About Sandra Gammon

This author has not yet filled in any details.
So far Sandra Gammon has created 93 blog entries.

Bulletin 59: Floating Suction Assemblies

  • Insures that the cleanest fuel in the tank leaves first

  • Swivel seal design insures against hang up

  • Inlet and float designed to avoid vortex induced air

  • Heli-Arc welded aluminum floats tested before shipment

  • Optional stainless steel floats available

  • Optional foam filling available

  • Double row of ball-bearing swivels

  • All bolts and fasteners are stainless steel

NOTE: Floating suctions cannot be ordered online. Please contact us to get a quote or place an order.

Installation

CAUTION: When installing a floating suction, do not enter the tank until all fuel vapors are cleared.

HORIZONTAL TANKS
In most cases it will be necessary to remove the float assembly before installation is attempted. This simply requires removal of one stainless steel cotter pin. If an attempt is going to be made to install a floating suction without someone working inside, we recommend Style 5 with the riser flange bolted to a spool piece welded into the cover of the manway. Style 6 is another option. Assembly can be inserted through the manway until the cover comes to rest on the top of the manway. Care must be taken to insure that the swivel turns in the right direction so that the float is located above the suction arm. Also, a special provision must be made for attaching the test cable by threading it through a special port in the manway cover. The minimum manway inside diameter to permit installation of Style 5 without removing the float is shown in the following chart for each size:

Pipeway Size Manway Diameter
2″ 17″
3″ 19″
4″ 21″
6″ 25″

This chart does not apply to Styles 1, 2, or 3 because the limiting factor on being able to insert these long suction arms is whether or not the arm will contact the bottom of the tank before it can pass through the manway. We have developed simple charts for each size of floating suction for a wide range of tank diameters, manway diameters, and manway lengths so that we can quickly determine the maximum suction arm length that can be inserted in your tank. This is why you must give us the dimensions of your tank when you place an order. It should be understood that it will be necessary in most instances to remove the float and swivel before installation if Styles 1, 2, or 3 are selected.

SUCTION ARM LENGTH for our standard designs of Styles 1, 2, and 3H is based on the assumption that the fitting in your tank is positioned so that the arm will operate freely without contacting the end of the tank. The customer is expected to inform us if he wants a non-standard suction arm length. We do not recommend allowing the arm to rise to an angle greater than 45°.

TEST CABLE INSTALLATION should be arranged so that the cable will not be bent at a sharp angle when the yardman pulls upward. Ideally, the opening through which the cable is installed should be as close as possible to the point where the center of the float contacts the top of the tank (see typical arrangement for Style 4). The cable may be attached to the lower face of a pipe cap that will close the top of the access port.

All connection flanges for all styles are 150# ANSI-RF unless otherwise specified.

VERTICAL TANKS
Floating suctions for vertical tanks must be disassembled during installation. The purchase order must specify the manway diameter so that a float can be selected that will pass through. If the arm length/diameter ratio is very great, we add intermediate legs as necessary, especially if the outlet flange is lower than the inlet, causing the arm to remain full when the tank is empty.

If the height of the tank is greater than 75% of the diameter, the arm will rise to such a steep angle that it may hang up. One option is for us to add a restraining cable and let the fuel rise as far above the float as necessary (see Style 3VR). The other option is to add swivel joints and use multiple arms (see style 3VA); we have had to use as many as four in very tall, small-diameter tanks. Special provisions are made to guide the float and arms.

NOTE: We manufacture floating suctions for tanks having floating roofs or pans, but only if we are given drawings of the pan construction so that we can design a track for the rollers.

Bulletin 59: Floating Suction Assemblies2024-12-06T16:42:18+00:00

Bulletin 55: Static Bonding/Grounding Equipment

New Manual Reel

This is the simplest form of static bonding cable reel. Lightweight and durable. Adjustable tension. Horizontal or vertical mount. Right or left hand rewind.

See Bulletin 163

Ametek Cable Reel

The best reel we have ever found. No whipping, no tangles, positively controlled speed with three centrifugal speed brakes. Small, lightweight, and tough.

See Bulletin 54

Ametek Rota-Reel

The Rota-Reel static grounding reel offers a compact and lightweight solution for your grounding needs. Features include automatic retraction, pawl and ratchet locking mechanism, and weather-resistant red powder coat finish. Includes 50’ of uncoated 0.093” diameter galvanized steel cable and a 100 amp copper clip.

ML-700-50R

Static Bonding/Grounding Cable

We offer a wide range of grounding cable. Our cable is made with 7 x 7 galvanized steel or stainless steel wire. It is coated with a tough vinyl or even tougher compounded polyester coating. It is available in clear, high visibility orange, and kink-resistant bright yellow. It can be bought by the foot or on 1,000’ spools.

See Bulletin 98

The Gammon Gator Clamp

At Gammon Technical Products, we have sold grounding clamps and millions of feet of cable over the decades, but we have never made our own unique clamp – until now. The Gammon Gator is designed to surpass all previous clamp designs in every way. It is easier to use, inexpensive, and 100% made in the USA.

  • Aluminum magnesium alloy – light, durable, highly conductive, and corrosion resistant

  • Longer, more comfortable design is ergonomic and easy to use – yet light and inexpensive

  • All high-grade stainless/brass fasteners and spring – includes two cable connections and our unique strain-relief cable attachment design

  • Cycle tested to 100,000 cycles without measurable wear

  • Salt sprays and salt water erosion tested and passed to Mil Spec

  • Drag and run-over tested without breakage or failure

  • Less than 1/2 lb. (0.2kg) & 6” (15.25cm) long

GTP-9654
standard Gator clamp
NSN 5999-01-692-6284

GTP-9654-FP
Gator clamp with integral folding grounding plug

GTP-1101: The Super Clamp

Do not go through the “motions” of grounding. Be sure the aircraft and refueler are really bonded together. This tough clamp conforms to MIL-C-83413/7.

  • Torsion spring provides 30 lbs. jaw pressure on .500” diameter rod; 40 lbs. jaw pressure on .625” diameter rod.

  • When clamped on grounding post, less than 5 ohms resistance from posts to ends of handles.

  • Die cast aluminum alloy assures maximum strength and conductivity.

  • Length: 4.1 inches

  • Weight: 4 ounces

Bonding/Grounding Plug

Includes hex end cap to secure cable

GTP-1097S-1
passivated stainless steel

GTP-1097B
solid brass

GTP-9633-101 Drive-away Grounding Socket Kit

Save money – Less damage

Mount this stainless steel socket to your refueler vehicle with the included attachment kit and use a short grounding cable with a grounding plug on the fixed loading rack. If the driver pulls away without disconnecting – no problem! The flexible grounding socket mounts with a single screw and swings in line with the grounding cable. Eliminate the need for a grounding reel on the loading rack or using the grounding reel on the truck, resulting in the cable wrapped around the rear wheels. Used with bonding/grounding plug (not included).

Bonding/Grounding Clips

Heavy-duty Mueller type clips. 1 dozen minimum order.

Solid copper clips
2 1/2″, 3″, 4″, 6″

Zinc-plated steel clips
4″, 6″

Overwing Bonding/Grounding Assemblies

NFPA requirement, you must bond before removing cap on aircraft

GTP-1094
cable, plug, and clip assembly – 48″

GTP-1095
cable and clip assembly – 90″

Rubber Stop Ball

GTP-1486

For grounding reel cables, these 1 1/4” round stop balls are tough and long lasting.

Cable Stop

GTP-1487

Bulletin 55: Static Bonding/Grounding Equipment2024-12-06T16:42:10+00:00

Bulletin 54: Ametek Hunter Spring Static Bonding Reel

Features

  • For heavy-duty applications

  • Automatic retraction

  • Weather-resistant finish

  • 100 amp alligator clamp termination

Static Bonding Reels provide the automatic retraction and compact storage of 50, 75, and 100 foot cable and clamp assemblies. Designed to function under extreme environmental conditions, the 50 and 75 foot cable length models meet USAF MIL-R-83232B and U.S. Government specification A-A-50696.

A patented latching mechanism holds the cable at any desired length. A slight pull on the cable releases the mechanism causing retraction. Retraction need not be attended. The retraction speed is automatically governed by a special brake assembly designed to limit the retraction speed from two to seven feet per second. Steel components and a cantilever-type frame, which support the reel assembly, are designed to function under the most adverse conditions. Baked-on MIL spec red finish and gasketed drum construction protect operating parts from corrosion. Bearing surfaces are permanently lubricated.

Specifications

CABLE LENGTH

50, 75, or 100 feet

CABLE DIAMETER

1/8″, 3/16″, or 5/32″

CABLE END

Grounding plug, clip, super clamp, or Gator clamp

ELECTRICAL RESISTANCE

10 ohms maximum between clamp and mounting base

LIFE CYCLE

tested to 5,000 cycles

CABLE RETRACTION SPEED

2-7 ft/sec

FINISH

conforms to MIL-Std 808, red paint, Film Designation DG

PACKAGING

conforms to MIL-P 726, Unit Pack – Level A, Shipping Pack – Level B

OPERATING TEMPERATURE

-65° to 125° F

STORAGE TEMPERATURE

-80° to 160° F

Dimensions

How to Order

Bulletin 54: Ametek Hunter Spring Static Bonding Reel2024-12-06T16:42:02+00:00

Bulletin 52: Filter Separator Accessories

Air Eliminators

There is no question in our opinion: these are the most reliable air eliminators money can buy. Stainless steel float and mechanism, Viton A seal, 3/4” NPT in and out. (1/2” on special order), 1/16” air outlet orifice operates up to 208 psi. Air release rate at 150 psi is 6.04 cfm. Larger orifice sizes: 3 available on special order but operating pressures decrease. Structural pressure rating is 250 psi on all models. Repairable replacement parts are available.

GTP-21A
aluminum body air eliminator

GTP-21C
cast iron body air eliminator

STAINLESS STEEL MODEL – High Air Flow
Non-repairable. At 150 psi, releases air at 9.44 cfm. Maximum operation pressure 400 psi. Structural pressure rating 500 psi.

GTP-11-400
stainless steel air eliminator

Socket Adapter for Coalescer Elements

Designed to fit threaded bottom coalescer elements. The socket is 1/2” square drive for torque wrenches and extensions. This adapter is needed to attach a torque wrench to coalescer elements.

GTP-1224
socket adapter for Parker/Velcon

GTP-1224F
socket adapter for Facet

Check Valves

Prevents drain-back

To be installed above the air eliminator

Viton seal – all stainless steel

Designed to fit threaded bottom coalescer elements. The socket is 1/2” square drive for torque wrenches and extensions. This adapter is needed to attach a torque wrench to coalescer elements.

GTP-8982
1/2″ NPT or 1/2″ BSP

GTP-2916-10
3/4″ NPT

GTP-2916-11
3/4″ BSP

GTP-2916-21
3/4″ NPT x 3/4″ BSP

Pressure Relief Valves

Relieves excess pressure caused by thermal expansion of the fuel. Be sure to specify relief pressure setting.

Note: 150psi is our standard pressure relief valve setting. Other settings are special order and are non-refundable.

GTP-803S
Carbon steel
Available settings from 15 to 3500 psi
3/4” male x 1” female
Also available in stainless steel

GTP-803B-1
Bronze
Available settings from 5 to 300 psi, non-certified
3/4” male x 3/4” female

GTP-1357V
Bronze
Available settings from 75 to 200 psi (150psi standard), non-certified
3/4” male x 3/4” female

Bulletin 52: Filter Separator Accessories2024-12-06T16:41:54+00:00

Bulletin 49: Serviceman’s Portable Pump

Serviceman’s Portable Pump

Technical Data

  • Positive displacement pump

  • Suitable for gasoline, diesel, and jet fuels

  • 12 ft. cable – shielded clips

  • 45 lbs weight

  • 30 minutes on, 30 minutes off duty cycle

  • Explosion-proof motor – Class 1, Division 1

  • 3/4″ x 12′ suction hose

  • 3/4″ x 12′ discharge hose

  • 14 gpm flow rate

How to Order

GTP-1288-12
12 volt DC motor

GTP-1288-24
24 volt DC motor

GTP-1288-24
24 volt DC motor

Options

GTP-1289
suction strainer

Special length hose

Quick disconnect hose fittings

Instructions

Connect the suction and discharge hoses as desired. Attach cable clips to battery. Turn on the switch. Open filter vent.

Note: The DC pump has a permanent magnet motor and must be connected correctly or it will run backwards.

Bulletin 49: Serviceman’s Portable Pump2024-12-05T20:39:43+00:00

Bulletin 46: Pressure and Sampling Adapters

Pressure and Sampling Adapters

The versatile Jet Test QD® has many uses other than those shown on Bulletin 14. This permanently installed, impact resistant, quick disconnect is unique because only its stainless steel hex is exposed.

Standard Jet Test QD®s require the long actuator. Refueling nozzles such as those made by Avery Hardoll (now known as Meggitt) use a shorter actuator because the long version would interfere with the nozzle strainer. Short versions have suffix S or AH in the model number.

See below for components and variations of these two assemblies.

New and Improved Pressure Gauge

GTP-1174

  • 0-100 psi

  • Liquid filled

  • Center back mount

  • 1/8″ NPT male

Selecting the Correct Actuator (Connector) for GTP-423 and GTP-451 Shut-off Valves

GTP-423

(standard model) has GTP-1173 actuator for connection to GTP-235 Jet Test QD as shown above

GTP-423-1

has GTP-722-2 commercial standard actuator

GTP-423-2

has GTP-1175A short actuator for connection to AH and S Jet Test QDs

GTP-423-3

has GTP-1171D actuator for connection to Shell fittings

GTP-423-4

has GTP-1171C actuator for connection to Air NP/Thermal Controls fittings

GTP-451

(standard model) has GTP-235-2 actuator for connection to GTP-235 Jet Test QD as shown above

GTP-451-1

has HN-4 adapter and GTP-722 commercial standard actuator

GTP-451-2

has GTP-235AH actuator for connection to AH and S Jet Test QDs

GTP-451-3

has GTP-1171D actuator and RHN4-2 adapter for connection to Shell fittings

GTP-451-4

has GTP-1171C actuator and RHN4-2 adapter for connection to Air NP/Thermal Controls fittings

Gauge Connectors

GTP-1171A

Fits Flight Refueling numbers 4127335 and 4127365. This is the Shell type connector.

GTP-1171B

Fits Flight Refueling numbers 4127320 and 4127350. This is the Air BP type connector.

GTP-1171C

is the same as GTP-1171A except it does not include the gauge

GTP-1171D

is the same as GTP-1171B except it does not include the gauge

Commercial Standard Actuator

GTP-722

1/4″ NPT

GTP-722-2

1/8″ NPT

Bulletin 46: Pressure and Sampling Adapters2024-12-06T16:41:11+00:00

Bulletin 36: Viper Additive Injection Systems

Viper Additive Injection Systems

For most any additive in any fuel

Viper Additive Injectors are designed to accurately and reliably inject a wide range of additives into a flowing stream of fuel or other hydro-carbon liquid. All fluid-wetted components are 300 series stainless steel. For maximum accuracy, temperature range, and durability, we have a wide range of custom rubber seals available.

Available with or without controls, these injectors can be directly controlled by the new advanced LC, TCS, and other meter computers for simplicity and record keeping. Made in USA.

Viper Pump

The Viper pump is a simple concept. A double-acting, positive displacement, solid stainless steel piston pump, tested to provide a long life on clean additive before seal change of 30,000,000 gallons. All rubber (check valve) and PTFE (shaft and piston) seals, for reliability and accuracy. Self-cleaning check valve design, inlet strainer and main seal leakage detector. Compressed air powered, electronically controlled.

Our Heavy Duty mechanical adjuster is linear so if you change the adjuster 10%, the additive output changes 10%, unlike some competitors. Tested to -50° F. Viper pumps in service as long as 15 years have never needed adjustment, just occasionally new seals or a strainer cleaning. Checking is simple, flow volume into a test jar is the same as flow into the fuel stream.

Flow rates up to 1,200 gpm, additive rates up to 1,500 ppm. Includes a special test valve, high-visibility flow indicator, and atomizing injector nozzle.

Viper Scorpion & Scorpion Mini

The Viper Scorpion is a smaller version of the Viper. Flow rates up to 500 gpm at 100 to 1,000 ppm. Compact and less expensive, but just as accurate and reliable.

The Viper Scorpion Mini is a simplified additive injection system without mechanical adjustment. Developed for use specifically with a meter computer such as the TCS or LC system. Additive meter required.

Viper Concord

The Viper Concord was developed long ago to inject CI/LI additive for the Concord SST. Designed to accurately inject additive at as low as 20 ppm at flow rates up to 1,000 gpm, the Concord was “brought out of retirement” to join the Viper line. Interestingly, the Concord has no Piston seal, utilizing a clean “return” design to prevent leakage.

Digital Viper and Viper Eclipse Control System

The “brain” is a simple control, preset before shipment. No programming needed! The Digital Viper takes a pulse from your existing meter, and paces the additive flow rate to match the fuel flow. When interfaced with an on-board meter computer, can inject additive at different ratios for different customers, simply! A very simple system, using robust parts specifically built for this purpose.

The Viper Eclipse builds on the Digital Viper. It has a more advanced brain and a digital display. But don’t worry about programming, we do it all, no field programming needed. It has self-checking and self-adjusting ability, as well as a digital display with ppm, percent, gallons (or liters) of fuel and gallons (or liters) of additive displayed. It has warning and shutdown modes if additive concentration falls out of the set range. Includes additive meter calibration and priming modes. The Eclipse adds an additive meter and an intelligent “permissive” control system. The operator cannot dispense fuel without first telling the Viper Eclipse to inject, or not to inject additive. No more “forgetting” to turn the injector on or off. Maintaining a 1,000 operation memory of additive and fuel dispensed, date and time.

The Viper Eclipse Control System can be used with any of the Viper pumps.

How to Order Vipers

NOTE: Not all combinations are possible.

How to Order the Viper Concord

Order the GTP-9076, with additive type Q (Stadis 450/corrosion inhibitor). Fill out all other boxes on the chart above as necessary for your application.

Parts & Accessories

NOTE: 55 gallon drums must be horizontal for best operation.

GTP-9276-200

Viper Eclipse enclosure/control box assembly

GTP-9476-V120

Viper display

GTP-8876-6BC

5 gallon suction assembly

GTP-8776-9

5 gallon pail – empty

GTP-8776-8

pail holder

GTP-9568

electronic flow meter (no display)

GTP-8726

sight flow meter

GTP-8726-4

glass tube for sight flow indicator

GTP-8726-SKC

seal kit for sight flow indicator

GTP-2200-23C

o-ring for sight flow indicator, red neoprene

GTP-8695E

four-way air solenoid valve 12 VDC for Viper pump

GTP-9345

stainless steel check valve with Teflon ball, 1/8"

GTP-8720-31C

check valve repair kit for Biobor

GTP-8720-31VG

check valve repair kit for +100, Kathon, LI/LI, Stadis 450

GTP-9071-772

V-R pulse counter, 12-24 VDC

GTP-2305-1-070

three-way test ball valve for Kathon, Ci/Li, Stadis 450, +100

Part No. 26930

drying tube, 3/4" x 6"

GTP-5855

air breather

GTP-8866

1/4" injection nozzle, stainless steel

GTP-9072-1

surge suppressor, 200 VDC max

GTP-9204

250mg squeeze bottle

Viper Pump Rebuild Kits

GTP-8776-1.5C

pump rebuild kit, neoprene, for FSII only

GTP-2200-212T

Teflon o-ring

GTP-2135-FS5

decal, FSII/DiEGME anti-icing additive only

GTP-3355

55 gallon drum level indicator

GTP-3355-10

55 gallon drum rack

GTP-5504

55 gallon drum suction tube

GTP-3895

55 gallon drum vent assembly

GTP-8807

injector (quill)

GTP-2305-2-070

three-way ball valve with neoprene seals

GTP-9651

air regulator/lubricator

Bulletin 36: Viper Additive Injection Systems2024-12-06T16:40:40+00:00

Bulletin 31: Dry Break Quick Disconnect

Heavy Duty Dry Break Quick Disconnect

with stainless steel ball race ring to resist wear
fast change from OVERWING to UNDERWING nozzle
NO SPILL FROM HOSE

Parts & Accessories

1 1/2″ Dry Break Quick Disconnect

GTP-919

1 1/2″ swivel coupler

GTP-1768

dust plug with chain for GTP-919

GTP-920-1, GTP-920-4

1 1/2″ female actuator for GTP-919

GTP-920-2, GTP-920-3

1 1/2″ male actuator for GTP-919

GTP-920-3S

stainless steel 1 1/2″ BSP male actuator for GTP-919

GTP-1428

dust cap with chain for GTP-920 series actuators

GTP-1534

optional 24 x 110 mesh stainless steel strainer for all 1 1/2″ actuators

GTP-1510

GTP-920-2 actuator and GTP-1534 strainer assembly

2″ Dry Break Quick Disconnect

GTP-917

2″ swivel coupler

TL-1652

dust plug with chain for GTP-917

GTP-918-1 & GTP-918-3

1 1/2″ male actuator for GTP-917

GTP-918-2 & GTP-918-4

2″ male actuator for GTP-917

GTP-1653

dust cap with chain for GTP-918 series actuators

Bulletin 31: Dry Break Quick Disconnect2024-12-05T20:52:15+00:00

Bulletin 25: Gammon Gauge

Gammon Gauge™

Direct Reading Differential Pressure Gauge

Why settle for less when you can have the tried and true original ?

Unique Features

Common Features of all Models of the Gammon Gauge™

  • Read differential pressure directly at top of piston

  • Accurate within 1/4 psi at system pressures to 300 psi

  • No subtraction calculation required

  • All models available in aluminum or stainless steel
  • Positive and negative surge pressure will not influence calibration
  • Multiple calibrations: PSI and Kpa (front face), Bar and KG/cm² (back face)

  • Every cylinder tested at 1200 psi
  • Rugged construction – suitable for vehicle or stationary use
  • Built-in gauge protection filter, 10 microns
  • Maximum operation pressure of 300 psi
  • Fittings: 1/4” NPT female, 1/4” BSP available
  • Temperature range of standard Viton GLT seals: -40°F to +400°F (-40°C to +204°C)
  • Ultraviolet light protection – film face cover prevents rays from degrading fuel in the glass tube
NOTE: The GTP-279 filter is obsolete. We offer a conversion assembly GTP-9515-1 (S/S) or GTP-9515-2 (AL). This is a complete replacement for the upper flange.

Calibration Testing

To meet API-1581, you should have a 3-way valve. Our 3-way valve meets this requirement and is used to check calibration as well as to check free movement of the piston.

  1. Establish flow in the system. The gauge should indicate a pressure drop.
  2. Push the test button. The piston should travel to the bottom of the scale.
  3. Release the button and stop flow in the system. The piston should return to zero.

If the piston returns to zero, you have not only calibrated the gauge, you have checked it for free moment across its entire range. If the piston moves slowly, the filter (located in the top of the gauge) may be clogged and need replacement. This calibration technique is accepted by all major oil companies, all major airlines, and military services worldwide. Gammon Gauges™ have been in service in virtually every major airport in the world for as long as 30 years and we have never heard of or seen a single gauge go out of calibration. Occasionally a piston will stick after many years in service, but hand cleaning with “Scotch Brite” plastic abrasive will make it as good as new (Note: Do not clean with sandpaper or steel wool). Replace the o-rings and reassemble.

How to Order

Accessories & Replacement Parts

GTP-686

2″ pressure gauges

GTP-2233

filter element

GTP-672-1

scale: 0-15 psi

GTP-690-1

scale: 0-30 psi

GTP-547-1

glass tube kit

GTP-2200-23VG

cylinder o-ring

GTP-1271

ultraviolet shield

GTP-548

piston

GTP-552-8G

vent port

GTP-560-1

spring, 0-15 psi

GTP-560-2

spring, 0-30 psi

GTP-561

bleeder plug, aluminum

GTP-561-1

bleeder plug, stainless steel

GTP-581-1

cage, aluminum

GTP-537-4

cage, stainless steel

GTP-582

cage screw

GTP-600

strainer set

GTP-701

scale screw

GTP-703

retaining ring

GTP-805

socket plug

GTP-8306

installation kit

GTP-9341

nylon washer

GTP-9470-LH

proximity switch, left

GTP-9470-RH

proximity switch, right

GTP-552-8H

push button actuator body

GTP-9515-2

upper flange assembly, aluminum

GTP-9515-1

upper flange assembly, stainless steel

Maintenance and Rebuild Kits

GTP-9769

Gammon Gauge maintenance kit

GTP-9769-1

Gammon Gauge basic repair kit, 0-15 psi

GTP-9769-2

Gammon Gauge basic repair kit, 0-30 psi

GTP-9769-3

Gammon Gauge basic rebuild & maintenance kit, 0-15 psi

GTP-9769-4

Gammon Gauge basic rebuild & maintenance kit, 0-30 psi

Retrofit Kits for GTP-534

An existing Gammon Gauge™ can be converted to have the Peak-Hold and the Push Button Test Valve by replacing the lower flange of the gauge. On Gammon Gauges™ without test buttons, a GTP-2305V 3-way ball valve can be installed.

GTP-552 series

options for stainless steel, aluminum, push button location, and peak hold

Gammon Gauge™ Control Systems

Protect Against Filter Element Bursting
Add a Differential Pressure Switch to the Gammon Gauge™
Sound Alarm – Stop Flow – Turn on Second Filter
Normally Open or Normally Closed, Fail Safe

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 NEMA 4X.

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 3-way test valve for properly testing the Gammon Gauge™ and Proximity Switch and/or system.

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

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

Notes:

  • GTP-8980 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.

  • GTP-8980B 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.

  • 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-8980B fail safe system unless otherwise requested. The difference is in the internal wiring and components in the controller.

How to Order

Examples

GTP-8980B-C-RH-12-B-0 is a differential pressure gauge with a normally closed switch as follows: push button aluminum gauge, 30 psi 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-8980B-C-RH-12-BKS-0 is the same as above except the enclosure has 2 key lock switches for test and reset per IATA JIG Bulletin 58.

Bulletin 25: Gammon Gauge2024-12-06T16:40:04+00:00

Bulletin 22: Sump Separator for Storage Tanks

Sump Separator for Storage Tanks

Model GTP-616

GO GREEN - Removes water and dirt, saves good fuel!

The Sump Separator separates water from fuel that is drained from storage tank sumps. The fuel and water mixture from the bottom of a storage tank or from the sump of a filter is discharged to the Sump Separator through a nozzle that causes a swirling action to concentrate most of the dirt in the center of the cone-shaped bottom. Water and fuel are allowed to separate by gravity.

The Gammon Sump Separator:

  • Prevents fuel contamination of ground water.
  • Allows for pollution control of soil and streams.
  • Saves valuable fuel.
  • Requires minimal maintenance.
  • Eliminates the need for conventional waste or “slop” tanks.
  • Features an internal epoxy white coating (stainless steel available on request).
  • Has a capacity of 50 gallons standard & up to 300 gallons on special order.

CLEAN CUT
Only the Gammon Sump Separator makes possible a clean cut. The operator can easily see when the fuel/water interface has reached the bottom of the cone. When closing the water drain valve, the operator makes a clean cut, preventing any fuel from leaving with the water. Only fuel remains at the bottom of the cone.

VISUAL CERTAINTY
Direct visual observation of the fuel/water interface is achieved by swinging the cover on its davit so that the operator sees through the fuel to the interface. This provides visual certainty to make a clean cut.

Other sump separator designs on the market rely on a sight glass that the operator observes when draining off the water. Invariably, some of the fuel leaves with the water because the level in the sight glass always lags behind the level in the vessel. The operator can overcome this problem by closing the water drain valve ahead of time. The result is that some of the water is then pumped back to the storage tank.

Gammon originated the sump separator in 1965 and has always used a stainless steel foot valve at the bottom of the cone as shown on page 2. All other manufacturers use common pipeline valves that cause some of the settled water to be pumped back to the storage tank.

No other manufacturer in the world can claim more than 50 years of experience in the sump separator business. In fact – we originated the name “sump separator”!

Not recommended for gasolines or other, low-flash point fuels.

Ordering Information

NOTE: Sump separators cannot be ordered online. Please contact us to get a quote or place an order.

All models include the following:

  • 1 in. ball valve at inlet

  • 1/2 in. ball valve at water outlet

  • Cover with swing-away davit style mount

  • Two 3/4 in. auxiliary fittings for connection of discharge piping from air eliminators, pressure relief valves and drains from filter separators

  • Two 1/2 in. auxiliary fittings for connection of sight glass

  • Foot valve, o-ring sealed; releases fuel for return to storage (1 in. NPT port)

  • Pipe and fittings: steel or ductile iron. Cast iron not used. Stainless steel available upon request.

  • Valves are brass ball type. Stainless steel available upon request.

Base Models

GTP-616A
Model GTP-616A

Use for underground storage tanks. Fuel returns to storage by gravity when foot valve is opened.

GTP-616B
Model GTP-616B

Use for above-ground storage tanks that will gravity drain to the sump separator.

Includes a 10 gpm, 65 foot head ductile iron centrifugal pump with explosion-proof switch, (120 volt, 60 Hz, 3/4 Hp, single phase, explosion-proof motor) to return fuel to storage.

Options

Option 1

Adds discharge swing check valve.

Option 2

Piping connected to pump fuel back to storage through the storage tank drain line.

Option 3

Adds a filter rated at 1 micron, 150 psi design. Recommended only for GTP-616B.

Option 4

Adds connection with 1” ball valve and swing check valve. Use for draining filter tanks when elements are to be replaced.

GTP-616B-5
Option 5

Same as Option 4, except bypass piping also included. When draining a filter tank with a capacity greater than the 50 gallon sump separator, the first 50 gallons will flush out the filter sump water and dirt. The excess can then bypass the sump separator and go directly to storage.

GTP-616B-4-6
Option 6

A positive displacement pump is added to either Option 4 or 5. Pump will self-prime and draw fuel from a low filter sump, an underground storage tank sump, or from a mobile filter having a hose connection. Includes explosion-proof control box (120 volt, 60 Hz, 3/4 Hp., single phase, explosion-proof motor). When ordered on Model B, circuit arranged to prevent both pumps operating at one time.

GTP-616B-7
Option 7

Adds oil bath heating system under the cone-shaped bottom. Includes explosion-proof thermostat, switch and indicator light. 300 watts, 220 volts.

GTP-616A-8
Option 8

Adds 40” sight glass with fittings and ball stop, to prevent flow if glass breaks. Option 8SS is stainless. Option 8B is bronze.

Example Combinations

Model GTP-616A47

This is a sump separator for use with an underground storage tank. No return pump is required because the fuel will drain by gravity back to storage. A connection has been added for taking the drained fuel from a filter and the cone bottom is equipped with a heater.

Model GTP-616B1246

This sump separator is for use with an above-ground storage tank and is equipped with a pump, check valve, and return piping so that the fuel can be pumped back to the storage tank through the storage tank drain line. A connection has been added with a positive displacement pump for taking the drained fuel from a filter that has a sump that is lower than the sump separator.

Sample Builds

GTP-616B

GTP-616B-7

Bulletin 22: Sump Separator for Storage Tanks2024-12-06T16:39:10+00:00
Go to Top