing gears, index/GRU etc…) can be replaced at customer request and expense

Additional Services Available:

Temperature Compensation “TC” Conversion

Install new temperature compensation tangent assembly

Rebadge Meter

Replace meter identification badge according to customer specification

Remote Read AMR Device installation

Install a specified, or appropriate AMR remote read device, with device supplied by Customer.

Program remote read AMR device as required, with device supplied by Customer.

Index

Install new index (standard or temperature compensated)

COLD WEATHER METER TESTING

In addition to our standard ambient temperature accuracy testing, Utilities and Industries offers specialized cold weather temperature testing that meets the requirements outlined by New York State regulations for Average Winter Temperature Testing.

This testing, as specified by New York State 16 CRR-NY 226.6, includes accurate flow rate assessments and precise calibration checks at low temperatures to ensure equipment reliability in real-world winter conditions.

Our climate-controlled cold room enables us to maintain a constant 20-degree temperature, so customers can be confident that their gas meters meet the required accuracy standards for safe, compliant operation.

For customers needing only cold-weather testing, we provide this service independently, offering a cost-effective solution that aligns with New York State compliance requirements.