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Check Valves

check valves for vacuum chamber?

i'm trying to create a mini vacuum chamber and the plan is to have a cylindrical chamber where i will pull a vacuum. so i figure i need a sort of tap somewhere and attach a air pump of sorts and a check valve would be needed to lock the vacuum in -- once most of what i can possibly suck out has been sucked by the pump.

so anybody got a good idea what sort of valve to use?
and anybody know what's the best pump to use???

The best way to seal in a vacuum is with a stop valve such as a ball valve and not a check valve. Check valves are very bad a leaking.

The term "mini" implies a very small container. I wouls suggest you look at a scientific lab supplier like Fisher Scientific. See below.

Find Check Valves On eBay Below:

BRASS SWING CHECK NON RETURN VALVE BSPP SIZES FROM 3 8 TO 4 METAL SEAT
BRASS SWING CHECK NON RETURN VALVE BSPP SIZES FROM 3 8 TO 4 METAL SEAT
$8.08
TS 012394 25 CERAMA CARTRIDGE W BONNET CHECK VALVE RTC HOT NIB
TS 012394 25 CERAMA CARTRIDGE W BONNET CHECK VALVE RTC HOT NIB
$0.99
PMC Check Valve Assy Kit KT 850
PMC Check Valve Assy Kit KT 850
$34.00
Fits Graco Fusion Air purge 1 one Check Valve Asssembly 246352 246731 PERFECT
Fits Graco Fusion Air purge 1 one Check Valve Asssembly 246352 246731 PERFECT
$45.00
246731 A Check Valve Assembly fits Graco Fusion AP From Professor Foam
246731 A Check Valve Assembly fits Graco Fusion AP From Professor Foam
$49.95
246352 B Check Valve Assembly fits Graco Fusion AP from Professor Foam
246352 B Check Valve Assembly fits Graco Fusion AP from Professor Foam
$49.95
246351 O Rings Check Valve Original Graco Fusion Air Purge Gun AP
246351 O Rings Check Valve Original Graco Fusion Air Purge Gun AP
$34.83
246352 Check Valve B Resin Original Graco Fusion Air Purge Gun
246352 Check Valve B Resin Original Graco Fusion Air Purge Gun
$74.03
117490 Check Valve Spring Original Graco Fusion Air Purge
117490 Check Valve Spring Original Graco Fusion Air Purge
$2.52
5036BC Cast Aluminium Housing Adjustable Dual Valve Door Closer w Back Check
5036BC Cast Aluminium Housing Adjustable Dual Valve Door Closer w Back Check
$49.61
5014BC Cast Aluminium Body Adjustable Dual Valve Door Closer w Back Check
5014BC Cast Aluminium Body Adjustable Dual Valve Door Closer w Back Check
$48.79
503BC Cast Aluminium Body Adjustable Dual Valve Door Closer w Back Check
503BC Cast Aluminium Body Adjustable Dual Valve Door Closer w Back Check
$42.37
9016 Cast Aluminium Body Adjustable Dual Valve Door Closer w Back Check
9016 Cast Aluminium Body Adjustable Dual Valve Door Closer w Back Check
$61.14
504BC Cast Aluminium Body Adjustable Dual Valve Door Closer w Back Check
504BC Cast Aluminium Body Adjustable Dual Valve Door Closer w Back Check
$44.79
Fits Graco GC0044 13867 11 O RING check valve filter screw Glas Craft Probler P2
Fits Graco GC0044 13867 11 O RING check valve filter screw Glas Craft Probler P2
$2.80
248129 Check Valve O Rings 6 ea Original Graco Fusion Air Purge Gun
248129 Check Valve O Rings 6 ea Original Graco Fusion Air Purge Gun
$33.30
248133 Check Valve Face O Rings 6 ea Original Graco Fusion Air Purge Gun AP
248133 Check Valve Face O Rings 6 ea Original Graco Fusion Air Purge Gun AP
$56.70
PMC Check Valve Removal Tool TL 10
PMC Check Valve Removal Tool TL 10
$12.00
246731 Graco Check Valve Iso A Side
246731 Graco Check Valve Iso A Side
$74.00
BRASS SWING CHECK NON RETURN VALVE BSPP SIZES FROM 3 8 TO 4 RUBBER SEAT
BRASS SWING CHECK NON RETURN VALVE BSPP SIZES FROM 3 8 TO 4 RUBBER SEAT
$8.08
BRASS SPRING CHECK NON RETURN VALVE BSPP SIZES 1 2 TO 4 STAINLESS DISC
BRASS SPRING CHECK NON RETURN VALVE BSPP SIZES 1 2 TO 4 STAINLESS DISC
$8.00
Graco Fusion AP Check Valve Housing O Rings Pack of 6 248129
Graco Fusion AP Check Valve Housing O Rings Pack of 6 248129
$31.50
Graco Fusion AP Check Valve Face O Ring Pack of 6 248133
Graco Fusion AP Check Valve Face O Ring Pack of 6 248133
$58.50
US Valve 11125 MA23 1 1 4 Flange SS 5PSI check valve
US Valve 11125 MA23 1 1 4 Flange SS 5PSI check valve
$39.99
US Valve 11125 MA23 1 1 4 weldon SS 5PSI check valve
US Valve 11125 MA23 1 1 4 weldon SS 5PSI check valve
$34.99
Graco B Side Check Valve Resin Repair Kit 246352
Graco B Side Check Valve Resin Repair Kit 246352
$75.00
Graco Fusion AP A Side Check Valve Part 246731
Graco Fusion AP A Side Check Valve Part 246731
$75.00
Graco Spring for check valve NEW 117490
Graco Spring for check valve NEW 117490
$2.50
Stant STN12553 Check Valve PT255 3 3 Pack
Stant STN12553 Check Valve PT255 3 3 Pack
$6.70
Stant STN12553 Check Valve PT255 3 6 Pack
Stant STN12553 Check Valve PT255 3 6 Pack
$10.03
STAINLESS STEEL SWING CHECK VALVE NON RETURN BSP THREAD 1 4 TO 2
STAINLESS STEEL SWING CHECK VALVE NON RETURN BSP THREAD 1 4 TO 2
$17.37
STAINLESS STEEL 316 SPRING CHECK VALVE NON RETURN BSPP THREAD 1 4 TO 4
STAINLESS STEEL 316 SPRING CHECK VALVE NON RETURN BSPP THREAD 1 4 TO 4
$19.54
Graco B Side Check Valve Resin Repair Kit 246352 and also Grace A side ISO
Graco B Side Check Valve Resin Repair Kit 246352 and also Grace A side ISO
$250.00
uxcell 5014BC Cast Aluminium Body Adjustable Dual Valve Door Closer w Back Check
uxcell 5014BC Cast Aluminium Body Adjustable Dual Valve Door Closer w Back Check
$82.81
6 PCS GRACO Fusion AP exact replacement 248129 26g Check Valve O rings
6 PCS GRACO Fusion AP exact replacement 248129 26g Check Valve O rings
$11.99
6 PCS GRACO Fusion AP exact replacement 248133 26f Check Valve Face O rings
6 PCS GRACO Fusion AP exact replacement 248133 26f Check Valve Face O rings
$13.99
Graco Fusion Air Purge  AP  Check Valve O Ring Radial Pack of 6 248129
Graco Fusion Air Purge AP Check Valve O Ring Radial Pack of 6 248129
$37.00
Stant STN12553 Check Valve PT255 3 9 Pack
Stant STN12553 Check Valve PT255 3 9 Pack
$13.13
Graco GX 7 Check Valve Kit 10 Pack 296722
Graco GX 7 Check Valve Kit 10 Pack 296722
$388.00
Graco Check Valve Ball 1 4 Diameter 302 SST GC0259
Graco Check Valve Ball 1 4 Diameter 302 SST GC0259
$1.40


Recently Purchased Check Valves:


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