Low cost water valve? Where to buy...
Archiver
Posts: 46,084
I want to build a 'dancing fountian' where the stamp turns water jets
on and off in time to music or just in interesting sequences.
The code and electronics are simple but the water valves get spendy.
Has anyone found cheap solenid valves?
I've thought about inground sprinkler valves but they are kinda slow
TIA
on and off in time to music or just in interesting sequences.
The code and electronics are simple but the water valves get spendy.
Has anyone found cheap solenid valves?
I've thought about inground sprinkler valves but they are kinda slow
TIA
Comments
shoot the water. In your case you may be able to live with cheap
homemade leaky valves,,,valves are expensive due to thier
reliablility and sealing capacity,,but you don't quite need all that.
For example,,,Toilet float/lever valves seal against city pressure,
about 30psi,,,you could take a cheap soleniod by itself and
mechanically hook it up to the lever of the toiled valve,,,using the
a cheap solenoid that does not have much force action in conjunction
with a lever arm ,,may produce the action you want for a cheap
price,,,but the valve assembly may be leaky,,but that should not
bother you if all this is in a pool....
Ray
--- In basicstamps@y..., "kvasilak" <my427v8@h...> wrote:
> I want to build a 'dancing fountian' where the stamp turns water
jets
> on and off in time to music or just in interesting sequences.
>
> The code and electronics are simple but the water valves get spendy.
>
>
> Has anyone found cheap solenid valves?
> I've thought about inground sprinkler valves but they are kinda slow
>
> TIA
couple of solenoid valves to control a hydrolysis chamber which collected
H / O in separate chambers, then ignited them. If you find extremely
cheap valves, I'd be pretty interested, since I've had interest for a
while in microprocessor-controlled LP burns.
On Tue, 26 Nov 2002, kvasilak wrote:
> I want to build a 'dancing fountian' where the stamp turns water jets
> on and off in time to music or just in interesting sequences.
>
> The code and electronics are simple but the water valves get spendy.
>
>
> Has anyone found cheap solenid valves?
> I've thought about inground sprinkler valves but they are kinda slow
>
> TIA
>
>
> To UNSUBSCRIBE, just send mail to:
> basicstamps-unsubscribe@yahoogroups.com
> from the same email address that you subscribed. Text in the Subject and Body
of the message will be ignored.
>
>
> Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
>
>
>
Sean T. Lamont, Chief Mad Scientist |-- lamont@a...
Zen Chemical Productions |-- http://www.zenchemical.com
Fabricators of Unnecessary Amazement
Closed
Original Message
From: "Sean T. Lamont .lost." <lamont@a...>
To: <basicstamps@yahoogroups.com>
Sent: Monday, November 25, 2002 9:22 PM
Subject: Re: [noparse][[/noparse]basicstamps] Low cost water valve? Where to buy...
>
> How cheap? I've found $80 valves ; I helped a frieind use the BS2 and a
> couple of solenoid valves to control a hydrolysis chamber which collected
> H / O in separate chambers, then ignited them. If you find extremely
> cheap valves, I'd be pretty interested, since I've had interest for a
> while in microprocessor-controlled LP burns.
>
>
> On Tue, 26 Nov 2002, kvasilak wrote:
>
> > I want to build a 'dancing fountian' where the stamp turns water jets
> > on and off in time to music or just in interesting sequences.
> >
> > The code and electronics are simple but the water valves get spendy.
> >
> >
> > Has anyone found cheap solenid valves?
> > I've thought about inground sprinkler valves but they are kinda slow
> >
> > TIA
> >
> >
> > To UNSUBSCRIBE, just send mail to:
> > basicstamps-unsubscribe@yahoogroups.com
> > from the same email address that you subscribed. Text in the Subject
and Body of the message will be ignored.
> >
> >
> > Your use of Yahoo! Groups is subject to
http://docs.yahoo.com/info/terms/
> >
> >
> >
>
> Sean T. Lamont, Chief Mad Scientist |-- lamont@a...
> Zen Chemical Productions |-- http://www.zenchemical.com
> Fabricators of Unnecessary Amazement
>
>
>
>
> To UNSUBSCRIBE, just send mail to:
> basicstamps-unsubscribe@yahoogroups.com
> from the same email address that you subscribed. Text in the Subject and
Body of the message will be ignored.
>
>
> Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
>
>
>
easily obtainable from plumbing suppliers. They last for years.
However you need to power mains to the unit - so that usually involves a
seperate main relay.
Whatever you use, don't forget you need semething (like a power FET) to
switch the solenoid and a relay to protect the semiconductor from the back
emf when you switch.
There are lots of postings here regarding switching relays and solenoids
Regards,
Tony Wells
Original Message
From: "kvasilak" <my427v8@h...>
To: <basicstamps@yahoogroups.com>
Sent: Tuesday, November 26, 2002 2:58 AM
Subject: [noparse][[/noparse]basicstamps] Low cost water valve? Where to buy...
> I want to build a 'dancing fountian' where the stamp turns water jets
> on and off in time to music or just in interesting sequences.
>
> The code and electronics are simple but the water valves get spendy.
>
>
> Has anyone found cheap solenid valves?
> I've thought about inground sprinkler valves but they are kinda slow
>
> TIA
>
>
> To UNSUBSCRIBE, just send mail to:
> basicstamps-unsubscribe@yahoogroups.com
> from the same email address that you subscribed. Text in the Subject and
Body of the message will be ignored.
>
>
> Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
>
>
>
scrap automatic washing machines.
Someone on the list might have an old washing machine in their back yard
they can send you...
Be carefull with electricity and water - they don't mix well!
Regards,
Tony
Original Message
From: <tony.wells@a...>
To: <basicstamps@yahoogroups.com>
Sent: Tuesday, November 26, 2002 2:34 PM
Subject: Re: [noparse][[/noparse]basicstamps] Low cost water valve? Where to buy...
> I've used central heating hot water valves for this job. They are cheap
and
> easily obtainable from plumbing suppliers. They last for years.
>
> However you need to power mains to the unit - so that usually involves a
> seperate main relay.
>
> Whatever you use, don't forget you need semething (like a power FET) to
> switch the solenoid and a relay to protect the semiconductor from the back
> emf when you switch.
>
> There are lots of postings here regarding switching relays and solenoids
>
> Regards,
>
> Tony Wells
>
>
Original Message
> From: "kvasilak" <my427v8@h...>
> To: <basicstamps@yahoogroups.com>
> Sent: Tuesday, November 26, 2002 2:58 AM
> Subject: [noparse][[/noparse]basicstamps] Low cost water valve? Where to buy...
>
>
> > I want to build a 'dancing fountian' where the stamp turns water jets
> > on and off in time to music or just in interesting sequences.
> >
> > The code and electronics are simple but the water valves get spendy.
> >
> >
> > Has anyone found cheap solenid valves?
> > I've thought about inground sprinkler valves but they are kinda slow
> >
> > TIA
> >
> >
> > To UNSUBSCRIBE, just send mail to:
> > basicstamps-unsubscribe@yahoogroups.com
> > from the same email address that you subscribed. Text in the Subject
and
> Body of the message will be ignored.
> >
> >
> > Your use of Yahoo! Groups is subject to
http://docs.yahoo.com/info/terms/
> >
> >
> >
>
http://sales.goldmine-elec.com/prodinfo.asp?prodid=3051
Jason
--- In basicstamps@y..., "Greg Reyneke" <greg@i...> wrote:
> ASCO makes a good line of solenoid valves, the 8210G2 is 1/2" NPT
Normally
> Closed
>
>
Original Message
> From: "Sean T. Lamont .lost." <lamont@a...>
> To: <basicstamps@y...>
> Sent: Monday, November 25, 2002 9:22 PM
> Subject: Re: [noparse][[/noparse]basicstamps] Low cost water valve? Where to buy...
>
>
> >
> > How cheap? I've found $80 valves ; I helped a frieind use the BS2
and a
> > couple of solenoid valves to control a hydrolysis chamber which
collected
> > H / O in separate chambers, then ignited them. If you find
extremely
> > cheap valves, I'd be pretty interested, since I've had interest
for a
> > while in microprocessor-controlled LP burns.
> >
> >
> > On Tue, 26 Nov 2002, kvasilak wrote:
> >
> > > I want to build a 'dancing fountian' where the stamp turns
water jets
> > > on and off in time to music or just in interesting sequences.
> > >
> > > The code and electronics are simple but the water valves get
spendy.
> > >
> > >
> > > Has anyone found cheap solenid valves?
> > > I've thought about inground sprinkler valves but they are kinda
slow
> > >
> > > TIA
> > >
> > >
> > > To UNSUBSCRIBE, just send mail to:
> > > basicstamps-unsubscribe@y...
> > > from the same email address that you subscribed. Text in the
Subject
> and Body of the message will be ignored.
> > >
> > >
> > > Your use of Yahoo! Groups is subject to
> http://docs.yahoo.com/info/terms/
> > >
> > >
> > >
> >
> > Sean T. Lamont, Chief Mad Scientist |-- lamont@a...
> > Zen Chemical Productions |--
http://www.zenchemical.com
> > Fabricators of Unnecessary Amazement
> >
> >
> >
> >
> > To UNSUBSCRIBE, just send mail to:
> > basicstamps-unsubscribe@y...
> > from the same email address that you subscribed. Text in the
Subject and
> Body of the message will be ignored.
> >
> >
> > Your use of Yahoo! Groups is subject to
http://docs.yahoo.com/info/terms/
> >
> >
> >
Both are pretty good and are available in DC or AC versions.
http://www.mcmaster.com/ Goto page process control then solenoid valves then
page 375. Grainger also has some for $60 or so.
Original Message
From: Sean T. Lamont .lost.
To: basicstamps@yahoogroups.com
Sent: Monday, November 25, 2002 8:22 PM
Subject: Re: [noparse][[/noparse]basicstamps] Low cost water valve? Where to buy...
How cheap? I've found $80 valves ; I helped a frieind use the BS2 and a
couple of solenoid valves to control a hydrolysis chamber which collected
H / O in separate chambers, then ignited them. If you find extremely
cheap valves, I'd be pretty interested, since I've had interest for a
while in microprocessor-controlled LP burns.
On Tue, 26 Nov 2002, kvasilak wrote:
> I want to build a 'dancing fountian' where the stamp turns water jets
> on and off in time to music or just in interesting sequences.
>
> The code and electronics are simple but the water valves get spendy.
>
>
> Has anyone found cheap solenid valves?
> I've thought about inground sprinkler valves but they are kinda slow
>
> TIA
>
>
> To UNSUBSCRIBE, just send mail to:
> basicstamps-unsubscribe@yahoogroups.com
> from the same email address that you subscribed. Text in the Subject and
Body of the message will be ignored.
>
>
> Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
>
>
>
Sean T. Lamont, Chief Mad Scientist |-- lamont@a...
Zen Chemical Productions |-- http://www.zenchemical.com
Fabricators of Unnecessary Amazement
To UNSUBSCRIBE, just send mail to:
basicstamps-unsubscribe@yahoogroups.com
from the same email address that you subscribed. Text in the Subject and Body
of the message will be ignored.
Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
[noparse][[/noparse]Non-text portions of this message have been removed]
tony.wells@a... wrote:Oh, I also forgot, you can also recover a used
water cut-off solenoid from
scrap automatic washing machines.
Someone on the list might have an old washing machine in their back yard
they can send you...
Be carefull with electricity and water - they don't mix well!
Regards,
Tony
Original Message
From:
To:
Sent: Tuesday, November 26, 2002 2:34 PM
Subject: Re: [noparse][[/noparse]basicstamps] Low cost water valve? Where to buy...
> I've used central heating hot water valves for this job. They are cheap
and
> easily obtainable from plumbing suppliers. They last for years.
>
> However you need to power mains to the unit - so that usually involves a
> seperate main relay.
>
> Whatever you use, don't forget you need semething (like a power FET) to
> switch the solenoid and a relay to protect the semiconductor from the back
> emf when you switch.
>
> There are lots of postings here regarding switching relays and solenoids
>
> Regards,
>
> Tony Wells
>
>
Original Message
> From: "kvasilak"
> To:
> Sent: Tuesday, November 26, 2002 2:58 AM
> Subject: [noparse][[/noparse]basicstamps] Low cost water valve? Where to buy...
>
>
> > I want to build a 'dancing fountian' where the stamp turns water jets
> > on and off in time to music or just in interesting sequences.
> >
> > The code and electronics are simple but the water valves get spendy.
> >
> >
> > Has anyone found cheap solenid valves?
> > I've thought about inground sprinkler valves but they are kinda slow
> >
> > TIA
> >
> >
> > To UNSUBSCRIBE, just send mail to:
> > basicstamps-unsubscribe@yahoogroups.com
> > from the same email address that you subscribed. Text in the Subject
and
> Body of the message will be ignored.
> >
> >
> > Your use of Yahoo! Groups is subject to
http://docs.yahoo.com/info/terms/
> >
> >
> >
>
To UNSUBSCRIBE, just send mail to:
basicstamps-unsubscribe@yahoogroups.com
from the same email address that you subscribed. Text in the Subject and Body of
the message will be ignored.
Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
Do you Yahoo!?
Yahoo! Mail Plus - Powerful. Affordable. Sign up now
[noparse][[/noparse]Non-text portions of this message have been removed]
Electronic gold mine is new to me and the washer valve idea is gotta
be cheap...
--- In basicstamps@y..., noah ioop <ioopn@y...> wrote:
>
> Try you local Appliance part store for a dish washer's valve.
> tony.wells@a... wrote:Oh, I also forgot, you can also recover a
used water cut-off solenoid from
> scrap automatic washing machines.
>
> Someone on the list might have an old washing machine in their back
yard
> they can send you...
>
> Be carefull with electricity and water - they don't mix well!
>
> Regards,
>
> Tony
>
Original Message
> From:
> To:
> Sent: Tuesday, November 26, 2002 2:34 PM
> Subject: Re: [noparse][[/noparse]basicstamps] Low cost water valve? Where to buy...
>
>
> > I've used central heating hot water valves for this job. They are
cheap
> and
> > easily obtainable from plumbing suppliers. They last for years.
> >
> > However you need to power mains to the unit - so that usually
involves a
> > seperate main relay.
> >
> > Whatever you use, don't forget you need semething (like a power
FET) to
> > switch the solenoid and a relay to protect the semiconductor from
the back
> > emf when you switch.
> >
> > There are lots of postings here regarding switching relays and
solenoids
> >
> > Regards,
> >
> > Tony Wells
> >
> >
Original Message
> > From: "kvasilak"
> > To:
> > Sent: Tuesday, November 26, 2002 2:58 AM
> > Subject: [noparse][[/noparse]basicstamps] Low cost water valve? Where to buy...
> >
> >
> > > I want to build a 'dancing fountian' where the stamp turns
water jets
> > > on and off in time to music or just in interesting sequences.
> > >
> > > The code and electronics are simple but the water valves get
spendy.
> > >
> > >
> > > Has anyone found cheap solenid valves?
> > > I've thought about inground sprinkler valves but they are kinda
slow
> > >
> > > TIA
> > >
> > >
> > > To UNSUBSCRIBE, just send mail to:
> > > basicstamps-unsubscribe@y...
> > > from the same email address that you subscribed. Text in the
Subject
> and
> > Body of the message will be ignored.
> > >
> > >
> > > Your use of Yahoo! Groups is subject to
> http://docs.yahoo.com/info/terms/
> > >
> > >
> > >
> >
>
>
> To UNSUBSCRIBE, just send mail to:
> basicstamps-unsubscribe@y...
> from the same email address that you subscribed. Text in the
Subject and Body of the message will be ignored.
>
>
> Your use of Yahoo! Groups is subject to
http://docs.yahoo.com/info/terms/
>
>
>
>
>
> Do you Yahoo!?
> Yahoo! Mail Plus - Powerful. Affordable. Sign up now
>
> [noparse][[/noparse]Non-text portions of this message have been removed]
relay and a stamp on the +5 control voltage. Have I done a bad thing?
On Tue, 26 Nov 2002, tony.wells@a... wrote:
> I've used central heating hot water valves for this job. They are cheap and
> easily obtainable from plumbing suppliers. They last for years.
>
> However you need to power mains to the unit - so that usually involves a
> seperate main relay.
>
> Whatever you use, don't forget you need semething (like a power FET) to
> switch the solenoid and a relay to protect the semiconductor from the back
> emf when you switch.
>
> There are lots of postings here regarding switching relays and solenoids
>
> Regards,
>
> Tony Wells
>
>
Original Message
> From: "kvasilak" <my427v8@h...>
> To: <basicstamps@yahoogroups.com>
> Sent: Tuesday, November 26, 2002 2:58 AM
> Subject: [noparse][[/noparse]basicstamps] Low cost water valve? Where to buy...
>
>
> > I want to build a 'dancing fountian' where the stamp turns water jets
> > on and off in time to music or just in interesting sequences.
> >
> > The code and electronics are simple but the water valves get spendy.
> >
> >
> > Has anyone found cheap solenid valves?
> > I've thought about inground sprinkler valves but they are kinda slow
> >
> > TIA
> >
> >
> > To UNSUBSCRIBE, just send mail to:
> > basicstamps-unsubscribe@yahoogroups.com
> > from the same email address that you subscribed. Text in the Subject and
> Body of the message will be ignored.
> >
> >
> > Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
> >
> >
> >
>
>
> To UNSUBSCRIBE, just send mail to:
> basicstamps-unsubscribe@yahoogroups.com
> from the same email address that you subscribed. Text in the Subject and Body
of the message will be ignored.
>
>
> Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
>
>
>
Sean T. Lamont, CTO / Chief NetNerd, Abstract Software, Inc. (ServNet)
Seattle - Bellingham - Vancouver - Portland - Everett - Tacoma - Bremerton
email: lamont@a... WWW: http://www.serv.net
"Do not fear mistakes, There Are None" - Miles Davis
> Why do you need the FET? I switched a 12V solenoid using a small reed
> relay and a stamp on the +5 control voltage. Have I done a bad thing?
Well Sean,
The max current sink on a pin is 25mA and source is 20mA. Also generally
(except for the DS-IC)the max sink on ALL pins is 50mA and sink of 40mA.
(The above is an abstract from the Stamp FAQ) at:
http://www.parallax.com/Downloads/Documentation/BASIC%20Stamp%20Frequently%2
0Asked%20Questions.pdf
So if you pick your relay * very carefully* it may well not exceed the
20/25mA limit on a pin. However you may well exceed the overall limit if you
are driving other things such as LEDs. For switching mains current, think in
terms of switching 100mA or more.
I got lazy once and tried switching directly a small 5v reed relay, and it
was just on the limit both for the pin and on overall pin consumption. After
about a month of use, the relay stopped operating - the IO pin died. I
rewired the relay to a spare port, and guess what, the whole stamp died
after a week.
Also, did you remember your back-EMF diode?? Otherwise, expect your pin to
die sooner or later.
Lastly, you don't *need* a FET, any suitable transistor will do - they are
just cheap and handy and extremely robust, and I love them.
Lastly, Lastly, Lastly. For those using processors capable of switching at
speeds in the MHz region - possibly the Javelin is fast enough - and
certainly the Rabbit RCM2000/3000 series - there is a little known issue
when switching at high speeds. At MHz speeds the gate capacitance of a FET
attached to an IO port puts a significant load on the port. The use of FETs
with high gate capacitance can cause significant loading on the IO pins.
Regards,
Tony
Original Message
From: "Sean T. Lamont .lost." <lamont@a...>
To: <basicstamps@yahoogroups.com>
Sent: Tuesday, November 26, 2002 7:47 PM
Subject: Re: [noparse][[/noparse]basicstamps] Low cost water valve? Where to buy...
>
> Why do you need the FET? I switched a 12V solenoid using a small reed
> relay and a stamp on the +5 control voltage. Have I done a bad thing?
>
> On Tue, 26 Nov 2002, tony.wells@a... wrote:
>
> > I've used central heating hot water valves for this job. They are cheap
and
> > easily obtainable from plumbing suppliers. They last for years.
> >
> > However you need to power mains to the unit - so that usually involves a
> > seperate main relay.
> >
> > Whatever you use, don't forget you need semething (like a power FET) to
> > switch the solenoid and a relay to protect the semiconductor from the
back
> > emf when you switch.
> >
> > There are lots of postings here regarding switching relays and solenoids
> >
> > Regards,
> >
> > Tony Wells
> >
> >
Original Message
> > From: "kvasilak" <my427v8@h...>
> > To: <basicstamps@yahoogroups.com>
> > Sent: Tuesday, November 26, 2002 2:58 AM
> > Subject: [noparse][[/noparse]basicstamps] Low cost water valve? Where to buy...
> >
> >
> > > I want to build a 'dancing fountian' where the stamp turns water jets
> > > on and off in time to music or just in interesting sequences.
> > >
> > > The code and electronics are simple but the water valves get spendy.
> > >
> > >
> > > Has anyone found cheap solenid valves?
> > > I've thought about inground sprinkler valves but they are kinda slow
> > >
> > > TIA
> > >
> > >
> > > To UNSUBSCRIBE, just send mail to:
> > > basicstamps-unsubscribe@yahoogroups.com
> > > from the same email address that you subscribed. Text in the Subject
and
> > Body of the message will be ignored.
> > >
> > >
> > > Your use of Yahoo! Groups is subject to
http://docs.yahoo.com/info/terms/
> > >
> > >
> > >
> >
> >
> > To UNSUBSCRIBE, just send mail to:
> > basicstamps-unsubscribe@yahoogroups.com
> > from the same email address that you subscribed. Text in the Subject
and Body of the message will be ignored.
> >
> >
> > Your use of Yahoo! Groups is subject to
http://docs.yahoo.com/info/terms/
> >
> >
> >
>
> Sean T. Lamont, CTO / Chief NetNerd, Abstract Software, Inc. (ServNet)
> Seattle - Bellingham - Vancouver - Portland - Everett - Tacoma - Bremerton
> email: lamont@a... WWW: http://www.serv.net
> "Do not fear mistakes, There Are None" - Miles Davis
>
>
> To UNSUBSCRIBE, just send mail to:
> basicstamps-unsubscribe@yahoogroups.com
> from the same email address that you subscribed. Text in the Subject and
Body of the message will be ignored.
>
>
> Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
>
>
>
I said:
"and a relay to protect the semiconductor from the back emf when you
switch"
I meant to say:
"and a *DIODE* to protect the semiconductor from the back emf when you
switch"
Sorry.
Tony
Original Message
From: <tony.wells@a...>
To: <basicstamps@yahoogroups.com>
Sent: Tuesday, November 26, 2002 2:44 PM
Subject: Re: [noparse][[/noparse]basicstamps] Low cost water valve? Where to buy...
> Oh, I also forgot, you can also recover a used water cut-off solenoid from
> scrap automatic washing machines.
>
> Someone on the list might have an old washing machine in their back yard
> they can send you...
>
> Be carefull with electricity and water - they don't mix well!
>
> Regards,
>
> Tony
>
Original Message
> From: <tony.wells@a...>
> To: <basicstamps@yahoogroups.com>
> Sent: Tuesday, November 26, 2002 2:34 PM
> Subject: Re: [noparse][[/noparse]basicstamps] Low cost water valve? Where to buy...
>
>
> > I've used central heating hot water valves for this job. They are cheap
> and
> > easily obtainable from plumbing suppliers. They last for years.
> >
> > However you need to power mains to the unit - so that usually involves a
> > seperate main relay.
> >
> > Whatever you use, don't forget you need semething (like a power FET) to
> > switch the solenoid and a relay to protect the semiconductor from the
back
> > emf when you switch.
> >
> > There are lots of postings here regarding switching relays and solenoids
> >
> > Regards,
> >
> > Tony Wells
> >
> >
Original Message
> > From: "kvasilak" <my427v8@h...>
> > To: <basicstamps@yahoogroups.com>
> > Sent: Tuesday, November 26, 2002 2:58 AM
> > Subject: [noparse][[/noparse]basicstamps] Low cost water valve? Where to buy...
> >
> >
> > > I want to build a 'dancing fountian' where the stamp turns water jets
> > > on and off in time to music or just in interesting sequences.
> > >
> > > The code and electronics are simple but the water valves get spendy.
> > >
> > >
> > > Has anyone found cheap solenid valves?
> > > I've thought about inground sprinkler valves but they are kinda slow
> > >
> > > TIA
> > >
> > >
> > > To UNSUBSCRIBE, just send mail to:
> > > basicstamps-unsubscribe@yahoogroups.com
> > > from the same email address that you subscribed. Text in the Subject
> and
> > Body of the message will be ignored.
> > >
> > >
> > > Your use of Yahoo! Groups is subject to
> http://docs.yahoo.com/info/terms/
> > >
> > >
> > >
> >
>
>
> To UNSUBSCRIBE, just send mail to:
> basicstamps-unsubscribe@yahoogroups.com
> from the same email address that you subscribed. Text in the Subject and
Body of the message will be ignored.
>
>
> Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
>
>
>
coefficent determins valve size.
There are a bunch of valve makers, some use white metal bodies, some
aluminum, plasitc, brass and stainless.
Once yo uget into the larger valve sizes, they use a pressure assist
from the pressure supply. That is to say that the solenoid only
opens a tiny port and that lets the water pressure in and onto a
large diaphram. That diaphram then opens the main valve. This is
MUCH cheaper to manufacture than a valve that is totally controled by
the solenoid.
These are typically shown with the solenoid being off center of the
valve a good bit. and as you mentioned, the process is slow enough
to be noticable.
Red Lion, Assco, Parker, and similar will offer multiple body
materials.
if you are looking for a commercial project, I highly recomned you
buy new just for the replacemnt availabliity.
but, for a back yard unit, washing machines offer great valves, and
cheap, and with standard garden hose connections. and if you live in
an upscale area, check out the town dump. used washers will abound,
both clothes and dish. Clothes have 2 valves dish and automatic ice
makers on refrigerators have one.
Dave
--- In basicstamps@y..., "kvasilak" <my427v8@h...> wrote:
> I want to build a 'dancing fountian' where the stamp turns water
jets
> on and off in time to music or just in interesting sequences.
>
> The code and electronics are simple but the water valves get spendy.
>
>
> Has anyone found cheap solenid valves?
> I've thought about inground sprinkler valves but they are kinda slow
>
> TIA
will have more design work. I just want something to play with at
this point.
--- In basicstamps@y..., "Dave Mucha" <davemucha@j...> wrote:
> I am surprised that the first question was not "what Cv ?" the
flow
> coefficent determins valve size.
>
> There are a bunch of valve makers, some use white metal bodies,
some
> aluminum, plasitc, brass and stainless.
>
> Once yo uget into the larger valve sizes, they use a pressure
assist
> from the pressure supply. That is to say that the solenoid only
> opens a tiny port and that lets the water pressure in and onto a
> large diaphram. That diaphram then opens the main valve. This is
> MUCH cheaper to manufacture than a valve that is totally controled
by
> the solenoid.
>
> These are typically shown with the solenoid being off center of the
> valve a good bit. and as you mentioned, the process is slow enough
> to be noticable.
>
> Red Lion, Assco, Parker, and similar will offer multiple body
> materials.
>
> if you are looking for a commercial project, I highly recomned you
> buy new just for the replacemnt availabliity.
>
> but, for a back yard unit, washing machines offer great valves, and
> cheap, and with standard garden hose connections. and if you live
in
> an upscale area, check out the town dump. used washers will
abound,
> both clothes and dish. Clothes have 2 valves dish and automatic
ice
> makers on refrigerators have one.
>
> Dave
>
>
>
>
>
>
>
>
> --- In basicstamps@y..., "kvasilak" <my427v8@h...> wrote:
> > I want to build a 'dancing fountian' where the stamp turns water
> jets
> > on and off in time to music or just in interesting sequences.
> >
> > The code and electronics are simple but the water valves get
spendy.
> >
> >
> > Has anyone found cheap solenid valves?
> > I've thought about inground sprinkler valves but they are kinda
slow
> >
> > TIA
us do.
home depot offer water valves for about $10 each, large volume, but
as you say, noticable delay. you could add a delay in the music so
that the signal went 1/4 second before the beat. Believe it or not,
professional lighting for concerts have a longer dalay so they
actually switch before the beat to get the light timed to the music.
Dave
--- In basicstamps@y..., "kvasilak" <my427v8@h...> wrote:
> Well the first one here will use whatever I can get cheap, other
ones
> will have more design work. I just want something to play with at
> this point.
>
> --- In basicstamps@y..., "Dave Mucha" <davemucha@j...> wrote:
> > I am surprised that the first question was not "what Cv ?" the
> flow
> > coefficent determins valve size.
> >
> > There are a bunch of valve makers, some use white metal bodies,
> some
> > aluminum, plasitc, brass and stainless.
> >
> > Once yo uget into the larger valve sizes, they use a pressure
> assist
> > from the pressure supply. That is to say that the solenoid only
> > opens a tiny port and that lets the water pressure in and onto a
> > large diaphram. That diaphram then opens the main valve. This
is
> > MUCH cheaper to manufacture than a valve that is totally
controled
> by
> > the solenoid.
> >
> > These are typically shown with the solenoid being off center of
the
> > valve a good bit. and as you mentioned, the process is slow
enough
> > to be noticable.
> >
> > Red Lion, Assco, Parker, and similar will offer multiple body
> > materials.
> >
> > if you are looking for a commercial project, I highly recomned
you
> > buy new just for the replacemnt availabliity.
> >
> > but, for a back yard unit, washing machines offer great valves,
and
> > cheap, and with standard garden hose connections. and if you live
> in
> > an upscale area, check out the town dump. used washers will
> abound,
> > both clothes and dish. Clothes have 2 valves dish and automatic
> ice
> > makers on refrigerators have one.
> >
> > Dave
> >
> >
> >
> >
> >
> >
> >
> >
> > --- In basicstamps@y..., "kvasilak" <my427v8@h...> wrote:
> > > I want to build a 'dancing fountian' where the stamp turns
water
> > jets
> > > on and off in time to music or just in interesting sequences.
> > >
> > > The code and electronics are simple but the water valves get
> spendy.
> > >
> > >
> > > Has anyone found cheap solenid valves?
> > > I've thought about inground sprinkler valves but they are kinda
> slow
> > >
> > > TIA
[noparse][[/noparse]Non-text portions of this message have been removed]
US $3.75. Runs off 12VDC. Its a Automobile Windshield water pump.
kvasilak <my427v8@h...> wrote:You guys have some great ideas!
Electronic gold mine is new to me and the washer valve idea is gotta
be cheap...
--- In basicstamps@y..., noah ioop wrote:
>
> Try you local Appliance part store for a dish washer's valve.
> tony.wells@a... wrote:Oh, I also forgot, you can also recover a
used water cut-off solenoid from
> scrap automatic washing machines.
>
> Someone on the list might have an old washing machine in their back
yard
> they can send you...
>
> Be carefull with electricity and water - they don't mix well!
>
> Regards,
>
> Tony
>
Original Message
> From:
> To:
> Sent: Tuesday, November 26, 2002 2:34 PM
> Subject: Re: [noparse][[/noparse]basicstamps] Low cost water valve? Where to buy...
>
>
> > I've used central heating hot water valves for this job. They are
cheap
> and
> > easily obtainable from plumbing suppliers. They last for years.
> >
> > However you need to power mains to the unit - so that usually
involves a
> > seperate main relay.
> >
> > Whatever you use, don't forget you need semething (like a power
FET) to
> > switch the solenoid and a relay to protect the semiconductor from
the back
> > emf when you switch.
> >
> > There are lots of postings here regarding switching relays and
solenoids
> >
> > Regards,
> >
> > Tony Wells
> >
> >
Original Message
> > From: "kvasilak"
> > To:
> > Sent: Tuesday, November 26, 2002 2:58 AM
> > Subject: [noparse][[/noparse]basicstamps] Low cost water valve? Where to buy...
> >
> >
> > > I want to build a 'dancing fountian' where the stamp turns
water jets
> > > on and off in time to music or just in interesting sequences.
> > >
> > > The code and electronics are simple but the water valves get
spendy.
> > >
> > >
> > > Has anyone found cheap solenid valves?
> > > I've thought about inground sprinkler valves but they are kinda
slow
> > >
> > > TIA
> > >
> > >
> > > To UNSUBSCRIBE, just send mail to:
> > > basicstamps-unsubscribe@y...
> > > from the same email address that you subscribed. Text in the
Subject
> and
> > Body of the message will be ignored.
> > >
> > >
> > > Your use of Yahoo! Groups is subject to
> http://docs.yahoo.com/info/terms/
> > >
> > >
> > >
> >
>
>
> To UNSUBSCRIBE, just send mail to:
> basicstamps-unsubscribe@y...
> from the same email address that you subscribed. Text in the
Subject and Body of the message will be ignored.
>
>
> Your use of Yahoo! Groups is subject to
http://docs.yahoo.com/info/terms/
>
>
>
>
>
> Do you Yahoo!?
> Yahoo! Mail Plus - Powerful. Affordable. Sign up now
>
> [noparse][[/noparse]Non-text portions of this message have been removed]
To UNSUBSCRIBE, just send mail to:
basicstamps-unsubscribe@yahoogroups.com
from the same email address that you subscribed. Text in the Subject and Body of
the message will be ignored.
Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
Do you Yahoo!?
Yahoo! Mail Plus - Powerful. Affordable. Sign up now
[noparse][[/noparse]Non-text portions of this message have been removed]