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Diving regulator first stage is divided into pattern of Din and Yoke, the only difference is joint parts(thread or yoke fitting). Scuba diving regulator is a pressure regulator used in a scuba set, regulator first stage supplies scuba diver with breathing gas at ambient pressure from one or more diving cylinders. A gas pressure regulator has one or more valves in series, which let the gas out of a gas cylinder in a controlled way, lowering air pressure at each stage. Generally speaking, buoyancy compensator (scuba BCD, BC jacket), regulator, octopus, scuba diving gauge, scuba diving mask, scuba diving snorkel, scuba diving fins, scuba diving wetsuit are popularly used as scuba diving equipment/gear for scuba divers all over the word. |
Scuba diving regulator first stage (mounted to the cylinder via valves) reduces cylinder pressure to an intermediate pressure, usually about 10 bar (150 psi) higher than the ambient pressure. A balanced regulator automatically keeps this constant as the tank pressure lowers with consumption and the ambient pressure varies with depth. The first stage generally has several low-pressure outlets for second-stage regulators, BCD inflators and other equipment; and one or more high-pressure outlets, which allow a submersible pressure gauge (SPG) or gas-integrated diving computer to read the cylinder pressure.
In an open-circuit scuba set, scuba diving regulator first stage has an A-clamp, also known as a Yoke, or a Din fitting to connect it to the pillar valve of the diving cylinder. Yoke valves are the most common type by far; it clamps an open hole on the regulator against an open hole on the cylinder. The user loosely screws the clamp in place and once the cylinder valve is opened, gas pressure completes the seal along with an O-ring. The diver must take care not to screw the yoke down too tightly, or it may prove impossible to remove without tools. The Din fitting is a type of direct screw-in connection to the cylinder. While less common worldwide, the Din system has the advantage of withstanding greater pressure, permitting the use of high-pressure steel cylinders. Din fittings are the standard in much of central Europe. Adapters are available enabling a Din first-stage to be attached to a bottle with a yoke fitting. Most yoke-type valves are of the K-valve type, which is a simple on-off valve.
Scuba diving regulator first stage has a high-pressure "port" for the high-pressure hose to the pressure gauge. It has a number of "ports" for low-pressure hoses to carry gas to other components, which serve as second-stage valves of various sorts. All unused ports must be blanked off.
With regulators that are used as breathing sources, at least one low-pressure hose connects to a demand valve (second stage octopus). Some low-pressure hoses connect to the diving suit inflation valve and the buoyancy compensator inflation valves, these low-pressure hoses are called direct feeds.
Relevant Products: Scuba gear,diving equipment such as scuba bcd, buoyancy compensator device, diving regulator first stage, diving regulator second stage, wetsuits in 2mm,3mm,5mm,7mm. shorty wetsuit, sleeveless wetsuit, triathlon wetsuit, diving console gauge, diving mask, snorkel, diving fins, scuba tank, diving cylinders, sea scooter, underwater propulsion, diving flashlight, dive torch, diving knife, diving gloves, diving hood, diving boots, rash guard, spear gun, mesh bag etc.
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