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check valve
A check valve, non-return valve, reflux valve, retention valve, foot valve, or one-way valve is a valve that normally allows fluid (liquid or gas) to flow through it in only one direction.Check valves are two-port valves, meaning they have two openings in the body, one for fluid to enter and the other for fluid to leave. There are various types of check valves used in a wide variety of applications. Check valves are often part of common household items. Although they are available in a wide range of sizes and costs, check valves generally are very small, simple, and inexpensive. Check valves work automatically and most are not controlled by a person or any external control; accordingly, most do not have any valve handle or stem. The bodies (external shells) of most check valves are made of plastic or metal.
An important concept in check valves is the cracking pressure which is the minimum differential upstream pressure between inlet and outlet at which the valve will operate. Typically the check valve is designed for and can therefore be specified for a specific cracking pressure.
Anyone know how to stop the pressure from going up and then going to lock out on this potterton powermax HE boiler? It has a error message of E 0.1
Any suggestions grateful.
The pressure gauge cuts out at 4.
Steve100
Thread
bar
boiler
checkvalve
cold
error
expansion
expansion vessel
filling loop
help
high
install
oil
pipe
potterton
powermax
pressure
problem
problems
system
valve
vessel
work
I have a house in France with no mains whatsoever. Water comes from a 10 metres deep borehole, pump at the bottom, pressure vessel at the top, all installed new a year ago but I haven't been able to contact the installer because my agent in France is on holiday and I don't have the details...
pryder747
Thread
air
appliance
bar
checkvalve
guage
installation
mains
parts
power
pressure
pressurised
problem
pump
rules
supply
switch
system
valve
vessel
water
winter
I'm fitting an outside tap, the pipe i'm cutting into is painted, would i need to replace part of the pipe put a compression fitting onto the pianted pipe so I can solder the fittings, or is there an easier way?
iluvit
Thread
bits
checkvalve
combi
fitting
green
inside
outside
outside tap
paint
pan
pipe
stopcock
tap
taps
valvevalves
water
I am having a problem with a Baxi system 35/60 and would appreciate some help.Flow switch spindle does not always come out fully to make the microswitch.This only happens when the boiler has been off overnight and tries to start at 7am.
Changed the rubber diaphgram, chaneged the pump as it was...
Malty
Thread
baxi
baxi system
boiler
central
central heating system
checkvalve
cleaning
filter
flow
head
high
pressure
problem
pump
rubber
switch
system
valvevalves
Hi to Everyone on the forum. I only discovered it today and joined immediately, it looks very impressive!
I am having a problem with a Baxi system 35/60 and would appreciate some help.Flow switch spindle does not always come out fully to make the microswitch.This only happens when the boiler has...
Malty
Thread
baxi
baxi system
boiler
central
central heating system
checkvalve
flow
gas
hello
help
inside
plumbers
plumbing
problem
pump
rubber
switch
system
valve
Hi,
I am hoping someone on here can help.
I must confess that i am relatively new to plumbing so hopefully this won't come across as a completely stupid DIYer question.
My parents have an outside tap fitted and they turn it off each winter to prevent freezing. Well it has come to that time...
swellybro
Thread
brass
building
checkvalve
head
heating
hose
inside
kitchen
mains
outside tap
pipe
plumber
plumbers
plumbing
remove
stopcock
tap
valvevalves
water
which
work
Hi there - my first post on this site.
Potentially a bit of a funny question, but I want to fit an outside tap to the front of a terraced house. Problem is, all of the existing pipework that is exposed is at the rear of the house, and the whole ground floor has just had expensive oak flooring...
9wizard9
Thread
branch
cheap
checkvalve
connect
copper
difficult
flow
free
hello
hello!
house
inside
loft
mains
outside
outside tap
pipe
piping
problem
supply
supply pipe
tap
tee
valve
water
water meter
winter
work
Help needed..getting peed off with garden tap.
Water will only dribble out of the outside tap, tried a new tap still the same. Its a new house all pipes etc should be fine.
Checked isolation valve that works, there is water getting to the double check valve thats okay, it seem to be between...
farmeben
Thread
building
cheap
checkvalve
cold
cold weather
damage
garden
garden tap
help needed
high
inside
insulation
not working
outside
outside tap
pipe
pipes
pressure
problem
supply
supply pipe
tap
valve
washer
water
winter
work
working
Had a plumber around to connect loft shower and basin. Since then I have had no hot water (tepid ). He states that he has not touched the boiler and that it maybe the thermostat has gone. A friend suggested that the pressure may need to be looked at. Any suggestions please as the loft conversion...
carriesue
Thread
basin
boiler
central heating system
checkvalve
cold
cold water
connect
flow
hot
hot water
kitchen
loft
metal
no hot water
oil
plumber
pressure
problem
rer
shower
system
taps
towel rail
valve
water
worcester
worcester boiler
I have an open vented CH system.
I've just had a new boiler, pump, electronic controls & room stat fitted. It's not been the best experience I've had.
Now the work is complete, I've noticed that the 15mm piped cold feed into the CH system gets hot from time to time.
Not sure how high up...
burnssj
Thread
boiler
central heating system
checkvalve
circulation
cold
cold feed
electronic
expansion
flow
getting
high
hot
hot water
loft
open vented
pipe
problem
pump
radiator
system
tank
valve
water
work
Hi all, first post on the forum, appreciate all your help and advice, so many thanks in advance gents... and lasses!
About to fit an external bib tap outside my Kitchen tomorrow but am a little confused/concerned about the wall plate elbow I have been provided with...
You see the water inlet...
MrBusagain
Thread
bits
checkvalve
cold
copper
diy
external
google
inside
mains
outside tap
pressure
project
regulations
replacement
screw
store
tap
taps
valvevalves
wall
water
water pressure
winter
Hi to everybody, it's my first time writing to this forum and I need some help please-bit of an odd one but I'm sure someone out there knows the answer!! We have a Worcester 24i and all was well until a friend who's a plumber fixed a dripping shower (on 2rd floor, terrace house-boiler feeds...
Rob Sutherland
Thread
airlock
bathroom
boiler
checkvalve
cold
filter
fix
flow
hot
hot water
inside
job
mains
noise
pipe
plumber
pressure
pump
shower
showers
stuck
supply
toilet
valve
water
worcester
My bathroom sink hot tap has just started making a thunking noise when it gets turned on. The cold taps in the house are also making a loud noise, also when other hot taps are turned on in the house the bathroom tap comes on by itself. What is the problem, please?
rosyegg
Thread
basin
bathroom
checkvalve
cold
hammer
hot
mixer
noise
plumber
pressure
problem
replacement
sink
tap
taps
valve
water
Hi fellas,first post here..so here goes.
went to a vokera linea which is losing pressure quite bad last night, about 1 bar in 4mins!! did usual checks looking for leaks,open drain offs,checking prv pipe without finding anything. the woman said it's only just started to happen so i'm thinking the...
bar
boiler
ceiling
central heating system
checkvalve
cold
concrete
drain
expansion
filling loop
hose
law
leak
linea
losing
mains
pipe
pressure
problem
remove
system
under floorboards
valve
vessel
vokera
vokera linea 28
water
I have been asked to fit a shower for a customer. He wants a pumped unit fitted to his new en-suite.
My query concerns his solar panel heating, I've been looking and asking about the syatem he has installed.
He has a conventional single coil vented hot water cylinder fed by his boiler primaries...
22mm
boiler
central heating system
checkvalve
cold
cylinder
difficult
feeds
flange
flow
hot
hot water
hot water cylinder
panel
pipe
piping
remove
shower
solar
tee
valve
water
Until we has an irrigation system installed in September, we never had any disturbing sounds from our plumbing in the house we've lived in for 11 years. Since we put in the irrigation we get a periodic groaning sound from the pipes -- it sounds like a fog horn; loud and continuous (not pulsing)...
JonLondon
Thread
checkvalve
copper
flow
flush
hammer
high
inside
london
no water
noise
pipe
pipes
plumbing
pressure
put
since
sound
tap
taps
travel
valvevalves
vibration
wall
water
work
Hi everyone,
has anyone ever come across these? a friend of mine has asked me to install one along with a three way tap. I have some basic plumbing knowledge, but have never installed one before, they have no documentation for it but from what I can find out from PUREPRO website it is usually...
sengaul
Thread
cartridge
checkvalve
filter
install
kitchen
plumbing
price
pro
tap
taps
valve
website
Hi, another question on my new boiler. When the hot water tap is turned on, as soon as the hot water starts coming out there is a very strong chemically smell to the water (and it also tastes bad). The small lasts for about 10 seconds, then is not very noticeable. It does not smell of...
Woody2244
Thread
boiler
central
central heating system
checkvalve
chemicals
cold
filling loop
gas
gas safe
hot
hot water
new boiler
oil
pipes
problem
remove
rubber
safe
smell
smells
tap
vaillant
valve
water
water tap