DA-4D & DA-8D Ultra-High Pressure Increasers
Mr. G.J. DeSantis, President of JETECH® with the DA-4D
What is the DA Series of Ultra-High Pressure Increasers?
The Model DA-4D and Model DA-8D are not oil-to-water intensifiers that have been used in the marketplace since 1971. The DA Series generates pressure with an initial charge from any ordinary cleaning or jetting style reciprocating pump.
This new line of product performs as a pressure increaser which can boost pressure 4 or 8 times depending on the specific model used. The DA-4D and DA-8D use a water-to-water form of intensification. These units employ the pressure from the charge pump to help generate by piston or plunger ratios the increased pressure. So although it has some similarities to oil-to-water intensifiers, there are some important differences.
DA Series Construction
The DA Series is composed of twin simplex double-acting plunger pumps and a valve synchronization system. The pump barrels and the valve blocks are manufactured from duplex stainless steel.
Liquid-Ends
Both the low and high pressure liquid-ends of the DA Units are precision-machined to exacting tolerances. They feature segmented cylinders of high grade stainless steel material.
Single-Spring Valves
JETECH®'s single-spring full cartridge valves are utilized on the high pressure side of the unit. JETECH®'s unique patent pending valve synchronization and flow distribution system is utilized on the inlet (low pressure) side of the unit. The valve synchronization system is achieved by an AC/DC Electrical Controller which can be operated from a 12 volt waterblaster battery unit.
Plungers
The plungers are single-piece step construction manufactured to exacting tolerances to ensure a proper pressure ratio.
Plunger Seals
JETECH®'s special long life machined seals are utilized on the high pressure side of the unit. The low pressure end utilizes conventional seals.
Gauge
A stainless steel liquid-filled pressure gauge with a dial face calibrated
to 50,000 PSI is provided with the DA-4D unit. The DA-8D
is furnished with a 35,000 PSI dial face.
DA
Series Usage
The DA Series is designed to fit onto a standard pick-up truck. It is provided with a baseplate with lift-truck capabilities. Also available is a single axle trailer which can be converted to an enclosed unit if desired. If the DA Series Units are placed close to the areas of operation, more expensive high pressure hose can be minimized. The low pressure inlet hose could be used for longer runs with greater economy. In addition, extended runs of lower pressure hose offer reduced pressure drop as compared to higher pressure smaller diameter 40k hose.
The actual hook-up is achieved via a quick coupling from the discharge
of the charge pump to the inlet suction of the DA Series. The distance
between the pump unit and the DA Series Unit can be as short or
long as the job requires.
General Arrangement of the DA Series Units
Advantages of the DA Series
The DA Series offers many advantages over both traditional oil-to-water intensifiers as well as existing 40,000 PSI crankshaft driven plunge pumps. This unit is different because it is designed to be used in harmony with your existing 10k pump. As a pressure booster it can offer instant 40k access to a "would-be" ultra-high user for a fraction of what a new oil-to-water intensifier or crankshaft driven plunger pump would cost.
- Immediate Pressure Increase for Fixed Applications
In automotive and other industrial plants the current crankshaft driven plunger pumps most frequently seen are limited to a maximum 10k pressure. Frequently these pumps are fixed with fixed piping. - Reduced Hose or Piping Costs
Perhaps the greatest single expense in ultra-high work is the high pressure hose or piping. The DA Series is portable and can be moved close to the work site. As such, the lower pressure hose coming from the 10k (or smaller) pump to the DA Unit is maximized while the higher price 40k hose from the DA Unit to the application site is minimized. Depending on the distances to be covered, this feature will offer significant savings. In many cases, the cost of the DA Unit will be less than reconfiguration of the piping for a higher pressure crankshaft driven plunger pump. - Access to Confined Spaces
The DA Unit is compact in physical dimensions and light in weight to allow ease in transporting the unit. The unit placed on a single baseplate offers the great advantage of being able to get into confined spaces. The baseplate offers fabricated forklift tine slots to allow easy secure transportability. - Utilization of Existing Lower Pressure Pumping Systems
The DA Units operate with your lower pressure waterblasting systems which allow greater utilization of existing capital equipment. - No Need for Expensive Pulsation Dampeners
The DA Series Units offer minimal fluctuation in pulsation patterns which allow the elimination of bulky and expensive pulsation dampening systems. - A Water-to-Water Ultra-high Pressure System Avoids Fluid Contamination
In oil-to-water ultra-high pressure intensifier systems a frequent cause of catastrophic failure is water contamination in the hydraulic oil systems. This potential is eliminated due to the DA Series' utilization of a water-to-water technology. - Ultra-High Pressure at the Lowest Price Available
Ultra-high pressure equipment is expensive from any manufacturer. However, in comparison to oil-to-water intensifiers and crankshaft driven plunger pumps the DA Series Units are the best buy on the market. In fact, our leasing programs can provide our equipment at a very low monthly rate. These units can pay for themselves in a relatively short amount of available monthly utilization time. Our sales staff can offer a computerized system that will calculate from your own information the exact payback interval in hours per month. JETECH® offers many different acquisition programs that will meet your specific requirements.
There are currently two models from the DA Series: the DA-4D which increases pressure on a 4:1 basis and the DA-8D which increases pressure on an 8:1 basis.
The DA-4D is rated for a maximum pressure of 40,000 PSI with a 10,000 PSI charge for the conventional jetting pump. It will accept 24 GPM and yield 6 gpm at 40,000 PSI.
The DA-8D is rated for a maximum pressure of 20,000 PSI with a 2500 PSI charge for the conventional jetting pump. It will accept 80 GPM and yield 10 GPM at 20,000 PSI.
These ratings are given as maximum values, while smaller flow feed capacities
into the DA Series Units are acceptable.
Use these performance charts for the DA-4D and DA-8D. The output PSI has values given on the left vertical scale and input PSI is given on the bottom horizontal scale. By traveling to the diagonal and over to the output scale you can locate your "boosted pressure" from your original input pressure. On the top chart, we can take 7000 PSI input pressure and by going up to the diagonal and over, we find that the boosted pressure is 28,000 PSI.
The capacity in GPM can be read the same way. Take the input capacity on the top horizontal scale and go straight to the diagonal line and over to the vertical scale showing output capacity.