Product Reviews

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22mm compression connection. 5-wire installation. Interchangeable with other makes. Approved to IEC 730-2-8.

22mm compression connection. 5-wire installation. Interchangeable with other makes. Approved to IEC 730-2-8.
Average Customer Rating:
2.546 out of 5
2.5
 out of 
5
(11 Reviews) 11
Open Ratings Snapshot
Rating Snapshot (11 reviews)
5 stars
2
4 stars
1
3 stars
2
2 stars
2
1 star
4
4 of 11(36%)reviewers would recommend this product.
Customer Reviews for Siemens CMV322 3 Port Mid Valve
Review 1 for Siemens CMV322 3 Port Mid Valve
Overall Rating: 
5 out of 5
5 out of 5
Value: 
4 out of 5
4 out of 5
Features: 
4 out of 5
4 out of 5
Performance: 
5 out of 5
5 out of 5
Reliability: 
5 out of 5
5 out of 5
Would you recommend this product? Yes
Overall Rating: 
5 out of 5
5 out of 5
Value: 
4 out of 5
4 out of 5
Features: 
4 out of 5
4 out of 5
Performance: 
5 out of 5
5 out of 5
Reliability: 
5 out of 5
5 out of 5
reliable valve
5 Apr 2013
By anotherjob
, York
"I have just replaced a Siemens 3 port valve, not because it was faulty but because it is 16 years old, it has never failed but I am overhauling my central heating system so I have replaced it with another Siemens 3 port valve because of the reliability of them. It was easy to change and connect. No problems."
Review 2 for Siemens CMV322 3 Port Mid Valve
Overall Rating: 
5 out of 5
5 out of 5
Value: 
5 out of 5
5 out of 5
Features: 
4 out of 5
4 out of 5
Performance: 
5 out of 5
5 out of 5
Reliability: 
5 out of 5
5 out of 5
Would you recommend this product? Yes
Overall Rating: 
5 out of 5
5 out of 5
Value: 
5 out of 5
5 out of 5
Features: 
4 out of 5
4 out of 5
Performance: 
5 out of 5
5 out of 5
Reliability: 
5 out of 5
5 out of 5
3 Port Valve
17 Oct 2008
By Warnesy
, High Wycombe
"Needed a replacement for a defunct Danfoss equivalent but did not want to change pipework, gues what, I didn't have too, excellent, but, I did have to connect one extra (Earth) wire, so overall it was a good buy, recommended."
3 of 3 people found this review helpful.
Review 3 for Siemens CMV322 3 Port Mid Valve
Overall Rating: 
4 out of 5
4 out of 5
Value: 
5 out of 5
5 out of 5
Features: 
5 out of 5
5 out of 5
Performance: 
4 out of 5
4 out of 5
Reliability: 
5 out of 5
5 out of 5
Would you recommend this product? Yes
Overall Rating: 
4 out of 5
4 out of 5
Value: 
5 out of 5
5 out of 5
Features: 
5 out of 5
5 out of 5
Performance: 
4 out of 5
4 out of 5
Reliability: 
5 out of 5
5 out of 5
Mid Position Valve
13 Nov 2011
By BarneyBates
, Dagenham
"Reasonably priced compared to others, easy to fit and does what it says on the tin!"
0 of 1 people found this review helpful.
Review 4 for Siemens CMV322 3 Port Mid Valve
Overall Rating: 
3 out of 5
3 out of 5
Value: 
4 out of 5
4 out of 5
Features: 
3 out of 5
3 out of 5
Performance: 
3 out of 5
3 out of 5
Reliability: 
1 out of 5
1 out of 5
Would you recommend this product? No
Overall Rating: 
3 out of 5
3 out of 5
Value: 
4 out of 5
4 out of 5
Features: 
3 out of 5
3 out of 5
Performance: 
3 out of 5
3 out of 5
Reliability: 
1 out of 5
1 out of 5
Long-term reliability dubious
28 Jan 2013
By ImNotAnExpertBut
, Camberley
"I've just had to replace a Siemens 3-way valve that was fitted 8½ years ago. The mechanism was worn out so that the valve wasn't going to the heating only position properly, resulting in the hot water always being heated up when the central heating was on.
Of course it's possible that they've changed the design in that time, but I suspect you get what you pay for. There's got to be some reason these are cheaper than the other makes."
0 of 1 people found this review helpful.
Review 5 for Siemens CMV322 3 Port Mid Valve
Overall Rating: 
3 out of 5
3 out of 5
Value: 
5 out of 5
5 out of 5
Features: 
3 out of 5
3 out of 5
Performance: 
3 out of 5
3 out of 5
Reliability: 
3 out of 5
3 out of 5
Would you recommend this product? Yes
Overall Rating: 
3 out of 5
3 out of 5
Value: 
5 out of 5
5 out of 5
Features: 
3 out of 5
3 out of 5
Performance: 
3 out of 5
3 out of 5
Reliability: 
3 out of 5
3 out of 5
Ok so far
11 Dec 2011
By LozPlusSomeCharsLettersNu
, Winchester
"Having read some of the other reviews, I was reluctant to go for this item. I did, because I can't resist a bargain.
Fitting the valve was straightforward and the actuator wiring was exactly the same as the Drayton version it replaced.
So far all is well, i.e. operation with just Hot Water, Just Heating or both is working fine.
Only time will tell if there is a reliability issue as mentioned by others.
"
1 of 1 people found this review helpful.
Review 6 for Siemens CMV322 3 Port Mid Valve
Overall Rating: 
2 out of 5
2 out of 5
Value: 
3 out of 5
3 out of 5
Features: 
3 out of 5
3 out of 5
Performance: 
3 out of 5
3 out of 5
Reliability: 
2 out of 5
2 out of 5
Would you recommend this product? No
Overall Rating: 
2 out of 5
2 out of 5
Value: 
3 out of 5
3 out of 5
Features: 
3 out of 5
3 out of 5
Performance: 
3 out of 5
3 out of 5
Reliability: 
2 out of 5
2 out of 5
Early life failure
15 May 2013
By IanBgas
, St Albans
"I fitted a new CMV322 in February, replacing a Siemens valve (without detachable actuator) that had served well for over 20 years. Unfortunately, the new actuator failed within a few weeks. I have hopes for its replacement, but for obvious reasons, can't rate it highly or recommend it, even though this may have been an unusual case. Screwfix replaced the unit without quibble."
Review 7 for Siemens CMV322 3 Port Mid Valve
Overall Rating: 
2 out of 5
2 out of 5
Value: 
1 out of 5
1 out of 5
Features: 
4 out of 5
4 out of 5
Performance: 
1 out of 5
1 out of 5
Reliability: 
2 out of 5
2 out of 5
Would you recommend this product? No
Overall Rating: 
2 out of 5
2 out of 5
Value: 
1 out of 5
1 out of 5
Features: 
4 out of 5
4 out of 5
Performance: 
1 out of 5
1 out of 5
Reliability: 
2 out of 5
2 out of 5
Long term reliability poor
11 Apr 2013
By chris202
, Bucks
"Fitted the valve approx 2 1/2 years ago and as someone else has said, the heating only side has mechanically seized.
Disappointing for Siemens.
Now going to spend twice the amount on the Honeywell (may be there is a reason why it is twice the price)."
Review 8 for Siemens CMV322 3 Port Mid Valve
Overall Rating: 
1 out of 5
1 out of 5
Value: 
1 out of 5
1 out of 5
Features: 
1 out of 5
1 out of 5
Performance: 
1 out of 5
1 out of 5
Reliability: 
1 out of 5
1 out of 5
Would you recommend this product? No
Overall Rating: 
1 out of 5
1 out of 5
Value: 
1 out of 5
1 out of 5
Features: 
1 out of 5
1 out of 5
Performance: 
1 out of 5
1 out of 5
Reliability: 
1 out of 5
1 out of 5
Siemens 3-port valve
25 May 2012
By jeffelec
, Kent
"Wouldn't buy a Siemens valve again, total rubbish!!
Failure of 1st unit after approx 6-weeks, 2nd unit had the same fault straight out of the box!!
Valve head mechanism jams in the in the heating position & doesn't spring return.
Will have to drain the system again at my cost to fit a good old Honeywell unit because the valve bodies are different."
2 of 2 people found this review helpful.
Review 9 for Siemens CMV322 3 Port Mid Valve
Overall Rating: 
1 out of 5
1 out of 5
Value: 
1 out of 5
1 out of 5
Features: 
2 out of 5
2 out of 5
Performance: 
1 out of 5
1 out of 5
Reliability: 
1 out of 5
1 out of 5
Would you recommend this product? No
Overall Rating: 
1 out of 5
1 out of 5
Value: 
1 out of 5
1 out of 5
Features: 
2 out of 5
2 out of 5
Performance: 
1 out of 5
1 out of 5
Reliability: 
1 out of 5
1 out of 5
Another valve not working
13 Oct 2011
By arty2
, London
"The 3 way valve might be on special offer but do not be persuaded. Screwfix didn't have my preferred choice so I selected the Siemen's unit ( good brand name) and lived to regret it. The unit didn't work properly because the detachable actuator setting was not and could not be aligned to the valve settings. Reading the other reviews this is not a one off and could be a batch issue so avoid as it cost me half a day."
1 of 1 people found this review helpful.
Review 10 for Siemens CMV322 3 Port Mid Valve
Overall Rating: 
1 out of 5
1 out of 5
Value: 
2 out of 5
2 out of 5
Features: 
1 out of 5
1 out of 5
Performance: 
1 out of 5
1 out of 5
Reliability: 
1 out of 5
1 out of 5
Would you recommend this product? No
Overall Rating: 
1 out of 5
1 out of 5
Value: 
2 out of 5
2 out of 5
Features: 
1 out of 5
1 out of 5
Performance: 
1 out of 5
1 out of 5
Reliability: 
1 out of 5
1 out of 5
three port valves
8 Nov 2010
By Blays
, leeds
"Ive had so much trouble with siemens 3 port valves , after the third attempt i called it a day and fit a Hooneywell one . I wont ever fit a siemens 3 port again , there just rubbish."
1 of 2 people found this review helpful.
Review 11 for Siemens CMV322 3 Port Mid Valve
Overall Rating: 
1 out of 5
1 out of 5
Value: 
3 out of 5
3 out of 5
Features: 
1 out of 5
1 out of 5
Performance: 
1 out of 5
1 out of 5
Reliability: 
1 out of 5
1 out of 5
Would you recommend this product? No
Overall Rating: 
1 out of 5
1 out of 5
Value: 
3 out of 5
3 out of 5
Features: 
1 out of 5
1 out of 5
Performance: 
1 out of 5
1 out of 5
Reliability: 
1 out of 5
1 out of 5
3 port valve
15 Nov 2009
By S36plumber
, Sheffield
"Easy to fit but once on it broke so needed replacing straight away. Replaced with a Honeywell!! Won't make the same mistake again!"