M-Squared Products & Services, Inc Packing Leak Detector® (PLD) basic with engineered pin
M-Squared Products & Services, Inc Packing Leak Detector® (PLD) basic with engineered pin.
Products Services
Sales Sizing Installation
Maintenance Repair
Packing Leak Detector®
RCS Excaliber NA NA NA
Equipment Vibration NA NA
Sound Suppression
(silencer & mufflers)
Vapor Recovery
Catalysts & Housing NA
Catalysts Testing (AVTS)
& Washing
Air Emissions
(Air Fuel Ratio controllers)

M-Squared has interesting tools.

We spent lots of time in the gas & oil businesses (over 40+ years). In addition to logging, we knew sales, services & maintenance.

Most of the time, customers were distressed when required by their state or EPA to measure gas escaping from their compressors. There were no tools for measuring leaking gas--until now.

Over the past thirty-plus years...

We have seen operators selectively perform momentary observations, e.g., Optical Gas Imaging (OGI), on an annual or semi-annual basis for point-in-time leakage measurements. Annual or semi-annual measurements, like OGI, do not provide histological data about leak rates, that do not account for leaks that occur one hour/day/month, etc..., from that measurement point.

New or remanufactured equipment placed into service is not measured for leakage until required by current EPA guidelines (current EPA OOOOa regulations require packing changes every 26,000 hours or thirty-six months). The equipment could be leaking unabated for months without being addressed.

Hence, the need for continuous point-of-service detection monitoring to identify and measure fugitive gas leakage. Present EPA regulations does not account for unexpected leakage or hold the operator accountable for venting fugitive emissions.


A new Ariel KBBV six throw compressor was put into service and both second stage cylinders were leaking at a rate of 20+ Scfm each, measured via the Packing Leak Detector® (PLD). Without the PLD, these compressor leakages could have gone unabated for several months without resolution.

With the PLD, the operator was able to correct packing installation, emory cloth the piston rod to roughen the surface and adjust lubrication to reduce the packing gland leakage to < 1.0 Scfm.

OGI technicians...

...may miss measuring existing leaks, or not measure them at all, because of the compressor’s operating state. Where operators’ shutdown compressors without blowing them down (e.g., storage and transportation compressor sites), the packing gland seal is no longer in dynamic seal mode, and now is referred to as “static mode.” In static mode, the packing gland assembly no longer has lubrication or piston rod movement. In this mode, the packing gland cannot prevent trapped pressurized gas in the piston area from leaking down the piston rod, through the packing gland and out the packing vent.


A storage or pipeline transportation compressor may be shutdown, fully loaded. The dynamics packing gland seal is now in static mode and incapable of retaining trapped gas. OGI technicians, typically, do not measure shutdown units, thereby miss measuring fugitive emissions escaping from non-functioning seals. Based on measured effluent from existing compressors in a loaded shutdown state, leakage rates, as measured by the Packing Leak Detector (PLD), are typically 3-5 times more than of when the compressor is operating.

Packing Leak Detectors® (PLD) are cheap.

Our customers were complaining that EPA and state governments were asking them to measure packing gland leaks. We invented PLDs to help customers remedy their reciprocating compressors, to help them draw awareness of the methane gas that was costing them money--to have them recycle those fugitives emissions.

As you read our Packing Leak Detectors page, you might wonder why someone else didn't think of this long ago.

M-Squared Products & Services Inc. That's who we are.

Off shore oil platform image2
M-Squared works in land- and offshore locations.