JacobAdkins
Registered
I want to put a Xstream on a MK25 Evo what adapters will I need since I am using a Poseidon second stage? Gonna be using this for sidemount. I read that Poseidon regs need adapters etc if put on a different brand.
Putting Poseidon Xstream on Scubapro MK 25 Evo
- Thread starter JacobAdkins
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- posedion scubapro side mount
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The Ruttmeister
Contributor
Not true.
Really old Poseidon stages might have metric threads. But that's rare.
You might be referring to the fact that Xstream and Jetstream stages are downstream regs that will lock up if the IP runs away (most other regs will free-flow).
The stock Poseidon hose (might) have a built in OPV (over pressure valve) to prevent that. The newer first stages have it built in.
You can do what I have done: I have a newer first stage that doesn't have an OPV, and the hoses don't have the built in OPV. So I just added a separate OPV that is screwed into an IP port on the first.
Some people might point out that the odds of a decent first having the IP run away like is so rare that it's not worth worrying about...
But the OPV was $10.
Really old Poseidon stages might have metric threads. But that's rare.
You might be referring to the fact that Xstream and Jetstream stages are downstream regs that will lock up if the IP runs away (most other regs will free-flow).
The stock Poseidon hose (might) have a built in OPV (over pressure valve) to prevent that. The newer first stages have it built in.
You can do what I have done: I have a newer first stage that doesn't have an OPV, and the hoses don't have the built in OPV. So I just added a separate OPV that is screwed into an IP port on the first.
Some people might point out that the odds of a decent first having the IP run away like is so rare that it's not worth worrying about...
But the OPV was $10.
I have a Jetstream on a Mark V. If you have a downstream second stage teamed with it then you can use this:
dgx-adapter-lp-poseidon-2nd-stage-black-m31x1-5-f-9-16-inch-m
Or what I am using, this with a built in pressure relief:
www.divegearexpress.com
The Jetstream and Xstream are pneumatic servo actuated valves that are effectively upstream so a pressure relief must be used, either another second stage that is downstream, an OPV in the first stage or an adapter such as the Omni with integrated OPV or the OEM Poseidon hose with integrated OPV.
Here I am diving my Jetstream on the Omni swivel with my Mark V and an Oceanic octopus (which could act as the downstream OPV in the system):
James
dgx-adapter-lp-poseidon-2nd-stage-black-m31x1-5-f-9-16-inch-m
Or what I am using, this with a built in pressure relief:
OmniSwivel LP 2nd Stage V2 Swivel: Poseidon M31x1.5 F = 9/16-Inch M
This version of the 360 degree OmniSwivel adapter connects a standard low pressure regulator hose to the special M31x1.5 fitting found on the Poseidon Xstream and Jetstream second stages.
www.divegearexpress.com
The Jetstream and Xstream are pneumatic servo actuated valves that are effectively upstream so a pressure relief must be used, either another second stage that is downstream, an OPV in the first stage or an adapter such as the Omni with integrated OPV or the OEM Poseidon hose with integrated OPV.
Here I am diving my Jetstream on the Omni swivel with my Mark V and an Oceanic octopus (which could act as the downstream OPV in the system):
James
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