Oceanic Delta 4 DX4

RRP £255

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Even with the best laid dive plans, there are times you encounter conditions beyond your control. The Delta4 is one hot new regulator, ready to take on all challengers with improved performance, new features, improved styling, and
• Diver adjustable inhalation effort
• Patented Dynamic Adjustment automatically maintains inhalation effort throughout the dive
• Adjustable Venturi Switch (A.V.S.) for simple Dive/Pre-Dive Adjustment

VENTURI-ASSISTED PRIMARY PORT

The DX4 Balanced Diaphragm First Stage isn't simply reliable; it also has a unique feature called Venturi-Assist which actually helps provide a "turbo boost" of air flow to the second stage as depth or demand increases. Simply put, the DX4 provides more air to the second stage when you need it most.

SEALED DESIGN

The advanced design of the DX4 Balanced Diaphragm First Stage isolates the critical seats and o-rings from the harsh environment. This helps prevent internal corrosion and contaminant buildup, leading to more consistent performance between service intervals.

ENVIRONMENTAL PROTECTION

For cold water or high sediment diving you can also depend on an optional 'dry' Environmental Protection Kit for the DX4 Diaphragm to help prevent freeze-ups and contamination that effect other first stages. The environmental kit completely seals the upper spring chamber of the first stage to prevent ice crystallization without the hassle and mess of silicone or alcohol based fluids.



TECHNICAL SPECIFICATIONS

WEIGHT

2 pounds, 3 ounces

VALVE

Triple Chrome Plated, Marine Grade Machined Brass 300 Series Passivated Stainless Steel

Diver adjustable inhalation effort

Most downstream demand valve regulators are calibrated during manufacturing to a single, 'middle of the road' operation. Whether finning up current at 100+ feet or merely snorkeling out to the dive site, this factory adjustment may not be optimum for the wide variety of demands we place on our equipment. A simple twist of the Delta 4's adjustment knob enables complete control...set the inhalation requirement to near zero when you need ultimate performance, or tune it for greater resistance as conditions or preferences change.

Patented Dynamic Adjustment

A common objection to adjustable second stages is that divers can't imagine themselves twisting and turning a knob as they descend and ascend through the depths. If inhalation resistance is set near zero at depth, your ascent would require you to manually increase resistance as ambient water pressure is reduced to prevent free-flow. Taking another stride beyond common second stage engineering, Oceanic designed a patented DYNAMIC ADJUSTMENT feature into the heart of the Delta 4. This mechanically balanced valve maintains a preferred breathing resistance throughout the dive. Set it once and the Delta 4 automatically adjusts to make breathing as easy at 100 feet as it is at 30 feet – with no additional manual adjustment.

Adjustable Venturi System (A.V.S.)

The A.V.S. deflector vane found in the Delta 4 diverts the airflow from the valve directly to the mouthpiece, producing smooth venturi-assisted inhalation. With the addition of a user Adjustable Venturi System (A.V.S.), in the form of a simple yet ingenious switch, full adjustment control rests in the hands of the diver.

In-Line Swivel

The Delta 4 features an ergonomically designed in-line swivel for ultimate comfort.

Improved Adjustment Mechanisms

Both the Dynamic Adjustment Knob and A.V.S. Switch are designed to be unobtrusive, yet easily manipulated even with the thickest gloves.

Surge Deflector

Our surge protector (the titanium, blue or yellow that you see in the images above) reduces freeflow caused by surge or oncoming current.

Computer optimized design

Oceanic regulators are exclusively designed using the latest 3-D computer modeling techniques. This allows us the ability to model and test performance while still in the early stages of development. The Delta 4's unique deflector vane and housing design diverts airflow from the valve directly to the mouthpiece, producing smooth venturi-assisted inhalation.

Lightweight

The Delta 4's housing is made from an ABS/Polycarbonate composite blend of materials making the Delta 4 both extremely rugged and lightweight (6.7 ounces) and nearly neutrally buoyant underwater, reducing jaw fatigue on extended dives. The extremely lightweight cover ring is machined from a solid piece of aircraft aluminum, and then hard anodized, utilizing a unique process to prevent corrosion.

Patented Orthodontic Mouthpiece

To further reduce jaw fatigue, the Delta 4 features a patented Orthodontic Mouthpiece, designed to accommodate the natural overbite of the human jaw.

Nitrox Compatibility

The Delta 4 is classified as being suitable for use with nitrox breathing gas mixtures containing up to 40% oxygen by volume without the need for special preparation, cleaning or component parts.

Features & Functions

Valve Type DEMAND

Adjustment KNOB/PRE-DIVE SWITCH

Balancing System MECHANICAL

Integrated Purge Button YES

Mouthpiece ORTHODONTIC

Nitrox Compatibility STANDARD TO 40%

Ambidextrous

Integrated Swivel YES

Weight (without hose) 6.8 OUNCES

Dimensions (front profile) 2.67 INCHES
            

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Exc VAT £206.81Inc VAT £243.00

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