Freeze Prevention for Pilot-Operated Regulators

Don’t let freezing get in the way of peak performance.

Pilot-operated regulators deliver higher accuracy and responsiveness than their direct acting counterparts. However, these benefits are negated or worse when freezing occurs. Partner with Catco to prevent freezing problems before they start.


Instrument Gas Heaters

Most often, the performance problem lies in the pilot. Catco Instrument Gas Heaters are protecting tens of thousands of pilot-operated regulators like Mooney Flowgrid, Fisher EZR, Pietro Fiorentini Aperflux, and others. Stainless steel heat exchange tubing passes through an insulated enclosure and a catalytic heater raises the temperature of the gas or air flowing through it.





2600 Series Single Coil Pilot Preheaters


Single or Dual Heat Exchangers

Single heat exchangers heat one stream of gas, ideal for a single piece of equipment. The dual heat exchanger is a popular choice for worker/monitor setups and or any time two pieces of equipment are located near one another.





2600 Series Dual Coil Pilot Preheaters

Instrument Gas Heater

High-Pressure Fuel Manifolds

Catco Instrument Gas Heaters offer several options for high-pressure manifolds and include both a regulator and relief valve. Stainless-steel and brass options are available from several top manufacturers.





5000 Series Single Coil Pilot Preheaters


Temperature Control

Only Catco offers the Steady Heat Controller. A hot and cold stream of gas are combined to provide a steady supply of heated gas that stays at a constant 135-140° F regardless of your operating conditions. Traditional thermostats are also available.





5000 Series Double Coil Pilot Preheaters


2600 or 5000 Series

The Catco 2600 Series has been the industry standard for decades and continues to work brilliantly in most conditions. The 5000 Series delivers more BTUs to keep you operational in especially harsh conditions and demanding applications.


Pipeline Packs

In some cases, usually where heating needs are minimal, providing some heat to the gas stream that is flowing through the pilot-operated regulator will prevent freezing issues and keep the regulator operating as intended. Catco Pipeline Packs mount onto the pipe upstream of your regulator, heating the gas to mitigate freezing in the valve. Pipeline Packs are easy to install to an existing length of pipe, so installation is fast and simple.






For light-duty applications. Uses one or two 6×12 catalytic heaters. Installation requires a 15″ length of pipe upstream of the regulator. 3000 or 6000 BTU/hr. Available in a variety of starting voltages. See data sheet for full specifications.






For medium-duty applications. Uses one or two 6×24 catalytic heaters. Installation requires a 27″ length of pipe upstream of the regulator. 6000 or 12,000 BTU/hr. Available in a variety of starting voltages. See data sheet for full specifications.






For heavy-duty applications. Uses four 6×24 catalytic heaters. Installation requires a 27″ length of pipe upstream of the regulator. 24,000 BTU/hr. Available in a variety of starting voltages. Multiple units can be applied in series for higher BTU requirements. See data sheet for full specifications.


Custom Solutions


Do you have a unique installation? A setup with unusual requirements? Working in extreme conditions? Catco has protected tens of thousands of pilot-operated regulators, and sometimes the out-of-the-box solution isn’t the right fix. Catco loves working with you to design the exact right solution for your unique requirements. Whatever your situation, we are here to help.


To begin the process for a custom solution, contact us with information about your application, or give us a call at 888-436-2095.




Eliminate Downtime with Catco

As the go-to partner for energy resilience, we provide the simplest, safest way to prevent natural gas failures. Avoid costly problems such as freezing and hydrate formation by contacting us today.

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