UNDERWATER LIFTING BAGS
FOR SALVAGE AND RECOVERY

EXCLUSIVE SALES TERRITORIES AVAIALABLE FOR PREMIER DEALERS IN NORTH AMERICA

   

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UNDERWATER LIFT BAGS
As ambient pressure increases with water depth a flexible buoyancy unit will decrease in volume as it goes deeper because the air inside becomes compressed and occupies a smaller volume. Conversely, as it rises, the air inside will experience a lesser surrounding pressure and expand to provide a greater volume as the amount of buoyancy (lift) is equal to weight of the volume of water displaced, it follows that the amount of lift varies in proportion to the change in depth. In other words, a lift bag going down is compressed and provides decreasing buoyancy while a bag coming up expands and provides increasing buoyancy.

Underwater Lifting Bags are available in 4 styles. Open Bottom Parachute Style, Enclosed Pillow Style, Enclosed Cylindrical Pontoon Style, and Enclosed Elongated Pontoon Style. All Lifting bags use MS4000 Material, Polyester Webbing with strength up to 20,000 lb. breaking load, all stainless steel hardware, and have a 5:1 working safety ratio.

 

Underwater Lifting Bag

PILLOW LIFT BAGS
Totally enclosed pillow style lift bags in the range of 200-12000lb / 90-5500kgs. lift capacity. The Sava enclosed pillow bag is the most versatile lift bag when shallow water or towing is a concern. The pillow style can be rigged in an upright or flat position. The pillow can also be used inside vessels under decking.

All enclosed pillows are manufactured from our MS-4000 specially formulated fabric. Over-pressure relief-valves for venting expanding air during ascent.  Stainless steel ball valve deflation and stainless steel air coupler are incorporated on every bag. Every enclosed pillow bag is designed with a pick point located at the bottom and handles are located at the top.

The webbing harness is manufactured with an overall breaking strength of 20,000 lbs.  There are a multitude of rigging options for pillow bags. Pillow bags are perfect for vessel salvage, automobile recovery, underwater construction, logging, dock support during flotation repair, and aircraft recovery

MODEL OPV'S LIFT POINTS DIAMETER (Inflated)
PB200 TWO ONE 19"/48cm
PB500 TWO TWO 22"/56cm
PB1000 FOUR ONE 30"/76cm
PB2000 FOUR ONE 36"/91cm
PB4000 FOUR ONE 47"/119cm
PB6000 SIX ONE 49"/125cm
PB8000 EIGHT ONE 51"/130cm
PB12000 EIGHT TWO 57"/145cm
MODEL CAPACITY DIMENSIONS LIFT WEIGHT
PB-200 200 lb. 30" x 40" / 76cm x 102cm 220 lbs. / 100 kgs. 8 lbs. / 4 kgs.
PB-500 500 lb. 35" x 54" / 89cm x 137cm 550 lbs. / 249 kgs. 12 lbs. / 6 kgs.
PB-1000 1000 lb. 47" x 60" / 119cm x 152cm 1100 lbs. / 499 kgs. 16 lbs. / 7 kgs.
PB-2000 2000 lb. 58" x 70" / 147cm x 178cm 2200 lbs. / 998 kgs. 22 lbs. / 10 kgs.
PB-4000 4000 lb. 74" x 75" / 188cm x 191cm 4400 lbs. / 1998 kgs. 40 lbs. / 18 kgs
PB-6000 6000 lb. 77" x 108" / 196cm x 274cm 6400 lbs. / 2909 kgs. 65 lbs. / 30 kgs.
PB-8000 8000 lb. 80" x 127" / 203cm x 323cm 8400 lbs. / 3818 kgs. 90 lbs. / 41 kgs.
PB-12000 12000 lb. 90" x 151" / 228cm x 383cm 13000 lbs. / 5909 kgs. 115 lbs. / 41 kgs.

 

PARACHUTE BAGS
Parachute Style or Open Bottom lift bags range from 150 lb. to 6 Metric Ton (68kg-6,000kg) lift capacity. Sava professional commercial open bottom lift bags are the most commonly used in commercial and military salvage. The most commonly used bag for deep water lifts.

Parachute Lift Bag

All parachute type bags have straps fabricated directly into the body for maximum strength and stability. Manufactured from our specially formulated MS4000 fabric built durable to withstand many years of abuse.

1 Ton and below:
•Treated webbing with 10,000 lb. break strength
•5000 lb. stainless steel D-ring single pick point
•5:1 Safe working ratio•100% electronically welded


2 Tons and above:
•Treated webbing with 20,000 lb. break strength
•single pick point with master link and shackle
•5:1 safe working ratio•100% electronically welded
MODEL CAPACITY DIMENSIONS LIFT WEIGHT
PL-150 150 lb. 26" x 30" / 66cm x 76cm 165 lbs. / 75 kgs. 5 lbs. / 2 kgs.
PL-300 300 lb. 32" x 36" / 81cm x 91cm 330 lbs. / 150 kgs. 8 lbs. / 3kgs.
PL-500 500 lb. 40" x 46" / 102cm x 117cm. 540 lbs. / 245 kgs. 11 lbs. / 5 kgs.
PL-1000 1000 lb. 58" x 57" / 147cm x 144cm 1100 lbs. / 500 kgs. 15 lbs. / 7 kgs.
PL-2000 2000 lb. 74" x 76" / 188cm x 193cm 2200 lbs. / 1000 kgs. 19 lbs. / 9 kgs.
PL-4000 4000 lb. 80" x 88" / 203 cm x 224cm 4300 lbs. / 1954 kgs. 40 lbs. / 19 kgs.
PL-6000 6000 lb. 90" x 112" / 229cm x 285cm 6400 lbs. / 2909 kgs. 60 lbs. / 27 kgs.
PL-12000 12000 lb. 97" x 136" / 246cm x 346cm 13200 lbs. / 6000 kgs. 85 lbs. / 39 kgs.

Dump Valve

Quick change dump valve design means you will never be without our lift bags when you need them most. Our custom flange is fabricated into the top of models PL-150 through PL-2000 and the pvc dump valve which is built and calibrated in our factory with all stainless steel / pvc construction simply screws into the flange. If the valve ever needs to be replaced unscrew the old one, screw in the new one, your back in business in less than 5 minutes! The dump valve can be operated below by a pull of the lanyard or above by pushing in on the disc.


 

CYLINDRICAL PONTOONS
Cylindrical pontoons are manufactured in lift capacities of 1000 lb. to 20 ton capacity. Cylindrical pontoons use the proven octagon design and is a great bag for shallow water salvage. Pontoons are more efficient when few bags are required. Each cylindrical pontoon is equipped with stainless steel ball valve deflation and a hose whip with stainless steel air coupling inflation. All cylindrical pontoons are stringently tested and are equipped and ready for deployment upon arrival. Pipe-laying, underwater construction, draft reduction, cable installations are just some of the uses for the cylindrical pontoon.

MODEL OPV'S LIFT POINTS
PP1000 FOUR ONE
PP2000 FOUR ONE
PP4000 FOUR ONE
PP6000 FOUR ONE
PP12000 EIGHT THREE
PP20000 TWELVE FOUR
PP40000 TWELVE FOUR
MODEL CAPACITY DIMENSIONS LIFT WEIGHT
PP-1000 1000 lb 28" Dia. x 60" / 71cm x 152cm 1200 lbs. / 545 kgs. 35 lbs. / 16 kgs.
PP-2000 2000 lb 45" Dia. x 60" / 114cm x 152cm 2200 lbs. / 998 kgs. 45 lbs. / 21 kgs.
PP-4000 4000 lb 45" Dia. x 80" / 114cm x 203cm 4400 lbs. / 1995 kgs. 70 lbs. / 32kgs.
PP-6000 6000 lb 55" Dia. x 80" / 139cm x 203cm 6300 lbs. / 2864 kgs. 80 lbs. / 36kgs.
PP-12000 12000 lb 62" Dia. x 121" / 196cm x 307cm 13000 lbs. / 5909 kgs. 130 lbs. / 59kgs.
PP-20000 20000 lb 77" Dia. x 156" / 196cm x 396cm 22000 lbs. / 9989 kgs. 180 lbs. / 59kgs.
PP-40000 40000 lb 94" Dia. x 181" / 239cm x 457cm 44000 lbs. / 20000 kgs. 325 lbs. / 148kgs.

 

SHALLOW WATER LIFTBAGS
Shallow water lift bags are the most commonly used for moving boulders, moorings, cable and pipe lines. With the Shallow water lift-bag you are able to extract the maximum amount of lift in the minimal amount of water.
Manufactured from our specially formulated MS4000 fabric built durable to withstand many years of abuse. Shallow water lift bag models have lift capabilities of 500, 1000 & 2000 lbs. All models have a multi strap configuration with a 5000 lb. stainless steel D-ring single pick point bottom and a single stainless steel D-ring top center for retainer or retrieval line.
Models SW500, SW1000, & SW2000 are constructed using state of the art electronic radio frequency welding technology. Each and every bag comes equipped with over pressure valves, inflation and deflation port. Shallow water bags can also be used has jacks in dock and pier construction.

MODEL CAPACITY DIMENSIONS LIFT WEIGHT
SW500 500 lb. 45" x 45" / 114cm x 114cm 540 lbs. / 245 kgs. 17 lbs. / 9 kgs.
SW1000 1000 lb. 59" x 59" / 149cm x 149cm 1100 lbs. / 500 kgs. 27 lbs. / 13kgs.
SW2000 2000 lb. 68" x 68" / 172cm x 172cm. 2100 lbs. / 1000 kgs. 35 lbs. / 16 kgs.

 



SAVATECH CORP - DAYTONA BEACH, FLORIDA - 386-760-0706 - 888-436-9778

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