DOTS Water Trailer Specs 14 July 2025.docx

Directorate of Training Sustainment (DOTS) Water Trailer Specifications for 500 Gallon Water Trailers.

Introduction: To ensure that the water trailers are available and operate properly when needed. The contractor will make sure that the water trailers meet the specifications listed below. These water trailers will be towed with allowable speeds of 80 km/h highway and 48 km/h cross-country. The water trailers we are requesting are not IAW industry standard they are IAW Department of the Army standards (higher level).

POTABLE WATER TANK (FIELD GRADE STEEL) specifications:

1. The Water Trailers must be 500 gallons oval straight barrel.

2. The Water Trailers must not have a slope.

3. The Water Trailers must be made of 10-gauge Type 304L stainless steel.

4. The Water Trailers must be certified under NSF/ANSI 61(water system components - sets minimum health effects requirements for the chemical contaminants and impurities imparted from products, components, and materials to drinking water systems) for drinking water use.

5. The Water Trailer’s entire tank must be double walled.

6. The Water Trailers must have an insulated stainless-steel tank.

7. The Water Trailers must be injected with polyurethane.

8. The Water Trailer’s weld must be above the water line.

9. On the Water Trailers, there will not be a crack between the tank hull and the drain that exposes the insulation.

Composition specifications:

1. The Water Trailers must have the following percent composition: Carbon (0.035 max), Manganese (2.00 max), Phosphorus (0.05 max), Sulfur (0.030 max), Silicon (1.00 max), nickel (8.00-13.0), chromium (18.0-20.0), iron (balance).

2. The Water Trailers must be certified under NSF/ANSI 61 (water system components - sets minimum health effects requirements for the chemical contaminants and impurities imparted from products, components, and materials to drinking water systems) to show that they are approved for use with drinking water and made of food grade materials.

3. The Water Trailers should not have a stainless-steel tank temperature that will exceed 212°F (100°C). This is important because Cyanide gases may be released when foam is heated above this temperature.

4. The Water Trailers must have an entire weld that is continuous without any gaps. This is essential because gaps cause leaks.

5. The Water Trailers heads must be flanged style for strength made of 10-gauge T304L stainless steel.

6. The Water Trailers must have a drain plug at the bottom of the trailer.

WINGS, BOLSTERS AND SIDEFILLERS specifications:

The Water Trailer’s wings, bolsters, and side fillers must be made of stainless steel.

TANK MOUNTING specifications:

The tanks will be mounted directly to the trailer decking with adequate hardware (nuts and bolts).

WELD TANKS FINISH specifications:

1. The Interior welding must be done using W4 and/or W5 steel.

2. The welding must have a smooth finish.

3. The welding must be done using a full stitch method.

4. After the welding process is complete, no seams should be visible in the final product.

5. The drain plug in the bottom of tank must be welded using a plug weld.

6. All seams must be welded on the exterior of the tank.

MANHOLE specifications:

1. The Manhole must be 20" in size and made of T-304 stainless steel, with a quick opening single cam latch.

2. The Manhole must have a double lid rubber seal that is comprised of 1–2-inch thickness.

3. The Manhole must have a hinge stop for keeping the lid off the shell when open.

4. The Manhole must have a locking provision for the government; contractor will supply pad locks.

5. The Manhole must be in the top center proximately and hinged at the front.

6. The Manhole Cover must have a double gasket (one on tank and one on manhole cover).

VENTING specifications:

The Water Trailers must have one (1) 1/2" bronze vent with baffle located in the manhole lid.

TRAILER LIGHTING specifications:

1. The Trailer Lighting must have dual voltage lights (12 and 24 Volts) to meet tactical vehicle and GSA vehicle specifications.

2. The Trailer Lighting must be wired with a NATO electrical plug. This is mandatory because primary towed vehicles will be the LMTV 2-1/2 ton and 5-ton military trucks.

REFLECTORS specifications:

The Reflectors must meet tactical and GSA vehicle specifications.

ELECTRICAL specifications:

1. The Electrical must have a 4-pin harness which will be encased in wire loom.

2. The Ground wire must be separate from the rest of wiring harness.

3. Install grommets for harnesses and ground wire separately.

ELECTRICAL PLUG specifications:

1. The NATO male electrical plug must be located at the front of trailer at the coupler.

2. An electrical adapter must also be supplied to go from the NATO connector at the front of the trailer to a 4-pin flat wiring harness that makes the trailer towable behind a vehicle that is equipped with a 4-pin receptacle.

PLUMBING OUTLET specifications:

PLUMBING (FRONT OF TANK):

1. Each water trailer must have a manifold that has a one (1) 1-1/2" outlet that goes to a bronze lockable ball valve. The 1-1/2" stainless steel piping will split into two directions extending to both sides of the trailer. Each side of the trailer will have two (2) self-closing faucets with a 3/4" diameter opening. The faucet will automatically shut off the water flow when the handle is released preventing leaks or water waste. Placed externally near each frame rail.

2. Each water trailer must have faucets that are stainless-steel with covers that can be locked to protect the exterior faucets on both sides of a trailer from unauthorized access or damage.

3. Each spickets must be tied down securely with strong steel straps to prevent them from moving and ensure they remain stable and protected during handling, transport, or installation

OUTLET PLUMBING (REAR OF TANK):

1. Each trailer must have a 2-inch diameter butterfly valve installed, which is then connected to a bronze camlock adapter.

2. Each water trailer must have a lockable cap with a chain or lanyard cable.

3. Trailers must have a tandem axel (two axles) that has a Gross Vehicle Weight Rating (GVWR) of 7,000 pounds.

FRAME specifications:

1. The water trailer frame must have heavy duty steel channel throughout with a 52" drawbar and 57" x 96" deck.

2. The maximum weight of the water trailers must not be over 7,000 including its own weight.

3. The frame must have a tandem axel.

DECKING specifications:

The entire top of the trailer must be covered with carbon steel diamond plate.

BUMPER specifications:

1. The rear bumper must be made of 5" x 3" x 1/8" carbon steel.

AXLES specifications:

1. The water trailer must have two (2) each 3,500 lb. 2-3/8” round axles.

2. The Water trailer must operate with hydraulic brakes (free backing in reverse).

WHEEL ENDS specifications:

1. The Wheel Ends must have four (4) greased bearings.

2. The Wheel Ends must have four bearings, each supplied with grease lubrication.

3. The wheel ends must have six (6) studs with easy lube axles.

WHEELS specifications:

1. Each water trailer must have four (4) 16" x 6” steel wheels.

2. The Wheel rims must be painted the same color as the trailer (OD Green).

TIRES specifications:

1. The Water Trailer must have four (4) tires that are 235/75R16 Cooper Discoverer HT or similar.

BRAKE SYSTEM specifications:

1. The Brake System must have hydraulic surge brakes for a tandem axle trailer with emergency break-away braking.

HITCH specifications:

1. The surge brake coupler must be located at the front end of the trailer tongue.

2. The surge brake coupler must be integrated with the actuator and is responsible for activating the hydraulic brake system.

3. The hitch must be 3.0”.

4. The lunette eye must have three (3) adjustable positions.

5. The Hitch must have a 12,000 lb. load capacity.

6. Hitch height of Lunette eye must be set for 35” with adjustability down to 21”.

DOLLY JACK specifications:

1. The Dolly Jack one (1) each must be heavy duty with 2000 lb. capacity.

2. The Dolly Jack must be retractable.

3. The Dolly Jack wheel must be mounted to trailer tongue.

FENDERS specifications:

1. Each water trailer fender must be made of carbon steel

2. The Fenders must have a mud splash-back plate.

MUDFLAPS specifications:

1. The Mudflaps must be installed at the rear of fenders.

2. The Mudflaps must be plain black rubber.

SAFETY CHAIN specifications:

1. The Safety Chain must be two (2) each 5/16" (18,800 lb.).

2. The trailer must be equipped with two 5/16-inch safety chains, each capable of withstanding 18,800 lbs.

3. The Safety Chains must have hooks.

4. The Safety Chains must incorporate hooks.

TIE DOWNS specifications:

The Water Trailer must have four (4) tie-down rings, one (1) at each corner of the trailer's exterior, are required for securing the loads.

PAINT specifications:

1. The Water Trailer must be OD Green (no gloss).

2. The Water Trailer Wheels must be painted to match the trailer's paint color.

3. The stainless-steel tank must be painted to match the trailer's paint color.

PLUMBING WILL NOT BE PAINTED.

MARKINGS specifications:

1. The following must be installed on both sides and back of the Water Tank:

2. Four (4)" Letters must read: "POTABLE WATER ONLY" stenciled in black on the tank.

3. and Portable water only must be on both sides of the tank.

4. Two (2)" letters and numbers must read: "500 GALLONS" stenciled in black on the tank.

MANUALS specifications:

1. There must be one (1) each operation and maintenance manual supplied and shipped with the unit.

2. There must be one Operator & Maintenance Manual shipped with each water trailer.

3. There must be a wiring schematic with each water trailer.

4. There must be an equipment parts list with each water trailer.

PASSIVATION specifications:

Treat the complete interior surfaces of the tank through passivation by applying an acid solution to dissolve free iron particles and promote a protective oxide layer, preventing rust to remove free iron from the surface of the metal.

DATA PLATE specifications:

There must be a government data plate with contract information on it with the company name and the phone number.

UID specifications:

The Water Trailers must have a UID (Unique Identification) plate installed per MIL-STD-130N, on the trailer.

Pick-Up/Drop-Off Locations: The Government POC will plan for delivery of water trailers. There will be one assigned location for delivery at Fort Benning. The contractor must provide their own transportation to come to Fort Benning to deliver the water trailers.

Inspection: Pick-Up/Drop-Off Locations: There will be a 100% inspection upon delivery of the water trailers between both parties. The Water Trailers must pass food grade inspection with no possibility of rust or seepage into seam. An Internal Final Inspection and a leak proof test of all sealed areas shall be performed prior to, and in preparation of a Customer/Government Inspection. If any deficiencies are found, they shall be corrected before unit is shipped. Representative of the Contracting Provider will be present for testing and serviceability prior to acceptance at the receiving location.

Maintenance/Repair: Unit must be guaranteed to be free from defects in material and workmanship, while under the normal use and service by the original purchaser, for a period of ONE (1) year from the date unit is delivered. Local repair facility will be sponsored.

To be considered for the award, offerors must strictly adhere to the Government and shall not substitute for or interpret them based on private industry standards.