Retainerless Duo Wafer Check
Retainerless Duo Wafer Check
(OP)
How is this design different from regular wafer check and what are High performance Duo wafer check?
Please help!
Please help!
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Retainerless Duo Wafer Check
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Retainerless Duo Wafer CheckRetainerless Duo Wafer Check(OP)
How is this design different from regular wafer check and what are High performance Duo wafer check?
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RE: Retainerless Duo Wafer Check
Here's a link to an image of a duo check:
htt
Here's a link to an image of a "standard" wafer check:
http:
Most wafer checks nowadays are duo style.
Heather Smith
My interests: Alloy valves, duplex valves, super duplex valves, 6Moly valves, inconel valves, incoloy valves, alloy 20 valves and titanium valves.
RE: Retainerless Duo Wafer Check
What makes a duo wafer check a High performance Duo wafer check?
RE: Retainerless Duo Wafer Check
A recent thread in this forum discuss what a high performance BFL valve is thread408-266485: what is high performance type for butterfly valve?
This might be relevant.
Without retainer indicates perhaps a direct metal to metal sealing with direct contact, again the definitions for HP butterfly valves might be significant.
The above said, i must admit that I have never seen this descriptin in connection with a check valve.
On the other hand it is quite common that the description for a check valves leans towards somthing used in 'an almost similar' , but older/previous solution, without adeqatly giving the necessary fluid and operation parameters necessary to dimension and select the optimum type: eg.: correct dimension, type, placement etc. necessary to avoid pressure peaks and slamming or gulping operation, partially open valve, minimum pressure loss and soft opening and closing.
The correct solution in you case might be a metal to metal seated disc check valve, for instant of type gestra disco: http:
RE: Retainerless Duo Wafer Check
It is a design that allows all internals to be assembled from the downstream side without any potential leak pass to the athmosphere.
Have a look at www.checkvalves.co.uk