High Flow Double Check Valves

[Marc Bowers]

Hi all, I’ve a customer with a failed double check valve on a water softener, it’s 22mm compression but with a far larger bore than the usual DCV’s you see online. Anyone know if they are called something different or where I can get one? I’ve even been on the water softener website and they don’t seem to sell them. Ta.

 

[ShaunCorbs]

You sure it’s not a 28mm dcv threaded end eg 1”-22mm male irons

 

[Marc Bowers]

You sure it’s not a 28mm dcv threaded end eg 1”-22mm male irons

You sure it’s not a 28mm dcv threaded end eg 1”-22mm male irons

Yep, I took it out to check it, definitely no CMI’s. But that is a useful thought as a replacement.

 

[ShaunCorbs]

That’s what I normally do

Another option is a swing check valve have to be installed horizontally tho

 

[Devisham]

Is it the attached per chance?

 

[Marc Bowers]

Is it the attached per chance?

It’s not, but that’s the first one I’ve seen rated as high flow. What’s the web address?

 

[Marc Bowers]

That’s what I normally do

Another option is a swing check valve have to be installed horizontally tho

Horizontal not an option without major work in a (as always) tight space.

 

[Devisham]

It’s not, but that’s the first one I’ve seen rated as high flow. What’s the web address?

It's an RWC branded valve.

Jet do the attached variant too.

 

[Sarafailsbetter]

Dear Marc, how did you identify the failed double check valve on a water softener? The inlet to our Harvey's softener has been making a clunking noise intermittently for 5 days now. Could it be the same problem as yours? Thanks so much for reply Sara

 

[Marc Bowers]

Dear Marc, how did you identify the failed double check valve on a water softener? The inlet to our Harvey's softener has been making a clunking noise intermittently for 5 days now. Could it be the same problem as yours? Thanks so much for reply Sara

My problem was flow rate. A clunking noise is usually water hammer and can have a number of sources (not necessarily in the area of the noise)