In 1966, Gammon Technical Products introduced the Gammon Gauge, which quickly became the world’s #1 aviation fuel filter differential pressure gauge. In 2017, we are pleased to introduce the new, patented, smaller gauge, made to the same unparalleled quality standards.

Calibration is simple and does not require a gauge laboratory. Use GTP-2305 or any three-way valve. Our test procedure is accepted by the USAF, Army, Navy, and all major oil companies and airlines in the world as all you need to do to check the accuracy of the Gammon type DP indicator.

This mounting kit allows the Mini Gammon Gauge to be installed on either Velcon VF-61 or Facet VF-22, if pre-drilled and tapped.

If differential pressure suddenly increases or a facility is operated without personnel monitoring the differential pressure, filter element failure can occur. This new switch is unique. It adds differential pressure control at a low cost using a non-powered proximity switch. This simple double-sealed switch is ideal for use in PLC (miniature computer) and relay controlled systems. The connection box is rated NEMA4X.

Control operations are also available if you don’t plan to use an external control. We have weather-tight and explosion-proof versions.

We strongly recommend a three-way test valve for properly testing the Mini Gammon Gauge and Proximity Switch and/or system.

Any Mini Gammon Gauge can be converted to include the new proximity switch.

Note: To meet IATA JIG Bulletin 58, order the “BKS” option for key switch reset and test functions. The ATA-103 does not require this. For vehicle mounting, we recommend the weather-tight housing.

Example:

GTP-9980B-P-RH-12-B-0 is a differential pressure gauge with a normally closed switch as follows: mini gauge with test valve, 30psi scale, switch on right side, 12 VDC, enclosure is weather tight which includes light and push to test feature, no solenoid valve, and low temperature o-rings.

GTP-9980B-P-RH-12-BKS-0 is the same as above except the enclosure has two key lock switches for test and reset as per IATA JIG Bulletin 58.

Notes:

1. GTP-9980 has a normally open switch. The switch closes upon high differential pressure. If the cable to the controller is cut, high differential would never be detected.
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2. GTP-9980B has a normally closed switch. The switch opens upon high differential pressure. If the cable to the controller is cut, the system would go into alarm notifying the operator that something is wrong with the system.
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3. If a system is purchased without the controller (no enclosure), both types of switches are still available. When a complete system is ordered with an enclosure, it is our policy to provide a GTP-9980B fail safe system unless otherwise requested. The difference is in the internal wiring and components in the controller.
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GTP-9363-25A
spout storage holder

JM-9647
SkyHawk recirculation adapter

In the past, recirculation of your overwing nozzles required climbing on top of the truck. Aside from the potential for the operator falling, you can also damage the nozzle by dropping it, and in addition, splashing fuel into the tank is a static fire hazard.

The SkyHawk Recirculation Adapter (patent pending) solves this problem. Simply disconnect the standard spout and connect the JM-9647 adapter to the SkyHawk nozzle. Then connect it directly to the bottom load adapter on the truck.

Squeeze the trigger and recirculate at up to 100 gpm. The only downside is that upon disconnection, you need to catch about 3 oz of fuel from the adapter. Dual interlocks help prevent accidental disconnection.

Replacing your bottom load dust cap? We include an inlet dust cap and lanyards so you can replace the existing (or missing) bottom load dust cap with the SkyHawk Recirculation Adapter, making it a high quality solid aluminum dust cap as well as a recirculation adapter!

Uses a genuine Meggitt (Whittaker) F117 nose seal for excellent sealing integrity. (P/N 2713509)

Constructed of 100% aviation grade aluminum with S/S trim and, of course, manufactured by GTP in the USA.

The hydraulic cylinder moves based on the differential pressure sensed across the filter. When differential pressure exceeds the set point, the cylinder closes a toggle valve, stopping flow to a hydraulic or pneumatic deadman or stopping flow to a pilot valve.

Connects to the existing differential pressure gauge lines and existing hydraulic deadman circuit.

No power needed, 2 way hydraulic and 3-way compressed air versions available.

Adjustable set point. It can be simply tested using a 3-way valve (GTP-2305V) or better yet, connect directly to Gammon Gauge with a Push Button Tester. (Special lower flange on Gammon Gauge needed).

Lockable cover, simple, heavy duty design.

Aluminum and Stainless Steel construction.

The problem in running the MiniMonitor® (a.k.a. “Millipore” TM Millipore Corp.) membrane test for particulate/dirt detection in Jet Fuel is the bucket. Many years ago, the ASTM reduced the problem by changing the sample volume from 3 gallons to just 1, but the hassle of having to deal with buckets of fuel remained – UNTIL NOW.

The Closed Loop MiniMonitor® eliminates the bucket. It reduces spills, waste and personnel exposure by keeping the fuel completely inside the fuel system itself. All the test fuel is recoverable. On a hydrant cart, it can be directed to a recovery tank and on a truck or in a fuel tank system, it can be directed back to storage.

Trays and testers sold separately, mount one tray on each truck and at the fuel farm, buy just one (or two if needed) Closed Loop MiniMonitor®.

Simply put the Plastic Monitor into the Closed Loop MiniMonitor® and then:

In addition to the obvious savings over disposing of test fuel and preventing spills, this approach allows you to run tests so quickly and easily that the results have much more meaning that tests run minutes or even hours apart, in which you have to handle buckets of fuel.

QUALITY – Made in America, all 300 series S/S except the meter body (Brass body, Aluminum internal working parts) and monitor holder (Aluminum). The highest quality components available are used.

The simplest form of static cable reel is the manual rewind design. This simple reel incorporates all the features you want – and need. Can be mounted on a horizontal or vertical surface.

As described in ASTM Method D5452, the support stand is designed to hold the container that was used to collect the jet fuel sample in the field. There is no need to transfer the sample from the collection container to another container, thereby eliminating possible contamination from the second container.

Using a flexible dispensing tube assembly that fits the thread of the port in the top of the sample container, the operator closes the tube with the clip to prevent the release of fuel when the container is being turned upside-down to place it on the support stand upper shelf. The tube is then positioned in the filter tunnel before releasing it. This allows fuel to fill the funnel but it will not overflow because air must return to the container through the same tube. The filter funnel remains full in the same way that a bird feeder operates because the lower end of the tube is below the fuel surface in the funnel.

Vacuum in the collection flask draws fuel through the membrane filter desk that is positioned at the base of the filter funnel. Hands-free operation is assured. The operator is no longer required to hold the container as fuel is poured into the filter funnel. The potential for spillage is virtually eliminated.

This type of 1-liter dispenser is specified in various ASTM test methods such as D-2276 and D-5452 which are used to determine the weight of contaminants that are in fuel samples.

One dispenser is recommended for isopropyl alcohol to flush particles off of laboratory apparatus before it is used to insure that those particles are not included as contamination in the fuel sample.

A second dispenser is used for petroleum spirit (either) to flush residual particles out of the sample container and off of the funnel that was used to deliver the fuel sample from its container onto the filter membrane after the container contents have been passed through it.

Both dispensers are equipped with filter housings to remove particles from the isopropyl alcohol and from the petroleum spirit. A packet containing 10 of 0.4533 membranes (25 mm diameter) are included with each dispenser. Replacement membranes are available in a packet of ten (order GTP-9582).

The squeeze bulb develops pressure in the 1 liter flask, forcing fluid into the tubing and through the filter membrane. Gammon Technical Products manufactures the aluminum filter housing and membrane support using reagent resistant materials.