internal view of the PECO Series 57 vessel

Gammon - Deadman and Water Control Systems

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The Easy-Fueler
Deadman and Water Control Systems

Deadman Handle and Cord
Deadman Control System
Water Control System
Combination Deadman and
Water Control System

Mini - Deadman

The heart of any deadman is the switch. The switch in this deadman has a built-in rolling diaphragm seal, aluminum body (not glass, rubber, or plastic) and an 8 amp contact rating. It is hermetically sealed, yet is easily replaceable, incorporating "push-on" type electrical connections, eliminating troubles with wire nuts or soldering. In addition, the housing is O-ring sealed and has an anodized aluminum switch carrier and cable base fitting. The strain relief is a spiral type with a water-tight seal.

Additional Features:

  • Stainless steel trigger
  • Recessed body screws
  • Inexpensive
  • Durable
  • Compact
  • Easy to repair
  • Good for -55o to 180o F
  • Compatible with any deadman system
  • Can be hung on the trigger for storage
  • Body screws are recessed to prevent damage
  • Low operating force required
  • Designed for the aviation environment
  • Easy to assemble/disassemble
  • Wear resistant
Dimensions: 4" x 1 3/4 "
Weight: 6 oz.
Material: UHMW������Polypropylene

These handles are not suitable for AC applications unless an intrinsically safe barrier / relay is used.

ALJAC Deadman Handles - Pneumatic, Hydraulic or Electric

These Deadman handles fit the hand for maximum operator comfort. All models are designed for easy replacement of components. The air and hydraulic valve is of the plug-in type; in the electric model the switch mounts on a plug-in type carrier. All are o-ring sealed.

Hard nylon coating on the handle and trigger provides an exceptionally smooth surface. heavy arctic gloves cannot accidentally jam the Deadman control in the "open" position because the trigger in not enclosed. Also, the operator cannot purposely jam the trigger with a screwdriver.

Electric Deadman Handle:

Also recommended for intrinsically safe controls
GTP-937-6 Handle only - no cable
GTP-2718 Replacement switch
GTP-2977-4 Replacement strain relief with 2" of heat shrink tubing

Switch Data:
  • SPST normally open
  • Up to 28 volts DC
  • 5 amps resistive
  • 3 amps inductive
  • These are switch limits, not cable limits
Note: These handles are not suitable for AC applications unless an intrinsically safe barrier / relay is used.

Pneumatic and Hydraulic Deadman Handle:

GTP-2614-1 2-1/4" NTP Pneumatic handle
GTP-2614-2 2-1/4" BSP Pneumatic handle
GTP-2614 2-1/4" NPT Hydraulic handle

All connection threads are internal

Dimensions: 1.4 x 3.5 x 7" (35 x 89 x 178mm)
Weight 3/4 lb. (0.34kg)
Material: Cast aluminum, hard nylon coated

For information regarding Deadman hoses please contact us.

Deadman and Water Control Systems
Explosion Proof Controls for 120-240 VAC
50 / 60hz & 6 - 48 VDC

These intrinsically safe rated systems utilize U.L. Listed Class I, Division I, Group D components and a U.L. listed intrinsically safe control (Please note that controls on DC units are MESA, not U.L.). Power levels in the cord and handle and / or the water sensor are too low to cause a shock or fire even if the cord is severed.

Note: Conductive type water controls should NOT be used on systems pumping fuel with anti icing additive (DiEGME / Prist) as used by the military, Phillips, and some other oil companies.


1- Water probe version comes with red indicator light.
2- When grounding clamp is ordered, system comes with red and green indicator lights.
3- Probe designation - if box is marked with (0) system gets standard GTP single or dual stage probe.

Critically important safety information
RE: All GTP-1750 Series water detector systems.

It is important that these devices not be used on jet fuel containing anti-icing additive ( AKA "Prist, Diegme - Diethylene Glycol Monomethyl Ether) unless special care is taken to ensure that all water is regularly (daily) drained from all tank and filter sumps and low points (if applicable)

While such daily drainings are considered required standard practice in this industry, with conductivity type-probes and anti-icing additive it becomes more important to drain sumps regularly.

A pool of water lying in the system will rapidly draw additive from the fuel. Some research indicates that so much additive will go into the water that the resulting liquid can be 25% additive and only 75% water after less than a week. Additive content will continue to rise and when the concentration exceeds about 40%-50% (depends on conditions) the probe will no longer be able to detect this mixture of water and additive.

This is a water probe, and is not designed to detect water mixed with such high concentrations of additive.

If you are using fuels that contain the additive and are not 100% confident in your personnel sumping all water on a daily basis, we suggest you use either a mass sensor or a float type detector.

Deadman Hose: Both Hoses Have Neoprene Construction, Buna-N Tubes

Manufactured to Gammon Technical Products Inc. specifications, this hose is superior to any available air deadman hose on the market. It is suitable for all refueling operations.

The tubes are made of Buna-N (Nitrile rubber) to resist fuel from cross-leakage in the control system. The brand reinforced tubes have neoprenen covers to resist oils that contaminate ramp areas. A special additive is included to give the cover superior resistance to cracking.

Order model number GTP-1202. Available in cut lengths or reels, with or without fittings.

Operating Pressure: 200 psi
Burst Pressure: over 800 psi

Spring Rewind Cable Reel

These reels are industrial-duty, long lasting spring rewind reels. They are equipped with four-way roller assembles.

Rewind: A heavy-duty spring motor provides self-contained rewind power. A non sparking ratchet assembly locks the reel when the desired length of cable has been paid out.

Rollers: All models are supplied with a 4-way roller assembly.

Cable Stop: A cable stop may be used to prevent damage to rollers and handle and to permit adjustments of free cable.

Series SCR700 Standard Configuration Shown

Spring Rewind Dual Hose Reel - To handle twin deadman hose.

Hannay's Series N600 twin deadman hose reels are spring retractable. They handle 1/4" and 3/8" twin sensing hose in lengths up to 100 feet. Series N600 reels have two swivel joint inlets and two outlet risers to handle twin hose for a sensing control. This reel plays a necessary role in maintaining safety during refueling operations.

Rewind: A heavy-duty spring motor. A non-sparking ratchet assembly locks the reel when the desired length of hose has been paid out.

Inlet & Outlet: 1/2" female NPT threads.

Rollers: All models are supplied with a 4-way roller assembly.

Hose Stop: A hose stop may be used to prevent damage to rollers and deadman handles.

Series N600 Shown with roller in TR position.

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