Diverter valve question - Vendor or valve alternatives?

[hollerg]

Who makes an inflatable seal tubular diverter valve for solids handling. So far I have only been able to find Zeppelin, a German Mfg co. Any USA companies a little closer?

As an alternative are there any multiport ball valves that might work? Cycling is only 1/month. T= 200 F max. Pr nomrally 6 psi 30 psi water used for cleaning. Cleaning washes out a solids buildup from dilute phase conveying.

Although the valve will not be actuated while water is under pressure, some salt water will get behind a ball and dry out. The concern is solids forming from evaporation, or powder that would work behind the ball, might seize it or score the seat/sealing surface when actuated the next time.

 

[JimCasey]

Salina Vortex make the industry standard for dilute-phase conveying diverter valves.

(From Memory, and it's been a while): They don't use a ball, it's a rotary cylinder.

 

[hollerg]

Unfortunetely Salina does not make an inflatable seat version. They do not want to quote on this application

 

[gerhardl]

As diverter valves for special applications are difficult to find on the market, you might come better out looking for a combination of single valves.

What about knife-gate valves?

 

[hollerg]

I was trying to have a cavity and deadleg free a path so that as much of the water used for cleaning would be blown from the piping for rapid restart of the process. The product is a salt which would adhere at the point of moisture.

So is this feasible with knifegates? I imagine it takes some sort of flush plate design and a special wye type fitting. The line is 4" round tubing 11 ga, although I could transition to square, if necessary.

 

[DrJim]

Contact me, maybe I can help.
I am currently making one for a major US oilfield co.
mohrfeld@premiumvalves.com

 

[HEC]

Try Nucon

Mark Hutton

 

[JimCasey]

2 posi-flate butterfly valves on a tee, if you really, really MUST have the inflatable seals.